Sensor-Aided Mobile Information Management and Retrieval

Edward Y. Chang, Google Research, China


The number of “smart” mobile devices such as wireless phones and tablet computers has been rapidly growing.  These mobile devices are equipped with a variety of sensors such as camera, gyroscope, accelerometer, compass, NFC, WiFi, GPS, etc.  These sensors can be used to capture images and voice, detect motion patterns, and predict locations, to name just a few.  This keynote depicts techniques in configuration, calibration, computation, and fusion for improving sensor performance and conserving power consumption [1, 2].  Novel information management and retrieval applications that can benefit a great deal from enhanced sensor technologies are also presented.


Edward Chang heads Google Research in China since March 2006. He joined the department of Electrical & Computer Engineering at University of California, Santa Barbara, in 1999 after receiving his PhD from Stanford University. Ed received his tenure in 2003, and was promoted to full professor of Electrical Engineering in 2006. His recent research activities are in the areas of distributed data mining and their applications to rich-media data management and social-network collaborative filtering. His research group (which consists of members from Google, UC, MIT, Tsinghua, PKU, and Zheda) recently parallelized SVMs (NIPS 07), PLSA (KDD 08), Association Mining (ACM RS 08), Spectral Clustering (PAMI 10), and LDA (WWW 09) (see MMDS / CIVR / EMMDS / MM / AAIM / ADMA / CIKM keynotes and tutorials for details) to run on parallel machines for mining large-scale datasets. His team at Google have developed and launched Google Confucius (a Q&A system, VLDB 10) at 68 countries including ChinaRussia, Thailand, Vietnam, Indonesia, 17 Arabic, and 40 Africa nations. Ed also directs Google Mobile 2014 research focused program, which funds novel mobile research projects world-wide. Ed has served on ACM (SIGMOD, KDD, MM, CIKM), VLDB, IEEE, WWW, and SIAM conference program committees, and co-chaired several conferences including MMM, ACM MM, ICDE, and WWW. He is a recipient of the NSF Career Award.