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» Estimating query performance using class predictions
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SIGMOD
2010
ACM
214views Database» more  SIGMOD 2010»
15 years 8 months ago
ParaTimer: a progress indicator for MapReduce DAGs
Time-oriented progress estimation for parallel queries is a challenging problem that has received only limited attention. In this paper, we present ParaTimer, a new type of timere...
Kristi Morton, Magdalena Balazinska, Dan Grossman
WSDM
2009
ACM
114views Data Mining» more  WSDM 2009»
15 years 10 months ago
Wikipedia pages as entry points for book search
A lot of the world’s knowledge is stored in books, which, as a result of recent mass-digitisation efforts, are increasingly available online. Search engines, such as Google Book...
Marijn Koolen, Gabriella Kazai, Nick Craswell
EDBT
2006
ACM
105views Database» more  EDBT 2006»
16 years 3 months ago
HASE: A Hybrid Approach to Selectivity Estimation for Conjunctive Predicates
Current methods for selectivity estimation fall into two broad categories, synopsis-based and sampling-based. Synopsis-based methods, such as histograms, incur minimal overhead at ...
Xiaohui Yu, Nick Koudas, Calisto Zuzarte
ICDT
2001
ACM
116views Database» more  ICDT 2001»
15 years 7 months ago
On Optimizing Nearest Neighbor Queries in High-Dimensional Data Spaces
Abstract. Nearest-neighbor queries in high-dimensional space are of high importance in various applications, especially in content-based indexing of multimedia data. For an optimiz...
Stefan Berchtold, Christian Böhm, Daniel A. K...
WACV
2002
IEEE
15 years 8 months ago
Appearance-based Eye Gaze Estimation
We present a method for estimating eye gaze direction, which represents a departure from conventional eye gaze estimation methods, the majority of which are based on tracking spec...
Kar-Han Tan, David J. Kriegman, Narendra Ahuja