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» Thesaurus Based Term Ranking for Keyword Extraction
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SIGIR
2006
ACM
14 years 2 months ago
Mining dependency relations for query expansion in passage retrieval
Classical query expansion techniques such as the local context analysis (LCA) make use of term co-occurrence statistics to incorporate additional contextual terms for enhancing pa...
Renxu Sun, Chai-Huat Ong, Tat-Seng Chua
SIGMOD
2010
ACM
132views Database» more  SIGMOD 2010»
13 years 3 months ago
Durable top-k search in document archives
We propose and study a new ranking problem in versioned databases. Consider a database of versioned objects which have different valid instances along a history (e.g., documents i...
Leong Hou U, Nikos Mamoulis, Klaus Berberich, Srik...
SIGIR
2008
ACM
13 years 9 months ago
Exploiting subjectivity analysis in blogs to improve political leaning categorization
In this paper, we address a relatively new and interesting text categorization problem: classify a political blog as either liberal or conservative, based on its political leaning...
Maojin Jiang, Shlomo Argamon
SAC
2008
ACM
13 years 8 months ago
Hermes: a semantic web-based news decision support system
The emergence of the Web has made more and more news items available, however only a small subset of these news items are relevant in a decision making process. Therefore decision...
Jethro Borsje, Leonard Levering, Flavius Frasincar
MIR
2004
ACM
176views Multimedia» more  MIR 2004»
14 years 2 months ago
Analysing the performance of visual, concept and text features in content-based video retrieval
This paper describes revised content-based search experiments in the context of TRECVID 2003 benchmark. Experiments focus on measuring content-based video retrieval performance wi...
Mika Rautiainen, Timo Ojala, Tapio Seppänen