Efficient Data Structures for Tamper-Evident Logging ppt

... ACM SIGMOD International Conference on Management of Data (Baltimore, MD, June 2005), pp. 395–406. Efficient Data Structures for Tamper-Evident Logging Scott A. Crosby Dan S. Wallach scrosby@cs.rice.edu ... Section 5 describes a prototype implementation for tamper-evident logging of syslog data traces. Section 6 discusses approaches for scaling the logger’s performance....

Ngày tải lên: 30/03/2014, 16:20

... staggered decoding efficiently performs the search step. For this purpose, we can basically use the Viterbi algo- rithm. In earlier iterations, the Viterbi algorithm is indeed efficient because the ... because the transition information is crucial for the two tasks, and the assumption behind C ARPEDIEM is violated. In contrast, the proposed algorithms per- formed reasonably well for all...

Ngày tải lên: 07/03/2014, 22:20

... graphs for Markov sources. Elektronische Infor- mationsverarbeitung und Kybernetik, 29(5):283–292, 1993. [8] S. Kapoor and E. M. Reingold. Stochastic rearrangement rules for self-organizing data structures. ... their many helpful suggestions, as well as for pointing out [4] to us. 11 References [1] P. Chassaing. Optimality of move-to-front for self-organizing data structures wi...

Ngày tải lên: 19/02/2014, 18:20

... 392 Adding elds 393 Manipulating data 394 www.it-ebooks.info Table of Contents [ ix ] Transforming data 396 Generating data 401 Writing a scripted lookup to enrich data 403 Writing an event renderer ... with Splunk, we nd: • Add data: This links to the Add Data to Splunk page. This interface is a great start for getting local data owing into Splunk. The new Preview data...

Ngày tải lên: 07/03/2014, 04:20

... the same data. The accuracy enhancement of predicate argu- ment recognition determines up to 14% better IE re- sults. These results enforce our claim that predicate argument information for IE ... was to select for each verb the roles that seem to occur most frequently and use these roles as mnemonics for the predicate argu- ments. Generally, Arg0 would stand for agent, Arg1 for di...

Ngày tải lên: 08/03/2014, 04:22

... protein complex formation is crucial for siRNA channelling into RISC and mediating the transition between the initiation and execution phases of RNAi. Ago proteins are key components of RISC responsible for ... effect. Silencing of viral RNA was observed to be most efficient in cases of long dsRNA (89%), long dsDNA (84%), and siRNA (89%), and less efficient for siDNA (70%), whereas lo...

Ngày tải lên: 16/03/2014, 02:20

... calculated separately for each u in sequence. Allauzen et al. (2010) introduce a transducer for simultaneous calculation of p(u|E) for all un- igrams u ∈ N 1 in a lattice. This transducer is effective for finding ... has a compact form with one arc from the start state for each u i ∈ N n : 0 i u i /- log p(u i |E) 3.1 Efficient Path Posterior Calculation Although X n has a convenien...

Ngày tải lên: 23/03/2014, 16:20

... been shown to give competitive perfor- mance relative to phrase-based SMT. For these systems, a hypergraph or packed forest provides a compact representation for encoding a huge num- ber of translation ... 1.0 for the aren-phrase, aren-hier, aren-samt, zhen-phrase zhen-hier and zhen-samt systems re- spectively. For the multi-language case, we train phrase-based systems and perform lat...

Ngày tải lên: 23/03/2014, 16:21

... inference, we use the forward-backward procedure to calculate marginals (Sutton and McCal- lum, 2006). We formally describe here an efficient calculation of α and β recursions for the forward- backward ... Sparse model. For the hyper parameter , we empir- ically selected 0.001 for Method 1 (this preserves 99% of probability density), 0 for Method 2, and 4 for Meth- ods 3 and 4. No...

Ngày tải lên: 23/03/2014, 17:20

... ASCII-based input/output format. In addition, a new XML-based file format primarly designed as being human readable and a fast binary file format are also supported. All file formats support optional on-the-fly ... Technology 52056 Aachen, Germany {kanthak,ney}@informatik.rwth-aachen.de Abstract In this paper we present the RWTH FSA toolkit – an efficient implementation of algorithms for creat...

Ngày tải lên: 23/03/2014, 19:20