... adopting the standard machinelearning approach, outperforming them by as much as 4–7% on the three data sets for one of the performance metrics 3.1 Selecting Coreference Systems A learning- based coreference ... sample selection and error-driven pruning formachinelearning of coreference rules In Proc of EMNLP, pages 55–62 V Ng and C Cardie 2002b Improving machinelearning approaches to coreference resolution ... the ACL, pages 104–111 J R Quinlan 1993 C4.5: Programs forMachineLearning Morgan Kaufmann W M Soon, H T Ng, and D Lim 2001 A machinelearning approach to coreference resolution of noun phrases...
... Preface MachineLearningfor Hackers To explain the perspective from which this book was written, it will be helpful to define the terms machinelearning and hackers What is machine learning? ... R forMachineLearning Downloading and Installing R IDEs and Text Editors Loading and Installing R Packages R Basics forMachineLearning Further Reading on R 12 ... www.it-ebooks.info MachineLearningfor Hackers Drew Conway and John Myles White Beijing • Cambridge • Farnham • Köln • Sebastopol • Tokyo www.it-ebooks.info MachineLearningfor Hackers by Drew...
... space model for latent representation learning The major differences are, we adopt Restricted Boltzmann Machine (RBM) for latent representation learning, and additionally, we perform sentiment ... very little work which uses machinelearning to address the problem Recently, there is increasing research interest in the application of machinelearning methods for business analytics (Abbasi ... intend to fill the gap by proposing a model for estimating daily free app downloads, which complements Garg and Telang (2012) 1.3 MACHINELEARNINGMachinelearning is a highly interdisciplinary field...
... References • Statistical MachineLearning Lafferty, Liu and Wasserman (2012) • The Elements of Statistical Learning Hastie, Tibshirani and Friedman (2009) (www-stat.stanford.edu/˜tibs/ElemStatLearn/) ... and Friedman (2009) (www-stat.stanford.edu/˜tibs/ElemStatLearn/) • Pattern Recognition and MachineLearning Bishop (2009) Outline Regression predicting Y from X Structure and Sparsity finding ... with weak assumptions Latent Variable Models making use of hidden variables Introduction • Machinelearning is statistics with a focus on prediction, scalability and high dimensional problems...
... then predict: Y(i) = mh,(i) (Xi ) Repeat this for all observations The cross-validation estimate of risk is: R(h) = n n (Yi − Y(i) )2 i=1 Shortcut formula: R(h) = n where Lii = Kh (Xi , Xi )/ ... has dimension p > For example, just use K (x, y) = e− /2 x−y However, this is hard to interpret and is subject to the curse of dimensionality This means that the statistical performance and the ... = M(X ) + λV (X ) a.e., for some V ∈ ∂ |||M|||∗ 41 CRAM Backfitting Algorithm (Penalty 1) Input: Data (Xi , Yi ), regularization parameter λ Iterate until convergence: For each j = 1, , p:...
... has a preference for covering frequent n-grams before covering infrequent n-grams The VG method is depicted in Figure Figure shows the learning curves for both jHier and jSyntax for VG selection ... vector machine active learning with applications to text classification Journal of MachineLearning Research (JMLR), 2:45–66 David Vickrey, Oscar Kipersztok, and Daphne Koller 2010 An active learning ... estimate the time required for POS annotating Kapoor et al (2007) assign costs for AL based on message length for a voicemail classification task In contrast, we show for SMT that annotation times...
... Zhu 2002 Bleu: a Method for Automatic Evaluation of Machine Translation In Proc of ACL’02, pages 311– 318 J Turner and E Charniak 2005 Supervised and Unsupervised Learningfor Sentence Compression ... method to unsupervised learning to overcome the lack of training data However their model also has the same problem McDonald (McDonald, 2006) independently proposed a new machinelearning approach ... create a compression forest as Knight and Marcu did We select the tree assigned the highest probability from the forest Features in the maximum entropy model are defined for a tree node and its...
... Processing architecture for the machinelearning-based method 4.2 Cast3LB Function Tagging For the task of Cast3LB function tag assignment we experimented with three generic machinelearning algorithms: ... TiMBL (Daelemans et al., 2004) for MemoryBased Learning, the MaxEnt Toolkit (Le, 2004) for Maximum Entropy and LIBSVM (Chang and Lin, 2001) for Support Vector Machines For TiMBL we used k nearest ... machine- learning- based method avoids some sparse data problems and allows for more control over Cast3LB tag assignment We have found that the SVM algorithm outperforms the other two machine learning...
... through semi-supervised learning There are two main reasons for this improvement: Firstly, the selection step provides important feedback for the system The confidence estimation, for example, discards ... relevant for translating the new data are reinforced The probability distribution over the phrase pairs thus gets more focused on the (reliable) parts which are relevant for the test data For an ... Callison-Burch 2002 Co-training for statistical machine translation Master’s thesis, School of Informatics, University of Edinburgh A Fraser and D Marcu 2006 Semi-supervised training for statistical word...
... resource for measuring the reliability of automatic evaluation metrics In this paper, we show that they are also informative in developing better metrics MT Evaluation with MachineLearning A ... argument structures for certain syntactic categories Empirical Studies In these studies, the learning models used for both classification and regression are support vector machines (SVM) with ... many criteria Machinelearning affords a unified framework to compose these criteria into a single metric In this paper, we have demonstrated the viability of a regression approach to learning the...
... Annotation forMachineLearning James Pustejovsky and Amber Stubbs Beijing • Cambridge • Farnham • Köln • Sebastopol • Tokyo www.it-ebooks.info Natural Language Annotation forMachineLearning ... Annotation forMachineLearning More specifically, this book details the multi-stage process for building your own annotated natural language dataset (known as a corpus) in order to train machinelearning ... provides case studies for four different annotation tasks These tasks are examined in detail to provide context for the reader and help provide a foundation for their own machinelearning goals Additionally,...
... percent Best performance on a test set for each model is highlighted in bold curacies, in percent Best performance on a test set for each model is highlighted in bold does not perform to the state-of-the-art, ... how machineo learning techniques for sentiment classification can be topic dependent However, that study focused on a three-way classification (positive, negative and neutral) In this paper, for ... the bestperforming settings for the Na¨ve Bayes classifier ı was a window context of 130 tokens taken from the largest training set of 22,000 articles Similarly, the best performance for the SVM...
... Osborne 2003b Cotraining for statistical machine translation In Proceedings of the 6th Annual CLUK Research Colloquium Chris Callison-burch 2003 Active learningfor statistical machine translation ... d=1 8: Monitor the performance on the test set 9: end for 3.3 Disagreement among the candidate translations of a particular entry is evidence for the difficulty of that entry for different translation ... 2: The performance of different sentence selection strategies as the iteration of AL loop goes on for three translation tasks Plots show the performance of sentence selection methods for single...
... 1998 M E Califf and R J Mooney 2004 Bottom-Up Relational Learning of Pattern Matching Rules for Information Extraction Journal of MachineLearning Research, MIT Press W Drozdzynski, H.-U.Krieger, ... patterns for projections We propose a rule representation that supports this strategy Therefore, our learning approach is seed-driven and bottom-up Here we use dependency trees as input for pattern ... Person_Out, Position, Organisation> In the following tables, we use PI for Person_In, PO for Person_Out, POS for Position and ORG for Organisation In our experiments, we attempt to investigate the...
... 36.8 33.9 26.1 3.8 7.7 1.3 20.5 :before 72(facilities) :before 94(building) :before 83(language) Speaker's role '-gozaimasu'(poliie) :before 16(situation) :before 34(statement) '-de'(case particle) ... 'ga(v.)' case, except for a few attributes Conclusion and Future Work This paper proposed a m e t h o d for resolving the ellipsis that appear in Japanese dialogues A machine- learning algorithm ... positional information, i.e., search space of morphemes from the target predicate Positional information can be one of five kinds: before, at the latest, here, next, and afterward For example,...
... important background for our work, we note where the linguistic information on the comma for the Basque language was formalised This information was extracted after analysing the theories of some ... Related work Machinelearning techniques have been applied in many fields and for many purposes, but we have found only one reference in the literature related to the use of machinelearning techniques ... report quite good results using machinelearning techniques Car reras and Màrquez (2003) get one of the best per formances in this task (84.36% in test) There fore, we decided to adopt this...
... Active learningfor IMT The aim of the IMT framework is to obtain highquality translations while minimizing the required human effort Despite the fact that IMT may reduce the required effort with ... designed for its use in batch learning scenarios For such models, the incremental version of the EM algorithm (Neal and Hinton, 1999) is applied A detailed description of the update algorithm for ... system is equal to SCS but it not perform any SMT retraining Results in Figure show a consistent reduction in required user effort when using AL For a given human effort the use of AL methods allowed...
... summer schools He is interested in Bayesian machine learning, computational approaches to sensorimotor control, and applications of machinelearning to bioinformatics Zoubin Ghahramani Gatsby Computational ... Ghahramani is a Reader in MachineLearning at the Gatsby Unit in London, and an Associate Research Professor at CALD at CMU He has given tutorials at NIPS, ICANN, the MachineLearning Summer School ... Discriminative Modelling [20 minutes] o o Bayes Point Machines vs Support Vector Machines o Myth: Bayesian methods = Generative models Bayesian Neural Networks From Parametric to Nonparametric Bayes...
... gathered on an evaluation test bed simulating networktraffic similar to that seen between an Air Force base (INSIDE network) and the Internet (OUTSIDE network) Nearly seven weeks of training data ... 4.1 Network Anomaly Data: Here we give brief description of each sub data set of NAD The data set is extracted from MIT-DARPA network traffic, each data sub set contain artificial neural network- based ... data set Network Anomaly Data (NAD) The NAD contains three sub data sets They are 1) NAD 98 2) NAD 99 3) NAD 00, obtained by attribute extracting the 1998, 1999, and 2000 MIT-DARPA network traffic...