Bipartite Graph Pre-training for Unsupervised Extractive Summarization with Graph Convolutional Auto-Encoders (2023.findings-emnlp)
Copied to clipboard
| Challenge: | Existing methods to rank sentences using pre-trained embeddings create a gap due to different optimization objectives. |
| Approach: | They propose a pre-trained embedding process that optimizes informative sentences . they use sentence-word bipartite graphs to model intra-sentential distinctive features . |
| Outcome: | The proposed model outperforms heavy BERT- or RoBERTa-based sentence ranking methods by providing summary-worthy representations. |
Similar Papers
Unsupervised Extractive Summarization by Pre-training Hierarchical Transformers (2020.findings-emnlp)
Copied to clipboard
| Challenge: | Existing methods for document summarization use graphs and unlabeled documents . Existing models require labeled data, and it is expensive to create summarized documents. |
| Approach: | They propose to rank sentences using transformer attentions and pre-training objectives by unlabeled documents. |
| Outcome: | The proposed model achieves state-of-the-art on unsupervised summarization and is less dependent on sentence positions. |
More Discriminative Sentence Embeddings via Semantic Graph Smoothing (2024.eacl-short)
Copied to clipboard
| Challenge: | Text categorization is a natural language processing task that involves arranging texts into coherent groups based on their content. |
| Approach: | They propose to use semantic graph smoothing to enhance sentence embeddings from pretrained models to improve results for supervised and unsupervised document categorization tasks. |
| Outcome: | The proposed method improves sentences embeddings for supervised and unsupervised document categorization tasks. |
Neural Document Summarization by Jointly Learning to Score and Select Sentences (P18-1)
Copied to clipboard
| Challenge: | Sentence scoring and sentence selection are two main steps in extractive document summarization systems. |
| Approach: | They propose an end-to-end neural network framework for extractive document summarization by jointly learning to score and select sentences. |
| Outcome: | The proposed framework outperforms the state-of-the-art summarization models on the CNN/Daily Mail dataset. |
Considering Nested Tree Structure in Sentence Extractive Summarization with Pre-trained Transformer (2021.emnlp-main)
Copied to clipboard
| Challenge: | Sentence extractive summarization shortens a document by selecting sentences for a summary while preserving its important contents. |
| Approach: | They propose a nested tree-based extractive summarization model on RoBERTa that uses syntactic and discourse trees to represent sentences in a given document. |
| Outcome: | The proposed model outperforms baseline models on the CNN/DailyMail dataset and achieves significantly better scores than the baseline models in terms of coherence and comparable scores to the state-of-the-art models. |
Unsupervised Learning of Sentence Embeddings Using Compositional n-Gram Features (N18-1)
Copied to clipboard
| Challenge: | Currently, unsupervised word embeddings are routinely trained on large amounts of raw text data. |
| Approach: | They propose to use unsupervised word embeddings to train distributed representations of sentences. |
| Outcome: | The proposed method outperforms state-of-the-art models on most benchmark tasks and is robust to the produced general-purpose sentence embeddings. |
TED: A Pretrained Unsupervised Summarization Model with Theme Modeling and Denoising (2020.findings-emnlp)
Copied to clipboard
| Challenge: | Existing abstractive summarization models ignore abundant unlabeled corpora resources . TED outperforms all unsupervised abstractive baselines on NYT, CNN/DM and English Gigaword datasets . |
| Approach: | They propose a transformer-based unsupervised text summarization system with pretraining on large-scale data. |
| Outcome: | The proposed system outperforms baseline models on NYT, CNN/DM and English Gigaword datasets with various document styles. |
A Set Prediction Network For Extractive Summarization (2023.findings-acl)
Copied to clipboard
| Challenge: | Recent approaches to extracting salient sentences from source document are naive and lack dependencies between sentences. |
| Approach: | They propose a set prediction network to detect redundancy relationship between sentences . they use a non-autoregressive decoder to predict sentences in parallel . |
| Outcome: | The proposed method outperforms previous state-of-the-art models on extracted summary datasets. |
DeCLUTR: Deep Contrastive Learning for Unsupervised Textual Representations (2021.acl-long)
Copied to clipboard
| Challenge: | Sentence embeddings are an important component of many natural language processing systems. |
| Approach: | They propose a self-supervised objective for learning universal sentence embeddings that does not require labelled training data. |
| Outcome: | The proposed approach closes the performance gap between unsupervised and supervised pretraining for universal sentence encoders. |
Text Summarization with Pretrained Encoders (D19-1)
Copied to clipboard
| Challenge: | Existing pretraining languages such as ELMo and GPT have advanced a wide range of tasks. |
| Approach: | They propose a novel document-level encoder based on BERT which can express the semantics of a document and obtain representations for its sentences. |
| Outcome: | The proposed model achieves state-of-the-art in extractive and abstractive settings. |
Evaluation Benchmarks and Learning Criteria for Discourse-Aware Sentence Representations (D19-1)
Copied to clipboard
| Challenge: | Prior work on pretrained sentence embeddings and benchmarks focused on the capabilities of stand-alone sentences. |
| Approach: | They propose a test suite of tasks to evaluate whether sentence representations include broader context information. |
| Outcome: | The proposed training objectives help to encode different aspects of information in document structures. |