424 search results - page 27 / 85 » On performance of topical opinion retrieval |
SIGIR
2012
ACM
11 years 10 months ago
2012
ACM
Assessors frequently disagree on the topical relevance of documents. How much of this disagreement is due to ambiguity in assessment instructions? We have two assessors assess TRE...
ECIR
2009
Springer
13 years 5 months ago
2009
Springer
Query expansion is an effective technique in improving the retrieval performance for ad-hoc retrieval. However, query expansion can also fail, leading to a degradation of the retri...
SIGIR
2009
ACM
14 years 2 months ago
2009
ACM
We investigate using topic prediction data, as a summary of document content, to compute measures of search result quality. Unlike existing quality measures such as query clarity ...
ICMCS
2007
IEEE
14 years 1 months ago
2007
IEEE
In this paper we examine a novel approach to the difficult problem of querying video databases using visual topics with few examples. Typically with visual topics, the examples a...
CIKM
2008
Springer
13 years 9 months ago
2008
Springer
Topic modeling has been a key problem for document analysis. One of the canonical approaches for topic modeling is Probabilistic Latent Semantic Indexing, which maximizes the join...