Some simple effective approximations to the 2-Poisson model for probabilistic weighted retrieval
SIGIR '94 Proceedings of the 17th annual international ACM SIGIR conference on Research and development in information retrieval
Improved algorithms for topic distillation in a hyperlinked environment
Proceedings of the 21st annual international ACM SIGIR conference on Research and development in information retrieval
The anatomy of a large-scale hypertextual Web search engine
WWW7 Proceedings of the seventh international conference on World Wide Web 7
Authoritative sources in a hyperlinked environment
Journal of the ACM (JACM)
Effective site finding using link anchor information
Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval
The Importance of Prior Probabilities for Entry Page Search
SIGIR '02 Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval
SIGIR '02 Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval
Probabilistic models of information retrieval based on measuring the divergence from randomness
ACM Transactions on Information Systems (TOIS)
Query type classification for web document retrieval
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
A study of parameter tuning for term frequency normalization
CIKM '03 Proceedings of the twelfth international conference on Information and knowledge management
Improving the evaluation of web search systems
ECIR'03 Proceedings of the 25th European conference on IR research
When are links useful? experiments in text classification
ECIR'03 Proceedings of the 25th European conference on IR research
Improving the evaluation of web search systems
ECIR'03 Proceedings of the 25th European conference on IR research
A decision mechanism for the selective combination of evidence in topic distillation
Information Retrieval
Combining evidence for relevance criteria: a framework and experiments in web retrieval
ECIR'07 Proceedings of the 29th European conference on IR research
The static absorbing model for the web
Journal of Web Engineering
Learning to select a ranking function
ECIR'2010 Proceedings of the 32nd European conference on Advances in Information Retrieval
Frequentist and bayesian approach to information retrieval
ECIR'06 Proceedings of the 28th European conference on Advances in Information Retrieval
Efficient and effective retrieval using selective pruning
Proceedings of the sixth ACM international conference on Web search and data mining
The whens and hows of learning to rank for web search
Information Retrieval
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In this paper, we introduce an information theoretic method for estimating the usefulness of the hyperlink structure induced from the set of retrieved documents. We evaluate the effectiveness of this method in the context of an optimal Bayesian decision mechanism, which selects the most appropriate retrieval approaches on a per-query basis for two TREC tasks. The estimation of the hyperlink structure's usefulness is stable when we use different weighting schemes, or when we employ sampling of documents to reduce the computational overhead. Next, we evaluate the effectiveness of the hyperlink structure's usefulness in a realistic setting, by setting the thresholds of a decision mechanism automatically. Our results show that improvements over the baselines are obtained.