| Ensemble Distillation for Unsupervised Constituency Parsing | ✓ Link | 70.4 | 71.9 | | | Ensemble (Generative MBR) | 2023-10-03 |
| Structural Optimization Ambiguity and Simplicity Bias in Unsupervised Neural Grammar Induction | ✓ Link | 69.6 | 70.3 | | | Parse-Focused (NT=4500) | 2024-07-23 |
| Structural Optimization Ambiguity and Simplicity Bias in Unsupervised Neural Grammar Induction | ✓ Link | 67.4 | 68.4 | | | Parse-Focused (NT=30) | 2024-07-23 |
| Improving Unsupervised Constituency Parsing via Maximizing Semantic Information | ✓ Link | 66.92 | | | | SemInfo-SCPCFG (1024NT) | 2024-10-03 |
| Ensemble Distillation for Unsupervised Constituency Parsing | ✓ Link | 66.2 | | | | Ensemble (Selective MBR) | 2023-10-03 |
| Augmenting Transformers with Recursively Composed Multi-grained Representations | ✓ Link | 65.0 | | | | ReCAT | 2023-09-28 |
| Dynamic Programming in Rank Space: Scaling Structured Inference with Low-Rank HMMs and PCFGs | ✓ Link | 64.1 | | | | DP in rank space | 2022-05-01 |
| Co-training an Unsupervised Constituency Parser with Weak Supervision | ✓ Link | 63.1 | 66.8 | 74.2 | | inside-outside co-training + weak supervision | 2021-10-05 |
| On Eliciting Syntax from Language Models via Hashing | ✓ Link | 62.4 | 64.1 | | | Hashing (Parserker 2) | 2024-10-05 |
| Neural Bi-Lexicalized PCFG Induction | ✓ Link | 60.4 | | | | NBL-PCFG | 2021-05-31 |
| PCFGs Can Do Better: Inducing Probabilistic Context-Free Grammars with Many Symbols | ✓ Link | 57.7 | 61.4 | | | TN-PCFG (p=500) | 2021-04-28 |
| Unsupervised Parsing with S-DIORA: Single Tree Encoding for Deep Inside-Outside Recursive Autoencoders | | 57.6 | 63.96 | | 71.8 | S-DIORA | |
| Fast-R2D2: A Pretrained Recursive Neural Network based on Pruned CKY for Grammar Induction and Text Representation | ✓ Link | 57.2 | | | | Fast-R2D2 | 2022-03-01 |
| Unsupervised Latent Tree Induction with Deep Inside-Outside Recursive Auto-Encoders | ✓ Link | 55.7 | 56.2 | | 60.55 | DIORA (+PP) | 2019-06-01 |
| Compound Probabilistic Context-Free Grammars for Grammar Induction | ✓ Link | 55.2 | 60.1 | | 68.8 | Compound PCFG | 2019-06-24 |
| Generative Pretrained Structured Transformers: Unsupervised Syntactic Language Models at Scale | ✓ Link | 55.2 | | | | GPST(left to right parsing) | 2024-03-13 |
| Compound Probabilistic Context-Free Grammars for Grammar Induction | ✓ Link | 50.8 | 52.6 | | | Neural PCFG | 2019-06-24 |
| Unsupervised Latent Tree Induction with Deep Inside-Outside Recursive Auto-Encoders | ✓ Link | 48.9 | 49.6 | 67.7 | 68.5 | DIORA | 2019-06-01 |
| Ordered Neurons: Integrating Tree Structures into Recurrent Neural Networks | ✓ Link | 48.1 | 50.0 | | | ON-LSTM (tuned) | 2018-10-22 |
| Unsupervised Learning of Syntactic Structure with Invertible Neural Projections | ✓ Link | 47.9 | | 60.2 | | DMV + invertible projector | 2018-08-28 |
| Ordered Neurons: Integrating Tree Structures into Recurrent Neural Networks | ✓ Link | 47.7 | 49.4 | 65.1 | 66.8 | ON-LSTM | 2018-10-22 |
| Neural Language Modeling by Jointly Learning Syntax and Lexicon | ✓ Link | 47.3 | 47.9 | | | PRPN (tuned) | 2017-11-02 |
| Unsupervised Recurrent Neural Network Grammars | ✓ Link | | 52.4 | | | URNNG | 2019-04-07 |
| Neural Language Modeling by Jointly Learning Syntax and Lexicon | ✓ Link | | 38.1 | | | PRPN | 2017-11-02 |