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ICIP
2001
IEEE
14 years 9 months ago
Hierarchical watermarking depending on local constraints
In this paper we propose a new watermarking technique where the watermark is embedded according to two keys. The first key is used to embed a code bit in a block of pixels. The se...
Christopher D. Coltman, Adrian G. Bors
VLDB
1994
ACM
99views Database» more  VLDB 1994»
13 years 11 months ago
Join Index Hierarchies for Supporting Efficient Navigations in Object-Oriented Databases
A join index hierarchy method is proposed to handle the "goto's on disk" problem in objectoriented query processing. The method constructs a hierarchy of join indic...
Zhaohui Xie, Jiawei Han
ANTSW
2008
Springer
13 years 9 months ago
Dissemination of Information with Fair Load Distribution in Self-organizing Grids
This paper presents an ant-inspired algorithm for building a self-organizing information system of a Grid. Ant-inspired mobile agents travel the Grid through P2P (peer-to-peer) int...
Agostino Forestiero, Carlo Mastroianni, Giandomeni...
NIPS
2003
13 years 9 months ago
Applying Metric-Trees to Belief-Point POMDPs
Recent developments in grid-based and point-based approximation algorithms for POMDPs have greatly improved the tractability of POMDP planning. These approaches operate on sets of...
Joelle Pineau, Geoffrey J. Gordon, Sebastian Thrun
IJCAI
1997
13 years 9 months ago
Scaling the Dynamic Approach to Autonomous Path Planning: Planning Horizon Dynamics
In the dynamical systems approach to robot path planning both sensed and remembered information contribute to shape a nonlinear vector eld that governs the behavior of an autonomo...
Edward W. Large, Henrik I. Christensen, Ruzena Baj...