Search Results for author: Mehdi Dastani

Found 15 papers, 2 papers with code

Public Sentiment on Governmental COVID-19 Measures in Dutch Social Media

no code implementations EMNLP (NLP-COVID19) 2020 Shihan Wang, Marijn Schraagen, Erik Tjong Kim Sang, Mehdi Dastani

Public sentiment (the opinion, attitude or feeling that the public expresses) is a factor of interest for government, as it directly influences the implementation of policies.

Sentiment Analysis

Fundamental Properties of Causal Entropy and Information Gain

no code implementations2 Feb 2024 Francisco N. F. Q. Simoes, Mehdi Dastani, Thijs van Ommen

These measures, named causal entropy and causal information gain, aim to address limitations in existing information theoretical approaches for machine learning tasks where causality plays a crucial role.

Sample Efficient Reinforcement Learning by Automatically Learning to Compose Subtasks

no code implementations25 Jan 2024 Shuai Han, Mehdi Dastani, Shihan Wang

In this work, we propose an RL algorithm that can automatically structure the reward function for sample efficiency, given a set of labels that signify subtasks.

reinforcement-learning Reinforcement Learning (RL)

Causal Entropy and Information Gain for Measuring Causal Control

no code implementations14 Sep 2023 Francisco Nunes Ferreira Quialheiro Simoes, Mehdi Dastani, Thijs van Ommen

Specifically, we introduce causal versions of entropy and mutual information, termed causal entropy and causal information gain, which are designed to assess how much control a feature provides over the outcome variable.

feature selection Interpretable Machine Learning

Providing personalized Explanations: a Conversational Approach

no code implementations21 Jul 2023 Jieting Luo, Thomas Studer, Mehdi Dastani

The increasing applications of AI systems require personalized explanations for their behaviors to various stakeholders since the stakeholders may have various knowledge and backgrounds.

Rescue Conversations from Dead-ends: Efficient Exploration for Task-oriented Dialogue Policy Optimization

no code implementations5 May 2023 Yangyang Zhao, Zhenyu Wang, Mehdi Dastani, Shihan Wang

When a conversation enters a dead-end state, regardless of the actions taken afterward, it will continue in a dead-end trajectory until the agent reaches a termination state or maximum turn.

Data Augmentation Efficient Exploration

The Complexity of Data-Driven Norm Synthesis and Revision

no code implementations5 Dec 2021 Davide Dell'Anna, Natasha Alechina, Brian Logan, Maarten Löffler, Fabiano Dalpiaz, Mehdi Dastani

In this paper, we consider the problem of synthesising a norm from traces of agent behaviour, where each trace is labelled with whether the behaviour satisfies the system objective.

An Appraisal Transition System for Event-driven Emotions in Agent-based Player Experience Testing

1 code implementation12 May 2021 Saba Gholizadeh Ansari, I. S. W. B. Prasetya, Mehdi Dastani, Frank Dignum, Gabriele Keller

In this paper, we propose an automated player experience testing approach by suggesting a formal model of event-based emotions.

Exploiting Transitivity Constraints for Entity Matching in Knowledge Graphs

no code implementations22 Apr 2021 Jurian Baas, Mehdi Dastani, Ad Feelders

The goal of entity matching in knowledge graphs is to identify entities that refer to the same real-world objects using some similarity metric.

Knowledge Graphs Relation

Using Cognitive Models to Train Warm Start Reinforcement Learning Agents for Human-Computer Interactions

no code implementations10 Mar 2021 Chao Zhang, Shihan Wang, Henk Aarts, Mehdi Dastani

Reinforcement learning (RL) agents in human-computer interactions applications require repeated user interactions before they can perform well.

Position reinforcement-learning +1

Dutch General Public Reaction on Governmental COVID-19 Measures and Announcements in Twitter Data

1 code implementation12 Jun 2020 Shihan Wang, Marijn Schraagen, Erik Tjong Kim Sang, Mehdi Dastani

Given the unprecedented nature of the COVID-19 crisis, having an up-to-date representation of public sentiment on governmental measures and announcements is crucial.

Intention as Commitment toward Time

no code implementations17 Apr 2020 Marc van Zee, Dragan Doder, Leendert van der Torre, Mehdi Dastani, Thomas Icard, Eric Pacuit

The first contribution is a logic for reasoning about intention, time and belief, in which assumptions of intentions are represented by preconditions of intended actions.

Quantified Degrees of Group Responsibility (Extended Abstract)

no code implementations23 Jan 2018 Vahid Yazdanpanah, Mehdi Dastani

This paper builds on an existing notion of group responsibility and proposes two ways to define the degree of group responsibility: structural and functional degrees of responsibility.

Expressibility of norms in temporal logic

no code implementations24 Aug 2016 Natasha Alechina, Mehdi Dastani, Brian Logan

In this short note we address the issue of expressing norms (such as obligations and prohibitions) in temporal logic.

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