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In this work we propose a simple and efficient framework for learning sentence representations from unlabelled data. Drawing inspiration from the distributional hypothesis and recent work on learning sentence representations, we reformulate…

Computation and Language · Computer Science 2018-03-09 Lajanugen Logeswaran , Honglak Lee

Representing words by vectors, or embeddings, enables computational reasoning and is foundational to automating natural language tasks. For example, if word embeddings of similar words contain similar values, word similarity can be readily…

Computation and Language · Computer Science 2022-02-02 Carl Allen

Question-answering systems and voice assistants are becoming major part of client service departments of many organizations, helping them to reduce the labor costs of staff. In many such systems, there is always natural language…

Computation and Language · Computer Science 2019-04-02 Aleksandr Perevalov , Daniil Kurushin , Rustam Faizrakhmanov , Farida Khabibrakhmanova

In the context of natural language processing, representation learning has emerged as a newly active research subject because of its excellent performance in many applications. Learning representations of words is a pioneering study in this…

Computation and Language · Computer Science 2016-11-23 Kuan-Yu Chen , Shih-Hung Liu , Berlin Chen , Hsin-Min Wang

This paper proposes a new model for extracting an interpretable sentence embedding by introducing self-attention. Instead of using a vector, we use a 2-D matrix to represent the embedding, with each row of the matrix attending on a…

Computation and Language · Computer Science 2017-03-10 Zhouhan Lin , Minwei Feng , Cicero Nogueira dos Santos , Mo Yu , Bing Xiang , Bowen Zhou , Yoshua Bengio

Named entities have been considered and combined with keywords to enhance information retrieval performance. However, there is not yet a formal and complete model that takes into account entity names, classes, and identifiers together. Our…

Information Retrieval · Computer Science 2018-07-24 Tru H. Cao , Khanh C. Le , Vuong M. Ngo

Distributed representations of words learned from text have proved to be successful in various natural language processing tasks in recent times. While some methods represent words as vectors computed from text using predictive model…

Computation and Language · Computer Science 2018-02-20 Abhik Jana , Pawan Goyal

Starting from an unsolved problem of information retrieval this paper presents an ontology-based model for indexing and retrieval. The model combines the methods and experiences of cognitive-to-interpret indexing languages with the…

Information Retrieval · Computer Science 2013-12-17 Winfried Gödert

Machine learning systems regularly deal with structured data in real-world applications. Unfortunately, such data has been difficult to faithfully represent in a way that most machine learning techniques would expect, i.e. as a real-valued…

Active learning has been shown to be an effective way to alleviate some of the effort required in utilising large collections of unlabelled data for machine learning tasks without needing to fully label them. The representation mechanism…

Information Retrieval · Computer Science 2020-04-29 Jinghui Lu , Brian MacNamee

This paper examines the characterization and learning of grammars defined with enriched representational models. Model-theoretic approaches to formal language theory traditionally assume that each position in a string belongs to exactly one…

Formal Languages and Automata Theory · Computer Science 2019-06-25 Jane Chandlee , Remi Eyraud , Jeffrey Heinz , Adam Jardine , Jonathan Rawski

Neural machine translation (NMT) models are typically trained with fixed-size input and output vocabularies, which creates an important bottleneck on their accuracy and generalization capability. As a solution, various studies proposed…

Computation and Language · Computer Science 2018-05-08 Duygu Ataman , Marcello Federico

Vector representation of sentences is important for many text processing tasks that involve clustering, classifying, or ranking sentences. Recently, distributed representation of sentences learned by neural models from unlabeled data has…

Computation and Language · Computer Science 2016-10-27 Tanay Kumar Saha , Shafiq Joty , Naeemul Hassan , Mohammad Al Hasan

Compositionality is a key aspect of human intelligence, essential for reasoning and generalization. While transformer-based models have become the de facto standard for many language modeling tasks, little is known about how they represent…

Computation and Language · Computer Science 2025-06-03 Aishik Nagar , Ishaan Singh Rawal , Mansi Dhanania , Cheston Tan

Current work in lexical distributed representations maps each word to a point vector in low-dimensional space. Mapping instead to a density provides many interesting advantages, including better capturing uncertainty about a representation…

Computation and Language · Computer Science 2015-05-04 Luke Vilnis , Andrew McCallum

Sparse language vectors from linguistic typology databases and learned embeddings from tasks like multilingual machine translation have been investigated in isolation, without analysing how they could benefit from each other's language…

Computation and Language · Computer Science 2020-10-27 Arturo Oncevay , Barry Haddow , Alexandra Birch

In this paper, we present an improvement of our proposed technique for 3D shape retrieval in classified databases [2] which is based on representatives of classes. Instead of systematically matching the object-query with all 3D models of…

Computer Vision and Pattern Recognition · Computer Science 2018-12-31 M. Benjelloun , E. W. Dadi , E. M. Daoudi

Embedding words in high-dimensional vector spaces has proven valuable in many natural language applications. In this work, we investigate whether similarly-trained embeddings of integers can capture concepts that are useful for mathematical…

Computation and Language · Computer Science 2021-09-16 Maria Ryskina , Kevin Knight

For many real-world classification problems, e.g., sentiment classification, most existing machine learning methods are biased towards the majority class when the Imbalance Ratio (IR) is high. To address this problem, we propose a set…

Information Retrieval · Computer Science 2021-04-14 Yang Gao , Yi-Fan Li , Yu Lin , Charu Aggarwal , Latifur Khan

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