PHENIX is one of the two large experiments at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) and archives roughly 100TB of experimental data per year. In addition, large volumes of simulated data are produced at multiple off-site computing centers. For any file catalog to play a central role in data management it has to face problems associated with the need ...

We apply a friends-of-friends algorithm to the combined UZC and SSRS2 redshift surveys to construct a catalog of 1168 groups of galaxies; 411 of these groups have 5 or more members within the redshift survey. The group catalog covers 4.69 steradians and all groups exceed the number density contrast threshold, δρ/ρ = 80. We demonstrate that the groups catalog is homogeneous across the two underl...

This paper presents an on-going project aiming at enhancing the OPAC (Online Public Access Catalog) search system of the Library of the Free University of Bozen-Bolzano with multilingual access. The Multilingual search system (MUSIL), we have developed, integrates advanced linguistic technologies in a user friendly interface and bridges the gap between the world of free text search and the worl...

Boolean systems still constitute most of the installed base of online public access catalogues (OPACs) in the French universities even if many studies have shown that Boolean operators are not frequently used by ‘non-librarian’ users (by contrast with professional librarians). The first study examined the use of Boolean operators by French university students; In the second study, elaborated to...

Over the last decade, application development has depended largely on the use-case driven OO software engineering methodology (http://www.aw.com/catalog/ academic/product/1,4096,0201544350,00.html) along with the many patterns for designing reusable software (http://www.awprofessional.com/catalog/ product.asp?product_id={E1CD5BE7-E008-481B-8D0C-8E80CE9978F9}.) Most of the innovations during thi...

We present the results of a complete Einstein Imaging Proportional Counter (IPC) X-ray survey of optically-selected galaxies from Shapley-Ames Catalog, Uppsala General Catalog and the European Southern Observatory Catalog. Well-defined optical criteria are used to select the galaxies, and X-ray fluxes are measured at the optically-defined positions. The result is a comprehensive list of X-ray d...

A Conceptual Model Based on User Needs FRBR, the Functional Requirements for Bibliographic Records, is a conceptual model, establishing the purposes, uses, and requirements for bibliographic records. FRBR sets out “a clearly defined, structured framework for relating the data that are recorded in bibliographic records to the needs of the users of those records.” We need such a framework because...

Since the nineteenth century, the modern library has been the preeminent institution of responsibility and trust in the information landscape. The Catalog has done much to make this possible by providing a uniform vehicle for access and management of a variety of information resources. Rapid grown of the Internet and the revolutionary transition from physical to digital artifacts jeopardize the...

Vendors of all types face the problem of selecting a slate of product offerings—their assortment or catalog—that will maximize their profits. The profitability of a catalog is determined by both customer preferences and the offerings of their competitors. We develop a game-theoretic model for analyzing the vendor catalog optimization problem in the face of competing vendors. We show that comput...

The Fisher-Tully " 10 Mpc Catalog of Late-Type Galaxies " (FT, 1981) is remarkably complete. Despite the considerable effort that has been spent searching for and cataloging low surface brightness (LSB) galaxies, almost no new HI-rich galaxies have been added to the volume to which the FT observations were both sensitive (d < 10(M HI /10 8.2 M ⊙) 5/12 Mpc) and intended to be complete (d < 10 Mp...