MULTIMEDIA USER PROFILING IN ONLINE SOCIAL NETWORKS

Ph.DDOCTOR OF PHILOSOPH

Integrating Deep Learning with Correlation-based Multimedia Semantic Concept Detection

The rapid advances in technologies make the explosive growth of multimedia data possible and available to the public. Multimedia data can be defined as data collection, which is composed of various data types and different representations. Due to the fact that multimedia data carries knowledgeable information, it has been widely adopted to different genera, like surveillance event detection, medical abnormality detection, and many others. To fulfil various requirements for different applications, it is important to effectively classify multimedia data into semantic concepts across multiple domains. In this dissertation, a correlation-based multimedia semantic concept detection framework is seamlessly integrated with the deep learning technique. The framework aims to explore implicit and explicit correlations among features and concepts while adopting different Convolutional Neural Network (CNN) architectures accordingly. First, the Feature Correlation Maximum Spanning Tree (FC-MST) is proposed to remove the redundant and irrelevant features based on the correlations between the features and positive concepts. FC-MST identifies the effective features and decides the initial layer\u27s dimension in CNNs. Second, the Negative-based Sampling method is proposed to alleviate the data imbalance issue by keeping only the representative negative instances in the training process. To adjust dierent sizes of training data, the number of iterations for the CNN is determined adaptively and automatically. Finally, an Indirect Association Rule Mining (IARM) approach and a correlation-based re-ranking method are proposed to reveal the implicit relationships from the correlations among concepts, which are further utilized together with the classification scores to enhance the re-ranking process. The framework is evaluated using two benchmark multimedia data sets, TRECVID and NUS-WIDE, which contain large amounts of multimedia data and various semantic concepts

AIUCD2017 - Book of Abstracts

Questo volume raccoglie gli abstract degli interventi presentati alla conferenza AIUCD 2017. AIUCD 2017 si è svolta dal 26 al 28 Gennaio 2017 a Roma, ed è stata verrà organizzata dal Digilab, Università Sapienza in cooperazione con il network ITN DiXiT (Digital Scholarly Editions Initial Training Network). AIUCD 2017 ha ospitato anche la terza edizione dell’EADH Day, tenutosi il 25 Gennaio 2017. Gli abstract pubblicati in questo volume hanno ottenuto il parere favorevole da parte di valutatori esperti della materia, attraverso un processo di revisione anonima sotto la responsabilità del Comitato di Programma Internazionale di AIUCD 2017

AIUCD2017 - Book of Abstracts

Questo volume raccoglie gli abstract degli interventi presentati alla conferenza AIUCD 2017. AIUCD 2017 si è svolta dal 26 al 28 Gennaio 2017 a Roma, ed è stata verrà organizzata dal Digilab, Università Sapienza in cooperazione con il network ITN DiXiT (Digital Scholarly Editions Initial Training Network). AIUCD 2017 ha ospitato anche la terza edizione dell’EADH Day, tenutosi il 25 Gennaio 2017. Gli abstract pubblicati in questo volume hanno ottenuto il parere favorevole da parte di valutatori esperti della materia, attraverso un processo di revisione anonima sotto la responsabilità del Comitato di Programma Internazionale di AIUCD 2017

Communities in new media. Digital participation in hybrid realities and communities. Proceedings of 24th conference GeNeMe

Die Pandemie hat der Digitalisierung in Wirtschaft, Wissenschaft, Bildung, privaten Netzwerken und öffentlichen Institutionen einen enormen Anschub ermöglicht und gleichermaßen innovative Ideen sowie Schwachstellen aufgezeigt. Seit 2020 wurde unser Leben und Arbeiten zu einer hybriden, auf digitaler Kommunikation und Kollaboration basierten sozitechnischen Wirklichkeit transformatiert. [...] Wir haben uns offenbar auf den permanenten technologiebasierten Wandel bei zunehmender Beschleunigung eingelassen. Aber: Wo geht die Reise tatsächlich hin? Konstituieren sich Gemeinschaften ausschließlich im Wechselspiel hybrider Realitäten? Sind große Datenmengen Bedrohung oder Chance? Können wir diese überhaupt verarbeiten oder bedarf es dafür grundlegend veränderter Werkzeuge und Methoden – wie Visual Analytics, Virtuelle Rekonstruktion, Virtual Engineering, virtueller Assistenten und kooperativer VR? Was hat digitale Innovation mit der Pandemie zu tun um umgekehrt? Kann unser Leben in hybriden Gemeinschaften auch langfristig erfüllend stattfinden oder sind die virtuellen Realitäten eher ein Escape-Room aus einem bedrohlichen Alltag? Welche Kompetenz-Frameworks zwischen DigCompEdu und Literacy benötigen wir? [...] Das Konferenzprogramm bildet eine Vielfalt an Themen ab und unterteilt sich in die folgenden acht Tracks: Lehrformate und -methoden; Qualitätskriterien für Online-Lernszenarien; Kompetenzaneignung; Digitale Strategie und Plattformökonomie; Gamification; Partizipation und Kollaboration in öffentlichen Räumen; Management von Partizipation und Kollaboration; Interaktive Formate. (DIPF/Orig.)The pandemic has given a huge boost to digitisation in business, science, education, private networks and public institutions, highlighting innovative ideas as well as vulnerabilities in equal measure. Since 2020, our lives and work have been transformed into a hybrid socio-technical reality based on digital communication and collaboration. [...] We have obviously embraced permanent technology-based change with increasing acceleration. But where is the journey really going? Are communities constituted exclusively in the interplay of hybrid realities? Are big data a threat or an opportunity? Can we process it at all or does it require fundamentally different tools and methods - such as visual analytics, virtual reconstruction, virtual engineering, virtual assistants and collaborative VR? What does digital innovation have to do with the pandemic and vice versa? Can our lives in hybrid communities be fulfilling in the long run, or are virtual realities more of an escape room from a threatening everyday life? Which competence frameworks between DigCompEdu and Literacy do we need? [...] The conference programme covers a wide range of topics and is divided into the following eight tracks: Teaching formats and methods; Quality criteria for online learning scenarios; Acquisition of competences; Digital strategy and platform economy; Gamification; Participation and collaboration in public spaces; Management of participation and collaboration; Interactive formats. (DIPF/Orig.

2007-2008 Louisiana Tech University Catalog

The Louisiana Tech University Catalog includes announcements and course descriptions for courses offered at Louisiana Tech University for the academic year of 2007-2008.https://digitalcommons.latech.edu/university-catalogs/1007/thumbnail.jp

2006-2007 Louisiana Tech University Catalog

The Louisiana Tech University Catalog includes announcements and course descriptions for courses offered at Louisiana Tech University for the academic year of 2006-2007.https://digitalcommons.latech.edu/university-catalogs/1008/thumbnail.jp