Many read-world datasets can be characterized as follows: the "extrinsic dimension" of the data is high, but the "intrinsic
dimension" is low. Consider for example the data generated by a motion capture device. Such a device typically tracks a few hundred dots located on a special suit worn by the tracked person. Each time point corresponds to a vector consisting of the (x,y,z) location of each dot. The extrinsic dimension of these vectors is thus around one thousand. However, the vectors are highly constrained because the dots are placed on a human body that has only a limited number of degrees of freedom. We say that the "intrinsic dimension" is the number of the degrees of freedom of the data.

We are interested in learning algorithms whose performance scales with the intrinsic dimension of the data. We present the random projection trees algorithm which has this type of performance. Moreover, the algorithm is very efficient computationally and can be performed in a streaming fashion where each data point is seen only once.

This is joint work with Sanjoy Dasgupta.

Yoav Freund, UCSD.
Google Tech Talks
October 9, 2009

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Genescient is the world's first computational biology company founded on the use of artificial biological selection to cure the diseases of aging. Our laboratory animals have been selected for longevity through 750 generations for the equivalent of 15,000 human years. I will describe Genescient's multiple pathways toward accelerating human longevity, with parallel enhancements of vigor and function. Genescient applies 21st century genomic technology to identify, screen and develop benign therapeutic substances at precise doses, to defeat the diseases of aging. Our singular approach addresses the complex genomic networks that underlie aging and aging-associated diseases such as cardiovascular disease, Type II diabetes and neurodegenerative diseases. I shall display some results and our first product, due in 2009.

Gregory Benford is a Professor Emeritus at the University of California, Irvine, where he was a Professor of Physics. He is a Woodrow Wilson Fellow, a Fellow of the American Physical Society and was Visiting Fellow at Cambridge University and the Universities of Turin and Bologna. In 1995 he received the Lord Prize for contributions to science. With more than 200 scientific publications, his research encompasses both theory and experiments in the fields of astrophysics and plasma physics. His research has been supported by NSF, NASA, AFOSR, DOE and other agencies. He is an ongoing advisor to NASA, DARPA (Defense Advanced Research Projects Agency) and the CIA.

Dr. Benford is also the author of more than thirty books, nearly all still in print. His work has won many awards, including the Nebula Award for his novel Timescape. His non-fiction Deep Time received much praise in 1999 and he won the United Nations Medal in literature in 1994.

Gregory Benford became Emeritus form the University of California, Irvine, in 2006 in order to found and develop Genescient.

Gregory Benford.
Google Tech Talks
October 9, 2009

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While the U.S. can summon hard power with relative ease, employing soft power is more difficult. Indeed, smart power suggests that hard and soft power are two sides of the same coin, that our interests are protected when our values are promoted. If Americans want to engage the world with efficient and enduring effect, we must better understand the essence of American power and the foundation of the global public square: religious freedom.

The Institute for Global Engagement promotes sustainable environments for religious freedom worldwide. It studies the impact of faith on state and society, it encourages governments to protect religious freedom, and it equips citizens to exercise that freedom responsibly.

Chris Seiple, Ph.D., is the president of the Institute for Global Engagement. A graduate of Stanford, the Naval Postgraduate School, and the Fletcher School for Law & Diplomacy, he is the founder of The Review of Faith & International Affairs , a Senior Fellow at the Foreign Policy Research Institute (Philadelphia), a member of the Council on Foreign Relations (New York), and a member of the International Institute for Strategic Studies (London). His book, The U.S. Military/NGO Relationship in Humanitarian Interventions, is a seminal work in the field, and he is the co-author of International Religious Freedom Advocacy: A Guide to Organizations, Law, and NGOs. Seiple has appeared on BBC, MSNBC, Fox News, CNN, and Saudi TV. He has spoken all over the world, including Tashkent, Doha, Peshawar, Bannu, Moscow, Vladikavkaz, Hanoi, Issakul, Urumchi, Oslo, Hama, and Beijing. A former Marine infantry officer, he also speaks regularly at U.S. military schools regarding national security and religious and cultural engagement.

See what people are saying about IGE and The Review of Faith & International Affairs.

Chris Seiple.
Google Tech Talks
August 12, 2009

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The lightsaber is a supercool gadget that all of us would like to get one. It exhibits many novel light phenomena, notably the light blades of two lightsabers could interact with each other. Unfortunately it takes an enormous amount of energy to achieve that. One of the main difficulties of making a lightsaber is that photons normally do not interact with each other.

In the first part of the talk, I will describe how to make photons interact with each other, which enables the capability of using photons to control photons. This capability has many potential applications in quantum communication and information processing, and other novel optoelectronics devices. Moreover, the configuration is well-suited for on-chip all solid-state implementations.

In the second part of the talk, I will briefly explain what metamaterials are, and some novel optical tricks they can play, such as Harry Potter's invisibility cloak and super lens. In particular, I will discuss the mechanisms and properties of a special class of metamaterials -- metamaterials with ultra-high refractive index. Such artificial structures will be useful in many applications such as subwavelength lithography and imaging, broadband slow-light, and sensitive interferometer.

The talk is for general audience with no background in these fields.

Dr. Jung-Tsung Shen is currently a research associate at Stanford University, working on photon transport in nano-photonics, metamaterials, plasmonics, and thermal and energy transport in nano-structures. He obtained his PhD degree in physics in 2003 from MIT. He was also a graduate scholar at Bell Labs from year 1998 -2001. He will be an assistant professor at Washington University in St. Louis in September this year.

Presented by Jung-Tsung Shen

Google Tech Talks
July 10, 2009

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Fractals and splines have very different geometric features. Fractals can be continuous everywhere, yet differentiable nowhere. Fractals are often selfsimilar curves with fractional dimension. And fractals are also attractors, fixed points of iterated function systems. In contrast, splines are piecewise polynomial curves, so well behaved that they are often used for large scale industrial design and manufacture. Splines are essentially polynomials, so splines are onedimensional curves that are differentiable everywhere. Splines have control points -- polynomial coefficients -- that can be used to control the shape of the spline in an intuitive fashion. Moreover, unlike fractals, splines have parametrizations.

Nevertheless, the goal of this talk is to marry fractals and splines: to demonstrate that fractals and splines share many geometric properties and algorithms. We shall show that just like splines, fractals can be parametrized and fractals have control points that allow us to adjust the shape of the fractal in an intuitive manner. Moreover, just like fractals, splines are attractors, fixed points of iterated function systems. We shall show how to apply fractal algorithms to generate splines and spline algorithms to generate fractals. We conclude that fractals and splines are not really that different after all.

Presented by Ron Goldman, Department of Computer Science, Rice University.

Google Tech Talks
June 15, 2009

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This talk describes three of the most beautiful pieces of code that I have ever written: three different implementations of Hoare's classic Quicksort algorithm. The first implementation is a bare-bones function in about a dozen lines of C. The second implementation starts by instrumenting the first program to measure its run time; a dozen systematic code transformations proceed to make it more and more powerful yet more and more simple, until it finally disappears in a puff of mathematical smoke. It therefore becomes the most beautiful program I never wrote. The third program is an industrial-strength C library Qsort function that I built with Doug...

Google Tech Talks
August 9, 2007

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Merlin Mann, a well known productivity guru and creator of the popular 43 folders website will talk about Getting Things Done, the importance of getting your inbox to zero, and strategies for dealing with high volume email.

Speaker: Merlin Mann

Google Tech Talks
July 23, 2007

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Bryan Cantrill will discuss the Dtrace and how it can be used to significantly improve debugging both for development and live systems.

Speaker: Bryan Cantrill

Google Tech Talks
August 15, 2007

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The scientific hunt for extraterrestrial intelligence is now into its fifth decade, and we still haven't uncovered a confirmed peep from the cosmos. For that matter, we still dont know if life at any level of intelligence exists beyond Earth. Could this mean that finding aliens, even if theyre out there, is a project for the ages one that might take centuries or longer?

The preferred technique used to hunt down cosmic company is to look for persistent radio signals or laser flashes from nearby star systems. But could this be a flawed strategy?

In this presentation, well consider some strategies that new SETI experiments might consider, as well as discuss why its possible that we might find evidence of sophisticated intelligence within only a few decades.

Seth is the Senior Astronomer at the SETI Institute, in Mountain View, California. He has an undergraduate degree in physics from Princeton University, and a doctorate in astronomy from the California Institute of Technology. For much of his career, Seth conducted radio astronomy research on galaxies, and has published approximately sixty papers in professional journals.

He has written several hundred popular magazine and Web articles on various topics in astronomy, technology, film and television. He lectures on astronomy and other subjects at Stanford and other venues in the Bay Area, and for the last six years, has been a Distinquished Speaker for the American Institute of Aeronautics and Astronautics. He is also Chair of the International Academy of Astronautics SETI Permanent Study Group. Every week he hosts the SETI Institutes science radio show, Are We Alone?

Seth has edited and contributed to a half dozen books. He has also been the principal author of four: Sharing the Universe: Perspectives on Extraterrestrial Life, Life in the Universe (textbook with Jeff Bennett), Cosmic Company (with Alex Barnett), and, most recently, Confessions of an Alien Hunter.

Seth Shostak was hosted by Boris Debic.

Presented by Seth Shostak, SETI Institute.
Google Tech Talk
June 11, 2009

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Software programming rock stars test-drive their code, refactor mercilessly and deftly apply design patterns. If youd like to get from musician to rock star status, a good place to start is Industrial Logics eLearning albums. Crafted over the past 4 years, these interactive, multimedia tracks feature challenging labs that rank your level and suggest improvements, engaging videos by experts, stimulating quizzes and an ability to ask questions and receive answers by knowledgeable practitioners. Join Joshua Kerievsky, founder of Industrial Logic, as he guides you through his companys state-of-the-art eLearning albums on timeless software design skills.

Presented by Joshua Kerievsky.
Google Tech Talk
June 9, 2009

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Technology users are technology observers as well: monitoring for problems or opportunities that might arise. Designing interfaces to support the monitoring of technology presents unique challenges: from detecting situations to responding to situations, to changing the tools to match a changing operating environment or the changing knowledge of the observer.

I present "Heed": a scale and framework to help observers of a system evaluate which situations need scrutiny and when, along with an example heed-based interface that encourages the development of situation awareness. I discuss how the framework and interface can be applied to four different situations: server performance, a business's finances, user experience in a community forum, and the risk of disease outbreak at a veterinary clinic.

Conrad Albrecht-Buehler is always on the look-out for new and challenging user problems to explore and design remedies for. He received his Ph.D. at Northwestern University studying human-computer interaction with Don Norman, and is now adjunct faculty at Northwestern's Segal Design Institute teaching user-centered design. His research focuses on interfaces for situation awareness and information visualization. In his spare time, he designs products for stroke survivors and enjoys dog training.

Presented by Conrad Albrecht-Buehler.
Google Tech Talk
February 26, 2009

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Mac OS X "Tiger" introduces Automator, a new application that automates anything on your computer quickly and easily. Join Automator Product Manager Sal Soghoian as he demonstrates how you can use this incredible tool to make using your Mac productive and fun

Sal Soghoian
Google TechTalks
June 27, 2006

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Eric is a grand-prize winner of NASA's Space Settlement Competition, the only Canadian to win in the contest's 16-year history. He is currently attending Toronto's Northern Secondary School.

Eric will be talking about his winning design, which is a 92-page report, filled with detailed drawings done in Google SketchUp. He will cover various topics, including design philosophy, structural design, construction plan, life support systems, and social structure of the space settlement.

http://arvanhalleorg.com/tag/eric-yam/
http://sketchupdate.blogspot.com/2009/05/eric-yam-is-my-new-favorite-sketchupper.html

Presented by Eric Yam
Google Tech Talk
May 22, 2009

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Creative Processes in Science and Technology: Insights from Visual Arts. Presented by Dr. Julio M. Ottino.

Creativity is essential in art, in science, and in technology. But in what way is creativity different in these three areas, and in what way is it similar? Technology is about invention, making and building; science is about unveiling, revealing what may already be there. Philosophers, placing the emphasis on uniqueness, have declared that science is ephemeral and that art is permanent, and have placed artistic creation on the highest plane. Others have taken the same viewpoint. However, is this actually true? Or more pragmatically, are there creative processes and lessons that can be transferred across domains? In what ways do the domains intersect and enrich each other? Julio M. Ottino argues that artistic creativity reveals processes that hold lessons for scientific and technological creativity.

Dr. Julio M. Ottino is the dean of the Robert R. McCormick School of Engineering and Applied Sciences at Northwestern University where he holds the titles of Distinguished Robert R. McCormick Institute Professor and Walter P. Murphy Professor of Chemical and Biological Engineering. Born in Argentina he had a career as an artist before he moved to the U.S. for his PhD in Chemical Engineering at the University of Minnesota. He then held a faculty position at UMass/Amherst and held chaired and senior appointments at Caltech, Stanford, and the University of Minnesota. He joined Northwestern in 1991 and was chairman of the Department of Chemical and Biological Engineering from 1992 to 2000. He was the founder and co-director of the Northwestern Institute on Complex Systems.

Google Tech Talk
May 14, 2009

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How to build Chrome using a tool called GYP "Generate Your Projects".

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This session will focus on building a server-side data source compatible with the Visualization API. It will cover the following topics: Using available Libraries for generic data sources, writing a datasource, and datasources on AppEngine.

-- Contents --
0:05 - Agenda
1:00 - What is Google Visualization API?
9:30 - Remote Data Source
14:32 - The Java Open Source Data Source library
17:04 - Java Data Source Demo
31:48 - SalesForce.com Data Source implementation
43:20 - Q&A
-- End --

Itai Raz, Nir Bar-Lev, Jesse Lorenz

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Deeya Energy is a Fremont based company that developed a flow battery that can scale. Starting at 2.3 KW, this technology has the potential of reducing diesel consumption in mission critical applications and can smooth out energy provisioning when paired with renewable resources.

Presented by John Davis.
Google Tech Talk
May 28, 2009

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Social-networking sites have grown tremendously in popularity in recent years. Services such as Facebook and MySpace allow millions of users to create online profiles and to share details of their personal lives with vast networks of friends, and often, strangers. Inevitably, the disclosure of personal information has implications on users privacy: digital stalking and identity theft are some of the most common threats. Unfortunately, even sophisticated users who value privacy will often compromise it to improve their presence in the virtual world. They know that loss of control over their personal information poses a long-term threat, but they cannot assess the overall and long-term risk accurately enough to compare it to the short-term gain. Even worse, setting the privacy preferences in online services is often a complicated and time-consuming task that users usually skip. To address these issues, we are developing mechanisms and platforms to measure and monitor users privacy risks and help them easily manage their information sharing. In this talk, we will introduce our work in this area, and also discuss how it work can be incorporated with OpenSocial.

Speaker Info:

Kun Liu, Ph.D., is a postdoctoral researcher at IBM Almaden Research Center. He received his Ph.D. from University of Maryland Baltimore County in 2007. His research interests include data mining, social-network analysis and text analytics. His featured work is in the area of privacy-preserving data mining, where he developed advanced privacy and risk management techniques that greatly facilitate the integration, sharing and analysis of data owned by different parties without compromising their privacy. More information about him can be found at http://www.cs.umbc.edu/~kunliu1

Evimaria Terzi, Ph.D., has been a researcher at IBM Almaden since June 2007. She obtained her Ph.D. from the University of Helsinki, Finland, in January 2007; her M.Sc. from Purdue University in 2002; and her B.Sc. from the University of Thessaloniki, Greece, in 2000. Her research interests are in the area of algorithmic data mining with applications to social-network analysis, information retrieval, and databases. More information about her can be found at http://www.cs.helsinki.fi/u/terzi/

Dr. E. Michael Maximilien, (aka max) is a research staff member at IBM's Almaden Research Center in San Jose, California. Prior to joining ARC, Max spent ten years at IBM's Research Triangle Park, N.C., in software development and architecture. Max led various small- to medium-sized teams, designing and developing enterprise and embedded Java™ software; he is a founding member and contributor to three worldwide Java and UML industry standards. Max's primary research interests lie in distributed systems and software engineering for the Web, especially Web APIs and services, mashups, Web 2.0, cloud computing, SOA (service-oriented architecture), social software, and Agile methods and practices. Max is also active participants and contributor to communities related to Ruby, Ruby on Rails, and Agile methods and practices, inside and outside of IBM. Reach Max via his Web site (www.maximilien.com) and blog (blog.maximilien.com).

Presented by Kun Liu.
Google Tech Talk
May 19, 2009

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As an interpreted language, JavaScript is filled with hidden performance issues that conspire to slow down your code and ruin the user experience. Learn exactly what is fast, what is slow, and what you can do to squeeze that last bit of performance out of your JavaScript code.

Nicholas C. Zakas is the author of Professional JavaScript for Web Developers, 2nd Edition (Wrox, 2009), co-author of Professional Ajax, 2nd Edition (Wrox, 2007), and a contributor to Even Faster Web Sites (O'Reilly, 2009). Nicholas is principal front end engineer for the Yahoo! homepage and is also a contributor to the Yahoo! User Interface (YUI) library.

The Web Exponents Series is hosted by Steve Souders

Presented by Nicholas C. Zakas.
Google Tech Talk
June 4, 2009

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Text content can allow unintended inferences. Consider, for example, the numerous people who have published anonymous blogs for venting about their employer only to be identified through seemingly non-identifying posts. Similarly, the US government's "Operation Iraqi Freedom Portal" was assembled as evidence of nuclear weapons presence in Iraq, but removed because it could be used to infer much of the weapon making process. We propose a simple, semi-automated approach to detecting text-based inferences prior to the release of content. Our approach uses association rule mining of the Web to identify keywords that may allow a sensitive topic to be inferred. While the main application of this work is data leak prevention we will also discuss how it might be used to detect bias in product reviews. Finally, if time permits, we will discuss how inference detection can support topic-driven access control.

Most of this talk is joint work with Richard Chow and Philippe Golle.

Jessica is an area manager at PARC (aka Xerox PARC). She received her PhD in Math from U. C. Berkeley and has held research scientist positions at RSA Labs and Bell Labs. Jessica's background is in applied cryptography, specifically, cryptographic protocols for large, dynamic groups. Her current research interests include the use of data mining to support content privacy.

http://www.parc.com/jstaddon

Presented by Jessica Staddon.
Google Tech Talk
February 13, 2009

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License agreements and privacy statements are common features of software and software services, but less than 2% of the population actually read them. While many companies have little motivation to compel users to read such agreements, there are nonetheless times when it is advantageous to effectively communicate legal terms to one's user base.

In this talk, I present results from research redesigning the software license agreement process. In this work, we explored alternative interaction designs as well as new visual designs. Our most successful result, a Textured Agreement, is a visually redesigned software agreement that captures people's attention, conveys the personal relevance of the content, and increases the ease with which one can navigate and read the agreement. Results from an experimental study show that this design significantly increases reading time and is preferred by users. Furthermore, our data indicate these results are not simply due to the novelty of the design, but, rather, due to the particular set of design elements chosen. Our study also sheds light on the efficacy of providing summaries, an oft-proposed means of addressing the license agreement problem. In our experiment, we found that users read summaries, but then ignore the full agreement, a result that cautions against their use in practice.

Michael Terry is an assistant professor in the David R. Cheriton School of Computer Science at the University of Waterloo, where he co-directs the Human-Computer Interaction (HCI) Lab. His research focuses on developing, deploying, and evaluating new tools to support usability needs in open source software development. He received a BS from Cornell University, a MS from Florida Tech, and a PhD from Georgia Tech.

Presented by Michael Terry (mterry@cs.uwaterloo.ca)
Google Tech Talk
May 12, 2009

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Mike "Mish" Shedlock is author of one of the most read economics blogs on the Internet: Mish's Global Economic Trend Analysis [http://globaleconomicanalysis.blogspot.com/].

Mish gave an @Google talk, sharing his perspective on the state of the global economy (housing, the stock market, commodities, etc.) He also provides his interesting story about how he started blogging, and the impact that it has had on his life personally and professionally.

In January, Time.com ranked his site the #1 based on a rounded set of criteria [http://www.time.com/time/business/article/0,8599,1873144-3,00.html]. From the article:

"Although Mish is not an economist by training, he adroitly gets into the thick of economic data. Mish uses observations made by those in major media, so-called experts and government officials and serves up analysis based on his impression of their relevance and validity. The author is not afraid to attack conventional wisdom."

Presented by Mike "Mish" Shedlock.
Google Tech Talk
May 6, 2009

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A talk by Matthew Landauer
Founder/Developer

matthew@openaustralia.org

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Panoramic and spherical-view cameras today are by and large one of three types:

1. A single camera with wide-angle optics, such as a fisheye lens or curved mirror;
2. Multiple cameras looking out directly in different directions; or
3. Multiple cameras looking out off flat mirrors, which is FullViews patented approach.

Whereas multiple cameras offer much higher resolution than any single camera, multiple cameras looking out directly are in general incapable of producing seamless, artifact-free and blur-free composite images no matter what, because of parallax. FullView evades parallax through its patented approach in which multiple cameras look out off flat mirrors such that all the cameras are effectively looking out in different directions but from the same single viewpoint. As a result, FullViews composite images, whether video or still, and irrespective of their resolution, are always seamless, artifact-free and blur-free, and they provide much higher resolution than outwardly pointing cameras.

Vic Nalwa, President, FullView, Inc., and inventor of the FullView camera technology when he was at Bell Labs

Presented by Vic Nalwa.
Google Tech Talk
May 27, 2009

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Former NASA engineer Neal Saiki discusses the design of the Zero X and and Zero S electric motorcycles, as well as the challenges inherent in getting the Zero Motorcycles business off the ground.

The Zero X dirt bike shipped in 2008 and was designed from the ground up to operate solely on electric power. The Zero X chassis is made out of aircraft aluminum and one of the lightest motorcycle frames on the planet at 18 pounds. The bike has a total weight of 140 pounds.

The Zero S street bike was introduced in April 2009. It was also designed from scratch as a high performance electric-only vehicle.

More info at http://www.zeromotorcycles.com/

Speaker Info:

Neal Saiki, inventor and founder of Zero Motorcycles, Scotts Valley CA.

Presented by Neal Saiki
Google Tech Talk
May 26, 2009

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Charles Pooley speaks about his work in creating *VERY* small rockets (~500kg) to launch a one pound payload to orbit or beyond.

http://www.microlaunchers.com/

Charles Pooley

Google Tech Talk
March 3, 2009

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The Java Card™ system is the smallest Java™ platform available, but what can you do with it? This session covers some interesting examples involving the playSIM development kit.

playSim is an open-source development kit for prototyping new and creative Java Card 3 technology-based applications without the hardware limitations of today's smart cards. It combines the flexibility of the open Sun SPOT platform with the hard security requirements of SIM-card-based applications. Sun SPOT is used as an execution engine as well as a modular hardware platform to enable connection of different types of sensors and I/O interfaces.

See how the presenters combine the flexibility of open-source technologies such as Sun SPOTs and Squawk Virtual Machine with the commercial license aspects of the Java Card 3 platform.

Come see how to

• Experiment with Java Card 3 in the embedded domain through the I/O capabilities of the Sun SPOT platform
• Get started with Java Card 3 Servlets, even without terminal support
• Simulate SIM and smart cards with embedded radios
• Experiment with Near Field Communication (NFC), using regular radios
• Create new machine-to-machine interactions
• Add one or two boards to a Sun SPOT and have a ready playSIM kit
• Simulate smart cards with gigabytes of memory, using ordinary MiniSD cards

Presented by Eric Arseneau, Sun Microsystems, and Fritjof Engelhardtsen, Telenor.
Google Tech Talk
June 5, 2009

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Mankind's fossil fuel burning releases CO2 into the atmosphere, contributing to global warming and deadly air pollution. Natural resources are rapidly being depleted by world population growth. Safe, inexpensive energy from the liquid fluoride thorium reactor can stop much global warming and raise prosperity of humanity to adopt US and OECD lifestyles, which include lower, sustainable birth rates.

Presented by Robert Hargraves.

Google Tech Talk
May 26, 2009

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The Church-Turing thesis is one of the foundations of computer science. The thesis heralded the dawn of the computer revolution by enabling the construct of the universal Turing machine which led the way, at least conceptually, to the von Neumann architecture and first electronic computers. One way to state the Church-Turing thesis is as follows:

A Turing Machine computes every numerical function that is computable by means of a purely mechanical procedure.

It is that remarkable and a priori implausible characterization that underlies the ubiquitous applicability of digital computers. But why do we believe the thesis? Careful analysis shows that the existing arguments are insufficient. Kurt Gdel surmised that it might be possible to state axioms which embody the generally accepted properties of computability, and to prove the thesis on that basis. That is exactly what we did in a recent paper with Nachum Dershowitz of Tel Aviv University.

Beyond our proof, the story of the Church-Turing thesis is fascinating and scattered in specialized and often obscure publications. I will try to do justice to that intellectual drama.

Yuri Gurevich is Principal Researcher at Microsoft Research in Redmond, WA. He is also Prof. Emeritus at the University of Michigan, ACM Fellow, Guggenheim Fellow, a member of Academia Europaea, and Dr. Honoris Causa of a couple of universities.

Presented by Yuri Gurevich.
Google Tech Talk
June 8, 2009

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Today's JavaScript is a decent language for writing small scale scripts. But even for beginners, it has too many minefields between what beginners learn and what they need to know. And JavaScript is now increasingly used for serious software engineering projects – straining to carry a load it was not designed for.

After 10 years, the world of JavaScript standards is moving again. The next version, EcmaScript 5, is in "final draft standard" status with implementations about to appear. The "Harmony" agreement sets the direction for future versions beyond EcmaScript 5. The "Secure EcmaScript" working group is working towards an EcmaScript 5 subset suitable for the security needs of inline gadgets, mashups, and more.

In this first talk, we'll explain changes in EcmaScript 5, the problems they're meant to address, the de-facto standards they codify, and how these changes are likely to affect web applications.

Waldemar Horwat has been involved with JavaScript standardization and implementation since the 1990's when he was working on Netscape's implementation. He is a former editor of the standard and wrote parts of the existing ECMAScript Edition 3 standard. He participates in the ECMA TC39 committee and is the Google representative at the ECMA General Assembly.

Mark S. Miller is a research scientist at Google working on Caja, a member of the EcmaScript committee, open source coordinator for the E programming language, a pioneer of agoric (market-based secure distributed) computing, and an architect of the Xanadu hypertext publishing system.

Mike Samuel is an engineer on Caja and a member of the Secure EcmaScript working group.

Presented by Mark Miller, Waldemar Horwat, and Mike Samuel.

Google Tech Talk

May 18, 2009

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Medical advances are undoubtedly some of mankind's greatest innovations. Here, success may be measured in millions of saved lives and permanent quality of life improvement for civilization.

This presentation examines six medical advances and their contemporary reception, with comments from invited illuminati and ghosts of the past. The six medical advances are:

1. Human Anatomy Understanding
2. Curing Scurvy
3. Curing Smallpox
4. Curing Childbed Fever
5. Germ Theory
6. Curing Pellagra

Individuals who find frank and candid discussions of unpleasant health realities disturbing should consider whether to expose themselves to this graphic, no-holds-barred, historical survey.

W. David Schwaderer is a veteran Silicon Valley executive and entrepreneur. He has authored six commercial software programs and ten technical books. His soon-to-be-published eleventh book is titled Innovation Survival - Concept, Courage and Change.

David has lectured on innovation at Stanford, MITs Sloan School of Management and School of Engineering SDM Program, and the Naval Postgraduate School. In Silicon Valley, he has presented at Intel, Sun Microsystems, and Symantec, among other enterprises.

David has a Masters Degree in Applied Mathematics from the California Institute of Technology and an MBA from the University of Southern California. He lectures here at Google for the third time discussing his favorite subject - Innovation Survival.

http://www.innovationsurvival.com/

Presented by W. David Schwaderer
Google Tech Talk
May 12, 2009

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Charlie Halpern is a public interest entrepreneur, an innovator in professional education, and a pioneer in the public interest law movement. His book, Making Waves and Riding the Currents: Activism and the Practice of Wisdom, was released in 2008.

In this talk, Charlie will draw on the main theme of his book— that the practice of wisdom is necessary to make our work in the world effective and sustainable. He will discuss the reasons that wisdom is particularly urgent in dealing with the unprecedented challenges and opportunities of the 21st century. An engaging story-teller and speaker, he will illustrate his points with personal stories of his career as an institutional innovator and his interactions with Ralph Nader, the Dalai Lama, Barack Obama, and others.

Presented by Charlie Halpern.
Google Tech Talk
May 11, 2009

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I built a balancing robot that uses vision to dance with people using the Parallax Propeller multi-core processor. My talk will cover the robot and the tool I wrote to build and debug sophisticated embedded systems. ViewPort now supports computer vision using OpenCV, fuzzy logic, physics simulation, and monitoring telemetry with simulated instruments. I use Google Checkout, Analytics, CustomSearch, and Adsense to sell my software on my website: http://mydancebot.com

Hanno Sander has been working with computers since he programmed a lunar lander game for the z80 when he was six. Since then, he graduated from Stanford University with a degree in computer science and then started his corporate career as an Internet entrepreneur. Hanno moved to New Zealand in 2005 to spend time with his growing family and develop sophisticated, yet affordable, robots starting with the DanceBot. His technical interests include computer vision, embedded systems, industrial control, control theory, parallel computing, and fuzzy logic.

Presented by Hanno Sander
Google Tech Talk
May 12, 2009

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Hadoop, the open-source implementation of MapReduce, provides unprecedented opportunities for both research and education. On the research side, academics are now able to explore problems at scale with modest resource investments, either with inexpensive commodity clusters or through utility computing services. On the education side, Hadoop provides a nice vehicle to teach students about large-scale distributed processing.

In this talk, I will present "cloud computing" activities at the University of Maryland, in collaboration with Google/IBM under the Academic Cloud Computing Initiative and in partnership with Amazon Web Services. Efforts include semester-long Hadoop courses, as well as research projects in text processing and bio-informatics. I will specifically focus on my attempts to integrate research with education, to the benefit of both.

Jimmy Lin is an Associate Professor in the iSchool at the University of Maryland, with affiliations in the Department of Computer Science and the Institute for Advanced Computer Studies, as well as the National Center for Biotechnology Information (NCBI), National Library of Medicine (NLM), the National Institutes of Health (NIH). He received a Ph.D. in Electrical Engineering and Computer Science from MIT in 2004. Dr. Lin's research primarily lies at the intersection of information retrieval and natural language processing, but his interests extend to human-computer interaction, bio-informatics, medical informatics, and large-scale distributed systems.

Presented by Jimmy Lin
Google Tech Talk
May 6, 2009

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Cloud computing and its predecessors, grid and utility computing, all address shared, on-demand computing at scale. To achieve sufficient scale to amortize costs, cloud computing emphasizes saving human time through 1) automated management, 2) easier programming using systems like MapReduce and Hadoop, and 3) shared and open access.

Existing architectures for achieving these goals are composed of largely isolated resource allocation sub-systems (e.g., for MapReduce scheduling, virtualization, CPU, network bandwidth, power, etc.) These sub-systems have global impact, but local visibility, which can cause them to work against each other. The shared, open nature of cloud computing systems requires balancing the need to do efficient local allocation of resources and the need to regulate and differentiate applications globally.

We take a clean slate approach to designing a cloud computing architecure. We apply economic mechanisms to resources at every layer from the high-level Hadoop system through the allocation of virtualized resources to physical servers. We find that this approach 1) simplifies system design, 2) provides more high-level optimization opportunities, 3) provides greater control over predictability, and 4) increases overall application utility.

Kevin Lai is a Research Scientist in the Social Computing Lab at HP Labs. He has done research on operating systems, mobile and wireless networking, network measurement, and economic approaches to resource allocation. He is currently the lead developer of the Open Cirrus cloud computing system. He received his Ph.D. in Computer Science from Stanford University.

Presented by Kevin Lai
Google Tech Talk
May 8, 2009

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Nuclear weapons are the elephant in the room that almost no one talks about. This presentation therefore approaches the subject from the much less threatening -- actually downright attractive -- perspective of soaring. Risk analysis is the glue that ties the two subjects together, while my experience in developing public key cryptography provides an important lesson on the positive side.

Related links: http://nuclearrisk.org/soaring_article.php is an article that is closely related to the talk. Another link of interest is http://nuclearrisk.org/paper.pdf.

Martin Hellman is Professor Emeritus at Stanford University and co-inventor of public key cryptography.

Presented by Martin Hellman
Google Tech Talk
May 7, 2009

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Recently, social-networking applications have started to appear on mobile phones. These applications can exploit a phone's positioning capabilities to facilitate interaction between people. From a privacy point of view, this trend is troublesome because it often results in the provider of a social-networking application having real-time access to users' location. In turn, a user's location could reveal information about her activities or interests to the provider. I will outline two solutions that protect a user's location privacy. The first solution allows a user to become aware of a friend who happens to be nearby without the friend and the user being able to track each other continuously and without a centralized party being able to track either of them. The second solution allows a user to access a location-based service (e.g., a service that provides a listing of points of interest close to the user) such that the server cannot distinguish between the user issuing the query and other nearby users. Both of the presented solutions are based on cryptography and have been implemented and evaluated. The prototype implementation of our privacy-protecting application for alerting people of nearby friends is available at http://crysp.uwaterloo.ca/software/nearbyfriend.

Speaker's bio:
Urs Hengartner is an assistant professor in the David R. Cheriton School of Computer Science at the University of Waterloo, Canada. His research interests are in information privacy and in computer and networks security. His current research goals are to increase the security of emerging computing environments, such as pervasive computing, location-based services, and electronic voting, and to design privacy-enhancing technologies for people who want to benefit from these environments. He has a degree in computer science from ETH Zurich and an M.S. and Ph.D. in computer science from Carnegie Mellon.

Presented by Urs Hengartner
Google Tech Talk
April 30, 2009

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Thanks to the new OAuth Proxy, developers can write JavaScript gadgets for OpenSocial containers that can securely access Google Data APIs. But did you ever wonder what goes on behind the scenes? This session will present a walkthrough of an OpenSocial gadget and will explain the components and their interactions that make such secure access possible.

For those who are attending I/O, we thought it might be useful to hear from some of the speakers in advance. These videos provide a preview of one or more topics that will be covered in their talks.

Eric Bidelman & Monsur Hossain

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Google is incorporating today's open identity and authorization standards into not only its consumer applications, but also its enterprise software and its internal operations. Learn how Google both contributes to the advance of these technologies and applies them in practice.

For those who are attending I/O, we thought it might be useful to hear from some of the speakers in advance. These videos provide a preview of one or more topics that will be covered in their talks.

Eric Sachs

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UltraWide-Band (UWB) radio technology provides fine time resolution and excellent material penetration. This Tech talk covers research using custom radio chips, smart antenna's, and coding techniques to design handheld "Localizer's" which transmit and receive coded pulses to communicate and measure distances between nodes. Several nodes can be used to form a mobile ad hoc network that provides accurate 3D position and communication or the transmissions of the nodes can be coordinated in time as a MIMO to perform beam forming and steering to increase range and data rate.

Presented by Vincent Coli

Google Tech Talk
May 1, 2009

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Virtualization is currently being used in cloud computing environments and traditional IT environments to improve the flexibility and manageability of the computing infrastructure, and to enable the sharing of computing resources. This means that applications (such as database systems) are increasingly being run on virtual machines and using virtualized storage. The performance of an application in this environment is affected by the configuration and tuning decisions made at the virtual machine/storage level. In this talk, I will demonstrate that coordinating between the application and the virtualization environment when making these tuning decisions can result in significant performance gains. I will present three examples of such application informed tuning: (1) configuring multiple virtual machines running database workloads on the same physical server, (2) improving the caching decisions of a storage server running a database workload, and (3) scheduling a batch of Map-Reduce jobs running on a cluster of virtual machines.

Speaker Info:

Ashraf Aboulnaga is an Assistant Professor in the David R. Cheriton School of Computer Science at the University of Waterloo. His research interests are in the area of database management, with a current focus on database issues in virtualized and cloud computing environments, self-managing database systems, XML databases, data integration, and data management on the web. Ashraf obtained his PhD from the University of Wisconsin in 2002. Prior to joining the University of Waterloo, he was a Research Staff Member in the Data Management Department at the IBM Almaden Research Center in San Jose, California, from 2002 to 2004. He is a holder of a Google Research Award in the area of data integration.

Speaker: Ashraf Aboulnaga, David R. Cheriton School of Computer Science, University of Waterloo
Google Tech Talk
April 16, 2009

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Chromium's multi-process architecture and tight integration with WebKit necessitate a heavily layered approach. In this talk, Brett Wilson introduces each of the layers and explains how they fit together. This video is a great complement to this page: http://dev.chromium.org/developers/design-documents/displaying-a-web-page-in-chrome.

Contents
0:00 - Introduction
2:12 - WebKit Glue layer
5:03 - The Render process
5:38 - Renderer Host
6:40 - Tab Contents layer
7:00 - Browser Window
8:00 - Check Deps (dependencies)
9:14 - Q & A

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Chromium's multi-process architecture is a radical departure from other web browsers. There are many advantages to this design, but with it comes complexity. Darin Fisher gives an overview of how the processes communicate and then dives into specific examples like how optimized scrolling works. This video is a "must see" for any Chromium developer.

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WebKit is at the heart of Chromium, Safari, and many other web browsers. Because we all share WebKit, the procedure for its development is a bit different than the rest of Chromium. Dimitri Glazkov gives a thorough introduction to WebKit for Chromium developers including productivity tips.

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Ben Goodger presents a brief introduction of the Chromium views system used to build UI on Windows. This talk covers the basics of using views, as well as some details about how it works under the hood.

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Recently, Chromium's network stack was completely re-written. Wan-Teh Chang and Eric Roman present the reasons for the re-write, an overview of the code's components, and walk through some common network stack operations.

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In this session PPK will discuss some aspects of mobile browser compatibility as well as W3C Widgets, which promise to be the first open, universal standard for creating small and large applications on mobile phone.

Peter-Paul Koch is a freelance front-end consultant, agent, and trainer in Amsterdam, the Netherlands. He has won international renown with his browser compatibility research, frequently speaks at conferences, has founded Fronteers, the Dutch association of front-end professionals, and advises browser vendors on their implementation of the web standards.

On the Web he is universally known as ppk.

He feels like Caesar when he talks about himself in the third person, but he will not conquer Gaul. More importantly, he will not write his memoirs in Latin.

Presented by Peter-Paul Koch
Google Tech Talk
April 24, 2009

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The Electronic Frontier Foundation (EFF) is one of the leading online civil liberties groups. Join EFF attorneys as they deliver the the latest on the fight against warrantless wiretapping, promoting increased government transparency, and protecting your right to use the media you own. From the DMCA to DefCon, NSA to RIAA, they'll spell out what's happening where law, tech, and civil liberties collide.

Panelists are Fred von Lohmann, Marcia Hofmann, and Kurt Opsahl.

Fred von Lohmann is a senior staff attorney with the Electronic Frontier Foundation, specializing in intellectual property matters. In that role, he has represented programmers, technology innovators, and individuals in a variety of copyright and trademark litigation, including MGM v. Grokster, decided by the Supreme Court in 2005.

Marcia Hofmann is an EFF staff attorney working on government transparency, civil liberties, and intellectual property issues. Along with her colleague David Sobel, she established EFF's FOIA Litigation for Accountable Government (FLAG) Project.

Kurt Opsahl is a Senior Staff Attorney with the Electronic Frontier Foundation focusing on civil liberties, free speech and privacy law. Before joining EFF, Opsahl worked at Perkins Coie, where herepresented technology clients with respect to intellectual property, privacy, defamation, and other online liability matters, including working on Kelly v. Arribasoft, MGM v. Grokster and CoStar v. LoopNet. For his work responding to government subpoenas, Opsahl is proud to have been called a "rabid dog" by the Department of Justice.

Google Tech Talk
April 27, 2009

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Until recently, searching for help on highly technical programming problems has been a mess. A lot of what the search engines found was old discussions in forums, where you have a lot of wrong answers and out-of-date answers that you have to sift through yourself. You also found a lot of answers at sites that were hidden behind a pay wall, which uncloaked themselves for Google and then demanded membership fees to see the answers.

StackOverflow.com is a programmer's Q&A site that launched last September to address these problems. It incorporates more modern ideas about community such as voting and public editing, and even a few ideas from game design, to create a much more successful way to get help with programming problems. In a few short months, it has grown to 14 million page views a month and reaches 3 million unique programmers every month. The lessons we've learned in creating a successful Q&A site has many implications for search which I'll share in this talk.

Presented by Joel Spolsky
Google Tech Talk
April 24, 2009

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The band Nine Inch Nails recently released a ground-breaking geo-Twitter-like iPhone / Google Earth plug-in application. This follows on the heels of many creative uses of KML and Google Earth to communicate with fans. This talk is from the software developer team that supports the band.

http://access.nin.com/

Throughout the last couple of years Google Earth has enabled us to present amazing visualizations and perspectives to those interested in Nine Inch Nails, from releasing download numbers of the latest album, plotting tour-dates and geo-cached ticket treasure hunts to the latest realtime integration with geo-located mobile fans. We present our conceptual and technical experiences integrating the Nine Inch Nails online community with Google Earth and the Google Earth plugin.

Presented by Craig Johnston and Brian Hull
Google Tech Talks
April 28, 2009

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