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SIGIR
2005
ACM
14 years 3 months ago
2005
ACM
Existing retrieval models generally do not offer any guarantee for optimal retrieval performance. Indeed, it is even difficult, if not impossible, to predict a model’s empirica...
SIGIR
2005
ACM
14 years 3 months ago
2005
ACM
Informal communication (e-mail, bulletin boards) poses a difficult learning environment because traditional grammatical and lexical information are noisy. Other information is nec...
SIGIR
2005
ACM
14 years 3 months ago
2005
ACM
The effectiveness of information retrieval systems is measured by comparing performance on a common set of queries and documents. Significance tests are often used to evaluate the...
SIGIR
2005
ACM
14 years 3 months ago
2005
ACM
Measuring the information retrieval effectiveness of Web search engines can be expensive if human relevance judgments are required to evaluate search results. Using implicit user ...
SIGIR
2005
ACM
14 years 3 months ago
2005
ACM
We consider classification of email messages as to whether or not they contain certain “email acts”, such as a request or a commitment. We show that exploiting the sequential ...