Search Results for author: Kalliopi Basioti

Found 10 papers, 0 papers with code

Visual Semantic Parsing: From Images to Abstract Meaning Representation

no code implementations26 Oct 2022 Mohamed Ashraf Abdelsalam, Zhan Shi, Federico Fancellu, Kalliopi Basioti, Dhaivat J. Bhatt, Vladimir Pavlovic, Afsaneh Fazly

The success of scene graphs for visual scene understanding has brought attention to the benefits of abstracting a visual input (e. g., image) into a structured representation, where entities (people and objects) are nodes connected by edges specifying their relations.

Scene Understanding Semantic Parsing

SAViR-T: Spatially Attentive Visual Reasoning with Transformers

no code implementations18 Jun 2022 Pritish Sahu, Kalliopi Basioti, Vladimir Pavlovic

We present a novel computational model, "SAViR-T", for the family of visual reasoning problems embodied in the Raven's Progressive Matrices (RPM).

Inductive Bias Visual Reasoning

DAReN: A Collaborative Approach Towards Reasoning And Disentangling

no code implementations27 Sep 2021 Pritish Sahu, Kalliopi Basioti, Vladimir Pavlovic

Computational learning approaches to solving visual reasoning tests, such as Raven's Progressive Matrices (RPM), critically depend on the ability to identify the visual concepts used in the test (i. e., the representation) as well as the latent rules based on those concepts (i. e., the reasoning).

Disentanglement Inductive Bias +1

Image De-Quantization Using Generative Models as Priors

no code implementations15 Jul 2020 Kalliopi Basioti, George V. Moustakides

Image quantization is used in several applications aiming in reducing the number of available colors in an image and therefore its size.

Quantization

Image Restoration from Parametric Transformations using Generative Models

no code implementations27 May 2020 Kalliopi Basioti, George V. Moustakides

When images are statistically described by a generative model we can use this information to develop optimum techniques for various image restoration problems as inpainting, super-resolution, image coloring, generative model inversion, etc.

Blind Image Deblurring Colorization +2

Training Neural Networks for Likelihood/Density Ratio Estimation

no code implementations1 Nov 2019 George V. Moustakides, Kalliopi Basioti

In classical approaches the two densities are assumed known or to belong to some known parametric family.

Density Ratio Estimation Two-sample testing

Optimizing Shallow Networks for Binary Classification

no code implementations24 May 2019 Kalliopi Basioti, George V. Moustakides

Data driven classification that relies on neural networks is based on optimization criteria that involve some form of distance between the output of the network and the desired label.

Binary Classification Classification +1

Kernel-Based Training of Generative Networks

no code implementations23 Nov 2018 Kalliopi Basioti, George V. Moustakides, Emmanouil Z. Psarakis

Generative adversarial networks (GANs) are designed with the help of min-max optimization problems that are solved with stochastic gradient-type algorithms which are known to be non-robust.

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