Search Results for author: Martin C. Cooper

Found 15 papers, 2 papers with code

Feature Necessity & Relevancy in ML Classifier Explanations

1 code implementation27 Oct 2022 Xuanxiang Huang, Martin C. Cooper, Antonio Morgado, Jordi Planes, Joao Marques-Silva

Given a machine learning (ML) model and a prediction, explanations can be defined as sets of features which are sufficient for the prediction.

Provably Precise, Succinct and Efficient Explanations for Decision Trees

1 code implementation19 May 2022 Yacine Izza, Alexey Ignatiev, Nina Narodytska, Martin C. Cooper, Joao Marques-Silva

The paper proposes two logic encodings for computing smallest {\delta}-relevant sets for DTs.

Efficient Explanations for Knowledge Compilation Languages

no code implementations4 Jul 2021 Xuanxiang Huang, Yacine Izza, Alexey Ignatiev, Martin C. Cooper, Nicholas Asher, Joao Marques-Silva

Knowledge compilation (KC) languages find a growing number of practical uses, including in Constraint Programming (CP) and in Machine Learning (ML).

Negation

Efficient Explanations With Relevant Sets

no code implementations1 Jun 2021 Yacine Izza, Alexey Ignatiev, Nina Narodytska, Martin C. Cooper, Joao Marques-Silva

Recent work proposed $\delta$-relevant inputs (or sets) as a probabilistic explanation for the predictions made by a classifier on a given input.

Explaining Naive Bayes and Other Linear Classifiers with Polynomial Time and Delay

no code implementations NeurIPS 2020 Joao Marques-Silva, Thomas Gerspacher, Martin C. Cooper, Alexey Ignatiev, Nina Narodytska

In contrast, we show that the computation of one PI-explanation for an NBC can be achieved in log-linear time, and that the same result also applies to the more general class of linear classifiers.

Strengthening neighbourhood substitution

no code implementations13 Jul 2020 Martin C. Cooper

Domain reduction is an essential tool for solving the constraint satisfaction problem (CSP).

On Singleton Arc Consistency for CSPs Defined by Monotone Patterns

no code implementations20 Apr 2017 Clement Carbonnel, David A. Cohen, Martin C. Cooper, Stanislav Zivny

Singleton arc consistency is an important type of local consistency which has been recently shown to solve all constraint satisfaction problems (CSPs) over constraint languages of bounded width.

General Classification

Simple epistemic planning: generalised gossiping

no code implementations10 Jun 2016 Martin C. Cooper, Andreas Herzig, Faustine Maffre, Frédéric Maris, Pierre Régnier

The gossip problem, in which information (known as secrets) must be shared among a certain number of agents using the minimum number of calls, is of interest in the conception of communication networks and protocols.

The Power of Arc Consistency for CSPs Defined by Partially-Ordered Forbidden Patterns

no code implementations27 Apr 2016 Martin C. Cooper, Stanislav Živný

Characterising tractable fragments of the constraint satisfaction problem (CSP) is an important challenge in theoretical computer science and artificial intelligence.

Variable and value elimination in binary constraint satisfaction via forbidden patterns

no code implementations12 Feb 2015 David A. Cohen, Martin C. Cooper, Guillaume Escamocher, Stanislav Zivny

Variable or value elimination in a constraint satisfaction problem (CSP) can be used in preprocessing or during search to reduce search space size.

On Backdoors To Tractable Constraint Languages

no code implementations14 Apr 2014 Clement Carbonnel, Martin C. Cooper, Emmanuel Hebrard

In the context of CSPs, a strong backdoor is a subset of variables such that every complete assignment yields a residual instance guaranteed to have a specified property.

Tractable Triangles and Cross-Free Convexity in Discrete Optimisation

no code implementations23 Jan 2014 Martin C. Cooper, Stanislav Živný

The minimisation problem of a sum of unary and pairwise functions of discrete variables is a general NP-hard problem with wide applications such as computing MAP configurations in Markov Random Fields (MRF), minimising Gibbs energy, or solving binary Valued Constraint Satisfaction Problems (VCSPs).

The tractability of CSP classes defined by forbidden patterns

no code implementations8 Mar 2011 David A. Cohen, Martin C. Cooper, Páidí Creed, András Z. Salamon

We show that this framework generalises relational properties and allows us to capture known hybrid tractable classes.

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