no code implementations • SIGDIAL (ACL) 2022 • Benjamin Kane, Felix Gervits, Matthias Scheutz, Matthew Marge
We evaluate the system by comparing learning efficiency to a human baseline in a collaborative reference resolution task and show that the system is effective and efficient in learning new concepts, and that it can informatively generate explanations about its behavior.
no code implementations • SIGDIAL (ACL) 2020 • Felix Gervits, Ravenna Thielstrom, Antonio Roque, Matthias Scheutz
Turn-entry timing is an important requirement for conversation, and one that spoken dialogue systems largely fail at.
no code implementations • NAACL 2022 • Mitchell Abrams, Matthias Scheutz
Humans use natural language, vision, and context to resolve referents in their environment.
no code implementations • ACL (NL4XAI, INLG) 2020 • Ravenna Thielstrom, Antonio Roque, Meia Chita-Tegmark, Matthias Scheutz
We then describe an evaluation that can be extended to further study the effects of varying the explanation templates.
no code implementations • 7 Jan 2024 • Shivam Goel, Yichen Wei, Panagiotis Lymperopoulos, Matthias Scheutz, Jivko Sinapov
To this end, we introduce NovelGym, a flexible and adaptable ecosystem designed to simulate gridworld environments, serving as a robust platform for benchmarking reinforcement learning (RL) and hybrid planning and learning agents in open-world contexts.
1 code implementation • 2 Apr 2023 • Boyang Lyu, Thuan Nguyen, Matthias Scheutz, Prakash Ishwar, Shuchin Aeron
Domain generalization aims to learn a model with good generalization ability, that is, the learned model should not only perform well on several seen domains but also on unseen domains with different data distributions.
no code implementations • 28 Feb 2023 • Tung Thai, Ming Shen, Mayank Garg, Ayush Kalani, Nakul Vaidya, Utkarsh Soni, Mudit Verma, Sriram Gopalakrishnan, Neeraj Varshney, Chitta Baral, Subbarao Kambhampati, Jivko Sinapov, Matthias Scheutz
Learning to detect, characterize and accommodate novelties is a challenge that agents operating in open-world domains need to address to be able to guarantee satisfactory task performance.
1 code implementation • 26 Oct 2022 • Thuan Nguyen, Boyang Lyu, Prakash Ishwar, Matthias Scheutz, Shuchin Aeron
To deal with challenging settings in DG where both data and label of the unseen domain are not available at training time, the most common approach is to design the classifiers based on the domain-invariant representation features, i. e., the latent representations that are unchanged and transferable between domains.
1 code implementation • 1 Aug 2022 • Thuan Nguyen, Boyang Lyu, Prakash Ishwar, Matthias Scheutz, Shuchin Aeron
Particularly, our framework proposes to jointly minimize both the covariate-shift as well as the concept-shift between the seen domains for a better performance on the unseen domain.
1 code implementation • 24 Jun 2022 • Shivam Goel, Yash Shukla, Vasanth Sarathy, Matthias Scheutz, Jivko Sinapov
We propose RAPid-Learn: Learning to Recover and Plan Again, a hybrid planning and learning method, to tackle the problem of adapting to sudden and unexpected changes in an agent's environment (i. e., novelties).
2 code implementations • 23 Jun 2022 • Patrick Feeney, Sarah Schneider, Panagiotis Lymperopoulos, Li-Ping Liu, Matthias Scheutz, Michael C. Hughes
In order for artificial agents to successfully perform tasks in changing environments, they must be able to both detect and adapt to novelty.
2 code implementations • 25 Jan 2022 • Thuan Nguyen, Boyang Lyu, Prakash Ishwar, Matthias Scheutz, Shuchin Aeron
Invariance-principle-based methods such as Invariant Risk Minimization (IRM), have recently emerged as promising approaches for Domain Generalization (DG).
no code implementations • 12 Oct 2021 • Felix Gervits, Gordon Briggs, Antonio Roque, Genki A. Kadomatsu, Dean Thurston, Matthias Scheutz, Matthew Marge
Dialogue agents that interact with humans in situated environments need to manage referential ambiguity across multiple modalities and ask for help as needed.
1 code implementation • 4 Sep 2021 • Boyang Lyu, Thuan Nguyen, Prakash Ishwar, Matthias Scheutz, Shuchin Aeron
To bridge this gap between theory and practice, we introduce a new upper bound that is free of terms having such dual dependence, resulting in a fully optimizable risk upper bound for the unseen domain.
no code implementations • 9 Jul 2021 • Sriram Gopalakrishnan, Utkarsh Soni, Tung Thai, Panagiotis Lymperopoulos, Matthias Scheutz, Subbarao Kambhampati
The game of monopoly is an adversarial multi-agent domain where there is no fixed goal other than to be the last player solvent, There are useful subgoals like monopolizing sets of properties, and developing them.
1 code implementation • SIGDIAL (ACL) 2021 • Felix Gervits, Antonio Roque, Gordon Briggs, Matthias Scheutz, Matthew Marge
Intelligent agents that are confronted with novel concepts in situated environments will need to ask their human teammates questions to learn about the physical world.
no code implementations • 24 Dec 2020 • Vasanth Sarathy, Daniel Kasenberg, Shivam Goel, Jivko Sinapov, Matthias Scheutz
Symbolic planning models allow decision-making agents to sequence actions in arbitrary ways to achieve a variety of goals in dynamic domains.
no code implementations • COLING 2020 • Vasanth Sarathy, Alexander Tsuetaki, Antonio Roque, Matthias Scheutz
We perform a corpus analysis to develop a representation of the knowledge and reasoning used to interpret indirect speech acts.
no code implementations • LREC 2020 • Antonio Roque, Alex Tsuetaki, er, Vasanth Sarathy, Matthias Scheutz
Resolving Indirect Speech Acts (ISAs), in which the intended meaning of an utterance is not identical to its literal meaning, is essential to enabling the participation of intelligent systems in peoples{'} everyday lives.
no code implementations • WS 2019 • Daniel Kasenberg, Antonio Roque, Ravenna Thielstrom, Meia Chita-Tegmark, Matthias Scheutz
We present an approach to generating natural language justifications of decisions derived from norm-based reasoning.
no code implementations • WS 2019 • Daniel Kasenberg, Antonio Roque, Ravenna Thielstrom, Matthias Scheutz
We present a set of capabilities allowing an agent planning with moral and social norms represented in temporal logic to respond to queries about its norms and behaviors in natural language, and for the human user to add and remove norms directly in natural language.
no code implementations • 26 Nov 2018 • Tom Williams, Ravenna Thielstrom, Evan Krause, Bradley Oosterveld, Matthias Scheutz
In previous work, we developed a Consultant Framework that facilitates modality-agnostic access to information distributed across a set of heterogeneously represented knowledge sources.
no code implementations • COLING 2018 • Sepideh Sadeghi, Matthias Scheutz
We present a variation of the incremental and memory-limited algorithm in (Sadeghi et al., 2017) for Bayesian cross-situational word learning and evaluate the model in terms of its functional performance and its sensitivity to input order.
no code implementations • 6 Jul 2018 • Daniel Kasenberg, Vasanth Sarathy, Thomas Arnold, Matthias Scheutz, Tom Williams
In this paper we describe moral quasi-dilemmas (MQDs): situations similar to moral dilemmas, but in which an agent is unsure whether exploring the plan space or the world may reveal a course of action that satisfies all moral requirements.
no code implementations • WS 2018 • Felix Gervits, Matthias Scheutz
Speech overlap is a common phenomenon in natural conversation and in task-oriented interactions.
no code implementations • 28 Oct 2017 • Daniel Kasenberg, Matthias Scheutz
Recent work has addressed using formulas in linear temporal logic (LTL) as specifications for agents planning in Markov Decision Processes (MDPs).
no code implementations • WS 2017 • Tom Williams, Matthias Scheutz
For situated agents to effectively engage in natural-language interactions with humans, they must be able to refer to entities such as people, locations, and objects.
no code implementations • 15 Jul 2017 • Tathagata Chakraborti, Subbarao Kambhampati, Matthias Scheutz, Yu Zhang
Among the many anticipated roles for robots in the future is that of being a human teammate.
no code implementations • 26 Apr 2017 • Vasanth Sarathy, Matthias Scheutz
Current measures of machine intelligence are either difficult to evaluate or lack the ability to test a robot's problem-solving capacity in open worlds.
no code implementations • EACL 2017 • Atreyee Mukherjee, S K{\"u}bler, ra, Matthias Scheutz
Part of speech (POS) taggers and dependency parsers tend to work well on homogeneous datasets but their performance suffers on datasets containing data from different genres.
no code implementations • COLING 2016 • Felix Gervits, Kathleen Eberhard, Matthias Scheutz
The purpose of this paper is to address those gaps in the following ways: (1) investigate which properties of task-oriented discourse correspond with effective performance in human teams, and (2) discuss how and to what extent these properties can be utilized in spoken dialogue systems.
no code implementations • 11 Feb 2016 • Vasanth Sarathy, Jason R. Wilson, Thomas Arnold, Matthias Scheutz
Collaborative human activities are grounded in social and moral norms, which humans consciously and subconsciously use to guide and constrain their decision-making and behavior, thereby strengthening their interactions and preventing emotional and physical harm.