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Dive into the research topics where Olga Vybornova is active.

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Featured researches published by Olga Vybornova.


Journal of Humanitarian Logistics and Supply Chain Management | 2016

Decision support in a fieldable laboratory management during an epidemic outbreak of disease

Olga Vybornova; Jean-Luc Gala

Purpose The purpose of this paper is to analyze the decision-making process and provide a decision support framework for deployment of an on-site analytical capacity (a fieldable laboratory (FL)) to contain an expanding outbreak and protect public health. Design/methodology/approach The FL mission cycle consists of five successive interlinked phases with a set of operational functions (OFs) performed during the mission. The list of phases, OFs and their contents were iteratively developed during and after FL missions and validated with operational partners. Findings The well-defined structure of the FL domain appears as the best functional basis for tracking the decision-making process across the whole mission cycle. Description of all the FL elements and information flows addresses the major issue of interoperability of resources used by similar international capacities (inter-)acting as operational partners in global response to the crisis. Originality/value The work presents the first attempt in this field to systematically describe and chronologically organize the decisions taken by a FL manager and staff during all phases of the FL mission cycle. Definition of OFs with all the related information flows allows for comparison of procedures, their better planning and refining, validation of protocols, mutual training and operational improvement between FLs from different geographical, organizational and cultural origins.


international conference on multimodal interfaces | 2009

A fusion framework for multimodal interactive applications

Hildeberto Mendonça; Jean-Yves Lionel Lawson; Olga Vybornova; Benoît Macq; Jean Vanderdonckt

This research aims to propose a multi-modal fusion framework for high-level data fusion between two or more modalities. It takes as input low level features extracted from different system devices, analyses and identifies intrinsic meanings in these data. Extracted meanings are mutually compared to identify complementarities, ambiguities and inconsistencies to better understand the user intention when interacting with the system. The whole fusion life cycle will be described and evaluated in an office environment scenario, where two co-workers interact by voice and movements, which might show their intentions. The fusion in this case is focusing on combining modalities for capturing a context to enhance the user experience.


international symposium on multimedia | 2008

High Level Data Fusion on a Multimodal Interactive Applications Platform

Olga Vybornova; H. Mendona; Jean-Yves Lionel Lawson; Benoît Macq

We demonstrate a multimodal high-level data fusion tooling integrated on a platform aimed at the rapid development and prototyping of multimodal applications through user-centered design. The platform embeds a set of pure and combined modalities as reusable components and generic mechanisms for combining modalities with a rich support for multimodal fusion in order to improve the human-computer interaction.


Computer-Aided Engineering | 2011

Multi-domain framework for multimedia archiving using multimodal interaction

Hildeberto Mendonça; Olga Vybornova; Jean-Yves Lionel Lawson; Benoît Macq

Multimedia content is very rich in terms of meaning, and archiving systems need to be improved to consider such richness. This research proposes archiving improvements to extend the ways of describing content, and enhance user interaction with multimedia archiving systems beyond the traditional text typing and mouse pointing. These improvements consider a set of techniques to segment different kinds of media, a set of indexes to annotate the supported segmentation techniques and an extensible multimodal interaction to make multimedia archiving tasks more user friendly.


Environment Systems and Decisions | 2018

Structured decision-making for the management of a biological fieldable laboratory during outbreaks: a case for European Union Civil Protection Mechanism (EUCPM)

Olga Vybornova; Jean-Luc Gala

Fast on-scene deployment of an analytical laboratory capacity to help contain an outbreak of infectious disease requires setting up an appropriate policy framework and a range of operating procedures to ensure efficient support to decision-making, as well as the optimal engagement and use of dedicated resources. This work focuses on fully autonomous deployment when the mobile capacity operators themselves need to make decisions and implement all the operational functions (OFs), from basic needs like provision of equipment, power supply, food and accommodation for the staff, to complicated procedures like logistics of transportation and supply chain. A model of the identity and structure of specific decision-making requirements for a generic deployment of laboratory capacities was built from the real experience during specific deployments of the operators and managers of the Belgian capacity Biological Light Fieldable Laboratory for Emergencies (B-LiFE). Self- and external assessments were conducted and lessons learned successively reviewed after each deployment by B-LiFE laboratory operators and managers and observers in the framework of European demonstration projects and joint exercises. The result was consolidated by integrating the assessment of European Commission-appointed certifiers during the certification procedure of B-LIFE as a self-sufficient module of the European Medical Corps, namely the European modules exercise “Modex” in April 2017 (Revinge, Sweden) followed by the “ModTTX 4” Table-top in May 2017 (Bruges, Belgium). A complete and updated set of Fieldable Laboratory operational functions is presented, including their contents, cross-links, inter-dependencies, information needs for implementation, and related decisions.


REST: From Research to Practice | 2011

A Resource Oriented Multimedia Description Framework

Hildeberto Mendonça; Vincent Nicolas; Olga Vybornova; Benoît Macq

This chapter presents a multimedia archiving framework to describe the content of multimedia resources. This kind of content is very rich in terms of meanings and archiving systems have to be improved to consider such richness. This framework simplifies the multimedia management in existing applications, making it accessible for non-specialized developers. This framework is fully implemented on the REST architectural style, precisely mapping the notion of resource with media artifacts, and scaling to address the growing demand for media. It offers an extensive support for segmentation and annotation to attach semantics to content, helping search mechanisms to precisely index those content. A detailed example of the framework adoption by a medical imaging application for breast cancer diagnosis is presented.


international conference on signal processing | 2007

Text Watermarking against Ownership Rights Violation

Olga Vybornova; Benoît Macq

The paper describes an approach to natural language watermarking and hashing based on semantic structures. In our method we are interested in the linguistic semantic phenomenon of presupposition. Presupposition is implicit information that is taken for granted by the reader and establishes common ground between the authors and readers situational knowledge; it is a semantic component of certain linguistic expressions (lexical items and syntactic constructions called presupposition triggers, 100 in total). The same sentence can be used with or without presupposition, provided that all the relations between discourse referents are preserved. 3 types of transformations are employed: triggers removal, triggers synonymic replacements and introducing triggers where there were none. The key is formed as a hash table containing information about the original text, the number of transformed sentences and the triggers on which the transformations were based. This method is resilient against data loss and data altering attacks.


conference on security steganography and watermarking of multimedia contents | 2007

A method of text watermarking using presuppositions

Olga Vybornova; Benoît Macq


information reuse and integration | 2007

Natural Language Watermarking and Robust Hashing Based on Presuppositional Analysis

Olga Vybornova; Benoît Macq


national conference on artificial intelligence | 2015

Bringing Structure to the Disaster Data Typhoon: an Analysis of Decision-Makers’ Information Needs in the Response to Haiyan

Tina Comes; Olga Vybornova; Bartel Van de Walle

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Benoît Macq

Université catholique de Louvain

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Jean-Luc Gala

Université catholique de Louvain

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Monica Gemo

Université catholique de Louvain

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Hildeberto Mendonça

Université catholique de Louvain

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Jean-Yves Lionel Lawson

Université catholique de Louvain

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Anne-Sophie Piette

Université catholique de Louvain

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Pierre-Alain Fonteyne

Université catholique de Louvain

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H. Mendona

Université catholique de Louvain

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Jean Vanderdonckt

Université catholique de Louvain

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Jean-François Durant

Université catholique de Louvain

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