Xem 1-20 trên 57 kết quả Marginal models
  • There is a bustling atmosphere in the headquarters of the globally active Confusio Corporation. Everything seems to be just fine. Yet, there is a bad atmosphere in the precious wood-paneled conference room of the managing director Paul Peppy. Peppy has drummed together his top managers from all important branch offices; a hard and uncompromising crackdown is urgently required! Concerning the topic of the crisis summit, he has intentionally left the participants in the dark.

    pdf200p namde02 09-04-2013 23 13   Download

  • This emphasis on the spectacular and exotic, consistent with an oppositional or marginal view of the consumer, is often also emphasised in academic writing on counterfeiting. Consumers of counterfeits are often represented through anecdotal narratives which serve as a proxy for deeper understanding of consumer motivations. For example, Lasica (2005) illustrates his work with case studies which potentially confuse everyday users with vanguard consumers.

    pdf10p nhacchovina 22-03-2013 27 4   Download

  • This work investigates supervised word alignment methods that exploit inversion transduction grammar (ITG) constraints. We consider maximum margin and conditional likelihood objectives, including the presentation of a new normal form grammar for canonicalizing derivations. Even for non-ITG sentence pairs, we show that it is possible learn ITG alignment models by simple relaxations of structured discriminative learning objectives. For efficiency, we describe a set of pruning techniques that together allow us to align sentences two orders of magnitude faster than naive bitext CKY parsing.

    pdf9p hongphan_1 14-04-2013 14 4   Download

  • We present a probabilistic topic model for jointly identifying properties and attributes of social media review snippets. Our model simultaneously learns a set of properties of a product and captures aggregate user sentiments towards these properties. This approach directly enables discovery of highly rated or inconsistent properties of a product. Our model admits an efficient variational meanfield inference algorithm which can be parallelized and run on large snippet collections.

    pdf9p hongdo_1 12-04-2013 10 2   Download

  • We consider a new subproblem of unsupervised parsing from raw text, unsupervised partial parsing—the unsupervised version of text chunking. We show that addressing this task directly, using probabilistic finite-state methods, produces better results than relying on the local predictions of a current best unsupervised parser, Seginer’s (2007) CCL. These finite-state models are combined in a cascade to produce more general (full-sentence) constituent structures; doing so outperforms CCL by a wide margin in unlabeled PARSEVAL scores for English, German and Chinese. ...

    pdf10p hongdo_1 12-04-2013 30 2   Download

  • We investigate systems that identify opinion expressions and assigns polarities to the extracted expressions. In particular, we demonstrate the benefit of integrating opinion extraction and polarity classification into a joint model using features reflecting the global polarity structure. The model is trained using large-margin structured prediction methods.

    pdf6p hongdo_1 12-04-2013 14 2   Download

  • In this paper, we first demonstrate the interest of the Loopy Belief Propagation algorithm to train and use a simple alignment model where the expected marginal values needed for an efficient EM-training are not easily computable. We then improve this model with a distortion model based on structure conservation.

    pdf9p bunthai_1 06-05-2013 14 2   Download

  • In this paper, we present a supervised learning approach to training submodular scoring functions for extractive multidocument summarization. By taking a structured prediction approach, we provide a large-margin method that directly optimizes a convex relaxation of the desired performance measure.

    pdf10p bunthai_1 06-05-2013 12 2   Download

  • We address the problem of learning the mapping between words and their possible pronunciations in terms of sub-word units. Most previous approaches have involved generative modeling of the distribution of pronunciations, usually trained to maximize likelihood. We propose a discriminative, feature-rich approach using large-margin learning. This approach allows us to optimize an objective closely related to a discriminative task, to incorporate a large number of complex features, and still do inference efficiently. ...

    pdf10p nghetay_1 07-04-2013 23 1   Download

  • Sometimes it is necessary to write a special letter for a special situation in life.

    pdf257p maybimaybu 03-09-2013 78 48   Download

  • This book grows out of 20 years’ banking research and training of bankers in Europe, the Americas, Africa and Asia. As deregulation and competition are reducing margins around the world, the need for knowledge on Asset and Liability Management, the control of bank’s profit and risks, becomes an absolute necessity for any banker in charge of a profit centre, central bankers in charge of bank supervision, and banks’ auditors, consultants or lawyers.

    pdf171p vigro23 28-08-2012 87 46   Download

  • Whether you work for a Fortune 500 company, a small company, a government agency, or a non-profit organization, if you're reading this introduction is that you can use Microsoft Excel at work your daily. Your job may be related to the synthesis, reporting, and analysis of data. It may also be related to the construction of analytical models to help employers tangloi your margins, reduce costs, manage operations more efficiently.

    pdf677p augi17 16-02-2012 100 38   Download

  • Trong CSS, box model (mô hình hộp) mô tả cách mà CSS định dạng khối không gian bao quanh một thành phần. Nó bao gồm padding (vùng đệm), border (viền) và margin (canh lề) và các tùy chọn. Hình bên dưới mô tả cấu trúc minh họa mô hình hộp cho một thành phần web. Trong CSS, box model (mô hình hộp) mô tả cách mà CSS định dạng khối không gian bao quanh một thành phần.

    pdf6p maicon24 27-07-2010 98 17   Download

  • Nowadays, huge amount of multimedia data are being constantly generated in various forms from various places around the world. With ever increasing complexity and variability of multimedia data, traditional rule-based approaches where humans have to discover the domain knowledge and encode it into a set of programming rules are too costly and incompetent for analyzing the contents, and gaining the intelligence of this glut of multimedia data. The challenges in data complexity and variability have led to revolutions in machine learning techniques.

    pdf0p hotmoingay 03-01-2013 27 5   Download

  • In the European Union, the existing insurance and reinsurance directives do not contain any provisions that place reliance on credit rating agencies. There is no explicit credit risk charge for the solvency margin in the Solvency I framework. The solvency margin in the Solvency I framework is not the sum of different capital charges related to different risks, but a single capital charge calibrated to reflect all the risks an insurance company faces.

    pdf114p enterroi 01-02-2013 16 4   Download

  • In the next section we outline some theoretical and empirical results about the relationships between monetary policy, the ináation target of monetary authorities, the level of this target perceived by the public and the long term interest rates dynamics. In section 3, we present the works of Kozicki and Tinsley (1998, 2001a, 2001b) and we establish the interest of this model in our framework.

    pdf38p taisaovanchuavo 23-01-2013 18 4   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh Original cung cấp cho các bạn kiến thức về sinh học đề tài:Phenotypic plasticity of body pigmentation in Drosophila: Computing marginal posterior densities of genetic parameters of a multiple trait animal model using Laplace approximation or Gibbs sampling...

    pdf24p toshiba19 09-11-2011 19 3   Download

  • An investor who has sold stock short in anticipation of a price decline can limit a possible loss by purchasing call options. Remember that shorting stock requires a margin account and margin calls may force you to liquidate your position prematurely. Although a call option may be used to offset a short stock position's upside risk, it does not protect the option holder against additional margin calls or premature liquidation of the short stock position. Assume you sold short 100 shares of XYZ stock at $40 per share.

    pdf27p quaivattim 04-12-2012 23 3   Download

  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:"Modèles explicatif et marginal de la stratégie de martelage d’une parcelle irrégulière"

    pdf10p toshiba5 19-09-2011 17 2   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: A marginal quasi-likelihood approach to the analysis of Poisson variables with generalized linear mixed models

    pdf0p toshiba20 12-11-2011 21 2   Download

Đồng bộ tài khoản