142
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ECIR
2011
Springer
14 years 7 months ago
2011
Springer
Aggregate ranking tasks are those where documents are not the final ranking outcome, but instead an intermediary component. For instance, in expert search, a ranking of candidate ...
133
click to vote
ECIR
2011
Springer
14 years 7 months ago
2011
Springer
Abstract. Training data as well as supplementary data such as usagebased click behavior may abound in one search market (i.e., a particular region, domain, or language) and be much...
145
click to vote
ECIR
2011
Springer
14 years 7 months ago
2011
Springer
Expert finding addresses the problem of retrieving a ranked list of people who are knowledgeable on a given topic. Several models have been proposed to solve this task, but so far...
153
click to vote
ECIR
2011
Springer
14 years 7 months ago
2011
Springer
The User-over-Ranking hypothesis states that rather the user herself than a web search engine’s ranking algorithm can help to improve retrieval performance. The means are longer ...
138
click to vote
ECIR
2011
Springer
14 years 7 months ago
2011
Springer
We compare two methods for retrieval from multimodal collections. The first is a score-based fusion of results, retrieved visually and textually. The second is a two-stage method ...
139
click to vote
ECIR
2011
Springer
14 years 7 months ago
2011
Springer
Query-by-example video retrieval is receiving an increasing attention in recent years. One of the state-of-art approaches is the Bag-of-visual Words (BoW) based technique, where im...
171
click to vote
ECIR
2011
Springer
14 years 7 months ago
2011
Springer
In large web search engines the performance of Information Retrieval systems is a key issue. Block-based compression methods are often used to improve the search performance, but c...
138
click to vote
ECIR
2011
Springer
14 years 7 months ago
2011
Springer
Feature selection plays a vital role in text categorisation. A range of different methods have been developed, each having unique properties and selecting different features. We ...
180
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ECIR
2011
Springer
14 years 7 months ago
2011
Springer
Abstract. Content-based image retrieval (CBIR) with global features is notoriously noisy, especially for image queries with low percentages of relevant images in a collection. More...
129
click to vote
ECIR
2011
Springer
14 years 7 months ago
2011
Springer
Adaptation techniques based on importance weighting were shown effective for RankSVM and RankNet, viz., each training instance is assigned a target weight denoting its importance ...