Challenge: Multi-task learning (MTL) has been studied for sequence labeling tasks . auxiliary tasks are selected specifically to improve performance of a target task .
Approach: They propose a shared-cell long-short-term memory cell which contains shared parameters that can learn from all tasks and task-specific parameters that could learn task-related information.
Outcome: The proposed model can learn from all tasks and task-specific parameters.

Similar Papers

Multi-Task Learning for Sequence Tagging: An Empirical Study (C18-1)

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Challenge: Existing work on "pairwise" MTL has been validated in sequence tagging but key issues remain about its effectiveness.
Approach: They propose three general multi-task learning approaches on 11 sequence tagging tasks.
Outcome: The proposed approaches improve on 11 sequence tagging tasks.
Sequence Labeling Parsing by Learning across Representations (P19-1)

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Challenge: Constituency and dependency parsing are the main abstractions for representing syntactic structure of sentences . constituency parsers are considered disjointed tasks, and their improvements have been obtained separately.
Approach: They propose to add auxiliary loss to constituency parsing paradigms and explore a model that parses both paradigms at no cost.
Outcome: The proposed model outperforms single-task models by 1.05 F1 points and 0.62 UAS points for constituency parsing and dependency parsers.
Estimating the influence of auxiliary tasks for multi-task learning of sequence tagging tasks (2020.acl-main)

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Challenge: Multitask learning and transfer learning are techniques to overcome data scarcity . finding suitable auxiliary datasets for multitask learning is a trial-and-error approach .
Approach: They propose to automatically assess the similarity of sequence tagging datasets to identify beneficial auxiliary data for MTL or TL setups.
Outcome: The proposed methods can compute similarity between two sequence tagging datasets . they show that the same measures correlate with the change in test score of the auxiliary dataset .
Multi-Task Representation Alignment on Language Understanding: A Mutual Information Perspective (2026.acl-long)

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Challenge: Existing approaches to multitask learning fail to address task interference issues . Existing methods focus on task balancing or probabilistic modeling but fail to learn sufficient representations for all target tasks.
Approach: They propose a multi-task representation alignment framework to achieve task-specific alignment and self-alignment on shared representations from a mutual information perspective.
Outcome: The proposed framework outperforms 13 representative MTL methods under label-noisy and data-constrained conditions.
A Survey of Multi-task Learning in Natural Language Processing: Regarding Task Relatedness and Training Methods (2023.eacl-main)

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Challenge: Multi-task learning is a popular approach in natural language processing because of its commonalities and differences.
Approach: They propose to summarize recent advances in multi-task learning methods based on their task relatedness into two general multi-step training methods.
Outcome: The proposed methods summarize the tasks and discuss future directions.
Multi-Cell Compositional LSTM for NER Domain Adaptation (2020.acl-main)

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Challenge: Named entity recognition (NER) is a challenging but practical problem.
Approach: They propose a multi-cell compositional LSTM structure for multi-task learning . they model each entity type using a separate cell state .
Outcome: Empirical results show that the proposed method outperforms multi-task learning methods and achieves the best results.
A Learnable Skill Combination Strategy for Multi-task Learning in Natural Language Understanding (2026.findings-acl)

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Challenge: a novel multi-task learning framework for domain-specific natural language understanding tasks addresses these limitations by combing multiple tasks into a single framework.
Approach: They propose a multi-task learning framework that decomposes the language model into modular skill components and employs a dynamic, learnable skill-combination mechanism to adaptively handle diverse tasks.
Outcome: The proposed framework surpasses conventional multi-task learning approaches in performance.
Adaptive Knowledge Sharing in Multi-Task Learning: Improving Low-Resource Neural Machine Translation (P18-2)

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Challenge: Neural Machine Translation (NMT) requires large amounts of bilingual data to learn a translation model with reasonable quality.
Approach: They propose to extend recurrent units with multiple "blocks" along with a trainable "routing network" this allows for adaptive collaboration by dynamic sharing of blocks conditioned on the task at hand, input, and model state.
Outcome: Empirical evaluations of two low-resource translation tasks show +1 BLEU score improvements compared to strong baselines.
Bag-of-Words Transfer: Non-Contextual Techniques for Multi-Task Learning (D19-61)

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Challenge: Existing approaches to multi-task learning take advantage of transfer among tasks . generative reconstruction of the observations is not included in the standard framework .
Approach: They propose to use a syntactically-oblivious pooling encoder and pre-trained word embeddings to improve sentence-level representations.
Outcome: The proposed techniques yield similar performance on a universe of task combinations while reducing training time and model size.
Towards Better Multi-task Learning: A Framework for Optimizing Dataset Combinations in Large Language Models (2025.findings-naacl)

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Challenge: Using a neural network, large language models can be trained on multiple tasks, allowing them to perform tasks efficiently.
Approach: They propose a framework that leverages a neural network to select the best dataset combinations for enhancing multi-task learning (MTL) They propose to iteratively refine the selection, greatly improving efficiency while being model-, dataset-, and domain-independent.
Outcome: The proposed framework iteratively refines the selection, greatly improving efficiency, while being model-, dataset-, and domain-independent.

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