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In essence, embedding algorithms work by optimizing the distance between a word and its usual context in order to generate an embedding space that encodes the distributional representation of words. In addition to single words or word…

Computation and Language · Computer Science 2021-04-14 Andres Garcia-Silva , Ronald Denaux , Jose Manuel Gomez-Perez

Existing methods to measure sentence similarity are faced with two challenges: (1) labeled datasets are usually limited in size, making them insufficient to train supervised neural models; (2) there is a training-test gap for unsupervised…

Computation and Language · Computer Science 2022-02-01 Xiaofei Sun , Yuxian Meng , Xiang Ao , Fei Wu , Tianwei Zhang , Jiwei Li , Chun Fan

Measuring the distance between machine-produced and human language is a critical open problem. Inspired by empirical findings from psycholinguistics on the periodicity of entropy in language, we propose FACE, a set of metrics based on…

Computation and Language · Computer Science 2023-10-26 Zuhao Yang , Yingfang Yuan , Yang Xu , Shuo Zhan , Huajun Bai , Kefan Chen

Contextualized word embedding models, such as ELMo, generate meaningful representations of words and their context. These models have been shown to have a great impact on downstream applications. However, in many cases, the contextualized…

Computation and Language · Computer Science 2019-09-27 Weijia Shi , Muhao Chen , Pei Zhou , Kai-Wei Chang

Language Confusion is a phenomenon where Large Language Models (LLMs) generate text that is neither in the desired language, nor in a contextually appropriate language. This phenomenon presents a critical challenge in text generation by…

Computation and Language · Computer Science 2025-02-11 Yiyi Chen , Qiongxiu Li , Russa Biswas , Johannes Bjerva

Lexical ambiguity is widespread in language, allowing for the reuse of economical word forms and therefore making language more efficient. If ambiguous words cannot be disambiguated from context, however, this gain in efficiency might make…

Computation and Language · Computer Science 2024-05-29 Tiago Pimentel , Rowan Hall Maudslay , Damián Blasi , Ryan Cotterell

This paper takes a step towards theoretical analysis of the relationship between word embeddings and context embeddings in models such as word2vec. We start from basic probabilistic assumptions on the nature of word vectors, context…

Machine Learning · Statistics 2019-02-27 Zhenisbek Assylbekov , Rustem Takhanov

While pre-trained language models (LMs) have brought great improvements in many NLP tasks, there is increasing attention to explore capabilities of LMs and interpret their predictions. However, existing works usually focus only on a certain…

Computation and Language · Computer Science 2022-07-29 Yaozong Shen , Lijie Wang , Ying Chen , Xinyan Xiao , Jing Liu , Hua Wu

The logical connectivity of text is represented by the connectivity of words that form archipelagoes. Here, each archipelago is a sequence of islands of the occurrences of a certain word. An island here means the local sequence of sentences…

Computation and Language · Computer Science 2024-10-01 Yukio Ohsawa

Although models using contextual word embeddings have achieved state-of-the-art results on a host of NLP tasks, little is known about exactly what information these embeddings encode about the context words that they are understood to…

Computation and Language · Computer Science 2020-05-06 Josef Klafka , Allyson Ettinger

Models trained to estimate word probabilities in context have become ubiquitous in natural language processing. How do these models use lexical cues in context to inform their word probabilities? To answer this question, we present a case…

Computation and Language · Computer Science 2021-04-23 Kanishka Misra , Allyson Ettinger , Julia Taylor Rayz

Word embeddings are trained to predict word cooccurrence statistics, which leads them to possess different lexical properties (syntactic, semantic, etc.) depending on the notion of context defined at training time. These properties manifest…

Computation and Language · Computer Science 2020-11-06 Jingyi He , KC Tsiolis , Kian Kenyon-Dean , Jackie Chi Kit Cheung

Training long-context language models to capture long-range dependencies requires specialized data construction. Current approaches, such as generic text concatenation or heuristic-based variants, frequently fail to guarantee genuine…

Computation and Language · Computer Science 2025-10-06 Junlong Jia , Ziyang Chen , Xing Wu , Chaochen Gao , Zijia Lin , Debing Zhang , Songlin Hu , Binghui Guo

Word Embeddings are used widely in multiple Natural Language Processing (NLP) applications. They are coordinates associated with each word in a dictionary, inferred from statistical properties of these words in a large corpus. In this paper…

Computation and Language · Computer Science 2020-06-18 Adam Sutton , Nello Cristianini

Terms in diachronic text corpora may exhibit a high degree of semantic dynamics that is only partially captured by the common notion of semantic change. The new measure of context volatility that we propose models the degree by which terms…

Computation and Language · Computer Science 2017-11-16 Christian Kahmann , Andreas Niekler , Gerhard Heyer

We study the role of linguistic context in predicting quantifiers (`few', `all'). We collect crowdsourced data from human participants and test various models in a local (single-sentence) and a global context (multi-sentence) condition.…

Computation and Language · Computer Science 2018-06-04 Sandro Pezzelle , Shane Steinert-Threlkeld , Raffaela Bernardi , Jakub Szymanik

Do word embeddings converge to learn similar things over different initializations? How repeatable are experiments with word embeddings? Are all word embedding techniques equally reliable? In this paper we propose evaluating methods for…

Computation and Language · Computer Science 2016-05-13 Yingtao Tian , Vivek Kulkarni , Bryan Perozzi , Steven Skiena

Usage similarity estimation addresses the semantic proximity of word instances in different contexts. We apply contextualized (ELMo and BERT) word and sentence embeddings to this task, and propose supervised models that leverage these…

Computation and Language · Computer Science 2019-05-22 Aina Garí Soler , Marianna Apidianaki , Alexandre Allauzen

A stochastic model of short-term verbal memory is proposed, in which the psychological state of the subject is encoded as the instantaneous position of a particle diffusing over a semantic graph with a probabilistic structure. The model is…

Neurons and Cognition · Quantitative Biology 2017-03-22 Francesco Fumarola

The phenomenon of entropy concentration provides strong support for the maximum entropy method, MaxEnt, for inferring a probability vector from information in the form of constraints. Here we extend this phenomenon, in a discrete setting,…

Information Theory · Computer Science 2021-01-11 Kostas N. Oikonomou