Technical Reports (Computing Science)

2004

Digout, Christian

Technical report TR04-19. Despite the proposal of numerous tree-based structures for high-dimensional similarity searches, techniques based on a sequential scan, such as the VA-File, have been shown to be quite effective. In this thesis we present three new access structures which use sequential...

1992

Yuan, Li-Yan

Technical report TR92-15. In this paper we propose the minimal well-founded semantics for logic programs with negation based on the fixpoint of the double Gelfond-Lifschitz transformation which overcomes the existing problems associated with the stable, the well-founded, and the stable class...

2004

Antonie, Maria-Luiza, Zaiane, Osmar

Technical report TR04-07. Typical association rules consider only items enumerated in transactions. Such rules are referred to as positive association rules. Negative association rules also consider the same items, but in addition consider negated items (i.e. absent from transactions). Negative...

2013

Hindle, Abram, Wang, Jiemin, Nascimento, Mario A., Jiang, Feng

The open source development community consists of both paid and volunteer developers as well as new and experienced users. Previous work has applied social network analysis (SNA) to open source communities and has demonstrated value in expertise discovery and triaging. One problem with applying...

1998

Li, John

Technical report TR98-05. Amidst the dramatic developments of computer technology in the last decades, we have seen a growing interest in supporting multimedia data. Compared with traditional data, the most noticeable features of multimedia data are their spatiality (the spatial layout of...

1996

Li, John, Ozsu, M. Tamer, Szafron, Duane

Technical report TR96-12. Modeling moving objects has become a topic of increasing interest in the area of video databases. Two key aspects of such modeling are object spatial and temporal relationships. In this paper we introduce an innovative way to represent the trajectory of a single...

1996

Goralwalla, Iqbal, Ozsu, M. Tamer, Leontiev, Yuri, Szafron, Duane

Technical report TR96-03. Most of the work in modeling time in information systems has concentrated on issues such as support for historical information and providing query facilities to manipulate such information. In doing so, some simplistic view of the underling nature of time has been...

1996

Ozsu, M. Tamer, Li, John, Szafron, Duane

Technical report TR96-06. Video modeling has become a topic of increasing interest in the area of multimedia research. One of the key aspects in the video medium is spatial relationships. In this paper we propose a spatial representation, based on the temporal interval algebra, for specifying...

2009

Nikolaidis, Ioanis, Nascimento, Mario A., Malhotra, Baljeet

Technical report TR09-01. Finding the top-k values is an important type of aggregation query in wireless sensor networks. Previous proposals relied on a given underlying logical tree topology for data aggregation/forwarding, but did not pay due attention to the role of such topology. In this...

2009

Bowling, Michael, Zinkevich, Martin, Waugh, Kevin, Lanctot, Marc

Technical report TR09-15. Sequential decision-making with multiple agents and imperfect information is commonly modeled as an extensive game. One efficient method for computing Nash equilibria in large, zero-sum, imperfect information games is counterfactual regret minimization (CFR). In the...