Web Interface (web + interface)

Distribution by Scientific Domains


Selected Abstracts


Science gateways made easy: the In-VIGO approach

CONCURRENCY AND COMPUTATION: PRACTICE & EXPERIENCE, Issue 6 2007
Andréa M. Matsunaga
Abstract Science gateways require the easy enabling of legacy scientific applications on computing Grids and the generation of user-friendly interfaces that hide the complexity of the Grid from the user. This paper presents the In-VIGO approach to the creation and management of science gateways. First, we discuss the virtualization of machines, networks and data to facilitate the dynamic creation of secure execution environments that meet application requirements. Then we discuss the virtualization of applications, i.e. the execution on shared resources of multiple isolated application instances with customized behavior, in the context of In-VIGO. A Virtual Application Service (VAS) architecture for automatically generating, customizing, deploying, and using virtual applications as Grid services is then described. Starting with a grammar-based description of the command-line syntax, the automated process generates the VAS description and the VAS implementation (code for application encapsulation and data binding) that is deployed and made available through a Web interface. A VAS can be customized on a per-user basis by restricting the capabilities of the original application or by adding to it features such as parameter sweeping. This is a scalable approach to the integration of scientific applications as services into Grids and can be applied to any tool with an arbitrarily complex command-line syntax. Copyright © 2006 John Wiley & Sons, Ltd. [source]


Gender and genre variation in weblogs

JOURNAL OF SOCIOLINGUISTICS, Issue 4 2006
Susan C. Herring
A relationship among language, gender, and discourse genre has previously been observed in informal, spoken interaction and formal, written texts. This study investigates the language/gender/genre relationship in weblogs, a popular new mode of computer-mediated communication (CMC). Taking as the dependent variables stylistic features identified in machine learning research and popularized in a Web interface called the Gender Genie, a multivariate analysis was conducted of entries from random weblogs in a sample balanced for author gender and weblog sub-genre (diary or filter). The results show that the diary entries contained more ,female' stylistic features, and the filter entries more ,male' stylistic features, independent of author gender. These findings problematize the characterization of the stylistic features as gendered, and suggest a need for more fine-grained genre analysis in CMC research. At the same time, it is observed that conventional associations of gender with certain spoken and written genres are reproduced in weblogs, along with their societal valuations. [source]


Testing and maintaining de-localized software systems in a multi-site environment using Web-based tools

JOURNAL OF SOFTWARE MAINTENANCE AND EVOLUTION: RESEARCH AND PRACTICE, Issue 3 2002
Balaji .V
Abstract Web-based approaches used during software maintenance for testing de-localized software in a multi-site environment are described. The supporting infrastructure uses the Internet for communications and project management practices for procedural direction. Processes involve specifying personnel roles and using a configuration management system for test schedules and the handling of test results. Different testing strategies are used during various stages of the maintenance lifecycle; each has benefits and weaknesses. Test results are automated using scripts, and a Web interface is provided to obtain better tracking. This achieves a operational effectiveness by using automation and regression testing mechanisms, and results in documented cost savings and software quality improvements. Copyright © 2002 John Wiley & Sons, Ltd. [source]


Is that authentic or artificial?

INFORMATION SYSTEMS JOURNAL, Issue 2 2006
Understanding consumer perceptions of risk in e-service encounters
Abstract. As companies race to digitize physical-based service processes repackaging them as online e-services, it becomes increasingly important to understand how consumers perceive the digitized e-service alternative. We theorize that consumers often perceive e-services as being artificial and non-authentic, and that consumers must perform this assessment when deciding whether new e-services are viable alternatives to traditional service methods. This research investigates whether consumer perceptions of artificiality increase perceptions of e-service risk, which has been shown to hamper consumer acceptance in a variety of online settings. An empirical study operationalized perceived artificiality (PA) within a controlled laboratory experiment that manipulated the risk of a specific e-service class (e-payments). For a specific e-service brand, PA is reduced when the web interface is viewed as easy to use; alternatively, PA is increased when consumers have relatively high risk perceptions about the overall e-service class. Furthermore, consumers who were rated as information technology innovators had lower overall artificiality perceptions, however, exposure to negatively framed e-service efficacy information removed this artificiality reducing effect. The theoretical linkages between PA and perceived risk, and the two antecedents , ease of use and e-service class risk , were confirmed by survey results. The implications of these results for future research as well as the design and marketing of e-services are examined. [source]


Image processing pipeline for synchrotron-radiation-based tomographic microscopy

JOURNAL OF SYNCHROTRON RADIATION, Issue 4 2010
C. Hintermüller
With synchrotron-radiation-based tomographic microscopy, three-dimensional structures down to the micrometer level can be visualized. Tomographic data sets typically consist of 1000 to 1500 projections of 1024 × 1024 to 2048 × 2048 pixels and are acquired in 5,15,min. A processing pipeline has been developed to handle this large amount of data efficiently and to reconstruct the tomographic volume within a few minutes after the end of a scan. Just a few seconds after the raw data have been acquired, a selection of reconstructed slices is accessible through a web interface for preview and to fine tune the reconstruction parameters. The same interface allows initiation and control of the reconstruction process on the computer cluster. By integrating all programs and tools, required for tomographic reconstruction into the pipeline, the necessary user interaction is reduced to a minimum. The modularity of the pipeline allows functionality for new scan protocols to be added, such as an extended field of view, or new physical signals such as phase-contrast or dark-field imaging etc. [source]


SMILIB: Rapid Assembly of Combinatorial Libraries in SMILES Notation

MOLECULAR INFORMATICS, Issue 7 2003
Andreas Schüller
Abstract A software tool was developed for fast combinatorial library enumeration (SMILIB). Its particular features are its simplicity to use, high flexibility in constructing combinatorial libraries and high speed of library construction. SMILIB offers the possibility to construct very large combinatorial libraries using the flexible and portable SMILES format. Libraries are generated at rates of approximately 30,000 molecules per minute. Combinatorial building blocks are attached to scaffolds by means of linkers rather than to concatenate them directly. This allows for creation of easily customized libraries using linkers of different size and chemical nature. A web interface for a limited web-based version of the software is available at URL: www.modlab.de. An unlimited binary version of SMILIB for command line execution on Linux systems is available from this URL. [source]


Management of metadata and automation for mail-in measurements with the APS 11-BM high-throughput, high-resolution synchrotron powder diffractometer

JOURNAL OF APPLIED CRYSTALLOGRAPHY, Issue 6 2009
Brian H. Toby
A high-resolution and high-throughput synchrotron powder diffractometer has been automated for use with samples that are mailed in by Advanced Photon Source users. Implementation of a relational database with web interfaces for both outside users and beamline staff, which is integrated into the facility-wide proposal and safety system, allows all aspects of beamline management to be integrated. This system permits users to request kits for mounting samples, to provide sample safety information, to obtain their collected data and to provide usage information upon project completion in a quick and simple manner. Beamline staff use a separate interface to note receipt of samples, schedule and collect diffraction data, post-process and quality-check data, and dispose of samples. The design of the software and database are discussed in detail. [source]