28 search results - page 6 / 6 » Reference Directed Indexing: Redeeming Relevance for Subject... |
IIR
2010
13 years 6 months ago
2010
We study the evaluation of opinion retrieval systems. Opinion retrieval is a relatively new research area, nevertheless classical evaluation measures, those adopted for ad hoc ret...
IUI
2006
ACM
13 years 11 months ago
2006
ACM
Question answering (QA) systems take users’ natural language questions and retrieve relevant answers from large repositories of free texts. Despite recent progress in QA researc...
SIGIR
2008
ACM
13 years 5 months ago
2008
ACM
We study in this paper the problem of bridging the semantic gap between low-level image features and high-level semantic concepts, which is the key hindrance in content-based imag...