The Lab has extensive experience and expertise in semantic multimedia analysis, indexing and retrieval, social media and big data analytics, knowledge structures, reasoning and personalization for multimedia applications, eHealth and environmental applications

Pottery gestures style comparison by exploiting Myo sensor and forearm anatomy

Mklab performs research for comparing the style of pottery gestures by exploiting the Myo sensor and forearm anatomy. In particular, a set of Electromyogram (EMG) based features such as muscles total pressure, flexors pressure, tensors pressure, and gesture stiffness, have been used for the purpose of identifying differences in performing the same gesture across three pottery constructions namely bowl, cylindrical vase, and spherical vase. In identifying these EMG-based features we have developed a tool for visualizing in real-time the signals generated from a Myo sensor along with the muscle activation level in 3D space.

Efficient dimensionality reduction and classification software released

We just released software (executables and sources) for our accelerated Kernel Subclass Discriminant Analysis (AKSDA) method and its combination with SVM classifiers. This is an efficient dimensionality reduction and classification method, for very high-dimensional data. AKSDA is a new GPU-accelerated, state-of-the-art C++ library (also provided as command-line executable) for supervised dimensionality reduction and classification, using multiple kernels. It greatly reduces the dimensionality of the input data, while at the same time it increases their linear separability.

Joint Dem@Care Paper accepted for Publication in TPAMI

A joint paper by INRIA, UBX and CERTH on "Semantic Event Fusion of Different Visual Modality Concepts for Activity Recognition" has been accepted for publication in the special issue on Multimodal Human Pose Recovery and Behavior Analysis of IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI). With an impact factor of 5.781, TPAMI is one of the most prestigious journals in the areas of computer vision and image understanding, pattern analysis and recognition, with a particular emphasis on machine learning for pattern analysis.

1st International Workshop on Multimedia Analysis and Retrieval for Multimodal Interaction (MARMI2016)

The 1st International Workshop on Multimedia Analysis and Retrieval for Multimodal Interaction (MARMI2016) is organized in conjunction with the ACM Conference on Multimedia Retrieval (ICMR) 2016, New York, USA, June 6-9, 2016.   IMPORTANT DATES - Submission deadline: March 1, 2016 - Notifications: March 26, 2016 - Camera ready version: April 15, 2016 - Workshop: June 6, 2016

MKLab participates in the just launched hackAIR project

The hackAIR project was launched on January 2016 in Thessaloniki by a consortium of six partners of five European countries. hackAIR will develop an open technology toolkit for citizens€™ observatories on air quality. This toolkit aims to complement official air quality data with a number of community-driven data sources, including an easy-to-build open hardware sensor module that transmits regular air quality measurements via Bluetooth, air quality information derived from mobile phone pictures of the sky and social media, as well as a low-tech measuring setup involving vacuum cleaners and coffee filters.

Dem@Care Context Descriptor Pattern

The Dem@Care Context Descriptor ontology has been integrated in the Linked Open Vocabularies (LOV) dataset, enabling its sharing and reuse by other datasets in the Linked Data Cloud (a human-readable description of the vocabulary is available here). The ontology has been developed in the framework of the Dem@Care project and provides the vocabulary to annotate complex (high-level) activity classes with low-level observations for complex activity recognition. For more details, please refer to the relevant paper: G.

MKLab successfully organized the 10th European Summer School on Information Retrieval

The European Summer School in Information Retrieval (ESSIR) is a scientific event founded in 1990, which has given rise to a series of Summer Schools held on a regular basis to provide high quality teaching of Information Retrieval (IR) and advanced IR topics to an audience of researchers and research students. ESSIR is typically a week-long event consisting of guest lectures and seminars from invited lecturers who are recognized experts in the field.

Successful participation of CERTH-ITI in the interactive Surveillance Event Detection task of TRECVID 2015

CERTH-ITI participated to the interactive Surveillance Event Detection (SED) task of TRECVID 2015 with the video retrieval engine VERGE. VERGE results achieved the second place, among the submissions made by all institutions participating to TRECVID 2015 SED task (runs from 4 different institutions searching for 7 events: cell to ear, embrace, object put, people meet, people split up, poining) with interactive systems. The latest version of VERGE integrates advanced retrieval functionalities including visual similarity search, object-based retrieval and visual concept-based search in a user friendly interface.

MKLab successfully participates in MediaEval 2015

MKLab had a very successful participation in the 2015 edition of the MediaEval benchmarking activity that took place in Wurzen, Germany on 14-15 September. The team participated in four tasks: Placing, Diverse Social Image Retrieval, Verifying Multimedia Use, and Synchronization of Multi-User Event Media, with the last two tasks being co-organized by members of the lab. The team achieved impressive results in two of the tasks, namely the Placing Task, in which it achieved the best performance, being the only participation to outperform the system provided by the organizers, and in the Diverse Social Image Retrieval task, where the team achieved the best performance in the single-topic queries, and the second best performance overall.

MKLab participates in the Hardware Grant Program of NVIDIA

MKLab is happy to announce that we received support from the Hardware Grant Program of the NVIDIA Corporation to continue our research (Zampoglou et al., 2015) on the field of multimedia forensics, which is currently carried out in the context of the REVEAL EC co-funded project. In particular, we are going to explore the potential of employing Deep Learning approaches on the problem of image splicing detection.    M. Zampoglou, S.

BDV associate member

Improve My City Mobile

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Improve My City Mobile, allows citizens to report local problems and suggest solutions for improving their neighbourhood. Learn more...

Motorola collaborations

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The Multimedia Group has been collaborating with Motorola in several Motorola funded R&D projects.


NVIDIA links Multimedia Group for the GPU-LIBSVM implementation

HR Excellence in Research

HR Excellence in Research