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Neural language models exhibit impressive performance on a variety of tasks, but their internal reasoning may be difficult to understand. Prior art aims to uncover meaningful properties within model representations via probes, but it is…

计算与语言 · 计算机科学 2021-09-21 Mycal Tucker , Peng Qian , Roger Levy

Morphologically rich languages accentuate two properties of distributional vector space models: 1) the difficulty of inducing accurate representations for low-frequency word forms; and 2) insensitivity to distinct lexical relations that…

计算与语言 · 计算机科学 2017-06-02 Ivan Vulić , Nikola Mrkšić , Roi Reichart , Diarmuid Ó Séaghdha , Steve Young , Anna Korhonen

Representation learning plays a central role in structuring internal embeddings to capture the statistical properties of language, influencing the coherence and contextual consistency of generated text. Statistical Coherence Alignment is…

While cross-lingual word embeddings have been studied extensively in recent years, the qualitative differences between the different algorithms remain vague. We observe that whether or not an algorithm uses a particular feature set…

计算与语言 · 计算机科学 2017-01-11 Omer Levy , Anders Søgaard , Yoav Goldberg

Embeddings in AI convert symbolic structures into fixed-dimensional vectors, effectively fusing multiple signals. However, the nature of this fusion in real-world data is often unclear. To address this, we introduce two methods: (1)…

机器学习 · 计算机科学 2023-11-21 Zhijin Guo , Zhaozhen Xu , Martha Lewis , Nello Cristianini

Semantic type mismatch between a noun and its context is central to coercion phenomena. This paper introduces a graph-based method to examine how lexical and contextual type information is reflected in word embeddings. We select nouns from…

计算与语言 · 计算机科学 2026-05-25 Long Chen , Deniz Ekin Yavas

We present a qualitative analysis of the (potentially erroneous) outputs of contextualized embedding-based methods for detecting diachronic semantic change. First, we introduce an ensemble method outperforming previously described…

计算与语言 · 计算机科学 2022-09-02 Andrey Kutuzov , Erik Velldal , Lilja Øvrelid

This paper investigates contextual word representation models from the lens of similarity analysis. Given a collection of trained models, we measure the similarity of their internal representations and attention. Critically, these models…

计算与语言 · 计算机科学 2020-05-05 John M. Wu , Yonatan Belinkov , Hassan Sajjad , Nadir Durrani , Fahim Dalvi , James Glass

This study investigates how well computational embeddings align with human semantic judgments in the processing of English compound words. We compare static word vectors (GloVe) and contextualized embeddings (BERT) against human ratings of…

计算与语言 · 计算机科学 2025-11-03 Swarang Joshi

Word embeddings predict a word from its neighbours by learning small, dense embedding vectors. In practice, this prediction corresponds to a semantic score given to the predicted word (or term weight). We present a novel model that, given a…

信息检索 · 计算机科学 2019-06-04 Casper Hansen , Christian Hansen , Stephen Alstrup , Jakob Grue Simonsen , Christina Lioma

It has been reliably shown that the similarity of word embeddings obtained from popular neural models such as BERT approximates effectively a form of semantic similarity of the meaning of those words. It is therefore natural to wonder if…

人工智能 · 计算机科学 2024-08-02 Mathieu d'Aquin , Emmanuel Nauer

Sentence embedding is an important research topic in natural language processing (NLP) since it can transfer knowledge to downstream tasks. Meanwhile, a contextualized word representation, called BERT, achieves the state-of-the-art…

计算与语言 · 计算机科学 2020-06-02 Bin Wang , C. -C. Jay Kuo

Contextualized word embeddings have demonstrated state-of-the-art performance in various natural language processing tasks including those that concern historical semantic change. However, language models such as BERT was trained primarily…

计算与语言 · 计算机科学 2022-02-10 Wenjun Qiu , Yang Xu

Cosine similarity between two words, computed using their contextualised token embeddings obtained from masked language models (MLMs) such as BERT has shown to underestimate the actual similarity between those words (Zhou et al., 2022).…

计算与语言 · 计算机科学 2023-05-19 Saeth Wannasuphoprasit , Yi Zhou , Danushka Bollegala

The meanings and relationships of words shift over time. This phenomenon is referred to as semantic shift. Research focused on understanding how semantic shifts occur over multiple time periods is essential for gaining a detailed…

计算与语言 · 计算机科学 2025-01-20 Hajime Kiyama , Taichi Aida , Mamoru Komachi , Toshinobu Ogiso , Hiroya Takamura , Daichi Mochihashi

This article focuses on the study of Word Embedding, a feature-learning technique in Natural Language Processing that maps words or phrases to low-dimensional vectors. Beginning with the linguistic theories concerning contextual…

计算与语言 · 计算机科学 2019-11-05 Xiaolei Lu , Bin Ni

We investigate how Multilingual BERT (mBERT) encodes grammar by examining how the high-order grammatical feature of morphosyntactic alignment (how different languages define what counts as a "subject") is manifested across the embedding…

计算与语言 · 计算机科学 2021-01-28 Isabel Papadimitriou , Ethan A. Chi , Richard Futrell , Kyle Mahowald

Accurately interpreting words is vital in political science text analysis; some tasks require assuming semantic stability, while others aim to trace semantic shifts. Traditional static embeddings, like Word2Vec effectively capture long-term…

计算与语言 · 计算机科学 2025-01-22 Ruiyu Zhang , Lin Nie , Ce Zhao , Qingyang Chen

Institutional bias can impact patient outcomes, educational attainment, and legal system navigation. Written records often reflect bias, and once bias is identified; it is possible to refer individuals for training to reduce bias. Many…

Contextualized embeddings vary by context, even for the same token, and form a distribution in the embedding space. To analyze this distribution, we focus on the norm of the mean embedding and the variance of the embeddings. In this study,…

计算与语言 · 计算机科学 2024-12-18 Hiroaki Yamagiwa , Hidetoshi Shimodaira