Challenge: Word embeddings are increasingly used for automatic detection of semantic change, but a robust evaluation and systematic comparison of the choices involved has been lacking.
Approach: They propose a new evaluation framework for semantic change detection using whole time series and a Twitter dataset spanning 5.5 years.
Outcome: The proposed framework shows that using whole time series is preferable over continuously trained embeddings for long time periods and that the reference point matters.

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Substitution-based Semantic Change Detection using Contextual Embeddings (2023.acl-short)

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Challenge: a simplified approach to measuring semantic change using contextual embeddings is proposed . the static word vectors used for measuring semantic changes are difficult to interpret .
Approach: They propose a simplified approach to measuring semantic change using contextual embeddings . they use the Jensen-Shannon Divergence between the distributions of most probable replacements for masked words in different time periods to measure semantic change.
Outcome: The proposed approach is interpretable, efficient and much more efficient than static embeddings.
A Systematic Comparison of Contextualized Word Embeddings for Lexical Semantic Change (2024.naacl-long)

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Challenge: Contextualized embeddings are the preferred tool for modeling Lexical Semantic Change (LSC) current evaluations focus on a specific task known as Graded Change Detection (GCD) however, performance comparisons between different approaches are often misleading due to diverse settings.
Approach: They evaluate the performance of contextualized embeddings for Lexical Semantic Change (LSC) they break the problem into Word-in-Context (WiC) and Word Sense Induction (WSI) tasks .
Outcome: The proposed model outperforms other models on eight available benchmarks for Lexical Semantic Change (LSC) while comparable to GPT-4.
Diachronic word embeddings and semantic shifts: a survey (C18-1)

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Challenge: Existing methods for tracing time-related semantic shifts with word embedding models lack the cohesion, common terminology and shared practices of more established areas of natural language processing.
Approach: They propose several axes along which these methods can be compared and propose a framework for comparison.
Outcome: The proposed methods are compared with existing methods and outline their main challenges and potential applications.
Scalable and Interpretable Semantic Change Detection (2021.naacl-main)

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Challenge: Several cluster-based methods for word usage change detection are unscalable in terms of memory consumption and computation time.
Approach: They propose a scalable method for word usage-change detection that uses contextual embeddings to aggregate word usages into clusters.
Outcome: The proposed method offers high performance and interpretability while being unscalable.
Sequential Modelling of the Evolution of Word Representations for Semantic Change Detection (2020.emnlp-main)

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Challenge: Existing models that detect semantically shifted words do not account for its evolution through time.
Approach: They propose three variants of sequential models for detecting semantically shifted words . they demonstrate that temporal modelling of word representations yields a clear-cut advantage .
Outcome: The proposed models account for the changes in word representations over time.
Simple, Interpretable and Stable Method for Detecting Words with Usage Change across Corpora (2020.acl-main)

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Challenge: comparing two corpus texts and searching for words that differ in their usage between them is a common problem in digital humanities and computational social science.
Approach: They propose an alternative approach that does not use vector space alignment, and instead considers the neighbors of each word.
Outcome: The proposed method is interpretable and stable in 9 different setups and is highly reliable.
Exploring Word Usage Change with Continuously Evolving Embeddings (2021.acl-demo)

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Challenge: a new method to track word usage changes is proposed for text datasets that are collected over a longer period of time.
Approach: They propose a way to track word usage changes via continuously evolving embeddings . they demonstrate an interactive web app that can explore semantic shifts with interactive plots a text .
Outcome: The proposed method can be used to analyze word usage changes with interactive plots.
Current Semantic-change Quantification Methods Struggle with Semantic Change Discovery in the Wild (2025.emnlp-main)

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Challenge: Existing methods for lexical semantic-change detection quantify changes in the meaning of words over time.
Approach: They propose to use a top-k setup to evaluate semantic-change discovery despite lacking complete annotations on a battery of semantic-changing detection methods.
Outcome: The proposed setup extends the annotations in the commonly used LiverpoolFC and SemEval-EN benchmarks by 85% and 90%.
Detecting Contact-Induced Semantic Shifts: What Can Embedding-Based Methods Do in Practice? (2021.emnlp-main)

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Challenge: Existing work on semantic change detection methods has focused on generic research questions and datasets, using them as a training ground for proof-of-concept studies.
Approach: They propose to use type-level embeddings to detect new semantic shifts and token-level embeddeds to isolate regionally specific occurrences.
Outcome: The proposed method is comparable to state-of-the-art on diachrony tasks, but it does not translate to practical value in detecting new semantic shifts.
Graph-based Clustering for Detecting Semantic Change Across Time and Languages (2024.eacl-long)

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Challenge: Existing approaches to detect semantic change using contextualized embeddings are underperforming . a graph-based clustering approach captures nuanced changes in word senses across time and languages .
Approach: They propose a graph-based clustering approach to capture nuanced changes in word senses across time and languages.
Outcome: The proposed approach surpasses previous approaches in the SemEval2020 binary classification task across four languages.

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