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» Efficient information retrieval using mobile agents
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SIGIR
2008
ACM
15 years 6 months ago
A simple and efficient sampling method for estimating AP and NDCG
We consider the problem of large scale retrieval evaluation. Recently two methods based on random sampling were proposed as a solution to the extensive effort required to judge te...
Emine Yilmaz, Evangelos Kanoulas, Javed A. Aslam
CIVR
2007
Springer
247views Image Analysis» more  CIVR 2007»
16 years 1 months ago
Near-duplicate keyframe retrieval with visual keywords and semantic context
Near-duplicate keyframes (NDK) play a unique role in large-scale video search, news topic detection and tracking. In this paper, we propose a novel NDK retrieval approach by explo...
Xiao Wu, Wanlei Zhao, Chong-Wah Ngo
CIKM
2006
Springer
15 years 10 months ago
A document-centric approach to static index pruning in text retrieval systems
We present a static index pruning method, to be used in ad-hoc document retrieval tasks, that follows a documentcentric approach to decide whether a posting for a given term shoul...
Stefan Büttcher, Charles L. A. Clarke
TPDS
2010
99views more  TPDS 2010»
15 years 5 months ago
Snoogle: A Search Engine for Pervasive Environments
—Embedding small devices into everyday objects like toasters and coffee mugs creates a wireless network of objects. These embedded devices can contain a description of the underl...
Haodong Wang, Chiu Chiang Tan, Qun Li
221
Voted
IEEECSA
2009
15 years 4 months ago
A Fine-Grained Localization Scheme Using a Mobile Beacon Node for Wireless Sensor Networks
In this paper, we present a fine-grained localization algorithm for wireless sensor networks using a mobile beacon node. The algorithm is based on distance measurement using RSSI. ...
Kezhong Liu, Ji Xiong, Yongqiang Cui, Dong Han