Challenge: Existing studies on language models for the extraction of semantic relations have focused on injecting semantic knowledge into these models to enhance them.
Approach: They propose to extract lexical semantic relations from a BERT model and inject them into it using unsupervised methods based on semantic similarity at word and sentence levels.
Outcome: The proposed method allows to enrich a BERT model without using any external semantic resource.

Similar Papers

Building Static Embeddings from Contextual Ones: Is It Useful for Building Distributional Thesauri? (2022.lrec-1)

Copied to clipboard

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 .
Outcome: The proposed method can be used to build word or type embeddings from contextual models . it can be exploited for a wide set of English nouns, showing it can improve distributional thesauri .
Analysing Lexical Semantic Change with Contextualised Word Representations (2020.acl-main)

Copied to clipboard

Challenge: Existing studies on lexical semantic change have focused on detecting and characterising word meaning shifts using distributional semantic models.
Approach: They propose a method that exploits the BERT neural language model to obtain representations of word usages, clusters these representations into usage types, and measures change along time with three proposed metrics.
Outcome: The proposed method captures a variety of synchronic and diachronic linguistic phenomena and is highly reproducible and reproducible.
Probing Pretrained Language Models for Lexical Semantics (2020.emnlp-main)

Copied to clipboard

Challenge: Existing studies have focused on morphosyntactic, semantic, and world knowledge, but it remains unclear to what extent LMs derive lexical type-level knowledge from words in context.
Approach: They propose to use multilingual and monolingual LMs to extract lexical type-level knowledge from words in context.
Outcome: The proposed models perform well across six typologically diverse languages and five lexical tasks.
What Does BERT Learn about the Structure of Language? (P19-1)

Copied to clipboard

Challenge: BERT is a language representation model that has performed well in diverse language understanding benchmarks.
Approach: They perform experiments to unpack the elements of English language structure learned by BERT.
Outcome: The proposed model outperforms state-of-the-art models in the GLUE benchmark by a significant margin.
Picking BERT’s Brain: Probing for Linguistic Dependencies in Contextualized Embeddings Using Representational Similarity Analysis (2020.coling-main)

Copied to clipboard

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.
Universal Dependencies According to BERT: Both More Specific and More General (2020.findings-emnlp)

Copied to clipboard

Challenge: Existing studies show that individual BERT heads encode particular dependency relation types, but they do not match one-to-one.
Approach: They propose a method for relation identification and syntactic tree construction that can be applied with minimal supervision and generalizes well across languages.
Outcome: The proposed method produces significantly more consistent dependency trees than previous work and can be applied with only a minimal amount of supervision and generalizes well across languages.
Incorporating medical knowledge in BERT for clinical relation extraction (2021.emnlp-main)

Copied to clipboard

Challenge: Pre-trained language models (PLMs) are used for diverse NLP tasks such as Information Extraction, Sentiment Analysis and Question/Answering.
Approach: They propose to add medical knowledge to pre-trained language models to facilitate clinical relation extraction using a large text corpus.
Outcome: The proposed model outperforms the state-of-the-art systems on the benchmark i2b2/VA 2010 clinical relation extraction dataset.
Finding Universal Grammatical Relations in Multilingual BERT (2020.acl-main)

Copied to clipboard

Challenge: Recent work has found that multilingual masked language models learn a surprising amount of linguistic structure, despite a lack of direct linguistic supervision.
Approach: They propose an unsupervised method to find syntactic tree distances in languages other than English and that these subspaces are approximately shared across languages.
Outcome: The proposed method shows that mBERT learns representations of syntactic dependency labels, in the form of clusters, which largely agree with the Universal Dependencies taxonomy.
A Tour of Explicit Multilingual Semantics: Word Sense Disambiguation, Semantic Role Labeling and Semantic Parsing (2022.aacl-tutorials)

Copied to clipboard

Challenge: a recent advent of pretrained language models has sparked a revolution in NLP . but, there are still questions about whether current approaches capture explicit, symbolic meaning . this tutorial will review efforts to tackle three key open problems in lexical and sentence-level semantics .
Approach: This tutorial reviews recent efforts to shed light on meaning in NLP . it will focus on three key open problems in lexical and sentence-level semantics .
Outcome: This tutorial reviews recent efforts to shed light on meaning in NLP . it focuses on three key open problems in lexical and sentence-level semantics .
From BERT‘s Point of View: Revealing the Prevailing Contextual Differences (2022.findings-acl)

Copied to clipboard

Challenge: BERTology is a new approach to understanding the inner workings of large pretraining language models.
Approach: They propose to invert the probing design to analyze the prevailing differences and clusters in BERT’s high dimensional space by extracting coarse features from masked token representations and predicting them by probing models with access to only partial information.
Outcome: The proposed method extracts coarse features from masked token representations and predicts them by probing models with access to only partial information.

What is GenGO?

GenGO is an NLP powered publication search system. It currenctly indexes 30k+ papers from ACL Anthology, and implements multi-aspect summarization, semantic search, and more!

Information

About
Limitations