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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 8 of 8 1 Feature-Rich Named Entity Recognition for Bulgarian Using Conditional Random Fields ... Georgiev, Georgi; Nakov, Preslav; Ganchev, Kuzman. - : arXiv, 2021 BASE Show details 2 Controlling Complexity in Part-of-Speech Induction Graça, João V; Ganchev, Kuzman; Coheur, Luísa; Pereira, Fernando; Taskar, Ben In: Departmental Papers (CIS) (2011) Abstract: We consider the problem of fully unsupervised learning of grammatical (part-of-speech) categories from unlabeled text. The standard maximum-likelihood hidden Markov model for this task performs poorly, because of its weak inductive bias and large model capacity. We address this problem by refining the model and modifying the learning objective to control its capacity via parametric and non-parametric constraints. Our approach enforces word-category association sparsity, adds morphological and orthographic features, and eliminates hard-to-estimate parameters for rare words. We develop an efficient learning algorithm that is not much more computationally intensive than standard training. We also provide an open-source implementation of the algorithm. Our experiments on five diverse languages (Bulgarian, Danish, English, Portuguese, Spanish) achieve significant improvements compared with previous methods for the same task. Keyword: Computer Sciences URL: https://repository.upenn.edu/cis_papers/493 https://repository.upenn.edu/cgi/viewcontent.cgi?article=1531&context=cis_papers BASE Hide details 3 Posterior Regularization for Learning with Side Information and Weak Supervision Ganchev, Kuzman In: Publicly Accessible Penn Dissertations (2010) BASE Show details 4 Posterior regularization for learning with side information and weak supervision Ganchev, Kuzman In: Dissertations available from ProQuest (2010) BASE Show details 5 Learning Tractable Word Alignment Models with Complex Constraints Graça, João V.; Ganchev, Kuzman; Taskar, Ben In: Lab Papers (GRASP) (2010) BASE Show details 6 PostCat - posterior constrained alignment toolkit Ganchev, Kuzman; Graça, João; Taskar, Ben In: The Prague bulletin of mathematical linguistics. - Praha : Univ. (2009) 91, 27-36 BLLDB OLC Linguistik Show details 7 Dependency Grammar Induction via Bitext Projection Constraints Ganchev, Kuzman; Gillenwater, Jennifer; Taskar, Ben In: Lab Papers (GRASP) (2009) BASE Show details 8 Penn/Umass/CHOP Biocreative II systems Ganchev, Kuzman; Crammer, Koby; Pereira, Fernando... In: Andrew McCallum (2007) BASE Show details

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