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Considering that words with different characteristic in the text have different importance for classification, grouping them together separately can strengthen the semantic expression of each part. Thus we propose a new text representation…

Computation and Language · Computer Science 2019-06-19 Xiaoye Tan , Rui Yan , Chongyang Tao , Mingrui Wu

Recognizing lexical semantic relations between word pairs is an important task for many applications of natural language processing. One of the mainstream approaches to this task is to exploit the lexico-syntactic paths connecting two…

Computation and Language · Computer Science 2018-09-11 Koki Washio , Tsuneaki Kato

We consider the problem of learning co-occurrence information between two word categories, or more in general between two discrete random variables taking values in a hierarchically classified domain. In particular, we consider the problem…

cmp-lg · Computer Science 2008-02-03 Naoki Abe , Hang Li

We formulate coherence modeling as a regression task and propose two novel methods to combine techniques from our setup with pairwise approaches. The first of our methods is a model that we call "first-next," which operates similarly to…

Computation and Language · Computer Science 2018-12-13 David McClure , Shayne O'Brien , Deb Roy

This paper addresses the issue of defining context, and more specifically the different contexts needed for understanding a particular type of texts. The corpus chosen is homogeneous and allows us to determine characteristic properties of…

cmp-lg · Computer Science 2008-02-03 Dominique Estival , Francoise Gayral

Across many data domains, co-occurrence statistics about the joint appearance of objects are powerfully informative. By transforming unsupervised learning problems into decompositions of co-occurrence statistics, spectral algorithms provide…

Computation and Language · Computer Science 2021-11-15 Moontae Lee , Sungjun Cho , Kun Dong , David Mimno , David Bindel

Skeleton-based human action recognition has recently drawn increasing attentions with the availability of large-scale skeleton datasets. The most crucial factors for this task lie in two aspects: the intra-frame representation for joint…

Computer Vision and Pattern Recognition · Computer Science 2018-04-18 Chao Li , Qiaoyong Zhong , Di Xie , Shiliang Pu

Learning representations for semantic relations is important for various tasks such as analogy detection, relational search, and relation classification. Although there have been several proposals for learning representations for individual…

Computation and Language · Computer Science 2015-05-04 Danushka Bollegala , Takanori Maehara , Ken-ichi Kawarabayashi

Collaborative filtering (CF) is a core technique for recommender systems. Traditional CF approaches exploit user-item relations (e.g., clicks, likes, and views) only and hence they suffer from the data sparsity issue. Items are usually…

Information Retrieval · Computer Science 2020-10-19 Guangneng Hu

In-context learning (ICL) excels at new tasks from minimal examples, yet we still lack a mechanistic explanation of how few-shot prompts shape a model's function vector (FV)--a causal activation direction that drives task behavior on the…

Machine Learning · Computer Science 2026-05-26 Entang Wang , Yiwei Wang , Aleksandra Bakalova , Michael Hahn

In this paper we perform a comparative analysis of three models for feature representation of text documents in the context of document classification. In particular, we consider the most often used family of models bag-of-words, recently…

Computation and Language · Computer Science 2017-07-06 Sanda Martinčić-Ipšić , Tanja Miličić , Ljupčo Todorovski

Models of bags of words typically assume topic mixing so that the words in a single bag come from a limited number of topics. We show here that many sets of bag of words exhibit a very different pattern of variation than the patterns that…

Information Retrieval · Computer Science 2012-02-20 Nebojsa Jojic , Alessandro Perina

This paper have two parts. In the first part we discuss word embeddings. We discuss the need for them, some of the methods to create them, and some of their interesting properties. We also compare them to image embeddings and see how word…

Machine Learning · Computer Science 2016-10-27 Amit Mandelbaum , Adi Shalev

In this study, we propose a method that distils representations of word meaning in context from a pre-trained masked language model in both monolingual and crosslingual settings. Word representations are the basis for context-aware lexical…

Computation and Language · Computer Science 2024-09-16 Yuki Arase , Tomoyuki Kajiwara

This paper presents a novel approach to the problem of semantic parsing via learning the correspondences between complex sentences and rich sets of events. Our main intuition is that correct correspondences tend to occur more frequently.…

Computation and Language · Computer Science 2012-10-19 Hannaneh Hajishirzi , Mohammad Rastegari , Ali Farhadi , Jessica K. Hodgins

This paper describes an algorithm for the computation of FIRST and FOLLOW sets for use with feature-theoretic grammars in which the value of the sets consists of pairs of feature-theoretic categories. The algorithm preserves as much…

cmp-lg · Computer Science 2008-02-03 Arturo Trujillo

We explore the representational space of emotions by combining methods from different academic fields. Cognitive science has proposed appraisal theory as a view on human emotion with previous research showing how human-rated abstract event…

Computation and Language · Computer Science 2017-10-24 Andres Campero , Bjarke Felbo , Joshua B. Tenenbaum , Rebecca Saxe

A neural language model trained on a text corpus can be used to induce distributed representations of words, such that similar words end up with similar representations. If the corpus is multilingual, the same model can be used to learn…

Computation and Language · Computer Science 2019-01-10 Johannes Bjerva , Robert Östling , Maria Han Veiga , Jörg Tiedemann , Isabelle Augenstein

Identifying the salience (i.e. importance) of discourse units is an important task in language understanding. While events play important roles in text documents, little research exists on analyzing their saliency status. This paper…

Computation and Language · Computer Science 2018-09-10 Zhengzhong Liu , Chenyan Xiong , Teruko Mitamura , Eduard Hovy

Semantic composition remains an open problem for vector space models of semantics. In this paper, we explain how the probabilistic graphical model used in the framework of Functional Distributional Semantics can be interpreted as a…

Computation and Language · Computer Science 2017-09-04 Guy Emerson , Ann Copestake