14 Result(s)

Article

Self organizing maps for cultural content delivery

Tailored analytics play a key role in the successful delivery of cultural content to huge and diverse groups. Primarily the latter depends on a number of information retrieval factors determining user experien...

Georgios Drakopoulos, Ioanna Giannoukou… in Neural Computing and Applications (2022)

Article

Transform-based graph topology similarity metrics

Graph signal processing has recently emerged as a field with applications across a broad spectrum of fields including brain connectivity networks, logistics and supply chains, social media, computational aesth...

Georgios Drakopoulos, Eleanna Kafeza, Phivos Mylonas… in Neural Computing and Applications (2021)

Article

Discovering sentiment potential in Twitter conversations with Hilbert–Huang spectrum

Does a tweet with specific emotional content posted by an influential account have the capability to shape or even completely alter the opinions of its readers? Moreover, can other influential accounts further...

Georgios Drakopoulos, Andreas Kanavos, Phivos Mylonas, Spyros Sioutas in Evolving Systems (2021)

Article

An adversarial semi-supervised approach for action recognition from pose information

The collection of video data for action recognition is very susceptible to measurement bias; the equipment used, camera angle and environmental conditions are all factors that majorly affect the distribution o...

George Pikramenos, Eirini Mathe, Eleanna Vali… in Neural Computing and Applications (2020)

Article

A genetic algorithm for spatiosocial tensor clustering

Tensor clustering is a knowledge management technique which is well known as a major algorithmic and technological driver behind a broad applications spectrum. The latter ranges from multimodal social media an...

Georgios Drakopoulos, Foteini Stathopoulou, Andreas Kanavos… in Evolving Systems (2020)

Article

Evaluating graph resilience with tensor stack networks: a Keras implementation

In communication networks resilience or structural coherency, namely the ability to maintain total connectivity even after some data links are lost for an indefinite time, is a major design consideration. Eval...

Georgios Drakopoulos, Phivos Mylonas in Neural Computing and Applications (2020)

Article

Defining and evaluating Twitter influence metrics: a higher-order approach in Neo4j

Ranking account influence constitutes an important challenge in social media analysis. Until recently, influence ranking relied solely on the structural properties of the underlying social graph, in particular...

Georgios Drakopoulos, Andreas Kanavos, Phivos Mylonas… in Social Network Analysis and Mining (2017)

Article

Exploiting social media information toward a context-aware recommendation system

The rise of the social networks during the last few years has provided a vast amount of knowledge in several domains. Among them, route planning and point-of-interest recommendation have significantly benefite...

Michalis Korakakis, Evaggelos Spyrou, Phivos Mylonas… in Social Network Analysis and Mining (2017)

Article

VIRaL: Visual Image Retrieval and Localization

New applications are emerging every day exploiting the huge data volume in community photo collections. Most focus on popular subsets, e.g., images containing landmarks or associated to Wikipedia articles. In ...

Yannis Kalantidis, Giorgos Tolias, Yannis Avrithis… in Multimedia Tools and Applications (2011)

Article

Concept detection and keyframe extraction using a visual thesaurus

This paper presents a video analysis approach based on concept detection and keyframe extraction employing a visual thesaurus representation. Color and texture descriptors are extracted from coarse regions of ...

Evaggelos Spyrou, Giorgos Tolias, Phivos Mylonas… in Multimedia Tools and Applications (2009)

Article

Signal, image and video processing (SIVP) special issue on “multimedia semantics, adaptation and personalization” Editorial

Phivos Mylonas, Hermann Hellwagner, Pablo Castells… in Signal, Image and Video Processing (2008)

Article

Semantic representation of multimedia content: Knowledge representation and semantic indexing

In this paper we present a framework for unified, personalized access to heterogeneous multimedia content in distributed repositories. Focusing on semantic analysis of multimedia documents, metadata, user quer...

Phivos Mylonas, Thanos Athanasiadis, Manolis Wallace… in Multimedia Tools and Applications (2008)

Article

Editorial: Semantic media adaptation and personalisation

Marios C. Angelides, Phivos Mylonas, Manolis Wallace in Multimedia Systems (2007)