This paper is to investigate rank aggregation based on multiple user-centered measures in the context of the web search. We introduce a set of techniques to combine ranking lists in order of user interests termed as a user profile. Moreover, based on the click-history data, a kind of taxonomic hierarchy automatically models the user profile which can include a variety of attributes of user inte...

Existing robot guides are able to offer a tour of a building, such as a museum, bank, science center, to a single person or to a group of participants. Usually the tours are predefined and there is no support for dynamic interactions between multiple robots. This paper focuses on distributed collaboration between several robot guides providing a building tour to groups of participants. Semantic...

In this paper we propose a methodology for organising the users of an information providing system into groups with common interests (communities). The communities are built using unsupervised learning techniques on data collected from the users (user models). We examine a system that filters news on the Internet, according to the interests of the registered users. Each user model contains the ...

of overlapping interests. Put them in a good physical plant with lots of shared space, and let them go to it. When it comes to the size of individual research groups, there’s a value-formoney issue too — we are mostly spending the taxpayers’ coin, after all. I have always had the impression that individual laboratory groups larger than about a dozen full-time workers produce less science per do...

My research interests include Riemann-Hilbert approach to nonlinear integrable systems and WKB approximations with numerical studies of turning points and Stokes lines. These two areas have much in common, including numerical and topological analysis of level curves. My dissertation is on the second transition (second break) in the asymptotic solutions of the semiclassical focusing Nonlinear Sc...

My research interests are in machine perception, particularly the representation, analysis and interpretation of visual and auditory signals. Research in vision and audition is becoming more signiicant in an increasingly computerized world. Artiicial vision and hearing are the technologies that will enable computers to interact more naturally with humans. My interest in machine perception arise...

My primary areas of research are complexity theory and databases. I am also interested in game theory, artificial intelligence, and logic. Everyone has data they want to store. Just as important, you have to be able to get at your data when you need it. This doesn’t just mean having access to the data, but having access to it in a timely manner. Knowing how long it will take to retrieve data fr...

I am interested in the areas of Data Mining, Data Warehousing, and Database Systems applied to the exploration and analysis of large moving object data sets. Recent years have witnessed and enormous increase in moving object data from RFID records in supply chain operations, toll and road sensor readings from vehicles on road networks, or even cell phone usage from different geographic regions....