Challenge: Existing Distantly Supervised Relation Extraction models rely on task-specific training, but their integration with in-context learning (ICL) using large language models (LLMs) remains underexplored.
Approach: They propose a framework for distantly supervised relation extraction that uses a trained DSRE model to identify the top-k candidate relations for a given test sentence and a dynamic exemplar retrieval strategy that extracts reliable, sentence-level exemplars from training data.
Outcome: The proposed framework achieves 20 F1 points gains in English and 17 F1 point gains on Indic languages over previous models and naive prompting baselines.

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HiCLRE: A Hierarchical Contrastive Learning Framework for Distantly Supervised Relation Extraction (2022.findings-acl)

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Challenge: Existing approaches of distantly supervised relation extraction (DSRE) focus on sentence-level or bag-level de-noising, neglecting the explicit interaction with cross levels.
Approach: They propose a hierarchical contrastive learning framework for distantly supervised relation extraction to reduce noisy sentences.
Outcome: The proposed framework outperforms baselines in various mainstream DSRE datasets.
Semi-automatic Data Enhancement for Document-Level Relation Extraction with Distant Supervision from Large Language Models (2023.emnlp-main)

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Challenge: Document-level Relation Extraction (DocRE) is a task that aims to extract relations from a long context.
Approach: They propose an automated annotation method that integrates an LLM and a natural language inference module to generate relation triples.
Outcome: The proposed method can extract relations from document-level relation datasets with minimal human effort.
PARE: A Simple and Strong Baseline for Monolingual and Multilingual Distantly Supervised Relation Extraction (2022.acl-short)

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Challenge: Recent approaches to distantly supervised relation extraction (DS-RE) encode each sentence in an entity-pair bag separately.
Approach: They propose a simple baseline approach where sentences of a bag are concatenated into a passage of sentences and encoded jointly using BERT.
Outcome: The proposed approach outperforms state-of-the-art models in monolingual and multilingual datasets.
Denoising Relation Extraction from Document-level Distant Supervision (2020.emnlp-main)

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Challenge: Existing methods to generate auto-labeled sentences for relation extraction (RE) are difficult to extend to document-level relation extraction as noise from DS may be even multiplied in documents.
Approach: They propose a pre-trained model which de-emphasizes noisy DS data via multiple pre-training tasks.
Outcome: The proposed model can capture useful information from noisy data and achieve promising results on the large-scale DocRE benchmark.
Noise-Robust Semi-Supervised Learning for Distantly Supervised Relation Extraction (2023.findings-emnlp)

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Challenge: Distantly supervised relation extraction (DSRE) methods are not capable of extracting relation labels for individual sentences.
Approach: They propose a semi-supervised learning relation extraction framework for sentence-level DSRE . they discard only the labels of the noisy samples and utilize them as unlabeled samples .
Outcome: The proposed framework achieves significant performance enhancements on two real-world datasets.
SENT: Sentence-level Distant Relation Extraction via Negative Training (2021.acl-long)

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Challenge: Existing methods for relation extraction use bag labels, which introduce noise, to train the model.
Approach: They propose to use negative training to train a model using complementary labels to separate the noisy data from the training data.
Outcome: The proposed method improves on previous methods on sentence-level evaluation and de-noise effect.
ToHRE: A Top-Down Classification Strategy with Hierarchical Bag Representation for Distantly Supervised Relation Extraction (2020.coling-main)

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Challenge: Existing methods to find relational facts from texts lack hierarchical information of relations.
Approach: They propose a hierarchical classification framework which extracts relation in a top-down manner.
Outcome: The proposed method significantly outperforms state-of-the-art methods on NYT dataset . the proposed method generates large amounts of training data by aligning KBs with unlabeled corpora .
AutoRE: Document-Level Relation Extraction with Large Language Models (2024.acl-demos)

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Challenge: Existing methods for relation extraction are limited to Sentence-level Relation Extraction (SentRE) tasks.
Approach: They propose an end-to-end DocRE model that adopts a novel RE extraction paradigm named RHF (Relation-Head-Facts) Unlike existing approaches, AutoRE does not rely on the assumption of known relation options, making it more reflective of real-world scenarios.
Outcome: The proposed model surpasses TAG by 10.03% and 9.03% on the dev and test set.
Incorporating Global Contexts into Sentence Embedding for Relational Extraction at the Paragraph Level with Distant Supervision (L18-1)

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Challenge: Existing approaches to relation extraction (RE) only extract relations from sentences that contain two target entities.
Approach: They propose to incorporate global contexts from paragraph-into-sentence embedding into RE . they propose to use a knowledge base to extract relations between pairs of entities .
Outcome: The proposed approach can learn an exact RE from sentences without syntactic parsing.
Fine-tuning Pre-Trained Transformer Language Models to Distantly Supervised Relation Extraction (P19-1)

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Challenge: Current relation extraction methods suffer from noisy labels and incomplete knowledge base information.
Approach: They propose a pre-trained language model that captures semantic and syntactic features and a significant amount of “common-sense” knowledge.
Outcome: The proposed model achieves state-of-the-art AUC score of 0.422 on the NYT10 dataset and performs especially well at higher recall levels.

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