no code implementations • EMNLP (WNUT) 2020 • Aparna Balagopalan, Ksenia Shkaruta, Jekaterina Novikova
We find that deletion errors affect detection performance the most, due to their impact on the features of syntactic complexity and discourse representation in speech.
Automatic Speech Recognition Automatic Speech Recognition (ASR) +1
no code implementations • 3 Mar 2024 • Hyewon Jeong, Sarah Jabbour, Yuzhe Yang, Rahul Thapta, Hussein Mozannar, William Jongwon Han, Nikita Mehandru, Michael Wornow, Vladislav Lialin, Xin Liu, Alejandro Lozano, Jiacheng Zhu, Rafal Dariusz Kocielnik, Keith Harrigian, Haoran Zhang, Edward Lee, Milos Vukadinovic, Aparna Balagopalan, Vincent Jeanselme, Katherine Matton, Ilker Demirel, Jason Fries, Parisa Rashidi, Brett Beaulieu-Jones, Xuhai Orson Xu, Matthew McDermott, Tristan Naumann, Monica Agrawal, Marinka Zitnik, Berk Ustun, Edward Choi, Kristen Yeom, Gamze Gursoy, Marzyeh Ghassemi, Emma Pierson, George Chen, Sanjat Kanjilal, Michael Oberst, Linying Zhang, Harvineet Singh, Tom Hartvigsen, Helen Zhou, Chinasa T. Okolo
The organization of the research roundtables at the conference involved 17 Senior Chairs and 19 Junior Chairs across 11 tables.
1 code implementation • 16 Dec 2023 • Hyewon Jeong, Nassim Oufattole, Matthew McDermott, Aparna Balagopalan, Bryan Jangeesingh, Marzyeh Ghassemi, Collin Stultz
In clinical practice, one often needs to identify whether a patient is at high risk of adverse outcomes after some key medical event.
1 code implementation • 9 May 2023 • Aparna Balagopalan, Abigail Z. Jacobs, Asia Biega
Online platforms mediate access to opportunity: relevance-based rankings create and constrain options by allocating exposure to job openings and job candidates in hiring platforms, or sellers in a marketplace.
no code implementations • 6 May 2022 • Aparna Balagopalan, Haoran Zhang, Kimia Hamidieh, Thomas Hartvigsen, Frank Rudzicz, Marzyeh Ghassemi
Across two different blackbox model architectures and four popular explainability methods, we find that the approximation quality of explanation models, also known as the fidelity, differs significantly between subgroups.
no code implementations • 17 Oct 2021 • Zining Zhu, Aparna Balagopalan, Marzyeh Ghassemi, Frank Rudzicz
This framework allows us to compare across datasets, saying that, apart from a set of ``shortcut features'', classifying each sample in the Multi-NLI task involves around 0. 4 nats more TSI than in the Quora Question Pair.
no code implementations • 3 Jun 2021 • Aparna Balagopalan, Jekaterina Novikova
Robust strategies for Alzheimer's disease (AD) detection are important, given the high prevalence of AD.
no code implementations • 12 Nov 2020 • Aparna Balagopalan, Jekaterina Novikova
Fine-tuned Bidirectional Encoder Representations from Transformers (BERT)-based sequence classification models have proven to be effective for detecting Alzheimer's Disease (AD) from transcripts of human speech.
no code implementations • EMNLP (WNUT) 2020 • Benjamin Eyre, Aparna Balagopalan, Jekaterina Novikova
Despite the widely reported success of embedding-based machine learning methods on natural language processing tasks, the use of more easily interpreted engineered features remains common in fields such as cognitive impairment (CI) detection.
no code implementations • 26 Jul 2020 • Aparna Balagopalan, Benjamin Eyre, Frank Rudzicz, Jekaterina Novikova
Research related to automatically detecting Alzheimer's disease (AD) is important, given the high prevalence of AD and the high cost of traditional methods.
no code implementations • 4 Dec 2019 • Aparna Balagopalan, Jekaterina Novikova, Matthew B. A. McDermott, Bret Nestor, Tristan Naumann, Marzyeh Ghassemi
We learn mappings from other languages to English and detect aphasia from linguistic characteristics of speech, and show that OT domain adaptation improves aphasia detection over unilingual baselines for French (6% increased F1) and Mandarin (5% increased F1).
no code implementations • WS 2019 • Jekaterina Novikova, Aparna Balagopalan, Ksenia Shkaruta, Frank Rudzicz
Understanding the vulnerability of linguistic features extracted from noisy text is important for both developing better health text classification models and for interpreting vulnerabilities of natural language models.
no code implementations • 2 Apr 2019 • Aparna Balagopalan, Ksenia Shkaruta, Jekaterina Novikova
We find that deletion errors affect detection performance the most, due to their impact on the features of syntactic complexity and discourse representation in speech.
Alzheimer's Disease Detection Automatic Speech Recognition +2
1 code implementation • 29 Nov 2018 • Aparna Balagopalan, Jekaterina Novikova, Frank Rudzicz, Marzyeh Ghassemi
We analyze the impact of age of the added samples and if they affect fairness in classification.
no code implementations • 8 May 2018 • Aparna Balagopalan, Satya Gorti, Mathieu Ravaut, Raeid Saqur
Although GANs have had a lot of success in producing more realistic images than other approaches, they have only seen limited use for text sequences.