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Theses

Modélisation cognitive computationnelle de trajets oculomoteurs lors d'une tâche de recherche d'information

Abstract : This thesis examines the combination of visual and semantic processes in information seeking task on textual interfaces such as web pages. The methodology used is the simulation of cognitive models. This approach aims to design a program based on theoretical cognitive models replicating human behaviour. Our model simulates the oculomotor scan path of an average user searching for information. The processes involved in this kind of tasks are modelled to replicate human eye movements recorded during different experiments. Models of visual and semantics processes are added to a model of memory processes inherent in information retrieval task. For the visual part, we go by saliency maps which predict areas in the display attracting attention, according to low level information (color, orientation and contrast), and the physiological properties of human vision. For the semantic part, the method used to measure semantic similarities between the search goal of the user and the different parts of the page is LSA (Latent Semantic Analysis) (Landauer, 1998). For the memory part the mechanism of inhibition of return (Klein, 1999) and the Variable Memory Model (Horowitz, 2006) are used. The thesis includes three parts: designing a theoretical model of interaction, designing a simulation tool, and developing psychophysical experiments with eye-tracking techniques to validate and refine the proposed model.
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https://tel.archives-ouvertes.fr/tel-00430624
Contributor : Myriam Chanceaux <>
Submitted on : Wednesday, January 6, 2010 - 5:37:35 PM
Last modification on : Thursday, November 19, 2020 - 3:56:08 PM
Long-term archiving on: : Thursday, September 23, 2010 - 10:57:56 AM

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  • HAL Id : tel-00430624, version 2

Citation

Myriam Chanceaux. Modélisation cognitive computationnelle de trajets oculomoteurs lors d'une tâche de recherche d'information. Modélisation et simulation. Université Joseph-Fourier - Grenoble I, 2009. Français. ⟨tel-00430624v2⟩

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