A Simple and Accurate Syntax-Agnostic Neural Model for Dependency-based Semantic Role Labeling [article]

Diego Marcheggiani, Anton Frolov, Ivan Titov
<span title="2017-06-15">2017</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
We introduce a simple and accurate neural model for dependency-based semantic role labeling. Our model predicts predicate-argument dependencies relying on states of a bidirectional LSTM encoder. The semantic role labeler achieves competitive performance on English, even without any kind of syntactic information and only using local inference. However, when automatically predicted part-of-speech tags are provided as input, it substantially outperforms all previous local models and approaches the
more &raquo; ... best reported results on the English CoNLL-2009 dataset. We also consider Chinese, Czech and Spanish where our approach also achieves competitive results. Syntactic parsers are unreliable on out-of-domain data, so standard (i.e., syntactically-informed) SRL models are hindered when tested in this setting. Our syntax-agnostic model appears more robust, resulting in the best reported results on standard out-of-domain test sets.
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1701.02593v2">arXiv:1701.02593v2</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/6stapn4sojej3lhg373wc5mbau">fatcat:6stapn4sojej3lhg373wc5mbau</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20201001013438/https://arxiv.org/pdf/1701.02593v2.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/a1/c1/a1c11b5a338c8007230b4822145b667ee3f00568.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1701.02593v2" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>