Search Results for author: Matthias Scheutz

Found 35 papers, 8 papers with code

A System For Robot Concept Learning Through Situated Dialogue

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.

One-Shot Learning Question Generation +1

Social Norms Guide Reference Resolution

no code implementations NAACL 2022 Mitchell Abrams, Matthias Scheutz

Humans use natural language, vision, and context to resolve referents in their environment.

NovelGym: A Flexible Ecosystem for Hybrid Planning and Learning Agents Designed for Open Worlds

no code implementations7 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.

Autonomous Vehicles Benchmarking +1

A principled approach to model validation in domain generalization

1 code implementation2 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.

Classification Domain Generalization +1

Methods and Mechanisms for Interactive Novelty Handling in Adversarial Environments

no code implementations28 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.

Novelty Detection

Trade-off between reconstruction loss and feature alignment for domain generalization

1 code implementation26 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.

Domain Generalization Transfer Learning

Joint covariate-alignment and concept-alignment: a framework for domain generalization

1 code implementation1 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.

Concept Alignment Domain Generalization

RAPid-Learn: A Framework for Learning to Recover for Handling Novelties in Open-World Environments

1 code implementation24 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).

Transfer Learning

NovelCraft: A Dataset for Novelty Detection and Discovery in Open Worlds

2 code implementations23 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.

Novelty Detection

Conditional entropy minimization principle for learning domain invariant representation features

2 code implementations25 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).

Domain Generalization

Barycentric-alignment and reconstruction loss minimization for domain generalization

1 code implementation4 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.

Domain Generalization Representation Learning

Integrating Planning, Execution and Monitoring in the presence of Open World Novelties: Case Study of an Open World Monopoly Solver

no code implementations9 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.

How Should Agents Ask Questions For Situated Learning? An Annotated Dialogue Corpus

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.

Novel Concepts Question Generation +1

SPOTTER: Extending Symbolic Planning Operators through Targeted Reinforcement Learning

no code implementations24 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.

Decision Making reinforcement-learning +1

Reasoning Requirements for Indirect Speech Act Interpretation

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.

Developing a Corpus of Indirect Speech Act Schemas

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.

Engaging in Dialogue about an Agent's Norms and Behaviors

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.

Augmenting Robot Knowledge Consultants with Distributed Short Term Memory

no code implementations26 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.

Referring Expression Referring expression generation

Sensitivity to Input Order: Evaluation of an Incremental and Memory-Limited Bayesian Cross-Situational Word Learning Model

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.

Quasi-Dilemmas for Artificial Moral Agents

no code implementations6 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.

Interpretable Apprenticeship Learning with Temporal Logic Specifications

no code implementations28 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).

Multiobjective Optimization

Referring Expression Generation under Uncertainty: Algorithm and Evaluation Framework

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.

Referring Expression Referring expression generation +1

AI Challenges in Human-Robot Cognitive Teaming

no code implementations15 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.

The MacGyver Test - A Framework for Evaluating Machine Resourcefulness and Creative Problem Solving

no code implementations26 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.

Creating POS Tagging and Dependency Parsing Experts via Topic Modeling

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.

Dependency Parsing Domain Adaptation +3

Disfluent but effective? A quantitative study of disfluencies and conversational moves in team discourse

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.

Decision Making Spoken Dialogue Systems

Enabling Basic Normative HRI in a Cognitive Robotic Architecture

no code implementations11 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.

Decision Making Position

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