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Related papers: Unsupervised Word Polysemy Quantification with Mul…

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In traditional Distributional Semantic Models (DSMs) the multiple senses of a polysemous word are conflated into a single vector space representation. In this work, we propose a DSM that learns multiple distributional representations of a…

Computation and Language · Computer Science 2019-04-12 Eleftheria Briakou , Nikos Athanasiou , Alexandros Potamianos

There have been some works that learn a lexicon together with the corpus to improve the word embeddings. However, they either model the lexicon separately but update the neural networks for both the corpus and the lexicon by the same…

Computation and Language · Computer Science 2017-07-25 Yuanzhi Ke , Masafumi Hagiwara

Unsupervised word embeddings have been shown to be valuable as features in supervised learning problems; however, their role in unsupervised problems has been less thoroughly explored. In this paper, we show that embeddings can likewise add…

Computation and Language · Computer Science 2015-03-24 Chu-Cheng Lin , Waleed Ammar , Chris Dyer , Lori Levin

Most work on sense disambiguation presumes that one knows beforehand -- e.g. from a thesaurus -- a set of polysemous terms. But published lists invariably give only partial coverage. For example, the English word tan has several obvious…

Computation and Language · Computer Science 2019-05-30 Richard Sproat , Jan van Santen

In this paper, we propose Ranksum, an approach for extractive text summarization of single documents based on the rank fusion of four multi-dimensional sentence features extracted for each sentence: topic information, semantic content,…

Machine Learning · Computer Science 2024-02-12 A. Joshi , E. Fidalgo , E. Alegre , R. Alaiz-Rodriguez

Most unsupervised NLP models represent each word with a single point or single region in semantic space, while the existing multi-sense word embeddings cannot represent longer word sequences like phrases or sentences. We propose a novel…

Computation and Language · Computer Science 2021-12-30 Haw-Shiuan Chang , Amol Agrawal , Andrew McCallum

We present a language independent, unsupervised method for building word embeddings using morphological expansion of text. Our model handles the problem of data sparsity and yields improved word embeddings by relying on training word…

Computation and Language · Computer Science 2017-11-16 Syed Sarfaraz Akhtar , Arihant Gupta , Avijit Vajpayee , Arjit Srivastava , Manish Shrivastava

Word embedding is a fundamental natural language processing task which can learn feature of words. However, most word embedding methods assign only one vector to a word, even if polysemous words have multi-senses. To address this…

Computation and Language · Computer Science 2022-06-30 Yangxi Zhou , Junping Du , Zhe Xue , Ang Li , Zeli Guan

Sense embedding learning methods learn different embeddings for the different senses of an ambiguous word. One sense of an ambiguous word might be socially biased while its other senses remain unbiased. In comparison to the numerous prior…

Computation and Language · Computer Science 2022-03-17 Yi Zhou , Masahiro Kaneko , Danushka Bollegala

We consider the problem of aligning two sets of continuous word representations, corresponding to languages, to a common space in order to infer a bilingual lexicon. It was recently shown that it is possible to infer such lexicon, without…

Computation and Language · Computer Science 2024-02-13 Paul Garnier , Gauthier Guinet

The concept of unsupervised universal sentence encoders has gained traction recently, wherein pre-trained models generate effective task-agnostic fixed-dimensional representations for phrases, sentences and paragraphs. Such methods are of…

Computation and Language · Computer Science 2021-02-09 Subhradeep Kayal

We introduce new methods for estimating and evaluating embeddings of words in more than fifty languages in a single shared embedding space. Our estimation methods, multiCluster and multiCCA, use dictionaries and monolingual data; they do…

Computation and Language · Computer Science 2016-05-24 Waleed Ammar , George Mulcaire , Yulia Tsvetkov , Guillaume Lample , Chris Dyer , Noah A. Smith

State of the art natural language processing tools are built on context-dependent word embeddings, but no direct method for evaluating these representations currently exists. Standard tasks and datasets for intrinsic evaluation of…

This paper presents a new model of WordNet that is used to disambiguate the correct sense of polysemy word based on the clue words. The related words for each sense of a polysemy word as well as single sense word are referred to as the clue…

Computation and Language · Computer Science 2014-09-12 Udaya Raj Dhungana , Subarna Shakya , Kabita Baral , Bharat Sharma

In this paper, we are going to find meaning of words based on distinct situations. Word Sense Disambiguation is used to find meaning of words based on live contexts using supervised and unsupervised approaches. Unsupervised approaches use…

Computation and Language · Computer Science 2016-11-04 Alok Ranjan Pal , Anirban Kundu , Abhay Singh , Raj Shekhar , Kunal Sinha

Resolution of lexical ambiguity, commonly termed ``word sense disambiguation'', is expected to improve the analytical accuracy for tasks which are sensitive to lexical semantics. Such tasks include machine translation, information…

cmp-lg · Computer Science 2007-05-23 Atsushi Fujii

Existing models of multilingual sentence embeddings require large parallel data resources which are not available for low-resource languages. We propose a novel unsupervised method to derive multilingual sentence embeddings relying only on…

Computation and Language · Computer Science 2021-05-24 Ivana Kvapilıkova , Mikel Artetxe , Gorka Labaka , Eneko Agirre , Ondřej Bojar

This paper presents Semantic SentenceRank (SSR), an unsupervised scheme for automatically ranking sentences in a single document according to their relative importance. In particular, SSR extracts essential words and phrases from a text…

Information Retrieval · Computer Science 2020-05-06 Hao Zhang , Jie Wang

With the proliferation of digital content and the need for efficient information retrieval, this study's insights can be applied to various domains, including news services, e-commerce, and digital marketing, to provide users with more…

Information Retrieval · Computer Science 2024-04-24 Mike Nkongolo

Pre-trained language models (LMs) encode rich information about linguistic structure but their knowledge about lexical polysemy remains unclear. We propose a novel experimental setup for analysing this knowledge in LMs specifically trained…

Computation and Language · Computer Science 2021-05-03 Aina Garí Soler , Marianna Apidianaki