Efficient Data Structures for Tamper-Evident Logging ppt
Efficient Data Structures for Tamper-Evident Logging ppt
... ACM SIGMOD International Conference onManagement of Data (Baltimore, MD, June 2005),pp. 395–406. Efficient Data Structures for Tamper-Evident Logging Scott A. Crosby Dan S. Wallachscrosby@cs.rice.edu ... Section 5 describesa prototype implementation for tamper-evident logging of syslog data traces. Section 6 discusses approaches for scaling the logger’s performance. Related work ispresented in Section ... fix thesame events for their shared past.)2.4 Other threat modelsForward integrity Classic tamper-evident logging uses a different threat model, forward integrity [4]. Theforward integrity...
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Báo cáo khoa học: "Efficient Staggered Decoding for Sequence Labeling" pptx
... staggereddecoding efficiently performs the search step. For this purpose, we can basically use the Viterbi algo-rithm. In earlier iterations, the Viterbi algorithm isindeed efficient because the ... becausethe transition information is crucial for the twotasks, and the assumption behind CARPEDIEM isviolated. In contrast, the proposed algorithms per-formed reasonably well for all three tasks, ... stronglycorrelated. This assumption is appropriate for 486some NLP tasks. For example, as suggested in(Liang et al., 2008), adjacent labels do not providestrong information in POS tagging. However, theapplicability...
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Tài liệu Data Structures on Event Graphs ppt
... 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 wellas for pointing out [4] to us.11References[1] P. Chassaing. Optimality of move-to-front for self-organizing data structures withlocality of references. ... Comput.,30(3):906–922, 2000.[10] L. K. Konneker and Y. L. Varol. A note on heuristics for dynamic organizationof data structures. Inform. Process. Lett., 12(5):213–216, 1981.[11] K. Lam, M. Y. Leung, and...
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Implementing Splunk: Big Data Essentials for Operational Intelligence ppt
... 392Adding elds 393Manipulating data 394www.it-ebooks.infoTable of Contents[ ix ]Transforming data 396Generating data 401Writing a scripted lookup to enrich data 403Writing 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 interface takes an ... the examples should be applicable to your own data. Splunk can be downloaded for free from http://www.splunk.com/download, for most popular platforms.The sample code was developed on a Unix...
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Báo cáo khoa học: "Using Predicate-Argument Structures for Information Extraction" ppt
... 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 predicateargument information for IE ... was to select for each verb theroles that seem to occur most frequently and usethese roles as mnemonics for the predicate argu-ments. Generally, Arg0 would stand for agent,Arg1 for direct object ... verbs (e.g. fall, gainor lose for the “market change” topic). These pat-terns are matched against documents for identifyingand extracting domain-relevant information. Suchpatterns are either...
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Báo cáo khoa học: A new and efficient method for inhibition of RNA viruses by DNA interference pptx
... proteincomplex formation is crucial for siRNA channellinginto RISC and mediating the transition between theinitiation and execution phases of RNAi. Ago proteinsare key components of RISC responsible for ... effect. Silencing of viral RNA was observed tobe most efficient in cases of long dsRNA (89%), longdsDNA (84%), and siRNA (89%), and less efficient for siDNA (70%), whereas long scrambled dsDNAand ... proposed for oligode-oxynucleotides (ODNs), which efficiently reducedretroviral replication both in human cell culture and amouse model [30,31]. The ODNs (54 nucleotides) weredesigned to form...
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Báo cáo khoa học: "Efficient Path Counting Transducers for Minimum Bayes-Risk Decoding of Statistical Machine Translation Lattices" pptx
... calculatedseparately for each u in sequence.Allauzen et al. (2010) introduce a transducer for simultaneous calculation of p(u|E) for all un-igrams u ∈ N1in a lattice. This transducer iseffective for finding ... has a compact form with one arc from the startstate for each ui∈ Nn:0iui/- log p(ui|E)3.1 Efficient Path Posterior CalculationAlthough Xnhas a convenient and elegant form,it can ... and PerformanceLattice MBR decoding performance is shown inTable 1. Compared to the maximum likelihoodtranslation hypotheses (row ML), LMBR givesgains of +0.8 to +1.0 BLEU for newswire data...
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Báo cáo khoa học: "Efficient Minimum Error Rate Training and Minimum Bayes-Risk Decoding for Translation Hypergraphs and Lattices" pptx
... been shown to give competitive perfor-mance relative to phrase-based SMT. For thesesystems, a hypergraph or packed forest provides acompact 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 trainphrase-based systems and perform lattice MBR for ... incomingedges are not linked to any rule. Figure 2 illus-trates the transformation for a hyperedge with ar-ity 3. The graph transformation is isomorphic.The rules associated with every hyperedge...
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Báo cáo khoa học: "Efficient Inference of CRFs for Large-Scale Natural Language Data" docx
... inference, we use the forward-backwardprocedure 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. Note that for Methods ... Commu-nicator data set. In the accuracy measure, the re-sults were 91.56 (MALLET), 91.87 (CRF++), and 91.92(ours). Our method performs 5∼50 times faster for training (1,774 s for MALLET, 18,134 s for...
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Báo cáo khoa học: "FSA: An Efficient and Flexible C++ Toolkit for Finite State Automata Using On-Demand Computation" ppt
... ASCII-based input/output format. In addition,a new XML-based file format primarly designed asbeing human readable and a fast binary file formatare also supported. All file formats support optionalon-the-fly ... Technology52056 Aachen, Germany{kanthak,ney}@informatik.rwth-aachen.deAbstractIn this paper we present the RWTH FSA toolkit – an efficient implementation of algorithms for creatingand manipulating weighted ... states. For example transducer determinization (Mohri, 1997)uses a set of pairs of states and weights. However,it is more convenient to use integers as state indices for an implementation. Therefore...
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