a generative constituentcontext model for improved grammar induction

Ngày tải lên: 17/03/2014, 08:20

Ngày tải lên: 03/01/2014, 19:37

... 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 case basis 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 similarly be investigated by suitably amending the appropriate input variables. Several what-if scenarios can be investigated (or simulated) to determine breakeven...

Ngày tải lên: 15/02/2014, 13:20

... outlined above by introducing a very fundamental data structure called Initiative (Fig. 3). An initiative is a generalization of any form of action that has a defined start and end date and is unde rtaken ... rtaken to reach a goal. Therefore, an initiative may be a program, a project, a sub-project, a pro ject phase, a work package, an activity or a task (indicated by the inheritance relationship between ... Their feasibility, profitability, and strategic impact are analyzed so that a final decision can be made regard- ing their implementation (Idea Evaluation). This phase ends with a formal go/no-go...

Ngày tải lên: 18/02/2014, 07:20

... 4: Manual Evaluations Here, we manually evaluate quality of summaries, a common DUC task. Human annotators are given two sets of summary text for each document set, generated from two approaches: ... this paper. In this paper, we present a novel approach that formulates MDS as a prediction problem based on a two-step hybrid model: a generative model for hierarchical topic discovery and a regression model ... 12 Overall 24 66 2 Table 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...

Ngày tải lên: 20/02/2014, 04:20

... represented by a bag-of-word. Among the words, there is a topic term Avatar (t 1 ) occurring twice, i.e. Avatar in A and Avatar in C, and two senti- ment words comfortable (o 1 ) and favorite (o 2 ) ... 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 1373 fortable (o 1 ) are also regarded as relevant opi- nion mistakenly, creating a false positive. In re- ality comfortable (o 1 ) describes “the seats...

Ngày tải lên: 20/02/2014, 04:20

... needs a word dictionary and takes long time for searching many character combinations. 61 4.2 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...

Ngày tải lên: 20/02/2014, 12:20

... 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 ... 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 ... 515–522, Ann Arbor, June 2005. c 2005 Association for Computational Linguistics A Phonotactic Language Model for Spoken Language Identification Haizhou Li and Bin Ma Institute for Infocomm Research...

Ngày tải lên: 20/02/2014, 15:20

... paper, we present a block-based model for statis- tical machine translation. A block is a pair of phrases which are translations of each other. For example, Fig. 1 shows an Arabic-English translation ... set of candidates. This computational advantage is the main reason that we adopt the local model in this paper. 3.3 Global versus Local Models Both 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-based Unigram Model for Statistical Machine Translation. In Companian Vol. of the Joint HLT and NAACL Confer- ence...

Ngày tải lên: 20/02/2014, 15:20

... such as augmented transition networks (ATNs), network-based semantic grammars, case frame grammars, pattern matching and determin- istic parsers. Recently, Shriberg et al. (1992) and Bear et ... 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 ... 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...

Ngày tải lên: 20/02/2014, 21:20

... Johnson and Paul M. Postal. Are Pair Grammar. Princeton University Press, 1980. [4] Ronald Kaplan and Joan Bresnan. Lexical- functional grammar, a formal system for grammatical representation. ... suitable for building computational relational grammars. A lexicalized SFG is sim- ply a collection of stratified feature graphs (S- graphs), each of which is anchored to a lexical item, analogous ... handle relational grammar analyses. We first in- troduce the key aspects of SFG and a lexicalized, graph-based variant of the framework suitable for implementing relational grammars. We then...

Ngày tải lên: 20/02/2014, 21:20

... serve as a three-dimensional atlas of the anatomy ger- mane to aesthetic surgery of the face. Although these models can be viewed from any angle and made selectively transparent to illustrate anatomical ... photographs enhanced in Adobe Photoshop 7.0 and materials de- signed in Maya. R ESULTS A virtual reality model of surgical superficial facial 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....

Ngày tải lên: 07/03/2014, 17:20

... propose a cascaded linear model for joint Chinese word segmentation and part- of-speech tagging. With a character-based perceptron as the core, combined with real- valued features such as language models, ... at the same time, we expand boundary tags to include POS information by attaching a POS to the tail of a boundary tag as a postfix following Ng and Low (2004). As each tag is now composed of a ... ap- proach of discriminative models treats segmentation as a labelling problem by assigning each character a boundary tag (Xue and Shen, 2003), Joint S&T can be conducted in a labelling fashion...

Ngày tải lên: 08/03/2014, 01:20

... important subtask for many natural language processing applications, such as partial parsing, information retrieval and machine translation. A baseNP is a simple noun phrase that does not contain other ... pp.218-224. COLING-ACL’98 Lance A. Ramshaw and Michael P. Marcus ( In Press). Text chunking using transformation-based learning. In Natural Language Processing Using Very large Corpora. Kluwer. Originally appeared in ... Treebank II, and the definition of baseNP is the same as Ramshaw’s, Table 1 summarizes the average performance on both baseNP tagging and POS tagging, each section of the whole Penn Treebank was...

Ngày tải lên: 08/03/2014, 05:20

... score for summary quality was not. For the Mitre data, the differences in score between the Concat and Sent systems for grammati- cality and summary quality were statistically signif- icant at the ... text to assist aphasic readers. In Proceedings of the AAAI-98 Workshop on Integrating Artificial Intelligence and Assistive Technology. R. Chandrasekar, Christy Doran, and Srinivas Bangalore. 1996. ... parser achieves an f-score of for EDU identification, for identifying hierarchical spans, for nuclearity identification and for relation tagging. coherence was not. The score differences for gram- maticality,...

Ngày tải lên: 08/03/2014, 07:20

... we averaged the data over the study period rather than using panel-data analytic techniques. As more years of data on individual vehicles become available, it may be advan- tageous to adopt a ... estimated odometer reading by age, annual mileage by age, esti- mated annual down days by age, and estimated annual parts and labor cost by age. VaRooM also required economic parameters as inputs—specifically, ... 365 days per year) of data when computing averages for a vehicle. For example, if a vehicle had 485 days of EDA and usage data, the average repair cost and usage figures included only one year...

Ngày tải lên: 15/03/2014, 21:20

... Association for Computational Linguistics A Tree Transducer Model for Synchronous Tree-Adjoining Grammars Andreas Maletti Universitat Rovira i Virgili Avinguda de Catalunya 25, 43002 Tarragona, Spain. andreas.maletti@urv.cat Abstract A ... a special marker. Traditionally, the root label A of an auxiliary tree is replaced by A ∅ once adjoined. Since we assume that there are no auxiliary trees with such a root label, no further adjunction ... (2006) we assume that all adjunctions are mandatory; i.e., if an aux- iliary tree can be adjoined, then we need to make an adjunction. Thus, a derivation starting from an initial tree to a derived...

Ngày tải lên: 17/03/2014, 00:20

Ngày tải lên: 17/03/2014, 04:20

Ngày tải lên: 17/03/2014, 09:20

Ngày tải lên: 17/03/2014, 09:20