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Co-words have been considered as carriers of meaning across different domains in studies of science, technology, and society. Words and co-words, however, obtain meaning in sentences, and sentences obtain meaning in their contexts of use.…

计算与语言 · 计算机科学 2009-11-19 Loet Leydesdorff , Iina Hellsten

Word embeddings typically represent different meanings of a word in a single conflated vector. Empirical analysis of embeddings of ambiguous words is currently limited by the small size of manually annotated resources and by the fact that…

计算与语言 · 计算机科学 2019-06-11 Yadollah Yaghoobzadeh , Katharina Kann , Timothy J. Hazen , Eneko Agirre , Hinrich Schütze

Using the frequency of keywords is a classic approach in the formal analysis of text, but has the drawback of glossing over the relationality of word meanings. Word embedding models overcome this problem by constructing a standardized and…

计算机与社会 · 计算机科学 2021-05-05 Dustin S. Stoltz , Marshall A. Taylor

Recent years have witnessed a surge of publications aimed at tracing temporal changes in lexical semantics using distributional methods, particularly prediction-based word embedding models. However, this vein of research lacks the cohesion,…

计算与语言 · 计算机科学 2018-06-14 Andrey Kutuzov , Lilja Øvrelid , Terrence Szymanski , Erik Velldal

This study introduces an approach to estimate the uncertainty in bibliometric indicator values that is caused by data errors. This approach utilizes Bayesian regression models, estimated from empirical data samples, which are used to…

数字图书馆 · 计算机科学 2024-12-11 Paul Donner

There has been a surge of interest in computational modeling of semantic change. The foci of previous works are on detecting and interpreting word senses gained over time; however, it remains unclear whether the gained senses are covered by…

计算与语言 · 计算机科学 2024-07-08 Xianghe Ma , Dominik Schlechtweg , Wei Zhao

This work introduces a new method designed for Bayesian deep learning called scalable Bayesian Monte Carlo (SBMC). The method is comprised of a model and an algorithm. The model interpolates between a point estimator and the posterior. The…

It is generally believed that, when a linguistic item acquires a new meaning, its overall frequency of use in the language rises with time with an S-shaped growth curve. Yet, this claim has only been supported by a limited number of case…

物理与社会 · 物理学 2017-12-04 Quentin Feltgen , Benjamin Fagard , Jean-Pierre Nadal

The context tree source is a source model in which the occurrence probability of symbols is determined from a finite past sequence, and is a broader class of sources that includes i.i.d. and Markov sources. The proposed source model in this…

信息论 · 计算机科学 2021-05-14 Koshi Shimada , Shota Saito , Toshiyasu Matsushima

In Bayesian inference, predictive distributions are typically in the form of samples generated via Markov chain Monte Carlo (MCMC) or related algorithms. In this paper, we conduct a systematic analysis of how to make and evaluate…

统计方法学 · 统计学 2020-06-25 Fabian Krüger , Sebastian Lerch , Thordis L. Thorarinsdottir , Tilmann Gneiting

Bayesian inference is a popular and widely-used approach to infer phylogenies (evolutionary trees). However, despite decades of widespread application, it remains difficult to judge how well a given Bayesian Markov chain Monte Carlo (MCMC)…

统计方法学 · 统计学 2022-09-07 Andrew F. Magee , Michael D. Karcher , Frederick A. Matsen , Vladimir N. Minin

The semantic similarity between sample expressions measures the distance between their latent 'meaning'. These meanings are themselves typically represented by textual expressions. We propose a novel approach whereby the semantic similarity…

人工智能 · 计算机科学 2026-04-22 Tian Yu Liu , Stefano Soatto

The issue of word sense ambiguity poses a significant challenge in natural language processing due to the scarcity of annotated data to feed machine learning models to face the challenge. Therefore, unsupervised word sense disambiguation…

计算与语言 · 计算机科学 2023-12-14 Jorge Martinez-Gil

Markov chain Monte Carlo (MCMC) algorithms are ubiquitous in probability theory in general and in machine learning in particular. A Markov chain is devised so that its stationary distribution is some probability distribution of interest.…

机器学习 · 计算机科学 2017-11-02 Johan Jonasson

Emotion is a crucial phenomenon in the functioning of human beings in society. However, it remains a widely open subject, particularly in its textual manifestations. This paper examines an industrial corpus manually annotated following an…

计算与语言 · 计算机科学 2025-09-03 Jonas Noblet

Model comparison for the purposes of selection, averaging and validation is a problem found throughout statistics. Within the Bayesian paradigm, these problems all require the calculation of the posterior probabilities of models within a…

统计方法学 · 统计学 2015-06-08 Yan Zhou , Adam M Johansen , John A D Aston

Word senses are not static and may have temporal, spatial or corpus-specific scopes. Identifying such scopes might benefit the existing WSD systems largely. In this paper, while studying corpus specific word senses, we adapt three existing…

计算与语言 · 计算机科学 2018-02-02 Binny Mathew , Suman Kalyan Maity , Pratip Sarkar , Animesh Mukherjee , Pawan Goyal

Though there are some works on improving distributed word representations using lexicons, the improper overfitting of the words that have multiple meanings is a remaining issue deteriorating the learning when lexicons are used, which needs…

计算与语言 · 计算机科学 2017-03-10 Yuanzhi Ke , Masafumi Hagiwara

In this paper, we propose a statistical test to determine whether a given word is used as a polysemic word or not. The statistic of the word in this test roughly corresponds to the fluctuation in the senses of the neighboring words a nd the…

数据结构与算法 · 计算机科学 2017-09-27 Kana Oomoto , Haruka Oikawa , Eiko Yamamoto , Mitsuo Yoshida , Masayuki Okabe , Kyoji Umemura

We apply random matrix theory to study the impact of measurement uncertainty on dynamic mode decomposition. Specifically, when the measurements follow a normal probability density function, we show how the moments of that density propagate…

统计方法学 · 统计学 2025-09-04 P. Algikar , P. Sharma , M. Netto , L. Mili