Title
Soft Layer-Specific Multi-Task Summarization With Entailment And Question Generation
Abstract
An accurate abstractive summary of a document should contain all its salient information and should be logically entailed by the input document. We improve these important aspects of abstractive summarization via multi-task learning with the auxiliary tasks of question generation and entailment generation, where the former teaches the summarization model how to look for salient questioning-worthy details, and the latter teaches the model how to rewrite a summary which is a directed-logical subset of the input document. We also propose novel multitask architectures with high-level (semantic) layer-specific sharing across multiple encoder and decoder layers of the three tasks, as well as soft-sharing mechanisms (and show performance ablations and analysis examples of each contribution). Overall, we achieve statistically significant improvements over the state-of-the-art on both the CNN/DailyMail and Gigaword datasets, as well as on the DUC-2002 transfer setup. We also present several quantitative and qualitative analysis studies of our model's learned saliency and entailment skills.
Year
DOI
Venue
2018
10.18653/v1/P18-1064
ACL (1)
Field
DocType
Volume
Automatic summarization,Logical consequence,Computer science,Salience (neuroscience),Artificial intelligence,Encoder,Natural language processing,Question generation,Salient
Conference
1
Citations 
PageRank 
References 
3
0.55
0
Authors
3
Name
Order
Citations
PageRank
Han Guo112510.98
Ramakanth Pasunuru2253.69
Mohit Bansal387163.19