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Conventional word embeddings represent words with fixed vectors, which are usually trained based on co-occurrence patterns among words. In doing so, however, the power of such representations is limited, where the same word might be…

Computation and Language · Computer Science 2020-01-10 Hongming Zhang , Jiaxin Bai , Yan Song , Kun Xu , Changlong Yu , Yangqiu Song , Wilfred Ng , Dong Yu

Distributed word representations are popularly used in many tasks in natural language processing. Adding that pretrained word vectors on huge text corpus achieved high performance in many different NLP tasks. This paper introduces multiple…

Computation and Language · Computer Science 2022-03-11 Hadi Abdine , Christos Xypolopoulos , Moussa Kamal Eddine , Michalis Vazirgiannis

Similarity measures based purely on word embeddings are comfortably competing with much more sophisticated deep learning and expert-engineered systems on unsupervised semantic textual similarity (STS) tasks. In contrast to commonly used…

Computation and Language · Computer Science 2019-10-08 Vitalii Zhelezniak , April Shen , Daniel Busbridge , Aleksandar Savkov , Nils Hammerla

In this paper, we propose a novel approach for text classification based on clustering word embeddings, inspired by the bag of visual words model, which is widely used in computer vision. After each word in a collection of documents is…

Computation and Language · Computer Science 2017-07-26 Andrei M. Butnaru , Radu Tudor Ionescu

Cross-lingual transfer of word embeddings aims to establish the semantic mappings among words in different languages by learning the transformation functions over the corresponding word embedding spaces. Successfully solving this problem…

Computation and Language · Computer Science 2018-09-12 Ruochen Xu , Yiming Yang , Naoki Otani , Yuexin Wu

We consider the task of aligning two sets of points in high dimension, which has many applications in natural language processing and computer vision. As an example, it was recently shown that it is possible to infer a bilingual lexicon,…

Machine Learning · Computer Science 2018-05-30 Edouard Grave , Armand Joulin , Quentin Berthet

This paper investigates an unsupervised approach towards deriving a universal, cross-lingual word embedding space, where words with similar semantics from different languages are close to one another. Previous adversarial approaches have…

Computation and Language · Computer Science 2022-10-10 Liping Tang , Zhen Li , Zhiquan Luo , Helen Meng

Vector representations obtained from word embedding are the source of many groundbreaking advances in natural language processing. They yield word representations that are capable of capturing semantics and analogies of words within a text…

Computation and Language · Computer Science 2023-05-09 Didier Gohourou , Kazuhiro Kuwabara

Dense vector representations for textual data are crucial in modern NLP. Word embeddings and sentence embeddings estimated from raw texts are key in achieving state-of-the-art results in various tasks requiring semantic understanding.…

Computation and Language · Computer Science 2023-07-06 Sonal Sannigrahi , Josef van Genabith , Cristina Espana-Bonet

Nowadays, classical count-based word embeddings using positive pointwise mutual information (PPMI) weighted co-occurrence matrices have been widely superseded by machine-learning-based methods like word2vec and GloVe. But these methods are…

Computation and Language · Computer Science 2020-06-23 Jakob Jungmaier , Nora Kassner , Benjamin Roth

Many loss functions in representation learning are invariant under a continuous symmetry transformation. For example, the loss function of word embeddings (Mikolov et al., 2013) remains unchanged if we simultaneously rotate all word and…

Machine Learning · Statistics 2020-07-21 Robert Bamler , Stephan Mandt

Pre-trained word embeddings improve the performance of a neural model at the cost of increasing the model size. We propose to benefit from this resource without paying the cost by operating strictly at the sub-lexical level. Our approach is…

Computation and Language · Computer Science 2017-07-24 Karl Stratos

Current advances in Natural Language Processing (NLP) have made it increasingly feasible to build applications leveraging textual data. Generally, the core of these applications rely on having a good semantic representation of text into…

Computation and Language · Computer Science 2024-10-21 Thomas Uriot

Acoustic word embeddings are typically created by training a pooling function using pairs of word-like units. For unsupervised systems, these are mined using k-nearest neighbor (KNN) search, which is slow. Recently, mean-pooled…

Computation and Language · Computer Science 2023-06-06 Ramon Sanabria , Ondrej Klejch , Hao Tang , Sharon Goldwater

This paper presents a novel method to improve the robustness of foundation models to group-based biases. We propose a simple yet effective method, called DoubleCCA, that leverages random sentences and Canonical Correlation Analysis (CCA) to…

Computation and Language · Computer Science 2024-11-26 Hong Liu , Yitong Lu

The widespread use of large language models has resulted in a multitude of tokenizers and embedding spaces, making knowledge transfer in prompt discovery tasks difficult. In this work, we propose FUSE (Flexible Unification of Semantic…

Computation and Language · Computer Science 2024-08-12 Joshua Nathaniel Williams , J. Zico Kolter

In this paper, we investigate a deep learning approach for speech denoising through an efficient ensemble of specialist neural networks. By splitting up the speech denoising task into non-overlapping subproblems and introducing a…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-11 Aswin Sivaraman , Minje Kim

This paper evaluates existing and newly proposed answer selection methods based on pre-trained word embeddings. Word embeddings are highly effective in various natural language processing tasks and their integration into traditional…

Information Retrieval · Computer Science 2017-08-16 Rishav Chakravarti , Jiri Navratil , Cicero Nogueira dos Santos

We present a simple yet effective approach for learning word sense embeddings. In contrast to existing techniques, which either directly learn sense representations from corpora or rely on sense inventories from lexical resources, our…

Computation and Language · Computer Science 2017-08-14 Maria Pelevina , Nikolay Arefyev , Chris Biemann , Alexander Panchenko

We propose a novel word embedding pre-training approach that exploits writing errors in learners' scripts. We compare our method to previous models that tune the embeddings based on script scores and the discrimination between correct and…

Computation and Language · Computer Science 2019-07-05 Youmna Farag , Marek Rei , Ted Briscoe