Contextualized Embeddings for Enriching Linguistic Analyses on Politeness (2020.coling-main)
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| Challenge: | Current word embeddings in natural language processing do capture context and thus can be leveraged to enrich linguistic analyses. |
| Approach: | They propose a model which leverages pre-trained BERT to cluster contextualized representations of a word based on context in which it appears and labels of items it occurs in. |
| Outcome: | The proposed model can detect interpretable, finer-grained context patterns associated with (im)polite language. |
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| Challenge: | Existing methods for argument mining focus on analyzing local argumentation structures, but information-seeking approaches need to be able to deal with heterogeneous sources and topics. |
| Approach: | They propose to use contextualized word embeddings to classify and cluster topic-dependent arguments using a UKP Sentential Argument Mining Corpus and IBM Debater - Evidence Sentences datasets. |
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Spying on Your Neighbors: Fine-grained Probing of Contextual Embeddings for Information about Surrounding Words (2020.acl-main)
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| Challenge: | a suite of probing tasks test contextual embeddings for encoding of information about surrounding words . authors: little is known about what information embeddables encode about the context words encode . a recent study shows that contextual embeds can be powerful for many tasks . |
| Approach: | They propose probing tasks that enable fine-grained testing of contextual embeddings . they examine popular contextual encoders and find that each encodes contextual information across tokens a little different . |
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Obtaining Better Static Word Embeddings Using Contextual Embedding Models (2021.acl-long)
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| Challenge: | Recent contextual word embeddings have prohibitively high computational cost in many use-cases and are hard to interpret. |
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How Contextual are Contextualized Word Representations? Comparing the Geometry of BERT, ELMo, and GPT-2 Embeddings (D19-1)
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| Challenge: | Existing word embeddings were static, requiring all senses of a polysemous word to share the same representation. |
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| Outcome: | The results show that the representations of all words are not isotropic in any layer of the contextualizing model. |
Building Static Embeddings from Contextual Ones: Is It Useful for Building Distributional Thesauri? (2022.lrec-1)
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| Challenge: | contextual language models are dominant in the field of Natural Language Processing, but they are not suitable for all uses. |
| Approach: | They propose a method for building word or type-level embeddings from contextual models . they evaluate a large set of English nouns from the perspective of extracting semantic similarity relations . |
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ConTextING: Granting Document-Wise Contextual Embeddings to Graph Neural Networks for Inductive Text Classification (2022.coling-1)
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| Challenge: | Graph neural networks (GNNs) are used to learn document representation from graph structures. |
| Approach: | They propose a unified model with a joint training mechanism to learn from document embeddings and contextual word interactions simultaneously. |
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Using Paraphrases to Study Properties of Contextual Embeddings (2022.naacl-main)
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| Challenge: | Previously, paraphrases have been used to probe whether compositionality is accurately captured by BERT, but we believe they can be used to explore many other questions. |
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Picking BERT’s Brain: Probing for Linguistic Dependencies in Contextualized Embeddings Using Representational Similarity Analysis (2020.coling-main)
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| Challenge: | Contextualized word embeddings can incorporate contextual information, whereas other embeddables cannot. |
| Approach: | They propose an approach to address this question using Representational Similarity Analysis (RSA) they investigate whether verb embeddings encode verb’s subject, pronoun embedds antecedent and full-sentence representations encode sentence’s head word . |
| Outcome: | The proposed approach can adjudicate between hypotheses about which aspects of context are encoded in representations of language. |
Exploring Category Structure with Contextual Language Models and Lexical Semantic Networks (2023.eacl-main)
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| Challenge: | Recent work on word embeddings reports low correlations with human ratings . contextual language models (CLMs) have been successful in acquiring semantic and world knowledge. |
| Approach: | They propose to use BERT to probe contextual language models for predicting typicality scores. |
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Quantifying the Contextualization of Word Representations with Semantic Class Probing (2020.findings-emnlp)
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| Challenge: | Pretrained language models are effective in solving NLP tasks, but there are still questions about how and why they work so well. |
| Approach: | They use BERT to quantify contextualization by studying the extent of inference . they show that top layer representations support highly accurate inference of semantic classes . |
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