A centrality detector concept

A Simulator for Concept Detector Output

Concept based video retrieval is a promising search paradigm because it is fully automated and it investigates the fine grained content of a video, which is normally not captured by human annotations. Concepts are captured by so-called concept detectors. However, since these detectors do not yet show a sufficient performance, the evaluation of retrieval systems, which are built on top of the de...

Detector Outline Document for the Large Detector Concept

Eigenvector-centrality - a node-centrality?

Networks of social relations can be represented by graphs and socioor adjacency-matrices and their structure can be analyzed using different concepts, one of them called centrality. We will provide a new formalization of a “node-centrality” which leads to some properties a measure of centrality has to satisfy. These properties allow to test given measures, for example measures based on degree, ...

Concept Detector Refinement on Social Videos

The explosion of the social video sharing sites gives new challenges on video search and indexing technique. Because of the concept diversity in social videos, it is very hard to build a well annotated dataset that provides good coverage over the whole meaning of concepts. However, the prosperity of social video also make it easy to obtain a huge number of videos, which gives an opportunity to ...

BSO Crystals for the HHCAL Detector Concept

We report an investigation on optical and scintillation properties and radiation hardness of four 20 cm long BSO crystals grown at SIC for the HHCAL detector concept. Their optical and scintillation properties, such as longitudinal transmittance, light output and light response uniformity, were measured before and after γ-ray irradiation. Progresses are observed in optical quality, light output...