159,819 research outputs found
Telescope Bibliographies: an Essential Component of Archival Data Management and Operations
Assessing the impact of astronomical facilities rests upon an evaluation of
the scientific discoveries which their data have enabled. Telescope
bibliographies, which link data products with the literature, provide a way to
use bibliometrics as an impact measure for the underlying data. In this paper
we argue that the creation and maintenance of telescope bibliographies should
be considered an integral part of an observatory's operations. We review the
existing tools, services, and workflows which support these curation
activities, giving an estimate of the effort and expertise required to maintain
an archive-based telescope bibliography.Comment: 10 pages, 3 figures, to appear in SPIE Astronomical Telescopes and
Instrumentation, SPIE Conference Series 844
Delivering the Maori-language newspapers on the Internet
Although any collection of historical newspapers provides a particularly rich and valuable record of events and social and political commentary, the content tends to be difficult to access and extremely time-consuming to browse or search. The advent of digital libraries has meant that for electronically stored text, full-text searching is now a tool readily available for researchers, or indeed anyone wishing to have asscess to specific information in text. Text in this form can be readily distributed via CD-ROM or the Internet, with a significant impact on accessibility over traditional microfiche or hard-copy distribution. For the majority of text being generated de nouveau, availability in electronic form is standard, and hence the increasing use of full-text search facilities. However, for legacy text available only in printed form, the provision of these electronic search tools is dependent on the prior electronic capture of digital facsimile images of the printed text, followed by the conversion of these images to electronic text through the process of optical character recognition (OCR). This article describes a project undertaken at the University of Waikato over the period 1999 to 2001 to produce a full-text searchable version of the Niupepa or Maori- language newspaper collection for delivery over the Internet
A Review on Software Architectures for Heterogeneous Platforms
The increasing demands for computing performance have been a reality
regardless of the requirements for smaller and more energy efficient devices.
Throughout the years, the strategy adopted by industry was to increase the
robustness of a single processor by increasing its clock frequency and mounting
more transistors so more calculations could be executed. However, it is known
that the physical limits of such processors are being reached, and one way to
fulfill such increasing computing demands has been to adopt a strategy based on
heterogeneous computing, i.e., using a heterogeneous platform containing more
than one type of processor. This way, different types of tasks can be executed
by processors that are specialized in them. Heterogeneous computing, however,
poses a number of challenges to software engineering, especially in the
architecture and deployment phases. In this paper, we conduct an empirical
study that aims at discovering the state-of-the-art in software architecture
for heterogeneous computing, with focus on deployment. We conduct a systematic
mapping study that retrieved 28 studies, which were critically assessed to
obtain an overview of the research field. We identified gaps and trends that
can be used by both researchers and practitioners as guides to further
investigate the topic
GRBlog: A Database for Gamma-Ray Bursts
GRBlog is an on-line database providing researchers with quick access to all
information reported in the GCN Circulars. Users of the GRBlog web site
(grad40.as.utexas.edu/grblog.php) can search the circulars and produce
afterglow light curve plots, or compile data tables. The site also offers
advanced search capabilities to aide in statistical studies or comparative
research. Most of the GCNs have already been entered into the GRBlog database,
with the remainder to follow shortly.Comment: 4 pages, 2 figures. Proceedings for the 2003 GRB Conference (Santa
Fe, NM, 2003 Sep 8-12
IEAD: A Novel One-Line Interface to Query Astronomical Science Archives
In this article I present IEAD, a new interface for astronomical science
databases. It is based on a powerful, yet simple, syntax designed to completely
abstract the user from the structure of the underlying database. The
programming language chosen for its implementation, JavaScript, makes it
possible to interact directly with the user and to provide real-time
information on the parsing process, error messages, and the name resolution of
targets; additionally, the same parsing engine is used for context-sensitive
autocompletion. Ultimately, this product should significantly simplify the use
of astronomical archives, inspire more advanced uses of them, and allow the
user to focus on what scientific research to perform, instead of on how to
instruct the computer to do it.Comment: 13 pages, PASP in pres
TechNews digests: Jan - Mar 2010
TechNews is a technology, news and analysis service aimed at anyone in the education sector keen to stay informed about technology developments, trends and issues. TechNews focuses on emerging technologies and other technology news. TechNews service : digests september 2004 till May 2010 Analysis pieces and News combined publish every 2 to 3 month
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