a generative probabilistic model for multi label classification
Tài liệu Báo cáo khoa học: "A Hybrid Hierarchical Model for Multi-Document Summarization" ppt
... 4: Manual EvaluationsHere, we manually evaluate quality of summaries, a common DUC task. Human annotators are giventwo sets of summary text for each document set,generated from two approaches: ... this paper.In this paper, we present a novel approach thatformulates MDS as a prediction problem basedon a two-step hybrid model: a generative model for hierarchical topic discovery and a regression model ... 12Overall 24 66 2Table 4: Frequency results of manual quality evaluations.Results are statistically significant based on t-test. T ie indi-cates evaluations where two summaries are rated equal.according...
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Báo cáo khoa học: "A Probabilistic Model for Fine-Grained Expert Search" pptx
... query expansion (Macdonald and Ounis, 2007), hierarchical lan-guage model (Petkova and Croft, 2006), and for- mal model generation (Balog et al., 2006; Fang et al., 2006). However, all of them ... behind the quadruple is that a query may be matched with phrases in various forms (denoted as topic here) and an expert candidate may appear with various name masks (denoted as person here), ... Alias, new email (NAE) 7% / 0.4600 Ritiwari rti-wari@hotmail.com Table 1. Various masks and their ambiguity 1) Every occurrence of a candidate’s email address is normalized to the appropriate...
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Tài liệu A COMPREHENSIVE QUANTITATIVE MODEL FOR ANALYZING BOND REFUNDING DECISIONS pptx
... replaced by a floating-rate bond, a floating-rate bond replaced by a fixed-rate bond,and a floating-rate bond replaced by another floating-rate bond with a different index or a different margin.MOTIVATION ... have to be evaluated on a case by casebasis to calculate the exact costs or savings produced by the various interacting variables. Consequently, there is a need for an interactive computer model ... fixed-rate or floating-rate bonds can similarlybe investigated by suitably amending the appropriate input variables. Several what-if scenarios can be investigated (orsimulated) to determine breakeven...
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Tài liệu Towards a conceptual reference model for project management information systems ppt
... outlinedabove by introducing a very fundamental data structurecalled Initiative (Fig. 3). An initiative is a generalizationof any form of action that has a defined start and end dateand is unde rtaken ... rtaken to reach a goal. Therefore, an initiativemay be a program, a project, a sub-project, a pro ject phase, a work package, an activity or a task (indicated by theinheritance relationship between ... Their feasibility, profitability, and strategic impactare analyzed so that a final decision can be made regard-ing their implementation (Idea Evaluation). This phaseends with a formal go/no-go...
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Tài liệu Báo cáo khoa học: "A Unified Graph Model for Sentence-based Opinion Retrieval" pdf
... represented by a bag-of-word. Among the words, there is a topic term Avatar (t1) occurring twice, i.e. Avatar in A and Avatar in C, and two senti-ment words comfortable (o1) and favorite (o2) ... 4.1.1 Benchmark Datasets Our experiments are based on the Chinese benchmark dataset, COAE08 (Zhao et al., 2008). COAE dataset is the benchmark data set for the opinion retrieval track in the ... Vital <性能 不> Performance No 1373fortable (o1) are also regarded as relevant opi-nion mistakenly, creating a false positive. In re-ality comfortable (o1) describes “the seats...
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Tài liệu Báo cáo khoa học: "A Joint Statistical Model for Simultaneous Word Spacing and Spelling Error Correction for Korean" pdf
... needs a word dictionary and takes long time for searching many character combinations. 614.2 Experiment Results and Analyses We used two separate Eumjeol n-grams as lan-guage models for experiments. ... exist spaces As shown above, the performance is dependent of the language model (n-gram) performance. Jaso transition probabilities can be obtained easily from small corpus because the ... single Jaso tran- 3 Jaso is a Korean character. 4 ‘Transition’ means the correct character is changed to other character due to some causes, such as typographical errors. sition case (나와욧Æ나와요...
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Tài liệu Báo cáo khoa học: "A Phonotactic Language Model for Spoken Language Identification" pptx
... Recognition Evaluation (LRE) data. The database was intended to establish a baseline of performance capability for language recognition of conversational tele-phone speech. The database contains recorded ... in a lower di-mensional Q-space, that makes the bag-of-sounds phonotactic language modeling, LMlλ, and classification computationally manageable. Suppose we have only one prototypical ... identification us-ing Gaussian Mixture model tokenization, in Proc. of ICASSP. Yonghong Yan, and Etienne Barnard. 1995. An ap-proach to automatic language identification based on language dependent...
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Tài liệu Báo cáo khoa học: "A Localized Prediction Model for Statistical Machine Translation" ppt
... paper, we present a block-based model for statis-tical machine translation. A block is a pair of phraseswhich are translations of each other. For example, Fig. 1shows an Arabic-English translation ... set of candidates. This computational advantageis the main reason that we adopt the local model in thispaper.3.3 Global versus Local ModelsBoth the global and the localized log-linear models ... Conference(HLT 04), pages 177–184, Boston, MA, May.Christoph Tillmann and Fei Xia. 2003. A Phrase-basedUnigram Model for Statistical Machine Translation. InCompanian Vol. of the Joint HLT and NAACL Confer-ence...
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Tài liệu Báo cáo khoa học: "A SPEECH-FIRST MODEL FOR REPAIR DETECTION AND CORRECTION" docx
... these cases as repairs, as well as to distinguish them from nonfrag- ment repairs. Thus, pausal duration may serve as a general acoustic cue for repair detection, particularly for the class ... test all the acoustic-prosodic features we examined in our de- scriptive analysis, since features such as glottalization and coarticulatory effects had not been labeled in our data base for ... glottalization. 5 Although interruption glottalization is usually associated with fragments, not all fragments are glottalized. In our database, 62% of fragments are not glottalized, and...
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Designing a Virtual Reality Model for Aesthetic Surgery docx
... serve as a three-dimensional atlas of the anatomy ger-mane to aesthetic surgery of the face. Althoughthese models can be viewed from any angleand made selectively transparent to illustrateanatomical ... photographs enhancedin Adobe Photoshop 7.0 and materials de-signed in Maya.RESULTS A virtual reality model of surgical superficialfacial anatomy was created. Included in this model are the ... cleft palate repair. Plast.Reconstr. Surg. 115: 236, 2005.21. Cutting, C., Oliker, A. , Khorammabadi, D., and Haddad,B. A deformer-based surgical simulator program for cleft lip and palate surgery....
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Báo cáo khoa học: "A Cascaded Linear Model for Joint Chinese Word Segmentation and Part-of-Speech Tagging" pdf
... ap-proach of discriminative models treats segmentationas a labelling problem by assigning each character a boundary tag (Xue and Shen, 2003), Joint S&Tcan be conducted in a labelling fashion ... propose a cascaded linear model for joint Chinese word segmentation and part-of-speech tagging. With a character-basedperceptron as the core, combined with real-valued features such as language models, ... at the same time, we expand boundarytags to include POS information by attaching a POSto the tail of a boundary tag as a postfix followingNg and Low (2004). As each tag is now composedof a...
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Báo cáo khoa học: "A Bio-inspired Approach for Multi-Word Expression Extraction" doc
... extraction of MWE plays an important rolein several areas, such as machine translation (Pas-cale,1997), information extraction (Kalliopi,2000)etc. On the other hand, there is also a need for ... (Violeta,2003; Ste-fan,2004; Arantza,2002). Some measures basedon advance statistical methods are also used,such as mutual expectation with single statis-tic model (Paul,2005),C-value/NC-value ... extraction, LCS approachis applied with great efficiency and per-formance guarantee. Experimental resultsshow that LCS-based approach achievesbetter results than n-gram.1 IntroductionLanguage...
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Báo cáo khoa học: "A Unified Statistical Model for the Identification of English BaseNP" pptx
... important subtask for many natural language processing applications,such as partial parsing, information retrieval andmachine translation. A baseNP is a simple nounphrase that does not contain other ... pp.218-224.COLING-ACL’98Lance A. Ramshaw and Michael P. Marcus ( InPress). Text chunking using transformation-basedlearning. In Natural Language Processing UsingVery large Corpora. Kluwer. Originally appearedin ... Treebank II,and the definition of baseNP is the same asRamshaw’s, Table 1 summarizes the averageperformance on both baseNP tagging and POStagging, each section of the whole PennTreebank was...
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Báo cáo khoa học: " A Noisy-Channel Model for Document Compression" pptx
... score for summary qualitywas not. For the Mitre data, the differences in scorebetween the Concat and Sent systems for grammati-cality and summary quality were statistically signif-icant at the ... text to assist aphasic readers. InProceedings of the AAAI-98 Workshop on IntegratingArtificial Intelligence and Assistive Technology.R. Chandrasekar, Christy Doran, and Srinivas Bangalore.1996. ... parser achieves an f-score of for EDUidentification, for identifying hierarchical spans, for nuclearity identification and for relation tagging.coherence was not. The score differences for gram-maticality,...
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- a generative constituentcontext model
- a generative entitymention model
- a general feature space for automatic verb classification
- a generative probabilistic ocr model for nlp applications
- a generative probabilistic model of local protein structure
- a scalable probabilistic classifier for language modeling
- a hierarchical phrasebased model for statistical machine translation
- a generative constituentcontext model for improved grammar induction
- a unified statistical model for the identification of english basenp
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