| Challenge: | Existing systems for semantic proto-role labeling assign binary properties to arguments based on agent-like or patient-like properties. |
| Approach: | They propose to use a deep transformer model to model the performance of semantic proto-role labeling . they propose to include an error analysis to understand correlations between system stages . |
| Outcome: | The proposed system is robust in the presence of predicted arguments, the authors show . the proposed system also reduces annotation errors, the researchers conclude . |
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| Challenge: | Existing models for semantic proto-role labeling are based on a bidirectional LSTM encoding strategy. |
| Approach: | They propose a neural model for semantic proto-role labeling using a bidirectional LSTM encoding strategy that is adapted for the task. |
| Outcome: | The proposed model achieves state-of-the-art in a sentence with a LSTM encoder and a decoder. |
Jointly Predicting Predicates and Arguments in Neural Semantic Role Labeling (P18-2)
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| Challenge: | Recent models that use gold predicates only use a single predicate at a time. |
| Approach: | They propose an end-to-end approach for jointly predicting all predicates, arguments spans, and the relations between them. |
| Outcome: | The proposed model can model overlapping spans across different predicates in the same output structure without gold predicate predications. |
A Full End-to-End Semantic Role Labeler, Syntactic-agnostic Over Syntactic-aware? (C18-1)
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| Challenge: | Existing models for semantic role labeling are syntax-agnostic, but outperform them on benchmarks. |
| Approach: | They propose an end-to-end neural model which tackles the SRL problem in one shot . they augment the encoder with a non-linear transformation to distinguish the predicate and the argument . |
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On the Role of Semantic Proto-roles in Semantic Analysis: What do LLMs know about agency? (2025.findings-acl)
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| Challenge: | Existing studies on large language models (LLMs) have not explored their capacity to reason over event structure . et al., 2015, 142: e007-e0027; eugene, 1985; Weiner, 1995; saab, 1985) focus on the role of large language model in decision-making . |
| Approach: | They propose to characterize agents via properties such as "instigation" and "volition" they also examine whether incorporating semantic proto-role labeling context improves SRL performance . |
| Outcome: | The proposed model improves in a zero-shot setting by incorporating proto-role labeling context . the results support previous work showing that LLMs underperform human annotators in complex semantic analysis. |
Semantic Role Labeling Meets Definition Modeling: Using Natural Language to Describe Predicate-Argument Structures (2022.findings-emnlp)
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| Challenge: | Existing approaches to Semantic Role Labeling rely on discrete labels to classify predicate senses and their arguments. |
| Approach: | They propose a generalized formulation of Semantic Role Labeling that leverages Definition Modeling to describe predicate-argument structures using natural language definitions instead of discrete labels. |
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Capturing Argument Interaction in Semantic Role Labeling with Capsule Networks (D19-1)
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| Challenge: | State-of-the-art SRL models do not model non-local interaction between arguments . e.g., LSTMs do not allow for efficient inference . |
| Approach: | They propose a new approach to model interactions between arguments using capsule networks . they analyze errors in the refinement procedure by capturing intuition in a flexible way . |
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Semantic Role Labeling as Syntactic Dependency Parsing (2020.emnlp-main)
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| Challenge: | Using propBank-style semantic role labeling, we reduce the task to syntactic dependency parsing. |
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| Outcome: | The proposed scheme reduces the task of (span-based) PropBank-style semantic role labeling to syntactic dependency parsing. |
A Span Selection Model for Semantic Role Labeling (D18-1)
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| Challenge: | Existing models for semantic role labeling use BIO tags to predict argument spans . but performance of these approaches is weak . |
| Approach: | They propose a span-based model that takes into account all possible argument spans and scores them for each label. |
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A Unified Syntax-aware Framework for Semantic Role Labeling (D18-1)
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| Challenge: | Syntactic information has been paid a great attention over the role of enhancing SRL . but the gap between syntax-aware and syntax-gnostic SRL is smaller . a new framework proposes syntax-based SRL for a wide range of NLP tasks . |
| Approach: | They propose to extend existing models to investigate more effective ways of incorporating syntax into sequential neural networks. |
| Outcome: | The proposed framework outperforms existing models on CoNLL-2009 benchmarks in English and Chinese. |
Label Definitions Improve Semantic Role Labeling (2022.naacl-main)
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| Challenge: | Existing work on semantic role labeling treats symbolic labels as symbolic . labeled data is costly and often lacking in many tasks, domains, and languages. |
| Approach: | They propose to retrieve and leverage semantic role labels from annotation guidelines . argument classification is at the core of Semantic Role Labeling . |
| Outcome: | The proposed model achieves state-of-the-art on a CoNLL09 dataset injected with label definitions given the predicate senses. |