SIGIR
2008
ACM
13 years 4 months ago
2008
ACM
The results of the 2006 ECML/PKDD Discovery Challenge suggest that semi-supervised learning methods work well for spam filtering when the source of available labeled examples diff...
SIGIR
2008
ACM
13 years 4 months ago
2008
ACM
Pseudo-relevance feedback assumes that most frequent terms in the pseudo-feedback documents are useful for the retrieval. In this study, we re-examine this assumption and show tha...
SIGIR
2008
ACM
13 years 4 months ago
2008
ACM
We combine techniques of XML Mining and Text Mining for the benefit of Information Retrieval. By manipulating the word sequence according to the XML structure of the marked-up tex...
SIGIR
2008
ACM
13 years 4 months ago
2008
ACM
We investigate to what extent people making relevance judgements for a reusable IR test collection are exchangeable. We consider three classes of judge: "gold standard" ...
SIGIR
2008
ACM
13 years 4 months ago
2008
ACM
Pseudo-feedback-based automatic query expansion yields effective retrieval performance on average, but results in performance inferior to that of using the original query for many...
SIGIR
2008
ACM
13 years 4 months ago
2008
ACM
The goal of system evaluation in information retrieval has always been to determine which of a set of systems is superior on a given collection. The tool used to determine system ...
SIGIR
2008
ACM
13 years 4 months ago
2008
ACM
Search engine click logs provide an invaluable source of relevance information but this information is biased because we ignore which documents from the result list the users have...
SIGIR
2008
ACM
13 years 4 months ago
2008
ACM
Collaborative tagging used in online social content systems is naturally characterized by many synonyms, causing low precision retrieval. We propose a mechanism based on user pref...
SIGIR
2008
ACM
13 years 4 months ago
2008
ACM
We analyse query length, and fit power-law and Poisson distributions to four different query sets. We provide a practical model for query length, based on the truncation of a Pois...
SIGIR
2008
ACM
13 years 4 months ago
2008
ACM
