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AAAI
2010
15 years 5 months ago
Local Search in Histogram Construction
The problem of dividing a sequence of values into segments occurs in database systems, information retrieval, and knowledge management. The challenge is to select a finite number ...
Felix Halim, Panagiotis Karras, Roland H. C. Yap
ICISC
2007
97views Cryptology» more  ICISC 2007»
15 years 5 months ago
New Local Collisions for the SHA-2 Hash Family
The starting point for collision attacks on practical hash functions is a local collision. In this paper, we make a systematic study of local collisions for the SHA-2 family. The p...
Somitra Kumar Sanadhya, Palash Sarkar
ICVGIP
2004
15 years 5 months ago
A Robust Nonparametric Estimation Framework for Implicit Image Models
Robust model fitting is important for computer vision tasks due to the occurrence of multiple model instances, and, unknown nature of noise. The linear errors-in-variables (EIV) m...
Himanshu Arora, Maneesh Singh, Narendra Ahuja
FTCS
1997
57views more  FTCS 1997»
15 years 5 months ago
Predicting Physical Processes in the Presence of Faulty Sensor Readings
A common problem in the operation of mission critical control systems is that of determining the future value of a physical quantity based upon past measurements of it or of relat...
Matthew Clegg, Keith Marzullo
138
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GLOBECOM
2008
IEEE
15 years 4 months ago
Power Allocation for Cognitive Radios Based on Primary User Activity in an OFDM System
Efficient and reliable power allocation algorithm in Cognitive radio (CR) networks is a challenging problem. Traditional water-filling algorithm is inefficient for CR networks due ...
Ziaul Hasan, Ekram Hossain, Charles L. Despins, Vi...