1 code implementation • 27 Mar 2024 • Payam Karisani, Heng Ji
We then focus on the reader component and propose to train it such that it is insensitive towards the order of claims and evidence documents.
no code implementations • 9 Feb 2024 • Amin Karimi Monsefi, Payam Karisani, Mengxi Zhou, Stacey Choi, Nathan Doble, Heng Ji, Srinivasan Parthasarathy, Rajiv Ramnath
In this paper, we introduce a new neural network architecture, termed LoGoNet, with a tailored self-supervised learning (SSL) method to mitigate such challenges.
1 code implementation • 19 Jan 2024 • Hongyi Liu, Qingyun Wang, Payam Karisani, Heng Ji
In our experiments, we observed that such a model is prone to mislabeling the source entities, which can often appear in the text, as the target entities.
1 code implementation • 31 Dec 2023 • Payam Karisani
To overcome this challenge, we propose a hybrid metric to replace the plain confidence measurement.
no code implementations • 5 Apr 2023 • ZiHao Wang, Ali Ahmadvand, Jason Choi, Payam Karisani, Eugene Agichtein
Open-domain conversational search (ODCS) aims to provide valuable, up-to-date information, while maintaining natural conversations to help users refine and ultimately answer information needs.
no code implementations • 9 Nov 2022 • Chen Lin, Safoora Yousefi, Elvis Kahoro, Payam Karisani, Donghai Liang, Jeremy Sarnat, Eugene Agichtein
Most of the prior work relied on modeling pollutant concentrations collected from ground-based monitors and meteorological data for long-term forecasting of outdoor ozone, oxides of nitrogen, and PM2. 5.
1 code implementation • 28 Jan 2022 • Payam Karisani
We present a novel multiple-source unsupervised model for text classification under domain shift.
no code implementations • 5 Dec 2021 • Payam Karisani, Negin Karisani, Li Xiong
Our model has three novelties: 1) It is the first approach to employ multi-view active learning in this domain.
1 code implementation • 30 Sep 2021 • Payam Karisani, Negin Karisani
This set is used to initialize the second classifier, to be further trained by the set of labeled documents.
no code implementations • NAACL (SMM4H) 2021 • Payam Karisani, Jinho D. Choi, Li Xiong
Then a classifier is trained on each view to label a set of unlabeled documents to be used as an initializer for a new classifier in the other view.
no code implementations • 21 Apr 2020 • Payam Karisani, Joyce C. Ho, Eugene Agichtein
Mining social media content for tasks such as detecting personal experiences or events, suffer from lexical sparsity, insufficient training data, and inventive lexicons.
General Classification Semi-Supervised Text Classification +1
1 code implementation • 28 Mar 2020 • Negin Karisani, Payam Karisani
World Health Organization (WHO) characterized the novel coronavirus (COVID-19) as a global pandemic on March 11th, 2020.
2 code implementations • 26 Feb 2018 • Payam Karisani, Eugene Agichtein
The first, critical, task for these applications is classifying whether a personal health event was mentioned, which we call the (PHM) problem.