Papers › Phase Conductor on Multi-layered Attentions for Machine Comprehension

Phase Conductor on Multi-layered Attentions for Machine Comprehension

28 Oct 2017ICLR 2018 1arXiv:1710.10504archive 2025-07-28

Rui Liu, Wei Wei, Weiguang Mao, Maria Chikina

Attention models have been intensively studied to improve NLP tasks such as machine comprehension via both question-aware passage attention model and self-matching attention model. Our research proposes phase conductor (PhaseCond) for attention models in two meaningful ways. First, PhaseCond, an architecture of multi-layered attention models, consists of multiple phases each implementing a stack of attention layers producing passage representations and a stack of inner or outer fusion layers regulating the information flow. Second, we extend and improve the dot-product attention function for PhaseCond by simultaneously encoding multiple question and passage embedding layers from different perspectives. We demonstrate the effectiveness of our proposed model PhaseCond on the SQuAD dataset, showing that our model significantly outperforms both state-of-the-art single-layered and multiple-layered attention models. We deepen our results with new findings via both detailed qualitative analysis and visualized examples showing the dynamic changes through multi-layered attention models.

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Tasks

Question AnsweringReading Comprehension

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Question Answering SQuAD1.1 Conductor-net (ensemble) EM 76.996 #104 of 213 Archive leaderboard report
Question Answering SQuAD1.1 Conductor-net (ensemble) F1 84.630 #104 of 213 Archive leaderboard report
Question Answering SQuAD1.1 Conductor-net (single model) EM 74.405 #128 of 213 Archive leaderboard report
Question Answering SQuAD1.1 Conductor-net (single model) F1 82.742 #128 of 213 Archive leaderboard report
Question Answering SQuAD1.1 Conductor-net (single) EM 73.240 #138 of 213 Archive leaderboard report
Question Answering SQuAD1.1 Conductor-net (single) F1 81.933 #138 of 213 Archive leaderboard report
Question Answering SQuAD1.1 dev PhaseCond (single) EM 72.1 #31 of 55 Archive leaderboard report
Question Answering SQuAD1.1 dev PhaseCond (single) F1 81.4 #31 of 55 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

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