Seth Teller, a professor of computer science and engineering at MIT who was well known for his efforts to advance human-robot interactions, died yesterday. He was 50, and he had been a member of the MIT faculty since 1994. President L. Rafael Reif announced the news in an email to the MIT community. "I knew Seth as a person of great human warmth and intellectual intensity," Reif wrote in his letter. "He was a brilliant engineer and a gifted advisor with a passion for new challenges. His loss is difficult to grasp."

Michael Sipser, the Barton L. Weller Professor of Mathematics and head of the Department of Mathematics since 2004, has been named dean of the School of Science. Sipser has served as the school's interim dean since December, when he was chosen to replace Marc Kastner, the Donner Professor of Physics; in November, President Barack Obama announced his intention to nominate Kastner to head the Department of Energy's Office of Science. "In 10 years as head of MIT's Department of Mathematics, Mike Sipser sustained its extraordinary stature while building a warm sense of community," MIT President L. Rafael Reif says. "His integrity, fairness, and patience will serve him very well in the role of dean. And as the School of Science faces difficult trends in federal funding, I believe Mike's gift for explaining complex scientific concepts will be a tremendous asset in Washington."

The annual MIT IDEAS Global Challenge awards ceremony awarded $79,500 on Monday night to 13 student-led teams to further develop inventions and ideas intended to solve pressing environmental and health challenges in developing countries. "Today marks an important opportunity for emerging entrepreneurs to take a big leap forward in their journey to improve the quality of life in communities around the world," Keely Swan, the Public Service Center's IDEAS Global Challenge program administrator, said in her welcoming remarks. Launched and run by MIT students, the winning ventures took home prizes of $10,000, $7,500, $5,000, and $1,500, to further support prototyping and field-testing, among other things. CleanData-CleanWater, a $10,000 winner last night, plans to use its earnings to manufacture 1,000 of its sensors, which gather previously unavailable data on water filter usage in developing countries. The sensors fit on a filter's tap and track how long the tap stays up or down, measuring the frequency and duration of use. The company plans to integrate the sensors into a new line of ceramic pot water filters being installed across Ghana by the company Pure Home Water, a previous IDEAS winner.

Robert Wilensky, professor emeritus of computer science at the University of California, Berkeley, and one of the campus's first faculty members in artificial intelligence when the field was just taking off, has died at age 61. He died at the Alta Bates Summit Medical Center in Oakland on Friday, March 15, of a bacterial infection. Wilensky's career at UC Berkeley spanned nearly 30 years, beginning in 1978 when he joined the faculty in computer science. He later was appointed a professor at the School of Information and Management Sciences (now the School of Information, or I School), which he helped form. His many research interests included the role of memory processes in natural language processing, language analysis and production and artificial intelligence in programming languages.

Computer scientist and AI pioneer EDWARD A. FEIGENBAUM has partnered with Stanford Libraries to make his personal papers available online, including more than 16,500 notes, scientific development documents, correspondence, Artificial Intelligence Lab memos, audio tapes and videos. Starting with the dawn of artificial intelligence research and computer science in 1956, the Edward A. Feigenbaum Papers allows users to explore a pivotal time in AI history by accessing documents from Feigenbaum's distinguished career as a scientist, book author, department chairman, government adviser and chief scientist of the U.S. Air Force. Feigenbaum joined the Stanford computer science faculty in 1965 as one of its founding members. That same year, he and Professor JOSHUA LEDERBERG, who had won a Nobel Prize in medicine and physiology in 1958, before coming to Stanford, started the DENDRAL project, the world's first expert system. DENDRAL's groundbreaking work moved artificial intelligence out of the laboratory and into the structure of countless software applications.

McCarthy created the term "artificial intelligence" and was a towering figure in computer science at Stanford most of his professional life. In his career, he developed the programming language LISP, played computer chess via telegraph with opponents in Russia and invented computer time-sharing. In 1966, John McCarthy hosted a series of four simultaneous computer chess matches carried out via telegraph against rivals in Russia. John McCarthy, a professor emeritus of computer science at Stanford, the man who coined the term "artificial intelligence" and subsequently went on to define the field for more than five decades, died suddenly at his home in Stanford in the early morning Monday, Oct. 24. McCarthy was a giant in the field of computer science and a seminal figure in the field of artificial intelligence.

Guy Bresler joined the MIT faculty in September 2015 as the Bonnie and Marty (1964) Tenenbaum Career Development Professor in the Department of Electrical Engineering and Computer Science (EECS). He also joined the Institute for Data, Systems, and Society (IDSS) -- which addresses complex societal challenges by advancing education and research at the intersection of statistics, data science, information and decision systems, and social sciences -- as a member of the Laboratory for Information and Decision Systems (LIDS). Bresler's research investigates the relationship between combinatorial structure and computational tractability of high-dimensional inference in graphical models and other statistical models. His current work focuses on learning graphical models from data, and explores how both data and computation requirements can be reduced if the model is subsequently used for a specific inference task. Bresler is also interested in applications of these methods, especially to recommendation systems and computational biology.

Edward S. Boyden, a professor of media arts and sciences, biological engineering, and brain and cognitive sciences at MIT, has won the BBVA Foundation Frontiers of Knowledge Award in Biomedicine for his role in the development of optogenetics, a technique for controlling brain activity with light. Gero Miesenböck of the Oxford University and Karl Deisseroth of Stanford University were also honored with the prize for their role in developing and refining the technique. The BBVA Foundation Frontiers of Knowledge Awards are given annually for "outstanding contributions and radical advances in a broad range of scientific, technological, and artistic areas." The 400,000-Euro prize in the category of biomedicine will be shared among the three neuroscientists. "If we imagine the brain as a computer, optogenetics is a keyboard that allows us to send extremely precise commands," says Boyden, a faculty member at the MIT Media Lab with a joint appointment at MIT's McGovern Institute for Brain Research.

Tired of dating people who stare at you blankly when you talk about your affection for Asimo? Online dating site Robot Passions says it can help you find a partner who shares your love of robots--or at least thinks Gundam is pretty cool. Robot lovers longing for a date with metal sexpot Roxxxy might be disappointed to learn that the site is currently restricted to humans. It does, however, note that it hopes to include robots among its members "once their AI is sufficiently advanced." Wait, what does one get a Roomba for Valentine's Day? Robot Passions is part of Passions Network's extensive roster of free online dating sites, which include such other geek offerings as Comic Book Passions, Zombie Passions, Trek Passions, and Ninja Passions.

At a gala charity event Saturday night featuring "Avatar" director James Cameron, Google founders Sergey Brin and Larry Page, and a who's who of tech industry luminaries, the X Prize Foundation laid out its vision for the next five years. Already in 2004, the foundation has paid out $10 million in prize money for the winner of the Ansari X Prize, which in 2004 went to the first non-governmental team to launch a vehicle into space twice in two weeks. The prize winners were Burt Rutan and the Paul Allen-backed team that built SpaceShipOne. The foundation offers both X Prizes--$10 million or more for large-scale competitions focused on global problems that may take between three and eight years to solve--and X Challenges, awards on the order of $1 million for technology challenges and breakthroughs that have a time frame of one to two years. Currently, the foundation is offering up millions of dollars in prize money for the first teams to sequence 100 genomes in 10 days (the $10 million Archon X Prize); to send a robot to the moon, travel 500 meters and transmit video, data and images back to Earth (the $30 million Google Lunar X Prize); and to produce green, production-ready cars capable of exceeding 100 miles per gallon or its energy equivalent (the $10 million Progressive Automotive X Prize).