Search Results for author: Taichi Aida

Found 6 papers, 4 papers with code

A Semantic Distance Metric Learning approach for Lexical Semantic Change Detection

1 code implementation1 Mar 2024 Taichi Aida, Danushka Bollegala

Detecting temporal semantic changes of words is an important task for various NLP applications that must make time-sensitive predictions.

Change Detection Metric Learning +1

$\textit{Swap and Predict}$ -- Predicting the Semantic Changes in Words across Corpora by Context Swapping

1 code implementation16 Oct 2023 Taichi Aida, Danushka Bollegala

Intuitively, if the meaning of $w$ does not change between $\mathcal{C}_1$ and $\mathcal{C}_2$, we would expect the distributions of contextualised word embeddings of $w$ to remain the same before and after this random swapping process.

Change Detection Language Modelling +1

Can Word Sense Distribution Detect Semantic Changes of Words?

1 code implementation16 Oct 2023 Xiaohang Tang, Yi Zhou, Taichi Aida, Procheta Sen, Danushka Bollegala

Given this relationship between WSD and SCD, we explore the possibility of predicting whether a target word has its meaning changed between two corpora collected at different time steps, by comparing the distributions of senses of that word in each corpora.

Change Detection Word Sense Disambiguation

Unsupervised Semantic Variation Prediction using the Distribution of Sibling Embeddings

1 code implementation15 May 2023 Taichi Aida, Danushka Bollegala

However, some of the previously associated meanings of a target word can become obsolete over time (e. g. meaning of gay as happy), while novel usages of existing words are observed (e. g. meaning of cell as a mobile phone).

Modeling Text using the Continuous Space Topic Model with Pre-Trained Word Embeddings

no code implementations ACL 2021 Seiichi Inoue, Taichi Aida, Mamoru Komachi, Manabu Asai

In this study, we propose a model that extends the continuous space topic model (CSTM), which flexibly controls word probability in a document, using pre-trained word embeddings.

Document Classification Word Embeddings

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