Tài liệu Báo cáo khoa học: A facile method for expression and puriﬁcation of the Alzheimer’s disease-associated amyloid b-peptide pdf

... GGGTTCT AACAAGGGTGCT-3¢;Abc, 5¢-CACAACGCCACCAACCATCAGACCGATGATAGCACCCTTGTTAGAACCCAC-3¢;Ab-start, 5¢-GCGTAGGGTCGACATATGGACGCTGAATTCCGTCACG-3¢;Abstop, 5¢-CCTGCCGAGCTCCTATTACACAACGCCACCAACCATCAG-3¢. The ... Ab(1–40) and Ab(M1–40) are at least 97%pure. In the lanes containing Ab(1–42) and Ab(M1–42), there were prominent bands at approximately4 kDa and faint bands at approximately 14 kDa. The band at approximately ... Monomeric A b is indicated by an arrow and an Ab42species migrating at approximately 14 kDa is indicated by an arrow and an asterisk.D. M. Walsh et al. Expression and puriﬁcation of the amyloid b-peptide FEBS...

Tài liệu Báo cáo khoa học: "A Statistical Model for Unsupervised and Semi-supervised Transliteration Mining" pptx

... algorithm has a for- ward variable α and a backward variable β which arecalculated in the standard way (Deligne and Bimbot,1995). Consider a node r which is connected with a node s via an arc labelled ... creates a reasonable alignment of the labelleddata from which multigram counts can be obtained. The labelled data is a small list of transliterationpairs. Therefore we use the unlabelled data ... Russian/English data.In future work, we plan to adapt our approachto language pairs where one language is alphabetic and the other language is non-alphabetic such as En-glish/Japanese. These language pairs...

Tài liệu Báo cáo khoa học: "A Writing Assistant for CAT and CALL" pdf

... train TransAhead, we used British National Corpus and Hong Kong Parallel Text and deployed GENIA tagger for POS analyses. To evaluate TransAhead in CAT and CALL, we introduced it to a class ... on language learning. Specifically, our goal is to build a human-computer collaborative writing assistant: helping the language learner with in- text grammar and translation and at the same ... patterns characterizing the query’s word usages follow the notion of pattern grammar in (Hunston and Francis, 2000) and are collected across the target language. In the fourth and final stage,...

Tài liệu Báo cáo khoa học: "A COMMON FRAMEWORK FOR ANALYSIS AND GENERATION" potx

... formal paraphrase of (1) must include at least as much information as we have given above. In particular, the logical structure of our para- phrases contains essential information (about, for ... that you will even be able to tell whether some semantic representation has a realisation as a natural language text at all. If we look again at the knowledge available to our "average ... we actually used in our analysis of (1) is an elaboration of the standard S , NP VP rule which contains a description of how the mean- ings of the NP and the VP should be combined to obtain...

Tài liệu Báo cáo khoa học: "A Gibbs Sampler for Phrasal Synchronous Grammar Induction" docx

... Proceedings of the 47th Annual Meeting of the ACL and the 4th IJCNLP of the AFNLP, pages 782–790,Suntec, Singapore, 2-7 August 2009.c2009 ACL and AFNLP A Gibbs Sampler for Phrasal Synchronous Grammar ... optimized for MT (Chang et al., 2008). The Arabic text was preprocessed according to the D2 scheme of Habash and Sadat (2006), whichwas identiﬁed as optimal for corpora this size. The parameters of the ... shows the projected alignment of a headline from the thousandth sample on the NISTChinese data set. The effect of the grammar basedalignment can clearly be seen. Where the combi-nation of GIZA++...

Tài liệu Báo cáo khoa học: "A Modular Toolkit for Coreference Resolution" pdf

... format for standoff annotation allows the use of the coreference resolution as part of a larger sys-tem, but also performing qualitative error analysisusing integrated MMAX2 functionality (annotation1An ... entities, as well as additional in-formation such as part -of- speech tags and mergingthese information into markables that are the start-ing point for the mentions used by the coreferenceresolution ... proper.Starting out with a chunking pipeline, whichuses a classical combination of tagger and chun-ker, with the Stanford POS tagger (Toutanova et al.,2003), the YamCha chunker (Kudoh and Mat-sumoto,...

Tài liệu Báo cáo khoa học: "A Pipeline Framework for Dependency Parsing" ppt

... accuracy(RA) and leaf accuracy (LA), as in (Yamada and Matsumoto, 2003). When evaluating the result,we exclude the punctuation marks, as done in (Mc-Donald et al., 2005) and (Yamada and Matsumoto,2003).4.3 ... number of actions and that StepBack is the best choice. Note that, since the ac-tions are the gold-standard actions, the policy af-fects only the number of S actions used, and not the L and R actions, ... give us another strong reason to useStep Back, since the classiﬁcation becomes moreaccurate – a more natural class of actions, with a smaller number of candidate actions.Once the parsing algorithm,...

Tài liệu Báo cáo khoa học: "A Multimodal Interface for Access to Content in the Home" pdf

... outside of the current database. Ideally the system would have a far larger vocabu-lary than the current database so that it would be able to recognize items that are outside the data-base. ... multimodal grammar template and any available corpus training data to build a multimo-dal understanding model and speech recognition language model. The user interacts with the multimodal user ... the in grammar inputs, word accu-racy is 86% and sentence accuracy 83%. The vo-cabulary size was 3851 for this task. In the corpus, there are a total of 356 out -of- vocabulary words. Handwriting...

Tài liệu Báo cáo khoa học: "A Unified Framework for Automatic Evaluation using N-gram Co-Occurrence Statistics" pptx

... and a value of 0 indicating that the automatic evaluation explains nothing from the human evaluation variation. All the results for the values of R2 for the family of metrics AEv(α,N) are ... evaluations of various applications under various evaluation guidelines. We measure the amount of approximation of a human evaluation by an automatic evaluation as the value of the coefficient of ... to the application being evaluated (Machine Translation, Automatic Summarization, and Automatic Question Answering) and the evaluation guidelines used by humans for evaluating such applications....

Tài liệu Báo cáo khoa học: " A Declarative Language for Implementing Dynamic Programs∗" pptx

... not (false value) Then a* b is implementedas a ∧ b, and a+ b as a ∨ b. The Dyna programmer can declare the agenda disci-pline—i.e., the order in which updates are processed—toobtain variant algorithms. ... may have val-ues between 0 and 1.83 C++ Interface and Implementation A Dyna program compiles to a set of portable C++classes that manage the items and perform inference.These classes can ... parsing (Cara-ballo and Charniak, 1998; Klein and Manning, 2003).2.4 Parameter TrainingDyna provides facilities for training parameters. For ex-ample, from Fig. 1, it automatically derives the...

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