Multimedia and User Credibility Knowledge Extraction

01.10.2012 - 30.04.2016
Research funding project

Web3.0 has already appeared in the public vocabulary over 5 years ago. While its definition
remains unclear, what has become clear in the last half decade is that the web has become
a support for social media. Directly from cameras, phones, tablets or computers, users are
pushing multimedia data towards their peers and the world at large. MUCKE addresses this
stream of multimedia social data with new and reliable knowledge extraction models
designed for multilingual and multimodal data shared on social networks. It departs
from current knowledge extraction models, which are mainly quantitative, by giving a high
importance to the quality of the processed data, in order to protect the user from an
avalanche of equally topically relevant data. It does so using two central innovations:
automatic user credibility estimation for multimedia streams and adaptive multimedia
concept similarity. Credibility models for multimedia streams are a highly novel topic, which
will be cast as a multimedia information fusion task and will constitute the main scientific
contribution of the project. Adaptive multimedia concept similarity departs from existing
models by creating a semantic representation of the underlying corpora and assigning a
probabilistic framework to them. The utility of these two innovations will be demonstrated in
an image retrieval system. Extensive evaluation will be performed in order to assess the
reliability of the extracted knowledge against representative datasets. Additionally, a new,
shared evaluation task focused on user credibility estimation will be proposed. The two core
innovations rely on innovative text processing, image processing and fusion methods. Text
processing will concentrate on tasks such as word sense disambiguation, concept
recognition and anaphora resolution. Image processing will include parsimonious content
description, large scale concept detection and detector robustness. Multimedia fusion will
focus on a flexible combination of text and image modalities based on a probabilistic
framework. All proposed methods will be designed to take advantage of the structural
properties of the social networks. Particular focus will be placed on the proposition of
scalable algorithms, which cope with large-scale, heterogeneous data.
The consortium is formed of four partners, three universities and one research institute with
complementary competences that cover the scientific domains associated to the project.
Together, in MUCKE, they will introduce new models for processing noisy multimodal and
multilingual data that will constitute the base for innovative services.

People

Project leader

Project personnel

Institute

Grant funds

  • FWF - Ă–sterr. Wissenschaftsfonds (National) Transnational Funding Activity Austrian Science Fund (FWF)

Research focus

  • Media Informatics and Visual Computing: 100%

Publications