3368 search results - page 99 / 674 » The Complexity of Query Reliability |
SIGIR
2008
ACM
13 years 8 months ago
2008
ACM
Question answering systems increasingly need to deal with complex information needs that require more than simple factoid answers. The evaluation of such systems is usually carrie...
ICASSP
2011
IEEE
13 years 20 days ago
2011
IEEE
— This paper proposes an efficient blind deterministic carrier frequency offset (CFO) estimation method for orthogonal frequency division multiplexing (OFDM) systems. In the pro...
FSEN
2009
Springer
14 years 3 months ago
2009
Springer
Abstract. We analyze a model of fault-tolerant systems in a probabilistic setting. The model has been introduced under the name of “sabotage games”. A reachability problem over...
TC
2011
13 years 3 months ago
2011
— Processing the gathered information efficiently is a key functionality for wireless sensor networks. In this article, we study the time complexity, message complexity (number ...
FOCS
2003
IEEE
14 years 2 months ago
2003
IEEE
We give a complexity theoretic classification of homomorphism problems for graphs and, more generally, relational structures obtained by restricting the left hand side structure ...