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SIGIR
2003
ACM
15 years 12 months ago
Investigating the relationship between language model perplexity and IR precision-recall measures
An empirical study has been conducted investigating the relationship between the performance of a generative language model in terms of perplexity and the corresponding informatio...
Leif Azzopardi, Mark Girolami, Keith van Rijsberge...
SIGIR
2003
ACM
15 years 12 months ago
Single n-gram stemming
Stemming can improve retrieval accuracy, but stemmers are language-specific. Character n-gram tokenization achieves many of the benefits of stemming in a language independent way,...
James Mayfield, Paul McNamee
SIGIR
2003
ACM
15 years 12 months ago
Fractal summarization: summarization based on fractal theory
In this paper, we introduce the fractal summarization model based on the fractal theory. In fractal summarization, the important information is captured from the source text by ex...
Christopher C. Yang, Fu Lee Wang
DL
1999
Springer
130views Digital Library» more  DL 1999»
15 years 11 months ago
XML-based Information Mediation for Digital Libraries
We demonstrate a prototype distributed architecture for a digital library, using technology being developed under the MIX Project at the San Diego Supercomputer Center (SDSC) and ...
Chaitanya K. Baru, Vincent Chu, Amarnath Gupta, Be...
SIGIR
2010
ACM
15 years 10 months ago
Metrics for assessing sets of subtopics
To evaluate the diversity of search results, test collections have been developed that identify multiple intents for each query. Intents are the different meanings or facets that...
Filip Radlinski, Martin Szummer, Nick Craswell