no code implementations • SIGDIAL (ACL) 2020 • Siqi Shen, Charles Welch, Rada Mihalcea, Verónica Pérez-Rosas
We introduce a counseling dialogue system that seeks to assist counselors while they are learning and refining their counseling skills.
1 code implementation • WASSA (ACL) 2022 • Allison Lahnala, Charles Welch, Lucie Flek
We build a system that leverages adapters, a light weight and efficient method for leveraging large language models to perform the task Em- pathy and Distress prediction tasks for WASSA 2022.
no code implementations • ACL 2022 • Siqi Shen, Veronica Perez-Rosas, Charles Welch, Soujanya Poria, Rada Mihalcea
We propose a pipeline that collects domain knowledge through web mining, and show that retrieval from both domain-specific and commonsense knowledge bases improves the quality of generated responses.
no code implementations • ACL 2022 • Charles Welch, Chenxi Gu, Jonathan Kummerfeld, Veronica Perez-Rosas, Rada Mihalcea
Personalized language models are designed and trained to capture language patterns specific to individual users.
1 code implementation • 24 Jan 2025 • Olufunke O. Sarumi, Charles Welch, Lucie Flek, Jörg Schlötterer
In this work, we evaluate annotator disagreement in Word-in-Context (WiC) tasks exploring the relationship between contextual meaning and disagreement as part of the CoMeDi shared task competition.
no code implementations • 24 Jan 2025 • Allison Lahnala, Charles Welch, David Jurgens, Lucie Flek
Conceptual operationalizations of empathy in NLP are varied, with some having specific behaviors and properties, while others are more abstract.
no code implementations • 8 Jul 2024 • Shangrui Nie, Michael Fromm, Charles Welch, Rebekka Görge, Akbar Karimi, Joan Plepi, Nazia Afsan Mowmita, Nicolas Flores-Herr, Mehdi Ali, Lucie Flek
While preliminary findings indicate that multilingual LLMs exhibit reduced bias compared to monolingual ones, a comprehensive understanding of the effect of multilingual training on bias mitigation, is lacking.
1 code implementation • 27 Jun 2024 • Ondrej Sotolar, Vojtech Formanek, Alok Debnath, Allison Lahnala, Charles Welch, Lucie Flek
We propose a novel approach where we construct theory-driven preference datasets based on emotion grounding and use them to align LLMs with preference optimization algorithms to address these challenges.
1 code implementation • 2 Apr 2024 • Olufunke O. Sarumi, Béla Neuendorf, Joan Plepi, Lucie Flek, Jörg Schlötterer, Charles Welch
We introduce a composite embedding approach and show distinct differences in which model performs best as a function of the agreement with a given dataset.
no code implementations • 1 Nov 2023 • Gilles Nawezi, Lucie Flek, Charles Welch
Nearest neighbor models have been explored for controllable generation but have not examined the use of locality levels.
no code implementations • 28 Aug 2023 • Fabian Lechner, Allison Lahnala, Charles Welch, Lucie Flek
The potential to provide patients with faster information access while allowing medical specialists to concentrate on critical tasks makes medical domain dialog agents appealing.
no code implementations • 29 Oct 2022 • Allison Lahnala, Charles Welch, David Jurgens, Lucie Flek
We review the state of research on empathy in natural language processing and identify the following issues: (1) empathy definitions are absent or abstract, which (2) leads to low construct validity and reproducibility.
no code implementations • 27 Oct 2022 • Severino Trotta, Lucie Flek, Charles Welch
Recent language modeling performance has been greatly improved by the use of external memory.
1 code implementation • 26 Oct 2022 • Joan Plepi, Béla Neuendorf, Lucie Flek, Charles Welch
Instead of using a single ground truth for language processing tasks, several recent studies have examined how to represent and predict the labels of the set of annotators.
1 code implementation • 18 Aug 2022 • Charles Welch, Joan Plepi, Béla Neuendorf, Lucie Flek
Studies on interpersonal conflict have a long history and contain many suggestions for conflict typology.
no code implementations • NAACL 2022 • Allison Lahnala, Charles Welch, Béla Neuendorf, Lucie Flek
Large pre-trained neural language models have supported the effectiveness of many NLP tasks, yet are still prone to generating toxic language hindering the safety of their use.
no code implementations • 15 Oct 2021 • Kim Breitwieser, Allison Lahnala, Charles Welch, Lucie Flek, Martin Potthast
We introduce the problem of proficiency modeling: Given a user's posts on a social media platform, the task is to identify the subset of posts or topics for which the user has some level of proficiency.
1 code implementation • Findings (ACL) 2021 • Allison Lahnala, Yuntian Zhao, Charles Welch, Jonathan K. Kummerfeld, Lawrence An, Kenneth Resnicow, Rada Mihalcea, Verónica Pérez-Rosas
A growing number of people engage in online health forums, making it important to understand the quality of the advice they receive.
no code implementations • COLING 2020 • Charles Welch, Jonathan K. Kummerfeld, Verónica Pérez-Rosas, Rada Mihalcea
Our results show that a subset of words belonging to specific psycholinguistic categories tend to vary more in their representations across users and that combining generic and personalized word embeddings yields the best performance, with a 4. 7% relative reduction in perplexity.
1 code implementation • EMNLP 2020 • Charles Welch, Jonathan K. Kummerfeld, Verónica Pérez-Rosas, Rada Mihalcea
Word embeddings are usually derived from corpora containing text from many individuals, thus leading to general purpose representations rather than individually personalized representations.
1 code implementation • EMNLP 2020 • Charles Welch, Rada Mihalcea, Jonathan K. Kummerfeld
In the process, we show that the standard convention of tying input and output embeddings does not improve perplexity when initializing with embeddings trained on in-domain data.
no code implementations • EMNLP (NLP-COVID19) 2020 • Charles Welch, Allison Lahnala, Verónica Pérez-Rosas, Siqi Shen, Sarah Seraj, Larry An, Kenneth Resnicow, James Pennebaker, Rada Mihalcea
The ongoing COVID-19 pandemic has raised concerns for many regarding personal and public health implications, financial security and economic stability.
1 code implementation • 25 Apr 2019 • Charles Welch, Verónica Pérez-Rosas, Jonathan K. Kummerfeld, Rada Mihalcea
We examine a large dialog corpus obtained from the conversation history of a single individual with 104 conversation partners.
no code implementations • COLING 2016 • Charles Welch, Rada Mihalcea
We address the task of targeted sentiment as a means of understanding the sentiment that students hold toward courses and instructors, as expressed by students in their comments.