Sciweavers

7607 search results - page 1211 / 1522
» Querying data provenance
Sort
View
DBPL
2007
Springer
103views Database» more  DBPL 2007»
15 years 10 months ago
Datalog Programs over Infinite Databases, Revisited
Traditionally, infinite databases were studied as a data model for queries that may contain function symbols (since functions may be expressed as infinite relations). Recently, th...
Sara Cohen, Joseph Gil, Evelina Zarivach
SIGIR
2010
ACM
15 years 10 months ago
How good is a span of terms?: exploiting proximity to improve web retrieval
Ranking search results is a fundamental problem in information retrieval. In this paper we explore whether the use of proximity and phrase information can improve web retrieval ac...
Krysta Marie Svore, Pallika H. Kanani, Nazan Khan
DASFAA
2009
IEEE
108views Database» more  DASFAA 2009»
15 years 10 months ago
An Effective and Efficient Method for Handling Transmission Failures in Sensor Networks
Abstract. The suppression scheme is a solution for limited energy constraints in sensor networks. Temporal suppression, spatial suppression and spatio-temporal suppression are prop...
Heejung Yang, Chin-Wan Chung
BROADNETS
2004
IEEE
15 years 10 months ago
Structures for In-Network Moving Object Tracking in Wireless Sensor Networks
One important application of wireless sensor networks is tracking moving objects. The recent progress has made it possible for tiny sensors to have more computing power and storag...
Chih-Yu Lin, Yu-Chee Tseng
APWEB
2006
Springer
15 years 10 months ago
A Statistical Study of Today's Gnutella
Abstract. As a developing P2P system, Gnutella has upgraded its protocol to 0.6, which significantly changed the characteristics of its hosts. However, few previous work has given ...
Shicong Meng, Cong Shi, Dingyi Han, Xing Zhu, Yong...
« Prev « First page 1211 / 1522 Last » Next »