Search Results for author: Erman Acar

Found 15 papers, 6 papers with code

PFStorer: Personalized Face Restoration and Super-Resolution

no code implementations13 Mar 2024 Tuomas Varanka, Tapani Toivonen, Soumya Tripathy, Guoying Zhao, Erman Acar

In our approach a restoration model is personalized using a few images of the identity, leading to tailored restoration with respect to the identity while retaining fine-grained details.

Super-Resolution

On the Potential of Network-Based Features for Fraud Detection

no code implementations14 Feb 2024 Catayoun Azarm, Erman Acar, Mickey van Zeelt

Online transaction fraud presents substantial challenges to businesses and consumers, risking significant financial losses.

Feature Importance Fraud Detection

Emergent Cooperation under Uncertain Incentive Alignment

no code implementations23 Jan 2024 Nicole Orzan, Erman Acar, Davide Grossi, Roxana Rădulescu

Understanding the emergence of cooperation in systems of computational agents is crucial for the development of effective cooperative AI.

Explainable Fraud Detection with Deep Symbolic Classification

1 code implementation1 Dec 2023 Samantha Visbeek, Erman Acar, Floris den Hengst

There is a growing demand for explainable, transparent, and data-driven models within the domain of fraud detection.

Classification Fraud Detection +1

AI4GCC - Team: Below Sea Level: Critiques and Improvements

no code implementations26 Jul 2023 Bram Renting, Phillip Wozny, Robert Loftin, Claudia Wieners, Erman Acar

We present a critical analysis of the simulation framework RICE-N, an integrated assessment model (IAM) for evaluating the impacts of climate change on the economy.

AI4GCC-Team -- Below Sea Level: Score and Real World Relevance

no code implementations26 Jul 2023 Phillip Wozny, Bram Renting, Robert Loftin, Claudia Wieners, Erman Acar

As our submission for track three of the AI for Global Climate Cooperation (AI4GCC) competition, we propose a negotiation protocol for use in the RICE-N climate-economic simulation.

A Meta-Learning Algorithm for Interrogative Agendas

no code implementations4 Jan 2023 Erman Acar, Andrea De Domenico, Krishna Manoorkar, Mattia Panettiere

These algorithms use a single concept lattice for such a task, meaning that the set of features used for the categorization is fixed.

Meta-Learning Outlier Detection

A Meta-Reinforcement Learning Algorithm for Causal Discovery

1 code implementation18 Jul 2022 Andreas Sauter, Erman Acar, Vincent François-Lavet

Causal discovery is a major task with the utmost importance for machine learning since causal structures can enable models to go beyond pure correlation-based inference and significantly boost their performance.

Causal Discovery Meta Reinforcement Learning +2

Hyperbolic Image Segmentation

1 code implementation CVPR 2022 Mina GhadimiAtigh, Julian Schoep, Erman Acar, Nanne van Noord, Pascal Mettes

For image segmentation, the current standard is to perform pixel-level optimization and inference in Euclidean output embedding spaces through linear hyperplanes.

Image Segmentation Segmentation +1

Reasoning with Contextual Knowledge and Influence Diagrams

no code implementations1 Jul 2020 Erman Acar, Rafael Peñaloza

Influence diagrams (IDs) are well-known formalisms extending Bayesian networks to model decision situations under uncertainty.

Analyzing Differentiable Fuzzy Implications

no code implementations4 Jun 2020 Emile van Krieken, Erman Acar, Frank van Harmelen

In this paper, we investigate how implications from the fuzzy logic literature behave in a differentiable setting.

Weakly-supervised Learning

On Sufficient and Necessary Conditions in Bounded CTL: A Forgetting Approach

no code implementations13 Mar 2020 Renyan Feng, Erman Acar, Stefan Schlobach, Yisong Wang, Wanwei Liu

To address such a scenario in a principled way, we introduce a forgetting-based approach in CTL and show that it can be used to compute SNC and WSC of a property under a given model and over a given signature.

Analyzing Differentiable Fuzzy Logic Operators

1 code implementation14 Feb 2020 Emile van Krieken, Erman Acar, Frank van Harmelen

Finally, we empirically show that it is possible to use Differentiable Fuzzy Logics for semi-supervised learning, and compare how different operators behave in practice.

Weakly-supervised Learning

Semi-Supervised Learning using Differentiable Reasoning

1 code implementation13 Aug 2019 Emile van Krieken, Erman Acar, Frank van Harmelen

We introduce Differentiable Reasoning (DR), a novel semi-supervised learning technique which uses relational background knowledge to benefit from unlabeled data.

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