**Báo cáo khoa học: "Iterative Viterbi A* Algorithm for K-Best Sequential Decoding" docx**

Báo cáo khoa học: "Iterative Viterbi A* Algorithm for K-Best Sequential Decoding" docx

... evaluated the A* and itera-tive A* algorithms for 1-best sequential decoding inthis paper. In addition, we proposed A* and iterative Viterbi A* algorithm for k-best sequential decoding. K-best Iterative ... a bottleneck for exist-ing sequential tagging algorithms. In this pa-per we propose 1-best A*, 1-best iterative A*, k-best A* and k-best iterative Viterbi A* al-gorithms for sequential decoding. ... thecorresponding k-best sequences.3.5 K-Best Viterbi A* To our best knowledge the most efﬁcient k-best se-quence algorithm is the Viterbi A* algorithm asshown in Algorithm 3. The algorithm consists...

Tài liệu Báo cáo khoa học: "ADP based Search Algorithm for Statistical Machine Translation" docx

... additional parameter into the recursion formula for DP. In the following, we will explain this method in detail. 2.3 Recursion Formula for DP In the DP formalism, the search process is described ... words we have to force the algorithm to cover all input string positions. Different strategies to solve this problem are possible: For example, we can in- troduce a reward for covering a position, ... little meaningful information or the information is different from the input. Examples for each category are given in Table 3. Table 4 shows the statistics of the translation performance. When...

Báo cáo khoa học: "An efﬁcient algorithm for building a distributional thesaurus (and other Sketch Engine developments)" pdf

... included.The algorithm then loops over each context(CONTEXTS is the set of all contexts): for r, w′ in CONTEXTS:WLIST = set of all w where w, r, w′ exists for w1in WLIST: for w2in ... Poster Sessions, pages 41–44,Prague, June 2007.c2007 Association for Computational LinguisticsAn efﬁcient algorithm for building a distributional thesaurus (and otherSketch Engine developments)Pavel ... above the thresh-old2http://www.natcorp.ox.ac.uk3http://www.askoxford.com/oec/ We are grateful to OxfordUniversity Press for permission to use the OEC.42Corp MIN WDS TYP CTX TIMEBNC 1 152k...

Tài liệu Báo cáo khoa học: "An alternative LR algorithm for TAGs" docx

... incorrectness have been given before by Kinyon (1997). There seems to be no straightforward way to correct the algorithm. We therefore developed an alternative to the algorithm from Schabes and ... alternative LR algorithm for TAGs Mark-Jan Nederhof DFKI Stuhlsatzenhausweg 3 D-66123 Saarbr/icken, Germany E-marl: nederhof@dfki.de Abstract We present a new LR algorithm for tree- adjoining ... satisfying: • CS(N) + C_ CS(N), for each N; • (N, L) • CS(N), for each N such that N <~* l, and each L • Af*; • N • CS(N), for each N such that -~(N<~*l); and • for each N, children(N)...

Tài liệu Báo cáo khoa học: "An Efficient Generation Algorithm for Lexicalist MT" ppt

... An Efficient Generation Algorithm for Lexicalist MT Victor Poznafiski, John L. Beaven &: Pete Whitelock * SHARP Laboratories of Europe Ltd. Oxford Science Park, Oxford OX4 4GA United Kingdom ... Shake-and-Bake generation algorithm of (Whitelock, 1992) is NP- complete. We present a polynomial time algorithm for lexicalist MT generation pro- vided that sufficient information can be transferred ... them for grammatical well-formedness. If they are well-formed, the system halts indicating success. If not, another permutation is tried and the process repeated. The complexity of this algorithm...

Báo cáo khoa học: "An Earley Parsing Algorithm for Range Concatenation Grammars" potx

... construction of Chinesenumber names.Parsing algorithms for RCG have been intro-duced by Boullier (2000), who presents a di-rectional top-down parsing algorithm using pseu-docode, and Barthélemy ... parsers for RCG, formulat-ing them in the framework of parsing as deduction(Shieber et al., 1995). The second section intro-duces necessary definitions. Section 3 presents aCYK-style algorithm ... predicate ofthe form Ai(α1, . . . , αdim(Ai)) with Ai∈ N andαj∈ (T ∪ V )∗ for 1 ≤ j ≤ dim(Ai).Central to RCGs is the notion of ranges onstrings.Definition 2. For every w = w1....

Báo cáo khoa học: Aly⁄ REF, a factor for mRNA transport, activates RH gene promoter function pptx

... T. Hatano for valuable technical assistance. This work wassupported by Grants-in-Aid for Scientiﬁc Research for the Ministry of Education, Science and Culture ofJapan (Nos. 15590587 for Dr. H. ... transfection assays wereperformed.EMSAEMSA reactions were performed using nuclear extracts ofHEL cells and [32P]dCTP-labelled double-stranded probes(Fig. 2B). For supershift assays, 1 lL ... 15591018 for Dr. T. Kamesaki and 15590586 for Dr. S. Iwamoto).References1 Mollison PL, Engelfreit CP & Contreras M (1993)Blood Transfusion in Clinical Medicine, 9th edn. Black-well, Oxford.2...

Báo cáo khoa học: "An Exact A* Method for Deciphering Letter-Substitution Ciphers" doc

... G(i−2, j2, k)× P (j1|j2) × P(l|j2j1)).end for end for for i = 4 to r do for (l, k) such that σ ∪ {k : c, l : Ci} is con-sistent do for j1, j2such that σ ∪ {k : c, j2:C[i−2], ... exact method for decipher-ing messages using a generalization of the Viterbi algorithm. We test this model on aset of ciphers developed from various websites, and ﬁnd that our algorithm has ... rangeof σ, and then use our generalization of the Viterbi algorithm to ﬁnd, for each p not in the domain ofσ, a score to rank the choice of p for c, namely thetrigram probability of the extension...

Báo cáo khoa học: "Bayesian Network, a model for NLP?" ppt

... decision4. T he inference stage exploits therelationships for the propagation of the informa-tion and the BN operates by information reinforce-ment to label a pronoun. We applied all precedentrules ... HCrules method are marked in grey, white is for the LC rules method and black for the Clement’smethod3. The Pronoun node estimates the de-cision probability for a given it occurence to benon-anaphoric.The ... traditional systems. This ap-proach stands on the formalism, still little ex-ploited for NLP, of Bayesian Network (BN). Asa probabilistic formalism, it offers a great expres-sion capacity...

Báo cáo khoa học: "Demonstration of a prototype for a Conversational Companion for reminiscing about images" doc

... between fun-damental concepts. o A mechanism for storing infor-mation in a triple store (Subject-Predicate-Object) - the RDF Semantic Web format - for han-dling unexpected user input that falls ... interfaces for the Dia-logue Action Forms (DAF) to use. It has an easy-to-use high-level interface for general DAF de-signers to code associated tests and actions as well as a low level interface for ... 2008). The KB is a long-term store of information which makes it possible for the SC to retrieve information stored between different sessions. The information can be accessed anytime it is...

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