579 search results - page 63 / 116 » An Ontology-Based Index to Retrieve Documents with Geographi... |
191
click to vote
CIKM
2010
Springer
15 years 4 months ago
2010
Springer
Low-dimensional topic models have been proven very useful for modeling a large corpus of documents that share a relatively small number of topics. Dimensionality reduction tools s...
163
click to vote
CIKM
2011
Springer
14 years 6 months ago
2011
Springer
Many large-scale Web applications that require ranked top-k retrieval are implemented using inverted indices. An inverted index represents a sparse term-document matrix, where non...
167
click to vote
WWW
2007
ACM
16 years 6 months ago
2007
ACM
Often scientists seek to search for articles on the Web related to a particular chemical. When a scientist searches for a chemical formula using a search engine today, she gets ar...
148
click to vote
ICAPR
2005
Springer
15 years 11 months ago
2005
Springer
The number of vertical search engines and portals has rapidly increased over the last years, making the importance of a topic-driven (focused) crawler evident. In this paper, we de...
181
click to vote
SIGIR
2008
ACM
15 years 4 months ago
2008
ACM
Results caching is an efficient technique for reducing the query processing load, hence it is commonly used in real search engines. This technique, however, bounds the maximum hit...