maximum entropy principle of jaynes constraints replace ensembles

... on the Maximum entropy framework, which gives the system the ability to integrate different sources of knowledge Our model has the advantage of successfully combining diverse sources of information ... Ratnaparkhi 1996 A maximum entropy model for part -of- speech tagging In Conference on Empirical Methods in Natural Language Processing A Berger, S Della Pietra, and V Della Pietra 1996 A maximum entropy ... WER of 23% and a DER of 15% Better performance is reached with the use of Kneser-Ney LM These results still under-perform those obtained by MaxEnt approach presented in Table When all sources of...

Ngày tải lên: 17/03/2014, 04:20

... example of a dialogue with speech acts In this paper, we propose a dialogue analysis model to determine both the speech acts of utterances and the discourse structure of a dialogue using maximum entropy ... Ratnaparkhi 1997 A Maximum Entropy Approach to Identifying Sentence Boundaries In Proceeding of the Fifth Conference on Applied Natural Language Processing, pages 16-19 Ristad, E 1996 Maximum Entropy Modeling ... Gl.i-l) as equation (8) in the case of using trigram P(Gi IUl, i-l,Gl, i-1) = P(Gi I FI, i - 1) = P(Gi I Fi - 2, Fi - l) 2.4 Maximum entropy model All terms in RHS of equation (11) are represented...

Ngày tải lên: 17/03/2014, 07:20

... the future since the choice of hyperparameters has a strong impact on the performance of the model References Ciprian Chelba and Alex Acero 2006 Adaptation of maximum entropy capitalizer: Little ... works, back- Domain Adaptation of Maximum Entropy Models Recently, a hierarchical Bayesian adaptation method was proposed that can be applied to a large family of discriminative learning tasks ... prediction of a word given its history into prediction of its class given the history, and prediction of the word given the history and its class : P (w|h) = P (C(w)|h)· P (w|h, C(w)) third and often...

Ngày tải lên: 23/03/2014, 16:20

... the Maximum Entropy principle (ME) Using the ME principle, we can combine information from a variety of sources into the same language model (Berger et al., 1996; Rosenfeld, 1996) The goal of ... ME principle is that, given a set of features (pieces of desired information contained in the sentence), a set of functions (measuring the contribution of each feature to the model) and a set of ... which is able to take advantage of the local information and at the same time allows for the use of the global properties of the sentence: the Whole Sentence Maximum Entropy model (WSME) (Rosenfeld,...

Ngày tải lên: 23/03/2014, 19:20

... large collection ~" of candidate features, and because of the limit of machine resources, we cannot expect to obtain all iS(f) estimated in real-life However, the Maximum Entropy Principle does not ... M a x i m u m Entropy M o d e l Learning of the Translation Rules The art of modeling with the maximum entropy method is to define an informative set of computationally feasible feature functions ... parser based on maximum entropy models In Proceedings of Second Conference On Empirical Methods in Natural Language Processing Jeffrey C Reynar and Adwait Ratnaparkhi 1997 A maximum entropy approach...

Ngày tải lên: 23/03/2014, 19:20

... @yes roomAcuwtroalA>4 E-1 ■: 4) Figure 4: Architecture of the maximum entropy model approach H CD >1 H It H U CD '0 p al ta g tn- A 14 Maximum Entropy Models As alternative to the source-channel ... Example of a sentence/concept mapping using maximum entropy ('i' denotes initial concepts, 'n' non-initial concepts resp.) Further, we assume that the decisions only de2 pend on a limited window of ... parameters is assumed Instead of maximizing the probability of the training data, we now maximize the probability of the training data times the prior probability of the model parameters: —1 pi+2...

Ngày tải lên: 31/03/2014, 20:20

Ngày tải lên: 24/04/2014, 17:20

... | x)) p (5) Entropy bị chặn 0, entropy mô hình không chắn nào, chặn log|Y|, entropy phân phối ngang toàn giá trị |Y| y Với định nghĩa này, sẵn sàng để biểu diễn nguyên lý cực đại entropy: Để ... pháp phân loại nghiên cứu luận văn mô hình cực đại entropy [Berger, 1996 Della Pietra, 1997] 1.2 Giới thiệu mô hình cực đại entropy Mô hình cực đại entropy phương pháp phân loại văn sử dụng rộng ... hình cực đại entropy Dựa tài liệu mô hình cực đại entropy [Adam L Berger & Stephen A Della Pietra & Vincent J Della Pietra, 1996] số nguồn khác Dưới sở lý thuyết mô hình cực đại entropy Về cách...

Ngày tải lên: 23/11/2012, 15:03

... )) p x 17 (5) Entropy bị chặn 0, entropy mô hình không chắn nào, chặn log|Y|, entropy phân phối ngang toàn giá trị |Y| y Với định nghĩa này, sẵn sàng để biểu diễn nguyên lý cực đại entropy: Để ... pháp phân loại nghiên cứu luận văn mô hình cực đại entropy [Berger, 1996 Della Pietra, 1997] 1.2 Giới thiệu mô hình cực đại entropy Mô hình cực đại entropy phương pháp phân loại văn sử dụng rộng ... hình cực đại entropy Dựa tài liệu mô hình cực đại entropy [Adam L Berger & Stephen A Della Pietra & Vincent J Della Pietra, 1996] số nguồn khác Dưới sở lý thuyết mô hình cực đại entropy Về cách...

Ngày tải lên: 25/04/2013, 11:56

... q(xs,ys) tỉ lệ pixel với màu xs skinness ys, tập liệu học Theo công thức nhân Larange mô hình đạt entropy cực đại, ta có: p(y|x) = ∏s∈Sq(ys|xs) (1) q ( x s | y s ) q ( y s) q ( xs ) đó: q(ys|xs)...

Ngày tải lên: 06/10/2013, 19:20

... sales started to slump at the end of the third year 17 září 2004 102 ze 412 By the middle of the fourth year, sales had dropped off to crisis levels The curve of sales, so far, looked like this: ... early days of the Digital Equipment Corporation The company started operations in a corner of one floor of an old mill building outside Boston, with about a dozen employees As a member of Digital's ... the entire floor full of people, productively employed This episode was one of the first for a company that has achieved one of 17 září 2004 112 ze 412 the finest records of sustained growth in...

Ngày tải lên: 17/10/2013, 18:20

... matrix of coefficients, or loadings, of x on the unobserved independent variables (ξ) Moreover, ε is a vector of errors of measurement of y, and δ is a vector of errors of measurement of x The ... y is a p x vector of measures of dependent variables, and x is a q x vector of measures of independent variables The parameters, Λy is a matrix of coefficients, or loadings, of y on unobserved ... define a unique function to measure the uncertainty of a collection of events, Shannon (1948) defines the entropy or the information of entropy of the distribution (discrete events) with the corresponding...

Ngày tải lên: 19/10/2013, 07:15

... | x)) p (5) Entropy bị chặn 0, Entropy mô hình không chắn nào, chặn log|Y|, Entropy phân phối ngang toàn giá trị |Y| y Với định nghĩa này, sẵn sàng để biểu diễn nguyên lý cực đại Entropy: Để ... Research, University of Edinburgh http://homepages.inf.ed.ac.uk/lzhang10/maxent_toolkit.html Bộ công cụ Maximum Entropy cung cấp tập hợp công cụ thư viện để xây dựng mô hình Entropy tối đa (Maxent) ... với cực đại Entropy H(p): p* arg max H ( p) với p € C (6) Điều thể p* luôn xác định; vậy, luôn tồn mô hình p* với cực đại Entropy tập ràng buộc C 2.2.4 Dạng tham số Từ nguyên lý Entropy cực đại...

Ngày tải lên: 10/12/2013, 14:29

... Animals % Of the First and Second Degrees of Sociability % Of the Third Degree of Sociability PART I % Of the Causes of our Mistakes The Origin of Property % Characteristics of Communism and of Property ... it is the Negation of Equality CHAPTER V PSYCHOLOGICAL EXPOSITION OF THE IDEA OF JUSTICE AND IN JUSTICE, AND A DETERMINATION OF THE PRINCIPLE OF GOVERNMENT AND OF RIGHT PART % Of the Moral Sense ... deposited with the first in the office of the Secretary of the Assembly, the guardian and guarantee, according to the constitution of 1852, of the principles of '89 On the 2d of June, the two processes...

Ngày tải lên: 15/02/2014, 09:20

... is used as a cut-off for the number of occurrences that a specific feature must appear So a cut-off of means that all features observed in the training data are used A cut-off of 32 means those ... 1.12052 1.11511 1.11242 Table 4: Number of features used according to different cut-off threshold In the second column of the table are shown the number of features used when only the English ... a window of words to the left of the source Features £ i h $ ge' " ¤ €y & Q ' Target context: As in (Berger et al., 1996) we consider a window of words to the left and to the right of the target...

Ngày tải lên: 20/02/2014, 18:20

... proportion of millionaires pay a smaller percentage of their income in taxes than a significant proportion of moderate-income taxpayers.” This basic source of unfairness is what this principle ... situation is not uncommon This situation is the result of decades of the tax system being tilted in favor of high-income households at the expense of the middle class Not only is this unfair, it can ... according to IRS data  Of the 400 highest income Americans, one out of every three in this group of the most financially fortunate Americans paid less than 15 percent of their income in income...

Ngày tải lên: 20/02/2014, 19:20

... choosing the model with maximum entropy (i.e the most uniform model) from a set of models that satisfy a certain set of constraints The constraints are that the expected value of each feature fi according ... Proceedings of the 37th Meeting of the ACL, pages 535-541, University of Maryland, MD This proof of GIS convergence without the correction feature is based on the ITS convergence proof by Berger ... 2000 Chunking with maximum entropy models In Proceedings of the CoNLL Workshop 2000, pages 139-141, Lisbon, Portugal Robert Malouf 2002 A comparison of algorithms for maximum entropy parameter...

Ngày tải lên: 22/02/2014, 02:20

... Meaning and Structure of the Principle of Legality in Criminal Law Supra -principle of Free Choice Principle of Legality Principle of Conduct Principle of Culpability Principle of Personal Liability ... four fundamental principles: (1) (2) (3) (4) The principle of legality The principle of conduct The principle of culpability The principle of personal liability The supra -principle of free choice ... imposition of criminal liability The rules of formation of the physical appearance of free choice are embodied in the second fundamental principle of criminal law theory, the principle of conduct,...

Ngày tải lên: 07/03/2014, 03:20

... maintaining a given rate of biomass production at a minimum of the total flux Insofar, the principle of maximal biomass production is a special case of the more general principle of flux minimization ... combinations of target fluxes where the values of each of the target fluxes was normal, increased by a factor of or decreased by a factor of 0.5 For these 81 different combinations of target fluxes, ... value Flux constraints arising from the availability of external metabolites The nonequilibrium state of biochemical reaction systems is maintained by a steady uptake of energy-rich, low-entropy...

Ngày tải lên: 07/03/2014, 15:20

... 2: Comparison of NA and PA with previous best results for Hindi Improvement in case of MST+MAXENT is greater than that of Malt One reason is because of more number of instances of multiple subjects/objects ... Table 1: Number of instances of multiple subjects or objects in the output of the state -of- the-art parsers for Hindi MST+MAXENT Czech In case of Czech, we replicated the experiments of Hall et al ... „ccof‟ We replicated the experiments of Ambati et al (2009) on test set (150 sentences) of Hindi and analyzed the outputs of Malt and MST+MaxEnt We consider this as the baseline In the output of...

Ngày tải lên: 07/03/2014, 22:20