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» A study of query length
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SIGMOD
2010
ACM
210views Database» more  SIGMOD 2010»
13 years 8 months ago
Searching trajectories by locations: an efficiency study
Trajectory search has long been an attractive and challenging topic which blooms various interesting applications in spatial-temporal databases. In this work, we study a new probl...
Zaiben Chen, Heng Tao Shen, Xiaofang Zhou, Yu Zhen...
WWW
2007
ACM
14 years 8 months ago
Identifying ambiguous queries in web search
It is widely believed that some queries submitted to search engines are by nature ambiguous (e.g., java, apple). However, few studies have investigated the questions of "how ...
Ruihua Song, Zhenxiao Luo, Ji-Rong Wen, Yong Yu, H...
DAC
2004
ACM
14 years 8 months ago
Toward a systematic-variation aware timing methodology
Variability of circuit performance is becoming a very important issue for ultra-deep sub-micron technology. Gate length variation has the most direct impact on circuit performance...
Puneet Gupta, Fook-Luen Heng
EUROGP
2000
Springer
177views Optimization» more  EUROGP 2000»
13 years 11 months ago
Register Based Genetic Programming on FPGA Computing Platforms
The use of FPGA based custom computing platforms is proposed for implementing linearly structured Genetic Programs. Such a context enables consideration of micro architectural and ...
Malcolm I. Heywood, A. Nur Zincir-Heywood
TIT
2010
61views Education» more  TIT 2010»
13 years 2 months ago
Tunstall code, Khodak variations, and random walks
A variable-to-fixed length encoder partitions the source string into variable-length phrases that belong to a given and fixed dictionary. Tunstall, and independently Khodak, desig...
Michael Drmota, Yuriy A. Reznik, Wojciech Szpankow...