1 code implementation • LREC 2022 • Wen Cui, Leanne Rolston, Marilyn Walker, Beth Ann Hockey
These results also demonstrate the remaining performance gap between the baselines and human performance, highlighting the challenges of entity linking in open-domain dialogue, and suggesting many avenues for future research using OpenEL.
no code implementations • 3 Aug 2023 • Omkar Patil, Lena Reed, Kevin K. Bowden, Juraj Juraska, Wen Cui, Vrindavan Harrison, Rishi Rajasekaran, Angela Ramirez, Cecilia Li, Eduardo Zamora, Phillip Lee, Jeshwanth Bheemanpally, Rohan Pandey, Adwait Ratnaparkhi, Marilyn Walker
Conversational agents are consistently growing in popularity and many people interact with them every day.
no code implementations • 9 Mar 2023 • Kevin K. Bowden, Marilyn Walker
There has been an increased focus on creating conversational open-domain dialogue systems in the spoken dialogue community.
no code implementations • 25 Feb 2023 • Jon Z. Cai, Brendan King, Margaret Perkoff, Shiran Dudy, Jie Cao, Marie Grace, Natalia Wojarnik, Ananya Ganesh, James H. Martin, Martha Palmer, Marilyn Walker, Jeffrey Flanigan
DDA combines and adapts features from existing dialogue annotation frameworks, and emphasizes the multi-relational response structure of dialogues in addition to the dialogue acts and rhetorical relations.
1 code implementation • 9 Feb 2023 • Vrindavan Harrison, Rishi Rajasekaran, Marilyn Walker
First, we collect a corpus of Athena conversations with live human traffic, where potential responses from all enabled response generators are logged and subsequently annotated for response quality.
no code implementations • 8 Feb 2023 • Angela Ramirez, Mamon Alsalihy, Kartik Aggarwal, Cecilia Li, Liren Wu, Marilyn Walker
We also test whether NLG personality demonstrations from the restaurant domain can be used with meaning representations for the video game domain to generate personality stylized utterances about video games.
no code implementations • 31 Jan 2023 • Cat P. Le, Luke Dai, Michael Johnston, Yang Liu, Marilyn Walker, Reza Ghanadan
We project these features to the dialogue level and train a dialogue-level MLP regression model, a dialogue-level LSTM, and a novel causal inference model called counterfactual-LSTM (CF-LSTM) to predict ratings.
no code implementations • EMNLP (ACL) 2021 • Juraj Juraska, Kevin K. Bowden, Lena Reed, Vrindavan Harrison, Wen Cui, Omkar Patil, Rishi Rajasekaran, Angela Ramirez, Cecilia Li, Eduardo Zamora, Phillip Lee, Jeshwanth Bheemanpally, Rohan Pandey, Adwait Ratnaparkhi, Marilyn Walker
Athena 2. 0 is an Alexa Prize SocialBot that has been a finalist in the last two Alexa Prize Grand Challenges.
no code implementations • 21 Oct 2021 • Marilyn Walker, Colin Harmon, James Graupera, Davan Harrison, Steve Whittaker
Here we develop a PARADISE model for predicting the performance of Athena, a dialogue system that has participated in thousands of conversations with real users, while competing as a finalist in the Alexa Prize.
no code implementations • 15 Oct 2021 • Lena Reed, Cecilia Li, Angela Ramirez, Liren Wu, Marilyn Walker
We experiment with few-shot prompt-based learning, comparing GPT-Neo to Jurassic-1, for the movies, music, TV, sports, and video game domains, both within and cross-domain, with different prompt set sizes (2, 3, 10), formats, and meaning representations consisting of either sets of WikiData KG triples, or dialogue acts.
1 code implementation • INLG (ACL) 2021 • Juraj Juraska, Marilyn Walker
Ever since neural models were adopted in data-to-text language generation, they have invariably been reliant on extrinsic components to improve their semantic accuracy, because the models normally do not exhibit the ability to generate text that reliably mentions all of the information provided in the input.
no code implementations • 21 Nov 2020 • Vrindavan Harrison, Juraj Juraska, Wen Cui, Lena Reed, Kevin K. Bowden, Jiaqi Wu, Brian Schwarzmann, Abteen Ebrahimi, Rishi Rajasekaran, Nikhil Varghese, Max Wechsler-Azen, Steve Whittaker, Jeffrey Flanigan, Marilyn Walker
This report describes Athena, a dialogue system for spoken conversation on popular topics and current events.
no code implementations • SIGDIAL (ACL) 2020 • Lena Reed, Vrindavan Harrison, Shereen Oraby, Dilek Hakkani-Tur, Marilyn Walker
Here we explore, for the first time, whether it is possible to train an NLG for a new larger ontology using existing training sets for the restaurant domain, where each set is based on a different ontology.
no code implementations • ACL 2020 • Chao Zhao, Marilyn Walker, Snigdha Chaturvedi
Generating sequential natural language descriptions from graph-structured data (e. g., knowledge graph) is challenging, partly because of the structural differences between the input graph and the output text.
no code implementations • WS 2019 • Juraj Juraska, Kevin K. Bowden, Marilyn Walker
The uptake of deep learning in natural language generation (NLG) led to the release of both small and relatively large parallel corpora for training neural models.
Ranked #2 on Data-to-Text Generation on ViGGO
no code implementations • 13 Aug 2019 • Kevin K. Bowden, Jiaqi Wu, Wen Cui, Juraj Juraska, Vrindavan Harrison, Brian Schwarzmann, Nicholas Santer, Steve Whittaker, Marilyn Walker
In contrast, search and general Chit-Chat induced coverage problems; here users found it hard to infer what topics SB could understand, with these conversations seen as being too system-driven.
no code implementations • 22 Jul 2019 • Kevin K. Bowden, Jiaqi Wu, Wen Cui, Juraj Juraska, Vrindavan Harrison, Brian Schwarzmann, Nick Santer, Marilyn Walker
One of the most interesting aspects of the Amazon Alexa Prize competition is that the framing of the competition requires the development of new computational models of dialogue and its structure.
no code implementations • WS 2019 • Vrindavan Harrison, Lena Reed, Shereen Oraby, Marilyn Walker
Neural generation methods for task-oriented dialogue typically generate from a meaning representation that is populated using a database of domain information, such as a table of data describing a restaurant.
1 code implementation • ACL 2019 • Mingyu Derek Ma, Kevin K. Bowden, Jiaqi Wu, Wen Cui, Marilyn Walker
Discourse relation identification has been an active area of research for many years, and the challenge of identifying implicit relations remains largely an unsolved task, especially in the context of an open-domain dialogue system.
Implicit Discourse Relation Classification Implicit Relations +2
no code implementations • ACL 2019 • Shereen Oraby, Vrindavan Harrison, Abteen Ebrahimi, Marilyn Walker
Neural natural language generation (NNLG) from structured meaning representations has become increasingly popular in recent years.
no code implementations • 16 Feb 2019 • Jiaqi Wu, Ryan Compton, Geetanjali Rakshit, Marilyn Walker, Pranav Anand, Steve Whittaker
Our results indicate that generic characteristics are shared between the classes of agency, social and concepts, suggesting it should be possible to build general models for affective classification tasks.
no code implementations • WS 2018 • Juraj Juraska, Marilyn Walker
One of the biggest challenges of end-to-end language generation from meaning representations in dialogue systems is making the outputs more natural and varied.
no code implementations • WS 2018 • Lena Reed, Shereen Oraby, Marilyn Walker
While neural generation methods integrate sentence planning and surface realization in one end-to-end learning framework, previous work has not shown that neural generators can: (1) perform common sentence planning and discourse structuring operations; (2) make decisions as to whether to realize content in a single sentence or over multiple sentences; (3) generalize sentence planning and discourse relation operations beyond what was seen in training.
no code implementations • WS 2018 • Vrindavan Harrison, Marilyn Walker
Our model incorporates linguistic features and an additional sentence embedding to capture meaning at both sentence and word levels.
no code implementations • 5 Sep 2018 • Shereen Oraby, Lena Reed, Sharath TS, Shubhangi Tandon, Marilyn Walker
Natural language generators for task-oriented dialog should be able to vary the style of the output utterance while still effectively realizing the system dialog actions and their associated semantics.
no code implementations • WS 2018 • Zhichao Hu, Jean Fox Tree, Marilyn Walker
Previous work has shown that conversants adapt to many aspects of their partners{'} language.
no code implementations • WS 2018 • Shereen Oraby, Lena Reed, Shubhangi Tandon, T. S. Sharath, Stephanie Lukin, Marilyn Walker
We show that our most explicit model can simultaneously achieve high fidelity to both semantic and stylistic goals: this model adds a context vector of 36 stylistic parameters as input to the hidden state of the encoder at each time step, showing the benefits of explicit stylistic supervision, even when the amount of training data is large.
no code implementations • LREC 2018 • Kevin K. Bowden, Jiaqi Wu, Shereen Oraby, Amita Misra, Marilyn Walker
In dialogue systems, the tasks of named entity recognition (NER) and named entity linking (NEL) are vital preprocessing steps for understanding user intent, especially in open domain interaction where we cannot rely on domain-specific inference.
no code implementations • 4 Jan 2018 • Kevin K. Bowden, Jiaqi Wu, Shereen Oraby, Amita Misra, Marilyn Walker
In this paper we introduce a novel, open domain socialbot for the Amazon Alexa Prize competition, aimed at carrying on friendly conversations with users on a variety of topics.
no code implementations • 31 Oct 2017 • Amita Misra, Shereen Oraby, Shubhangi Tandon, Sharath TS, Pranav Anand, Marilyn Walker
We show that we can identify the most important arguments by using the dialog context with a best F-measure of 0. 74 for gun control, 0. 71 for gay marriage, and 0. 67 for abortion.
no code implementations • WS 2016 • Shereen Oraby, Vrindavan Harrison, Lena Reed, Ernesto Hernandez, Ellen Riloff, Marilyn Walker
The use of irony and sarcasm in social media allows us to study them at scale for the first time.
no code implementations • 15 Sep 2017 • Kevin K. Bowden, Shereen Oraby, Jiaqi Wu, Amita Misra, Marilyn Walker
The greatest challenges in building sophisticated open-domain conversational agents arise directly from the potential for ongoing mixed-initiative multi-turn dialogues, which do not follow a particular plan or pursue a particular fixed information need.
no code implementations • WS 2017 • Shereen Oraby, Vrindavan Harrison, Amita Misra, Ellen Riloff, Marilyn Walker
We present experiments to distinguish between these uses of RQs using SVM and LSTM models that represent linguistic features and post-level context, achieving results as high as 0. 76 F1 for "sarcastic" and 0. 77 F1 for "other" in forums, and 0. 83 F1 for both "sarcastic" and "other" in tweets.
no code implementations • WS 2015 • Shereen Oraby, Lena Reed, Ryan Compton, Ellen Riloff, Marilyn Walker, Steve Whittaker
We investigate the characteristics of factual and emotional argumentation styles observed in online debates.
no code implementations • WS 2017 • Shereen Oraby, Sheideh Homayon, Marilyn Walker
We learn hyperbolic adjective patterns that are representative of the strongly-valenced expressive language commonly used in either positive or negative reviews.
no code implementations • 10 Sep 2017 • Geetanjali Rakshit, Kevin K. Bowden, Lena Reed, Amita Misra, Marilyn Walker
Chatbots are a rapidly expanding application of dialogue systems with companies switching to bot services for customer support, and new applications for users interested in casual conversation.
no code implementations • WS 2013 • Amita Misra, Marilyn Walker
Research on the structure of dialogue has been hampered for years because large dialogue corpora have not been available.
no code implementations • 3 Sep 2017 • Amita Misra, Pranav Anand, Jean E. Fox Tree, Marilyn Walker
What are the CENTRAL PROPOSITIONS associated with different stances on an issue, what are the abstract objects under discussion that are central to a speaker's argument?
no code implementations • 3 Sep 2017 • Amita Misra, Brian Ecker, Theodore Handleman, Nicolas Hahn, Marilyn Walker
Stance classification aims to identify, for a particular issue under discussion, whether the speaker or author of a conversational turn has Pro (Favor) or Con (Against) stance on the issue.
no code implementations • WS 2017 • Grace Lin, Marilyn Walker
Conversation is a critical component of storytelling, where key information is often revealed by what/how a character says it.
no code implementations • ACL 2017 • Lena Reed, Jiaqi Wu, Shereen Oraby, Pranav Anand, Marilyn Walker
Informal first-person narratives are a unique resource for computational models of everyday events and people's affective reactions to them.
no code implementations • WS 2017 • Jiaqi Wu, Marilyn Walker, Pranav Anand, Steve Whittaker
Our goal is to ground the linguistic descriptions of events that users experience in theories of well-being and happiness, and then examine the extent to which different theoretical accounts can explain the variance in the happiness scores.
no code implementations • EACL 2017 • Stephanie M. Lukin, Pranav Anand, Marilyn Walker, Steve Whittaker
Americans spend about a third of their time online, with many participating in online conversations on social and political issues.
no code implementations • WS 2013 • Stephanie Lukin, Marilyn Walker
Our first phase, using crowdsourced nasty indicators, achieves 58% precision and 49% recall, which increases to 75% precision and 62% recall when we bootstrap over the first level with generalized syntactic patterns.
no code implementations • LREC 2016 • Jackson Tolins, Kris Liu, Michael Neff, Marilyn Walker, Jean Fox Tree
We used a novel data collection method where an agent presented story components in installments, which the human would then retell to the agent.
no code implementations • LREC 2016 • Jackson Tolins, Kris Liu, Yingying Wang, Jean E. Fox Tree, Marilyn Walker, Michael Neff
This paper presents a new corpus, the Personality Dyads Corpus, consisting of multimodal data for three conversations between three personality-matched, two-person dyads (a total of 9 separate dialogues).
no code implementations • LREC 2016 • Zhichao Hu, Michelle Dick, Chung-Ning Chang, Kevin Bowden, Michael Neff, Jean Fox Tree, Marilyn Walker
This paper presents a new corpus, the Story Dialogue with Gestures (SDG) corpus, consisting of 50 personal narratives regenerated as dialogues, complete with annotations of gesture placement and accompanying gesture forms.
no code implementations • LREC 2016 • Kris Liu, Jean Fox Tree, Marilyn Walker
The task provides a setting for real-world situated dialogic language and is designed to: (1) elicit entrainment and coordination of referring expressions between the dialogue participants, (2) examine the effect of friendship on dialogue strategies, and (3) examine how the need to complete the task while negotiating myriad, unanticipated events in the real world ― such as avoiding cars and other pedestrians ― affects linguistic coordination and other dialogue behaviors.
no code implementations • LREC 2012 • Marilyn Walker, Jean Fox Tree, Pranav Anand, Rob Abbott, Joseph King
As an application of this resource, the paper closes with a discussion of the relationship between discourse marker pragmatics, agreement, emotionality, and sarcasm in the IAC corpus.
no code implementations • LREC 2012 • Marilyn Walker, Grace Lin, Jennifer Sawyer
We briefly show how film characters can be represented by models learned from the corpus, how the models can be distinguished based on different categories such as gender and film genre, and how they can be applied to a language generator to generate utterances that can be perceived as being similar to the intended character model.