EE Seminar: Tracing Back the History of Multimedia Objects Online: Applications in Forensics, Linguistics, and Cultural Heritage
(The talk will be given in English)
Speaker: Prof. Anderson Rocha
IC/Unicamp/Brazil
Monday, March 11th, 2019
15:00 - 16:00
Room 011, Kitot Bldg., Faculty of Engineering
Tracing Back the History of Multimedia Objects Online: Applications in Forensics, Linguistics, and Cultural Heritage
Abstract
Currently, multimedia objects can be easily created, stored, (re)- transmitted, and edited for good or bad. In this sense, there has been an increasing interest in finding the structure of temporal evolution within a set of documents and how documents are related to one another overtime. This process, also known in the literature as Multimedia Phylogeny, aims at finding the phylogeny tree(s) that best explains the creation process of a set of related documents (e.g., images, videos, texts) and their ancestry relationships. Solutions to this problem have direct applications in forensics, security, copyright enforcement, news tracking services, linguistics, and other areas. In this talk, we will explore solutions for reconstructing the evolutionary tree(s) associated with a set of visual documents, more specifically images and videos. This can be useful for aiding experts to track the source of child pornography image broadcasting or the chain of image and video distribution in time, being extremely useful for complex different media provenance tasks. Finally, we will also discuss how to implement such solutions for large-scale setups considering millions of documents at the same time.