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With the advent of semantic web, various tools and techniques have been introduced for presenting and organizing knowledge. Concept hierarchies are one such technique which gained significant attention due to its usefulness in creating…

Artificial Intelligence · Computer Science 2016-11-30 V. S. Anoop , S. Asharaf , P. Deepak

Background Concept extraction, a subdomain of natural language processing (NLP) with a focus on extracting concepts of interest, has been adopted to computationally extract clinical information from text for a wide range of applications…

Specialized dictionaries are used to understand concepts in specific domains, especially where those concepts are not part of the general vocabulary, or having meanings that differ from ordinary languages. The first step in creating a…

Computation and Language · Computer Science 2016-06-01 Gregory Grefenstette , Lawrence Muchemi

Compositional embedding models build a representation (or embedding) for a linguistic structure based on its component word embeddings. We propose a Feature-rich Compositional Embedding Model (FCM) for relation extraction that is…

Computation and Language · Computer Science 2015-09-16 Matthew R. Gormley , Mo Yu , Mark Dredze

In this study we propose a framework to characterize documents based on their semantic flow. The proposed framework encompasses a network-based model that connected sentences based on their semantic similarity. Semantic fields are detected…

Computation and Language · Computer Science 2020-07-06 Edilson A. Corrêa , Vanessa Q. Marinho , Diego R. Amancio

Techniques are presented for defining models of computational linguistics theories. The methods of generalized diagrams that were developed by this author for modeling artificial intelligence planning and reasoning are shown to be…

cmp-lg · Computer Science 2008-02-03 Cyrus F. Nourani

The field of programming has a diversity of paradigms that are used according to the working framework. While current neural code generation methods are able to learn and generate code directly from text, we believe that this approach is…

Computation and Language · Computer Science 2023-07-12 El Mehdi Chouham , Jessica López Espejel , Mahaman Sanoussi Yahaya Alassan , Walid Dahhane , El Hassane Ettifouri

We present a simple approach for automatically extracting the number of subjects involved in randomised controlled trials (RCT). Our approach first applies a set of rule-based techniques to extract candidate study sizes from the abstracts…

Artificial Intelligence · Computer Science 2016-06-24 Abeed Sarker

We study the problem of agreement and disagreement detection in online discussions. An isotonic Conditional Random Fields (isotonic CRF) based sequential model is proposed to make predictions on sentence- or segment-level. We automatically…

Computation and Language · Computer Science 2016-06-21 Lu Wang , Claire Cardie

The extraction of lung lesion information from clinical and medical imaging reports is crucial for research on and clinical care of lung-related diseases. Large language models (LLMs) can be effective at interpreting unstructured text in…

Computation and Language · Computer Science 2024-11-18 Diya Li , Asim Kadav , Aijing Gao , Rui Li , Richard Bourgon

We establish a central limit theorem and an invariance principle for stationary random fields, with projective-type conditions. Our result is obtained via an m-dependent approximation method. As applications, we establish invariance…

Probability · Mathematics 2012-04-12 Yizao Wang , Michael Woodroofe

This paper presents a new Bayesian non-parametric model by extending the usage of Hierarchical Dirichlet Allocation to extract tree structured word clusters from text data. The inference algorithm of the model collects words in a cluster if…

Computation and Language · Computer Science 2016-01-22 Halid Ziya Yerebakan , Fitsum Reda , Yiqiang Zhan , Yoshihisa Shinagawa

This paper presents an algorithm for tagging words whose part-of-speech properties are unknown. Unlike previous work, the algorithm categorizes word tokens in context instead of word types. The algorithm is evaluated on the Brown Corpus.

cmp-lg · Computer Science 2008-02-03 Hinrich Schuetze

State-of-the-art methods for relation extraction consider the sentential context by modeling the entire sentence. However, syntactic indicators, certain phrases or words like prepositions that are more informative than other words and may…

Computation and Language · Computer Science 2019-12-05 Qiongxing Tao , Xiangfeng Luo , Hao Wang

Specificity is important for extracting collocations, keyphrases, multi-word and index terms [Newman et al. 2012]. It is also useful for tagging, ontology construction [Ryu and Choi 2006], and automatic summarization of documents [Louis and…

Computation and Language · Computer Science 2014-03-11 Michael Stewart

Sequence labeling is a fundamental problem in machine learning, natural language processing and many other fields. A classic approach to sequence labeling is linear chain conditional random fields (CRFs). When combined with neural network…

Machine Learning · Computer Science 2020-11-11 Yang Zhou , Yong Jiang , Zechuan Hu , Kewei Tu

We consider phrase based Language Models (LM), which generalize the commonly used word level models. Similar concept on phrase based LMs appears in speech recognition, which is rather specialized and thus less suitable for machine…

Computation and Language · Computer Science 2015-01-20 Jia Xu , Geliang Chen

Today's probabilistic language generators fall short when it comes to producing coherent and fluent text despite the fact that the underlying models perform well under standard metrics, e.g., perplexity. This discrepancy has puzzled the…

Computation and Language · Computer Science 2025-06-06 Clara Meister , Tiago Pimentel , Gian Wiher , Ryan Cotterell

Generating semantic lexicons semi-automatically could be a great time saver, relative to creating them by hand. In this paper, we present an algorithm for extracting potential entries for a category from an on-line corpus, based upon a…

Computation and Language · Computer Science 2007-05-23 Brian Roark , Eugene Charniak

This paper presents a lexical disambiguation system, initially developed for English and now adapted to French. This system associates a word with its meaning in a given context using electronic dictionaries as semantically annotated…

Digital Libraries · Computer Science 2016-08-16 Caroline Brun , Bernard Jacquemin , Frédérique Segond
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