statistical decisiontree models for parsing

... that have been proposed for dependency parsing (McDonald and Nivre, 2007) Among them, graph-based dependency parsing models have achieved state-of-the-art performance for a wide range of lan-guages ... 1Utilizing Dependency Language Models for Graph-based DependencyParsing Models Wenliang Chen, Min Zhang∗ , and Haizhou Li Human Language Technology, Institute for Infocomm Research, Singapore ... fea-tures consistently outperformed the Baselines For the basic models (MST1/2), we obtained absolute improvements of 0.94 and 0.63 points respectively For the enhanced models (MSTB1/2), we found

Ngày tải lên: 23/03/2014, 14:20

... Therefore, with the AT&T database, eight images were used for training and two for testing during each run When using the Essex95 database, sixteen images were used for training and four for ... been used for a signifi-cant period for law enforcement and secure access Both fin-gerprint and iris recognition systems are proven as reliable techniques; however, the method of capture for both ... testing during each run For the FERET database, four images per individual were used for training, with the remaining image being used for testing One HMM was trained for each individual in the

Ngày tải lên: 22/06/2014, 06:20

... PDF models for LR detection in transform domain watermarking.Although our numerical experiments are done for DWT and DFT domains, thesemodels are also applicable in other transform domains, for ... Trang 1STATISTICAL MODELS FOR DIGITALWATERMARKING NG TEK MING NATIONAL UNIVERSITY OF SINGAPORE 2007 Trang 2STATISTICAL MODELS FOR DIGITALWATERMARKING NG TEK MING ... explore using a Laplacian PDF for LR detection inDWT domain Decision rule and closed-form decision threshold are derivedfor all proposed models New estimators are introduced for parameters ofthe generalized

Ngày tải lên: 14/09/2015, 12:45

... contained cofactors by the method 1 For QTL mapping, one by one of the 10,000 SNPs was used to fit the statistical models For JCIM model 1 and 2, cofactor selection was performed prior to QTL map-ping ... dete-tion for the JCIM models according to the aforemendete-tioned method All the settings for the examined paraments were sum-marized in Table 1 If not stated differently, all analyses were performed ... Moreover, for the difference between the estimated QTL effects by the statistical models and its relevant true (simulated) effects, the statistical model which had higher power of QTL detection (for

Ngày tải lên: 22/05/2020, 03:50

... metrics for each segment Trang 2020 The six business models for copyright infringement – A data driven study of websites considered to be infringing copyright3.4 Sources of Revenue We looked for ... analysis of the market for copyright infringement is based on a statistically significant representation of these sites This research provides industry and policymakers with information about the ... obtained Figure 1-1: Six major copyright infringement business models identified in this study Trang 44 The six business models for copyright infringement – A data driven study of websites considered

Ngày tải lên: 06/03/2014, 21:20

... Association for Computational Linguistics, pages 742–751, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics Lexically-Triggered Hidden Markov Models for Clinical ... Cherry Institute for Information Technology National Research Council Canada {Svetlana.Kiritchenko,Colin.Cherry}@nrc-cnrc.gc.ca Abstract The automatic coding of clinical documents is an important task for ... interesting challenges for natural language processing. Con- ventionally, most clinical documentation, such as doctor’s notes, discharge summaries and referrals, are written in a free-text form. This narrative form is

Ngày tải lên: 07/03/2014, 22:20

... Lemmas can be employed in two ways: only for word selection, as a frequency measure, or also for word representation, as a mapping for common words In the former, we preserve in-flected variants ... outperform all the uni-form representations (words, lemmas and POS) with statistically significant BLEU and METEOR improvements The fdf experiment involves the use of doc-ument frequency for the ... During the translation process, words are mapped to their class just before querying the hybrid LM, therefore translation models can be trained on plain un-tagged data As exemplified in Table

Ngày tải lên: 08/03/2014, 21:20

... In the current research, we adopt the graph-based parsing models for their state-of-the-art performance in a variety of languages.3 Graph-based models view the problem as finding the highest scoring ... fea-tures for enhancing the baseline parsing models, which are shown in Table 2 The type of the TP is conjoined with the related words and POS tags, such that the QG-enhanced parsing models can ... punctuation We adopt Dan Bikel’s randomized parsing evaluation comparator for significance test (Noreen, 1989).7 For all models used in current work (POS tagging and parsing), we adopt averaged perceptron

Ngày tải lên: 16/03/2014, 19:20

... typical models of producing - processing fruits, vegetable, seaweed and alga, and especially marine economic models The development of Socioeconomic in the Diem Dien in the direction of these models ... stages, new river routes are built for the service of watering, draining away and traffic, and so forth Besides, Sing and Gu rivers are important sources of water for agricultural development The ... therefore, its economic effect and value of merchandising product are low The potential of water surface, agricultural land have not been used effectively yet It lacks suitable forms economic models

Ngày tải lên: 22/03/2014, 12:20

... of all credit risk models. Trang 4Framework for an Internal-Models Capital Charge This section describes a possible framework for an internal-models regulatory capital charge for credit risk exposures ... institutions have made strides in developing statistical models for other sources of risk, most notably credit risk Individual banks have developed proprietary models to capture potential credit-related ... the models described in this section are those that are usually applied to banks’ wholesale and middle-market commercial lending portfolios The models used for some other types of credits—for

Ngày tải lên: 22/03/2014, 18:20

... included for regularity in the depth direction and also to vanish for a natural rigid transformation The following reasoning shows that (3) is not a suitable regularization for selecting rigid transformations ... rigid transformation is equivalent to one which is both conformal (angle preserving) and isometric (areapreserving) [7] Some authors relax rigidity by constraining transformations to beconformal ... ther-modynamic entropy for information theory has suggested mutual information as animage similarity measure [24] [40], and a heuristically based normalized mutual in-formation has been found

Ngày tải lên: 22/03/2014, 22:20

... (Dougherty 2001) For example, a large process flow map in a conference room can be the focal point for group discussion and the vehicle for moving towards shared mental models Process models can provide ... existing models) It helps identify purposes with a paucity of supporting models in the literature, thereby uncovering opportunities for further research We feel that it is beneficial for uncov-ering ... process models as an organizing structure for knowledge management, modeling in cases of uncertainty and ambiguity, and determining the optimum amount of process prescription and structure for an

Ngày tải lên: 23/03/2014, 04:20

... used for data streams: for in-stance, the presence of time stamps is required for query completeness The paper is organized as follows In the next sec-tion, we survey several data models for sequences ... situation is more complex for multi-ple data streams, since these need to be merged into a single stream before UDAs can be applied For in-stance, the operator used in SQL:1999 for computing the union, ... Nevertheless, database query languages were designed for persistent data residing on disks, rather than for transient data flowing through the wires: therefore their suitability to the new task need to

Ngày tải lên: 23/03/2014, 12:20

... some important models here Beyond the models for parsing discussed in section 4, together with motivations for using or not in our work, another important model for syn-tactic parsing has been ... the performance of the parsing model The structure is described in the next sec-tion, the performance in the evaluation section 4.2 Structure of the Model Lexicalized models for syntactic parsing ... effective for feature selection at train-ing time, which is a very good point when dealtrain-ing with noisy data and big set of features Trang 44 Models for Parsing TreesThe models used in this work for

Ngày tải lên: 24/03/2014, 03:20

... committee responsible for the report were chosen for their special competences and with regard for appropriate balance Support for this project was provided by the Agency for Health Care Research ... BlueShield Association, Burroughs Wellcome Fund, Centers for Disease Control and Prevention, Centers for Medicare and Medicaid Services (formerly HCFA), Department of Veterans Affairs, Doris Duke ... Center, Los Angeles, California Patricia Salber, Medical Director for Managed Care Health Care Initiative, General Motors Co., The Permanente Company, Larkspur, California Lewis Sandy, Executive

Ngày tải lên: 29/03/2014, 13:20

... 2010) It is not straightforward to determine which data or model (in case we have several source domain models) will perform best on a new (un-known) target domain Therefore, an important is-sue ... data that is relevant for the new domain? If so: • Which similarity measure is good for parsing? • How does it compare to human-annotated data? • Is the measure also useful for other languages ... by perplexity scoring, but found the Language Models too small to be useful in our setting. Trang 3sidered to be relevant for the task at hand Forparsing, these might be words, characters, n-grams

Ngày tải lên: 30/03/2014, 21:20

... 18.5 Infinitesimal Deformations of Poisson Structures 137 18.6 Obstructions to Formal Deformations 138 VIII Deformations of Algebras of Functions 141 19 Algebraic Deformation Theory 141 ... 1Geometric Models for Noncommutative AlgebrasAna Cannas da Silva1Alan Weinstein2University of California at Berkeley Trang 21.1 Universal Enveloping Algebras 1 1.2 Lie Algebra Deformations ... that{f, h} = 0, for all h ∈ C∞(M ) (For the trivial Poisson structure {·, ·} = 0, this isall of C∞(M ).) See Section 5.1 for a geometric description of these cohomology spaces See tion 4.5 for their

Ngày tải lên: 31/03/2014, 16:14

... Our primary reason for this is that the Viterbi parsing algorithm of the HMMs essentially performs a dynamic time warp of the input signal In fact, part of the appeal of HMMs for gesture recognition ... This method of assessing  is used as the known value for training examples, and for the ªground truthº in evaluating testing performance For this experi-ment, both the training and the testing ... about 4 The confusion matrices for the HMM and PHMM models are shown in Fig 6 The difference in performance between the HMM and PHMM is due to the fact that the HMM models the systematic variation

Ngày tải lên: 24/04/2014, 13:16

... intractable Trang 30For many probabilistic models of interest, exact inference is not computationally feasible This occurs for two (main) reasons: distributions may have complicated forms (non-linearities ... estimation and forecasting. Technical Report TR-CIS-94-20, Center for Intelligent Systems, Technion, Israel Institute for Technology, Haifa, Israel. Bell, A J and Sejnowski, T J (1995) An information-maximization ... Model for Generative ModelsGaussian Factor Analysis (PCA) Mixture of Factor Analyzers Mixture of G aussians (VQ) C ooperative V ector Q Factorial HMM HMM Mixture of HMMs Switching State-space Models

Ngày tải lên: 24/04/2014, 13:20

... expression The need for real-time cability thus demands for high performance and efficiency of applications forface recognition appli-This paper describes a model-based approach for the interpretation ... Appearance Models, in its basic form is scribed in Chapter 2 Because of the need for real-time applications using this Trang 11technology, variations on the basic form aimed at increasing the performanceand ... AppearanceModels aimed at increasing the performance and the computational speed ofActive Appearance Models Trang 44Trang 5This paper was written as part of the master Business Mathematics andInformatics

Ngày tải lên: 24/04/2014, 13:38