1587 search results - page 177 / 318 » UFRGS@CLEF2009: Retrieval by Numbers |
145
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ICPR
2006
IEEE
16 years 7 months ago
2006
IEEE
In many clustering applications, the user has some vague notion of the number and membership of the desired clusters. However, it is difficult for the user to provide such knowled...
181
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KDD
2006
ACM
16 years 6 months ago
2006
ACM
Recent research has identified significant vulnerabilities in recommender systems. Shilling attacks, in which attackers introduce biased ratings in order to influence future recom...
176
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KDD
2002
ACM
16 years 6 months ago
2002
ACM
Rule mining is an important data mining task that has been applied to numerous real-world applications. Often a rule mining system generates a large number of rules and only a sma...
242
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VLDB
2008
ACM
16 years 6 months ago
2008
ACM
This paper studies aggregate search in transaction time databases. Specifically, each object in such a database can be modeled as a horizontal segment, whose y-projection is its s...
177
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EDBT
2004
ACM
16 years 6 months ago
2004
ACM
Peer-to-peer (P2P) systems are gaining increasing popularity as a scalable means to share data among a large number of autonomous nodes. In this paper, we consider the case in whic...