The computer industry had an opportunity to learn about the technical details of Google’s infrastructure during LADIS 2009, ACM’s recent SIGOPS International Workshop on Large Scale Distributed Systems and Middleware. Jeff Dean, a Google engineer who was one of the keynote speakers, also talked about Spanner, a new storage and computation system for automating the management of services across multiple data centers. Spanner, which will have a scale of 1 million to 10 million servers in the future, would be capable of automatically allocating resources across “entire fleets of machines,” Dean says. The goal will be “automatic, dynamic, worldwide placement of data and computation to minimize latency or cost.” Spanner also would offer a cost management strategy for addressing regional differences in bandwidth and power costs. Google would have energy management opportunities because Spanner can seamlessly shift workloads between data centers. Automated capacity management also would enable Google to route around failures or data center downtime as well as plan more energy-efficient facilities.

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The United States remains the world’s leader in science and technology, based on factors such as gross dollars spent, relative spending on research, research articles published, and patents granted, according to the National Science Board’s biennial report on science and engineering. The report says the U.S. accounted for nearly one third of the $1.1 trillion spent on research and development (R&D) worldwide in 2007. From 1998 to 2007, R&D spending grew between five and six percent annually in the United States, Japan, and the European Union. However, R&D spending in India, South Korea, and Taiwan grew an average of nine to 10 percent per year during that period, and Chinese spending grew by more than 20 percent per year. Out of approximately 760,000 research articles published in 2008, 25 percent were written by U.S. researchers. Chinese scientists published about eight percent of the research articles, up from one percent in 1988. U.S.-based inventors accounted for 49 percent of the patents granted in 2008, down from 55 percent in 1995.

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Researchers at the Warsaw University of Technology in Poland have studied the characteristics of voice over Internet Protocol (VoIP) calls in an attempt to gain a better understanding of ordinary traffic. Security remains an issue for VoIP calls, which can be hijacked and used to send confidential information over the Internet. Wojciech Mazurczyk and colleagues decided to study ordinary VoIP calls so experts would have a way to compare and contrast regular calls with those that have been embedded with stolen data. VoIP calls can be compromised by changing the order in which the digital packets are sent, or by deliberately delaying certain packets that have embedded data, a technique known as Lost Audio Packet Steganography (LACK). The team’s research shows that packets are not normally re-ordered in a way for hiding data, so attacks that re-order data are not a real threat. However, LACK attacks would be difficult to spot because of the routine loss of data packets.

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A panel of experts told U.S. senators at a recent hearing of the Senate Committee on Commerce, Science, and Transportation that the United States would be defeated in an all-out cyberwar, and reducing this vulnerability will not occur until the government takes a more active interest in safeguarding the nation’s network. Former director of national security and national intelligence Michael McConnell warned that greater government involvement may not happen until after a “catastrophic event” transpires. The focus of the hearing was the Cyber Security Act of 2009, which would oversee organizations and companies that supply critical U.S. infrastructure, mandate licensing and certification for cybersecurity professionals, and sponsor grant and scholarship programs.

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Oxford University researchers have developed the Parallel Tracking and Mapping (PTAM) program, a camera-tracking system for fusing real and three-dimensional (3D) computer-generated visuals. PTAM enables users to project virtual objects or characters into a video stream that appears on real world surfaces. “The blending of real and virtual worlds is common enough in films and television, but is usually achieved by extensive processing of the recorded images or by filming in studios with known objects at fixed locations,” says Oxford professor David Murray. “The PTAM software allows developers to augment a camera’s video stream in real time and in everyday locations.” PTAM builds a map of thousands of features from objects and scenes, tracks accurately and at a standard frame rate, and calculates the camera viewpoint and angle. The technology also could improve global positioning systems and digital compasses, and provide support for satellite, 3G, and Wi-Fi signals.
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University of the Basque Country (UBC) researcher Markel Vigo recently published his Ph.D. thesis on the Web Accessibility Quantitative Metric (WAQM), a system that automatically measures the accessibility level of a Web page. WAQM can measure the level of accessibility according to the type of disability of each person and automatically create an accessibility report for each Web page. This allows users to conduct an Internet search and have criteria related to their specific disability taken into consideration. The system uses the Unified Guidelines Language to give each Web page a score, which is shown next to the Web page’s link, based on its level of accessibility. Vigo says his system gives people with disabilities more control when carrying out a search on the Internet. WAQM also can create different accessibility grades based on the type of device that is being used. Each user gets a profile based on information about the type of disability, the Internet device of choice, and other factors, and this profile is used to personalize the accessibility report for each Web page.
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Aberystwyth University researcher Stephen Pugh has developed a picture-taking robot designed to look for signs of life on Mars. Pugh is fine-tuning the robot’s onboard panoramic cameras and teaching it to point and shoot at features on the planet’s surface. “I have been looking in particular at how the robotic rover can point its camera at specific targets, such as rocks, without human intervention,” he says. The research’s long-term goal is to increase scientific data for all future planetary missions. “NASA has already found evidence of ice on Mars, but I don’t think rover will find evidence of anything more than water because if it was there I think we would have found it by now,” Pugh says. The researcher is developing software that will enable the robot to discover locations of interest more quickly and to choose targets for pictures by itself, without communicating with scientists on Earth.
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Russian prime minister Vladimir Putin announced that the government would spend more than a tenth of its budget on science and innovation this year. “We have assigned about 1.1 trillion rubles ($36.8 billion), or more than 10 percent of the federal budget, for fundamental and applied sciences, higher education, high-tech medicine, and specialized federal programs,” Putin said. The government increased its science and innovation spending by more than 300 billion rubles in 2009 compared to 2008. The new effort to promote science and innovation includes requiring competition for scientific projects and giving preference to innovative options when the state buys products and services. Separately, Putin announced that Russia has allocated 1.1 billion rubles ($37 million) to develop supercomputer technologies in Russia. Last year Russia launched its fastest supercomputer, Lomonosov, at the Moscow State University’s Research Computing Center. Lomonosov has a peak speed of 420 teraflops and is ranked as the 12th fastest computer in the world.

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The European Union 3Plast research consortium plans to develop sensors that can be printed onto plastic film and attached to everyday objects. The sensors are being designed to respond to changes in temperature and pressure, which would enable them to detect the movement of a finger. “The sensor is combined with an organic transistor, which strengthens the sensor signal,” says project leader Gerhard Domann. Researchers have already printed sensors onto film, and are now optimizing transistors that can amplify changes in temperature and pressure. “By providing everyday objects with information about their environment–for example, whether a person is approaching–by means of pressure and temperature sensors, we can create and market new devices that can be controlled just by pointing a finger,” Domann says. It will likely take several years to print sensors on large surfaces, he says.
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The Blue Ribbon Task Force on Sustainable Digital Preservation and Access recently released a report addressing the problem of ensuring that digital information will be accessible in the future. The report provides principles and actions to facilitate long-term economic sustainability and context-specific recommendations geared toward four specific scenarios–scholarly discourse, research data, commercially-owned cultural content (such as digital media), and collectively produced Web content such as personal Websites and blogs. “Valuable digital information spans the spectrum from official e-documents to some YouTube videos,” says Task Force co-chair Fran Berman. The report also cites four distinct prioritized courses of action–organizational action, technical action, public policy action, and education and public outreach action. The report concludes that preservation strategies need to develop at their own pace. “A key element of a robust sustainability strategy is to anticipate the effect of these changes and take steps to minimize the risk that long-term preservation goals will be impacted by short-term disruptions,” says Task Force co-chair Brian Lavoie.
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