2006 Oct 24
Lukasz Golab has just been awarded the Alumni Gold Medal as the top PhD student at the university for his thesis titled, “Sliding Window Query Processing over Data Streams. Supervised by Tamer Özsu, Golab’s thesis addressed the data management needs of an increasingly important class of applications that require on-line processing of "streamed" data, such as stock market feeds, sensor network output, and Internet traffic data. In these cases, it is usually not possible to store and then process the data, as in traditional applications, and one may need to both run continuous queries to monitor the environment that is producing the data and ad hoc queries for instantaneous inquiries. Golab’s work dealt with query processing issues in data streams over which either the system or the application has defined a window (e.g., “execute a query over the data that has arrived in the last 30 minutes”). He identified semantics exhibited by windowed streams and developed techniques to exploit these semantics in query processing. Many papers have now been published based on this highly innovative research.
According to his supervisor, Tamer Özsu, “Lukasz was an excellent graduate student. He can conceptualize problems very well, can figure out how to attack them, and is not afraid to dig deep, even when he encroaches areas with which he is not fully familiar. I am very happy that he won the award, he is certainly deserving.” Golab is now a researcher at AT&T Labs Inc. - Research in Florham Park, New Jersey.

David R. Cheriton School of Computer Science
University of Waterloo
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