Mimic and Conquer: Heterogeneous Tree Structure Distillation for Syntactic NLP (2020.findings-emnlp)
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| Challenge: | Existing work on integrating syntactic information into neural networks uses a single tree, such as a constituency or a dependency tree. |
| Approach: | They propose a method to integrate heterogeneous structure knowledge into a unified sequential LSTM encoder. |
| Outcome: | The proposed method outperforms tree encoders on four syntax-dependent tasks and is efficient and accurate. |
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Scalable Syntax-Aware Language Models Using Knowledge Distillation (P19-1)
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| Challenge: | Prior work has shown that syntactic neural language models learn from small amounts of training data more effectively than sequential models. |
| Approach: | They propose a knowledge distillation technique that transfers knowledge from a syntactic language model trained on a small corpus to an LSTM language model and enables it to develop a more structurally sensitive representation of the larger training data. |
| Outcome: | The proposed method improves on baseline syntactic evaluations on LSTMs with a higher level of accuracy than previous methods. |
Why Skip If You Can Combine: A Simple Knowledge Distillation Technique for Intermediate Layers (2020.emnlp-main)
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| Challenge: | Existing knowledge distillation techniques are not suitable for deep learning tasks due to memory constraints. |
| Approach: | They propose to combine knowledge from a large teacher network into a student network (S) they propose to use a combinatorial mechanism to inject layer-level supervision from T to S . |
| Outcome: | The proposed model outperforms existing models in PortugueseEnglish, TurkishEnglish and EnglishGerman directions and students trained using it have 50% fewer parameters and can deliver comparable results to 12-layer teachers. |
HRKD: Hierarchical Relational Knowledge Distillation for Cross-domain Language Model Compression (2021.emnlp-main)
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| Challenge: | Large pre-trained language models (PLMs) have shown overwhelming performances on many tasks, but their large size and slow inference speed have hindered practical deployments. |
| Approach: | They propose a hierarchical relational knowledge distillation method to capture hierarchic and domain relational information. |
| Outcome: | The proposed method outperforms existing methods on multi-domain datasets and is highly reproducible. |
Distillation of encoder-decoder transformers for sequence labelling (2023.findings-eacl)
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| Challenge: | despite the strong trend in NLP to explore the use of large language models, there is still limited work evaluating prompting and decoding mechanisms for SL tasks. |
| Approach: | They propose a hallucination-free framework for sequence tagging that is especially suited for distillation. |
| Outcome: | The proposed framework performs well across multiple sequence labelling datasets and in a few-shot learning scenario. |
Structure-Level Knowledge Distillation For Multilingual Sequence Labeling (2020.acl-main)
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| Challenge: | Existing multilingual models still underperform individual monolingual models due to model capacity limitations. |
| Approach: | They propose to distill the structural knowledge of several monolingual models (teachers) to the unified multilingual model (student). |
| Outcome: | The proposed model outperforms strong baseline models and teacher models on 4 multilingual tasks with 25 datasets and has stronger zero-shot generalizability. |
Iterative Structured Knowledge Distillation: Optimizing Language Models Through Layer-by-Layer Distillation (2025.coling-main)
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| Challenge: | Structured pruning and knowledge distillation are often not efficient and require a fixed architecture, limiting flexibility. |
| Approach: | They propose a method which integrates knowledge distillation and structured pruning by replacing transformer blocks with smaller, efficient versions during training. |
| Outcome: | The proposed method outperforms L1 pruning and maintains four-fifths of performance on language modeling and commonsense reasoning tasks. |
Ensembling and Knowledge Distilling of Large Sequence Taggers for Grammatical Error Correction (2022.acl-long)
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| Challenge: | Currently, machine translation (MT) is the mainstream approach for GEC. |
| Approach: | They propose to ensemble Transformer-based encoders by majority votes on span-level edits . their best ensemble achieves a new SOTA result even without pre-training on synthetic datasets - "Troy-Blogs" and "Try-1BW". |
| Outcome: | The proposed model achieves a new SOTA result even without pre-training on synthetic datasets. |
Distilling Knowledge for Search-based Structured Prediction (P18-1)
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| Challenge: | Existing studies have focused on the performance of structured prediction models, but they are often limited by the ambiguities of the reference policy. |
| Approach: | They propose to distill an ensemble of multiple models trained with different initializations into a single model and use it to explore the search space. |
| Outcome: | The proposed model outperforms the greedy models on two typical search-based structured prediction tasks and achieves 1.32 in LAS and 2.65 in BLEU over strong baselines. |
Multi-Granularity Structural Knowledge Distillation for Language Model Compression (2022.acl-long)
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| Challenge: | Existing methods to transfer knowledge to a small model are not enough to represent the rich semantics of a text. |
| Approach: | They propose to distill the knowledge to a student hierarchically across layers using a large teacher-student framework. |
| Outcome: | Experimental results show that the proposed method outperforms distillation methods on GLUE benchmark. |
Towards Understanding and Improving Knowledge Distillation for Neural Machine Translation (2023.acl-long)
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| Challenge: | Existing knowledge distillation techniques for neural machine translation lack special treatment on the top-1 information, which is limiting the potential of KD. |
| Approach: | They propose a method to distill knowledge from top-1 predictions of teachers and a technique to infuse more additional knowledge by distilling on the data without ground-truth targets. |
| Outcome: | The proposed method outperforms the vanilla word-level KD and outperfies the existing methods on three different students with different capacity gaps. |