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AI
2005
Springer
14 years 11 months ago
Learning to talk about events from narrated video in a construction grammar framework
The current research presents a system that learns to understand object names, spatial relation terms and event descriptions from observing narrated action sequences. The system e...
Peter Ford Dominey, Jean-David Boucher
TCOM
2008
119views more  TCOM 2008»
14 years 11 months ago
Maximum likelihood detection for differential unitary space-time modulation with carrier frequency offset
Can conventional differential unitary space time modulation (DUSTM) be applied when there is an unknown carrier frequency offset (CFO)? This paper answers this question affirmative...
Feifei Gao, Tao Cui, Arumugam Nallanathan, Chintha...
APAL
2002
77views more  APAL 2002»
14 years 11 months ago
Degree spectra and computable dimensions in algebraic structures
Whenever a structure with a particularly interesting computability-theoretic property is found, it is natural to ask whether similar examples can be found within well-known classe...
Denis R. Hirschfeldt, Bakhadyr Khoussainov, Richar...
LATINCRYPT
2010
14 years 10 months ago
On the Impossibility of Batch Update for Cryptographic Accumulators
Abstract. A cryptographic accumulator is a scheme where a set of elements is represented by a single short value. This value, along with another value called witness, allows to pro...
Philippe Camacho, Alejandro Hevia
SIAMCOMP
2010
133views more  SIAMCOMP 2010»
14 years 10 months ago
Faster Algorithms for All-pairs Approximate Shortest Paths in Undirected Graphs
Let G = (V, E) be a weighted undirected graph having non-negative edge weights. An estimate ˆδ(u, v) of the actual distance δ(u, v) between u, v ∈ V is said to be of stretch t...
Surender Baswana, Telikepalli Kavitha