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Distributed representations of words have shown to be useful to improve the effectiveness of IR systems in many sub-tasks like query expansion, retrieval and ranking. Algorithms like word2vec, GloVe and others are also key factors in many…

Information Retrieval · Computer Science 2019-09-05 Tommaso Teofili , Niyati Chhaya

Word embedding models such as GloVe rely on co-occurrence statistics from a large corpus to learn vector representations of word meaning. These vectors have proven to capture surprisingly fine-grained semantic and syntactic information.…

Computation and Language · Computer Science 2017-11-16 Shoaib Jameel , Zied Bouraoui , Steven Schockaert

Distributed representations of words have boosted the performance of many Natural Language Processing tasks. However, usually only one representation per word is obtained, not acknowledging the fact that some words have multiple meanings.…

Computation and Language · Computer Science 2016-02-22 Luis Nieto Piña , Richard Johansson

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

We present Contextual Discourse Vectors (CDV), a distributed document representation for efficient answer retrieval from long healthcare documents. Our approach is based on structured query tuples of entities and aspects from free text and…

Computation and Language · Computer Science 2020-02-04 Sebastian Arnold , Betty van Aken , Paul Grundmann , Felix A. Gers , Alexander Löser

Over the past years, distributed semantic representations have proved to be effective and flexible keepers of prior knowledge to be integrated into downstream applications. This survey focuses on the representation of meaning. We start from…

Computation and Language · Computer Science 2018-10-29 Jose Camacho-Collados , Mohammad Taher Pilehvar

In this paper we propose a general framework for learning distributed representations of attributes: characteristics of text whose representations can be jointly learned with word embeddings. Attributes can correspond to document indicators…

Machine Learning · Computer Science 2014-06-12 Ryan Kiros , Richard S. Zemel , Ruslan Salakhutdinov

This paper attempt to study the effectiveness of text representation schemes on two tasks namely: User Aggression and Fact Detection from the social media contents. In User Aggression detection, The aim is to identify the level of…

Information Retrieval · Computer Science 2019-04-19 Sandip Modha , Prasenjit Majumder

Much of the progress in contemporary NLP has come from learning representations, such as masked language model (MLM) contextual embeddings, that turn challenging problems into simple classification tasks. But how do we quantify and explain…

Computation and Language · Computer Science 2021-09-16 Gregory Yauney , David Mimno

Recent work exhibited that distributed word representations are good at capturing linguistic regularities in language. This allows vector-oriented reasoning based on simple linear algebra between words. Since many different methods have…

Computation and Language · Computer Science 2016-03-25 Fei Sun , Jiafeng Guo , Yanyan Lan , Jun Xu , Xueqi Cheng

We propose a method to learn unsupervised sentence representations in a non-compositional manner based on Generative Latent Optimization. Our approach does not impose any assumptions on how words are to be combined into a sentence…

Computation and Language · Computer Science 2019-08-14 Sidak Pal Singh , Angela Fan , Michael Auli

Contextualized embeddings are the preferred tool for modeling Lexical Semantic Change (LSC). Current evaluations typically focus on a specific task known as Graded Change Detection (GCD). However, performance comparison across work are…

Computation and Language · Computer Science 2024-10-31 Francesco Periti , Nina Tahmasebi

Contextual word representations derived from large-scale neural language models are successful across a diverse set of NLP tasks, suggesting that they encode useful and transferable features of language. To shed light on the linguistic…

Computation and Language · Computer Science 2019-04-29 Nelson F. Liu , Matt Gardner , Yonatan Belinkov , Matthew E. Peters , Noah A. Smith

Distributed representations of words as real-valued vectors in a relatively low-dimensional space aim at extracting syntactic and semantic features from large text corpora. A recently introduced neural network, named word2vec (Mikolov et…

Computation and Language · Computer Science 2015-08-11 Adriaan M. J. Schakel , Benjamin J. Wilson

The representation space of pretrained Language Models (LMs) encodes rich information about words and their relationships (e.g., similarity, hypernymy, polysemy) as well as abstract semantic notions (e.g., intensity). In this paper, we…

Computation and Language · Computer Science 2023-06-02 Qing Lyu , Marianna Apidianaki , Chris Callison-Burch

Distributed representations of words, better known as word embeddings, have become important building blocks for natural language processing tasks. Numerous studies are devoted to transferring the success of unsupervised word embeddings to…

Computation and Language · Computer Science 2018-11-28 Tianlin Liu , João Sedoc , Lyle Ungar

Conventional text classification models make a bag-of-words assumption reducing text into word occurrence counts per document. Recent algorithms such as word2vec are capable of learning semantic meaning and similarity between words in an…

Computation and Language · Computer Science 2018-07-11 Vincent Major , Alisa Surkis , Yindalon Aphinyanaphongs

Contextualized word representations are able to give different representations for the same word in different contexts, and they have been shown to be effective in downstream natural language processing tasks, such as question answering,…

Computation and Language · Computer Science 2020-01-01 Christian Hadiwinoto , Hwee Tou Ng , Wee Chung Gan

Embeddings are an important tool for the representation of word meaning. Their effectiveness rests on the distributional hypothesis: words that occur in the same context carry similar semantic information. Here, we adapt this approach to…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Matthias S. Treder , Juan Mayor-Torres , Christoph Teufel

Word vector representations open up new opportunities to extract useful information from unstructured text. Defining a word as a vector made it easy for the machine learning algorithms to understand a text and extract information from. Word…

Computation and Language · Computer Science 2021-05-19 Mohammed Ibrahim , Susan Gauch , Tyler Gerth , Brandon Cox