220 search results - page 42 / 44 » Transform-Based Methods for Indexing and Retrieval of 3D Obj... |
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
Given an object q, modeled by a multidimensional point, a reverse nearest neighbors (RNN) query returns the set of objects in the database that have q as their nearest neighbor. I...
ICDE
2002
IEEE
14 years 9 months ago
2002
IEEE
We investigate techniques for analysis and retrieval of object trajectories in a two or three dimensional space. Such kind of data usually contain a great amount of noise, that ma...
SIGMOD
2002
ACM
14 years 7 months ago
2002
ACM
Applications like multimedia retrieval require efficient support for similarity search on large data collections. Yet, nearest neighbor search is a difficult problem in high dimen...
ICDE
2007
IEEE
13 years 11 months ago
2007
IEEE
The problem of trajectory similarity in moving object databases is a relatively new topic in the spatial and spatiotemporal database literature. Existing work focuses on the spati...
SIGMOD
2010
ACM
13 years 2 months ago
2010
ACM
We propose and study a new ranking problem in versioned databases. Consider a database of versioned objects which have different valid instances along a history (e.g., documents i...