Sciweavers

3652 search results - page 225 / 731
» A study of query length
Sort
View
112
Voted
WEBI
2009
Springer
15 years 8 months ago
Estimating Ad Clickthrough Rate through Query Intent Analysis
Clickthrough rate and cost-per-click are known to be among the factors that impact the rank of an ad shown on a search result page. Hence, search engines can benefit from estimat...
Azin Ashkan, Charles L. A. Clarke, Eugene Agichtei...
VLDB
1998
ACM
105views Database» more  VLDB 1998»
15 years 7 months ago
Computing Iceberg Queries Efficiently
Many applications compute aggregate functions over an attribute (or set of attributes) to find aggregate values above some specified threshold. We call such queries iceberg querie...
Min Fang, Narayanan Shivakumar, Hector Garcia-Moli...
SIGMOD
1997
ACM
134views Database» more  SIGMOD 1997»
15 years 7 months ago
Similarity-Based Queries for Time Series Data
We study similarity queries for time series data where similarity is defined in terms of a set of linear transformations on the Fourier series representation of a sequence. We ha...
Davood Rafiei, Alberto O. Mendelzon
FAW
2009
Springer
118views Algorithms» more  FAW 2009»
15 years 7 months ago
Space-Query-Time Tradeoff for Computing the Visibility Polygon
Abstract. Computing the visibility polygon, VP, of a point in a polygonal scene, is a classical problem that has been studied extensively. In this paper, we consider the problem of...
Mostafa Nouri, Mohammad Ghodsi
ICLP
2007
Springer
15 years 7 months ago
OnEQL: An Ontology Efficient Query Language Engine for the Semantic Web
Abstract. In this paper we describe the OnEQL system, a query engine that implements optimization techniques and evaluation strategies to speed up the evaluation time of querying a...
Edna Ruckhaus, Maria-Esther Vidal, Eduardo Ruiz