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MM
2009
ACM
220views Multimedia» more  MM 2009»
14 years 2 months ago
Multi-modal scene segmentation using scene transition graphs
In this work the problem of automatic decomposition of video into elementary semantic units, known in the literature as scenes, is addressed. Two multi-modal automatic scene segme...
Panagiotis Sidiropoulos, Vasileios Mezaris, Ioanni...
ICDM
2008
IEEE
222views Data Mining» more  ICDM 2008»
14 years 4 months ago
GRAPHITE: A Visual Query System for Large Graphs
We present Graphite, a system that allows the user to visually construct a query pattern, finds both its exact and approximate matching subgraphs in large attributed graphs, and ...
Duen Horng Chau, Christos Faloutsos, Hanghang Tong...
MST
2006
129views more  MST 2006»
13 years 10 months ago
Reachability Problems on Regular Ground Tree Rewriting Graphs
We consider the transition graphs of regular ground tree (or term) rewriting systems. The vertex set of such a graph is a (possibly infinite) set of trees. Thus, with a finite tree...
Christof Löding
ICASSP
2009
IEEE
14 years 4 months ago
Factor graph based design of an OFDM-IDMA receiver performing joint data detection, channel estimation, and channel length selec
We present a factor graph based design of a receiver for pilotassisted OFDM-IDMA systems transmitting over frequency-selective channels. The receiver performs joint iterative mult...
Clemens Novak, Gerald Matz, Franz Hlawatsch
ICASSP
2008
IEEE
14 years 4 months ago
A factor graph approach to joint iterative data detection and channel estimation in pilot-assisted IDMA transmissions
We consider a pilot-assisted interleave-division multiple access (IDMA) system transmitting over block-fading channels. We describe this system in terms of a factor graph and use ...
Clemens Novak, Gerald Matz, Franz Hlawatsch