Electronic Product Catalogues are the basis for offering and selling products in online market places. To be efficient, these catalogues have to provide a semantically precise description of product features to allow for effective matchmaking of products and customer requests. At the same time, the description has to follow a common terminology that allows the integration with the catalogues of...

It is important to map the large-scale matter distribution in local Universe for cosmological studies, such as tracing of peculiar velocity flow, characterisation environment different astronomical objects, and precision measurements parameters. We used X-ray luminous clusters this find that about 51% groups are members superclusters which occupy only a few percent volume. In paper we provide d...

We apply simple optical and SZ cluster finders to mock galaxy catalogues and SZ flux maps created from dark matter halos in a (1 hGpc) dark matter simulation, at redshifts 0.5 and 0.9. At each redshift, the two catalogues are then combined to assess how well they can improve each other, and compared to several variants of catalogues made using SZ flux and galaxy information simultaneously. We u...

Studies of the photometric variability astronomical sources from ground-based telescopes must overcome atmospheric extinction effects. Differential photometry by reference to an ensemble stars which closely match target in terms magnitude and colour can mitigate these This Paper describes design, implementation, operation a novel algorithm – The Locus Algorithm enables optimised differential ph...

Geospatial data, or data tied to a location on the Earth, are critical to solving today’s complex environmental, economic, and social problems. The use of GIS technologies for analysing spatial problems has become pervasive and, in the process, has created a demand for vast amounts of digital geospatial data. To meet that demand, the data that describe the characteristics of geographical space ...

The growing popularity of the World utilize Internet services as means of maximizing their profit by promoting products and services. Electronic commerce, which is also known as e economic environment in which business activities, such as purchasing products and advertising goods, are performed by using electronic communications. Web interface design is an important ‘pull factor’ in ecan be det...

This paper discusses some of the problems designers face in building catalogues in large networks and relates them back to the resource discovery problem. Currently many catalogues tend to be built in an adhoc fashion – which leads to a great variety in the quality of publically accessible network catalogs. Furthermore, the research surrounding these catalogues tends to focus on narrow technica...

We apply simple optical and SZ cluster finders to mock galaxy catalogues and SZ flux maps created from dark matter halos in a (1 hGpc) dark matter simulation, at redshifts 0.5 and 0.9. At each redshift, the two catalogues are then combined to assess how well they can improve each other, and compared to several variants of catalogues made using SZ flux and galaxy information simultaneously. We u...

An important innovation in the geosciences is the astronomical time scale. The astronomical time scale is based on the Milankovitch-forced stratigraphy that has been calibrated to astronomical models of paleoclimate forcing; it is defined for much of Cenozoic-Mesozoic. For the Palaeozoic era, however, astronomical forcing has not been widely explored because of lack of high-precision geochronol...

We present the results of applying automated machine learning techniques to the problem of matching different object catalogues in astrophysics. In this study we take two partially matched catalogues where one of the two catalogues has a large positional uncertainty. The two catalogues we used here were taken from the HI Parkes All Sky Survey (HIPASS), and SuperCOSMOS optical survey. Previous w...