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» On the complexity of optimization over the standard simplex
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87
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SIGMOD
1996
ACM
131views Database» more  SIGMOD 1996»
15 years 1 months ago
Materialized View Maintenance and Integrity Constraint Checking: Trading Space for Time
We investigate the problem of incremental maintenance of an SQL view in the face of database updates, and show that it is possible to reduce the total time cost of view maintenanc...
Kenneth A. Ross, Divesh Srivastava, S. Sudarshan
TWC
2008
209views more  TWC 2008»
14 years 9 months ago
Application of Nonbinary LDPC Cycle Codes to MIMO Channels
In this paper, we investigate the application of nonbinary low-density parity-check (LDPC) cycle codes over Galois field GF(q) to multiple-input multiple-output (MIMO) channels. Tw...
Ronghui Peng, Rong-Rong Chen
72
Voted
TASLP
2002
84views more  TASLP 2002»
14 years 9 months ago
Substate tying with combined parameter training and reduction in tied-mixture HMM design
Two approaches are proposed for the design of tied-mixture hidden Markov models (TMHMM). One approach improves parameter sharing via partial tying of TMHMM states. To facilitate ty...
Liang Gu, Kenneth Rose
76
Voted
EGOV
2009
Springer
15 years 4 months ago
eGIF4M: eGovernment Interoperability Framework for Mozambique
Harmonizing decentralized development of ICT solutions with centralized strategies, e.g., meant to favor reuse and optimization of resources, is a complex technical and organizatio...
Pavel Shvaiko, Adolfo Villafiorita, Alessandro Zor...
MICCAI
2010
Springer
14 years 8 months ago
Detecting Brain Activation in fMRI Using Group Random Walker
Due to the complex noise structure of functional magnetic resonance imaging (fMRI) data, methods that rely on information within a single subject often results in unsatisfactory fu...
Bernard Ng, Ghassan Hamarneh, Rafeef Abugharbieh