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Extremal Properties of Random Structures
The extremal characteristics of random structures, including trees, graphs, and networks, are discussed. A statistical physics approach is employed... -
Spectral Analysis of Random Networks
We review a general approach that describes the spectra of eigenvalues for random graphs with a local tree-like structure. The exact equations to the... -
On the Analysis of Backtrack Proceduresfor the Colouring of Random Graphs
Backtrack search algorithms are procedures capable of deciding whether a decision problem has a solution or not through a sequence of trials and... -
Attacks and Cascades in Complex Networks
This paper reviews two problems in the security of complex networks: cascades of overload failures on nodes and range-based attacks on links.... -
Theoretical Neuroanatomy:Analyzing the Structure, Dynamics,and Function of Neuronal Networks
The mammalian brain is an extraordinary object: its networks give rise to our conscious experiences as well as to the generation of adaptive behavior... -
Tomography and Stability of Complex Networks
We study the structure of generalized random graphs with a given degree distribution P(k), and review studies on their behavior under both random... -
Topology, Hierarchy, and Correlations in Internet Graphs
We present a statistical analysis of different metrics characterizing the topological properties of Internet maps, collected at two different... -
The Prototype TNG Long-Term Archive and its Interactions with the Italian GRID Project
A pilot project is currently being carried out, aiming at demonstrating the feasibility of technical solutions for the construction of the Long-Term... -
The UDAPAC Project - Uccle Direct Astronomical Plate Archive Centre: A New International Facility for Inherited Observations
We discuss a project to create a centralized astronomical direct-plate archive and digitizing facility, with a view to making photographic data fully... -
The Master Catalogue of Stars Towards the Magellanic Clouds
The Master Catalogue of stars towards the Magellanic Clouds (MC2) is a multi-wavelength reference catalogue. We performed a systematic cross-matching... -
The CATS Database as a Tool to Study Radio Sources
The CATS database unifies more than 350 catalogues mostly radio astronomical. It allows a user to execute over these data some operations including... -
The Great Observatories Origins Deep Survey: A VO Test Case?
The Great Observatories Origins Deep Survey is an effort to orchestrate limiting observations of a northern (HDF-N) and a southern (CDF-S) field,... -
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Nineteenth and Twentieth Century Clouds Over the Twenty-First Century Virtual Observatory
Physical science has changed in the century since Lord Kelvin’s celebrated essay on Nineteenth Century Clouds over the Dynamical Theory of Heat and... -
Statistical Analysis of Observed and Simulated Surveys
The statistical analysis of large astronomical datasets requires also application of powerful fast codes and corresponding basic models. Some... -
e-Star: Telescopes and Databases as a Single Information Grid
We present a sketch of a system which consists of a Grid of databases and telescopes within which intelligent agents assess the information available... -
Inter-Operability of ESA Science Archives
ESA Science Archives for ISO and XMM-Newton have been developed by the Science Operations and Data Systems Division in Villafranca, Spain. By using... -
Data Mining Facility
A major goal of the Virtual Observatory is to build tools for exploring and extracting new information from heterogeneous (and possibly very large)... -
Star-Forming Regions at High Resolution: Interferometry for Virtual Observatories
Star forming regions must be studied in 3-D with resolutions from milli-arcseconds to degrees, to understand the birth of stars and planets and the...