1 code implementation • EMNLP 2021 • Bhavana Dalvi, Peter Jansen, Oyvind Tafjord, Zhengnan Xie, Hannah Smith, Leighanna Pipatanangkura, Peter Clark
Our approach is to generate explanations in the form of entailment trees, namely a tree of multipremise entailment steps from facts that are known, through intermediate conclusions, to the hypothesis of interest (namely the question + answer).
no code implementations • Findings of the Association for Computational Linguistics 2020 • Dheeraj Rajagopal, Niket Tandon, Bhavana Dalvi, Peter Clark, Eduard Hovy
We address the task of explaining the effects of perturbations in procedural text, an important test of process comprehension.
no code implementations • IJCNLP 2019 • T, Niket on, Bhavana Dalvi, Keisuke Sakaguchi, Peter Clark, Antoine Bosselut
We introduce WIQA, the first large-scale dataset of {``}What if...{''} questions over procedural text.
1 code implementation • IJCNLP 2019 • Arman Cohan, Iz Beltagy, Daniel King, Bhavana Dalvi, Daniel S. Weld
As a step toward better document-level understanding, we explore classification of a sequence of sentences into their corresponding categories, a task that requires understanding sentences in context of the document.
1 code implementation • NAACL 2018 • Dongyeop Kang, Waleed Ammar, Bhavana Dalvi, Madeleine van Zuylen, Sebastian Kohlmeier, Eduard Hovy, Roy Schwartz
In the first task, we show that simple models can predict whether a paper is accepted with up to 21% error reduction compared to the majority baseline.
no code implementations • 15 Apr 2018 • Peter Clark, Bhavana Dalvi, Niket Tandon
To supply this knowledge, we leverage VerbNet to build a rulebase (called the Semantic Lexicon) of the preconditions and effects of actions, and use it along with commonsense knowledge of persistence to answer questions about change.
no code implementations • 1 Jul 2013 • Bhavana Dalvi, William W. Cohen, Jamie Callan
In multiclass semi-supervised learning (SSL), it is sometimes the case that the number of classes present in the data is not known, and hence no labeled examples are provided for some classes.
no code implementations • 1 Jul 2013 • Bhavana Dalvi, William W. Cohen, Jamie Callan
We describe a open-domain information extraction method for extracting concept-instance pairs from an HTML corpus.