507 search results - page 24 / 102 » Portfolio theory of information retrieval |
111
Voted
SIGIR
2010
ACM
14 years 9 months ago
2010
ACM
Microblog services let users broadcast brief textual messages to people who "follow" their activity. Often these posts contain terms called hashtags, markers of a post&#...
WWW
2008
ACM
15 years 10 months ago
2008
ACM
It is crucial for a web crawler to distinguish between ephemeral and persistent content. Ephemeral content (e.g., quote of the day) is usually not worth crawling, because by the t...
76
Voted
CIKM
2008
Springer
14 years 11 months ago
2008
Springer
We introduce the Ranked Feature Fusion framework for information retrieval system design. Typical information retrieval formalisms such as the vector space model, the bestmatch mo...
108
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SIGIR
2002
ACM
14 years 9 months ago
2002
ACM
tion Abstract ChengXiang Zhai (Advisor: John Lafferty) Language Technologies Institute School of Computer Science Carnegie Mellon University With the dramatic increase in online in...
88
Voted
MM
2004
ACM
15 years 3 months ago
2004
ACM
Combining retrieval results from multiple modalities plays a crucial role for video retrieval systems, especially for automatic video retrieval systems without any user feedback a...