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CIKM
2011
Springer
14 years 6 months ago
Factorization-based lossless compression of inverted indices
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...
George Beskales, Marcus Fontoura, Maxim Gurevich, ...
ICONFERENCE
2012
14 years 1 months ago
Not just a wink and smile: an analysis of user-defined success in online dating
This study examines the publically available stories of selfidentified successful couples that met using the online dating services Match.com, eHarmony, or OkCupid. We enumerate f...
Christopher M. Mascaro, Rachel M. Magee, Sean P. G...
PODS
2012
ACM
276views Database» more  PODS 2012»
13 years 8 months ago
Randomized algorithms for tracking distributed count, frequencies, and ranks
We show that randomization can lead to significant improvements for a few fundamental problems in distributed tracking. Our basis is the count-tracking problem, where there are k...
Zengfeng Huang, Ke Yi, Qin Zhang
INFOCOM
2012
IEEE
13 years 8 months ago
Resource allocation for heterogeneous multiuser OFDM-based cognitive radio networks with imperfect spectrum sensing
—In this paper we study the resource allocation in OFDM-based cognitive radio (CR) networks, under the consideration of many practical limitations such as imperfect spectrum sens...
Shaowei Wang, Zhi-Hua Zhou, Mengyao Ge, Chonggang ...
INFOCOM
2012
IEEE
13 years 8 months ago
A robust boundary detection algorithm based on connectivity only for 3D wireless sensor networks
—In this work we develop a distributed boundary detection algorithm, dubbed Coconut, for 3D wireless sensor networks. It first constructs a tetrahedral structure to delineate th...
Hongyu Zhou, Hongyi Wu, Miao Jin