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GECCO
2005
Springer
139views Optimization» more  GECCO 2005»
15 years 5 months ago
Use of a genetic algorithm in brill's transformation-based part-of-speech tagger
The tagging problem in natural language processing is to find a way to label every word in a text as a particular part of speech, e.g., proper noun. An effective way of solving th...
Garnett Carl Wilson, Malcolm I. Heywood
ICALP
2005
Springer
15 years 5 months ago
Improved Lower Bounds for Locally Decodable Codes and Private Information Retrieval
We prove new lower bounds for locally decodable codes and private information retrieval. We show that a 2-query LDC encoding nbit strings over an ℓ-bit alphabet, where the decode...
Stephanie Wehner, Ronald de Wolf
DIALM
2004
ACM
113views Algorithms» more  DIALM 2004»
15 years 5 months ago
Gathering correlated data in sensor networks
In this paper, we consider energy-efficient gathering of correlated data in sensor networks. We focus on single-input coding strategies in order to aggregate correlated data. For ...
Pascal von Rickenbach, Roger Wattenhofer
MM
2004
ACM
109views Multimedia» more  MM 2004»
15 years 5 months ago
Loss-resilient on-demand media streaming using priority encoding
A novel solution to the reliable multicast problem is the “digital fountain” approach, in which data is encoded with an erasure protection code before transmission, and receiv...
Cheng Huang, Ramaprabhu Janakiraman, Lihao Xu
MOBICOM
2004
ACM
15 years 5 months ago
Initializing newly deployed ad hoc and sensor networks
A newly deployed multi-hop radio network is unstructured and lacks a reliable and efficient communication scheme. In this paper, we take a step towards analyzing the problems exis...
Fabian Kuhn, Thomas Moscibroda, Roger Wattenhofer