Please use this identifier to cite or link to this item: http://hdl.handle.net/10362/19875
Title: Potential Indirect Relationships in Productive Networks
Author: Sabino, André Miguel Guedelha
Advisor: Rodrigues, Armanda
Keywords: Productive networks
Machine learning
Spatial information
Defense Date: Dec-2016
Abstract: Productive Networks, such as Social Networks Services, organize evidence about human behavior. This evidence is independent of the network content type, and may support the discovery of new relationships between users and content, or with other users. These indirect relationships are important for recommendation systems, and systems where potential relationships between users and content (e.g., locations) is relevant, such as with the emergency management domain, where the discovery of relationships between users and locations on productive networks may enable the identification of population density variations, increasing the accuracy of emergency alerts. This thesis presents a Productive Networks model, which enables the development of a methodology for indirect relationships discovery, using the metadata on the network, and avoiding the computational cost of content analysis. We designed and conducted a set of experiments to evaluate our proposals. Our results are twofold: firstly, the productive network model is sufficiently robust to represent a wide range of networks; secondly, the indirect relationship discovery methodology successfully identifies relevant relationships between users and content. We also present applications of the model and methodology in several contexts.
URI: http://hdl.handle.net/10362/19875
Designation: Doctor of Philosophy in Computer Science
Appears in Collections:FCT: DI - Teses de Doutoramento

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