6103 search results - page 1068 / 1221 » Multimedia Retrieval Algorithmics |
SIGMOD
2004
ACM
14 years 8 months ago
2004
ACM
Subsequence similarity matching in time series databases is an important research area for many applications. This paper presents a new approximate approach for automatic online s...
SIGMOD
2003
ACM
14 years 8 months ago
2003
ACM
Spatial database operations are typically performed in two steps. In the filtering step, indexes and the minimum bounding rectangles (MBRs) of the objects are used to quickly dete...
PODS
2006
ACM
14 years 8 months ago
2006
ACM
B-trees are the data structure of choice for maintaining searchable data on disk. However, B-trees perform suboptimally ? when keys are long or of variable length, ? when keys are...
MOBISYS
2007
ACM
14 years 7 months ago
2007
ACM
In this paper, we propose a simple yet effective method of identifying traffic conditions on surface streets given location traces collected from on-road vehicles--this requires o...
WSDM
2010
ACM
14 years 5 months ago
2010
ACM
We describe a machine learning approach for predicting sponsored search ad relevance. Our baseline model incorporates basic features of text overlap and we then extend the model t...