2457 search results - page 234 / 492 » Evaluating Geographic Information Retrieval |
187
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MMS
2008
15 years 6 months ago
2008
We address the challenge of semantic gap reduction for image retrieval through an improved SVM-based active relevance feedback framework, together with a hybrid visual and concept...
193
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CIVR
2007
Springer
16 years 26 days ago
2007
Springer
Bag-of-features (BoF) deriving from local keypoints has recently appeared promising for object and scene classification. Whether BoF can naturally survive the challenges such as ...
170
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SIGIR
2008
ACM
15 years 6 months ago
2008
ACM
Relevance feedback, which traditionally uses the terms in the relevant documents to enrich the user's initial query, is an effective method for improving retrieval performanc...
201
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CIVR
2008
Springer
15 years 8 months ago
2008
Springer
Recent content-based video retrieval systems combine output of concept detectors (also known as high-level features) with text obtained through automatic speech recognition. This ...
192
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CLEF
2007
Springer
16 years 26 days ago
2007
Springer
This paper presents the LIG contribution to the CLEF 2007 medical retrieval task (i.e. ImageCLEFmed). The main idea in this paper is to incorporate medical knowledge in the langua...