Search Results for author: Kostas Stathis

Found 11 papers, 3 papers with code

Towards Explainable Strategy Templates using NLP Transformers

no code implementations23 Nov 2023 Pallavi Bagga, Kostas Stathis

This paper bridges the gap between mathematical heuristic strategies learned from Deep Reinforcement Learning (DRL) in automated agent negotiation, and comprehensible, natural language explanations.

Black-Box Analysis: GPTs Across Time in Legal Textual Entailment Task

no code implementations11 Sep 2023 Ha-Thanh Nguyen, Randy Goebel, Francesca Toni, Kostas Stathis, Ken Satoh

The evolution of Generative Pre-trained Transformer (GPT) models has led to significant advancements in various natural language processing applications, particularly in legal textual entailment.

Natural Language Inference

World of Bugs: A Platform for Automated Bug Detection in 3D Video Games

1 code implementation21 Jun 2022 Benedict Wilkins, Kostas Stathis

We present World of Bugs (WOB), an open platform that aims to support Automated Bug Detection (ABD) research in video games.

Learning to Identify Perceptual Bugs in 3D Video Games

1 code implementation25 Feb 2022 Benedict Wilkins, Kostas Stathis

Automated Bug Detection (ABD) in video games is composed of two distinct but complementary problems: automated game exploration and bug identification.

Supporting Complaints Investigation for Nursing and Midwifery Regulatory Agencies

no code implementations ACL 2021 Piyawat Lertvittayakumjorn, Ivan Petej, Yang Gao, Yamuna Krishnamurthy, Anna Van Der Gaag, Robert Jago, Kostas Stathis

Health professional regulators aim to protect the health and well-being of patients and the public by setting standards for scrutinising and overseeing the training and conduct of health and care professionals.

Decision Making

Learnable Strategies for Bilateral Agent Negotiation over Multiple Issues

no code implementations17 Sep 2020 Pallavi Bagga, Nicola Paoletti, Kostas Stathis

We present a novel bilateral negotiation model that allows a self-interested agent to learn how to negotiate over multiple issues in the presence of user preference uncertainty.

Decision Making

A Metric Learning Approach to Anomaly Detection in Video Games

1 code implementation20 May 2020 Benedict Wilkins, Chris Watkins, Kostas Stathis

With the aim of designing automated tools that assist in the video game quality assurance process, we frame the problem of identifying bugs in video games as an anomaly detection (AD) problem.

Anomaly Detection Atari Games +1

A Deep Reinforcement Learning Approach to Concurrent Bilateral Negotiation

no code implementations31 Jan 2020 Pallavi Bagga, Nicola Paoletti, Bedour Alrayes, Kostas Stathis

We present a novel negotiation model that allows an agent to learn how to negotiate during concurrent bilateral negotiations in unknown and dynamic e-markets.

reinforcement-learning Reinforcement Learning (RL)

Probabilistic Programming with Gaussian Process Memoization

no code implementations17 Dec 2015 Ulrich Schaechtle, Ben Zinberg, Alexey Radul, Kostas Stathis, Vikash K. Mansinghka

Gaussian Processes (GPs) are widely used tools in statistics, machine learning, robotics, computer vision, and scientific computation.

Bayesian Optimization Gaussian Processes +4

Computational Logic Foundations of KGP Agents

no code implementations15 Jan 2014 Antonis Kakas, Paolo Mancarella, Fariba Sadri, Kostas Stathis, Francesca Toni

This paper presents the computational logic foundations of a model of agency called the KGP (Knowledge, Goals and Plan model.

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