Sciweavers

588 search results - page 28 / 118
» Positive higher-order queries
Sort
View
119
Voted
SSD
2007
Springer
176views Database» more  SSD 2007»
15 years 8 months ago
Distributed, Concurrent Range Monitoring of Spatial-Network Constrained Mobile Objects
The ability to continuously monitor the positions of mobile objects is important in many applications. While most past work has been set in Euclidean spaces, the mobile objects rel...
Hua Lu, Zhiyong Huang, Christian S. Jensen, Linhao...
CIKM
2009
Springer
15 years 6 months ago
Scalable continuous range monitoring of moving objects in symbolic indoor space
Indoor spaces accommodate large populations of individuals. The continuous range monitoring of such objects can be used as a foundation for a wide variety of applications, e.g., s...
Bin Yang 0002, Hua Lu, Christian S. Jensen
SIGMOD
2007
ACM
146views Database» more  SIGMOD 2007»
16 years 2 months ago
Distributed query evaluation with performance guarantees
Partial evaluation has recently proven an effective technique for evaluating Boolean XPath queries over a fragmented tree that is distributed over a number of sites. What left ope...
Gao Cong, Wenfei Fan, Anastasios Kementsietsidis
WSDM
2010
ACM
194views Data Mining» more  WSDM 2010»
15 years 11 months ago
Ranking with Query-Dependent Loss for Web Search
Queries describe the users' search intent and therefore they play an essential role in the context of ranking for information retrieval and Web search. However, most of exist...
Jiang Bian, Tie-Yan Liu, Tao Qin, Hongyuan Zha
135
Voted
WWW
2011
ACM
14 years 8 months ago
Web scale NLP: a case study on url word breaking
This paper uses the URL word breaking task as an example to elaborate what we identify as crucialin designingstatistical natural language processing (NLP) algorithmsfor Web scale ...
Kuansan Wang, Christopher Thrasher, Bo-June Paul H...