50,607 research outputs found
Collaborative Categorization on the Web
Collaborative categorization is an emerging direction for research and innovative
applications. Arguably, collaborative categorization on the Web is an especially
promising emerging form of collaborative Web systems because of both, the
widespread use of the conventional Web and the emergence of the Semantic Web
providing with more semantic information on Web data. This paper discusses this issue
and proposes two approaches: collaborative categorization via category merging and
collaborative categorization proper. The main advantage of the first approach is that it
can be rather easily realized and implemented using existing systems such as Web
browsers and mail clients. A prototype system for collaborative Web usage that uses
category merging for collaborative categorization is described and the results of field
experiments using it are reported. The second approach, called collaborative
categorization proper, however, is more general and scales better. The data structure and
user interface aspects of an approach to collaborative categorization proper are
discussed
Evolution of statistical analysis in empirical software engineering research: Current state and steps forward
Software engineering research is evolving and papers are increasingly based
on empirical data from a multitude of sources, using statistical tests to
determine if and to what degree empirical evidence supports their hypotheses.
To investigate the practices and trends of statistical analysis in empirical
software engineering (ESE), this paper presents a review of a large pool of
papers from top-ranked software engineering journals. First, we manually
reviewed 161 papers and in the second phase of our method, we conducted a more
extensive semi-automatic classification of papers spanning the years 2001--2015
and 5,196 papers. Results from both review steps was used to: i) identify and
analyze the predominant practices in ESE (e.g., using t-test or ANOVA), as well
as relevant trends in usage of specific statistical methods (e.g.,
nonparametric tests and effect size measures) and, ii) develop a conceptual
model for a statistical analysis workflow with suggestions on how to apply
different statistical methods as well as guidelines to avoid pitfalls. Lastly,
we confirm existing claims that current ESE practices lack a standard to report
practical significance of results. We illustrate how practical significance can
be discussed in terms of both the statistical analysis and in the
practitioner's context.Comment: journal submission, 34 pages, 8 figure
TLAD 2010 Proceedings:8th international workshop on teaching, learning and assesment of databases (TLAD)
This is the eighth in the series of highly successful international workshops on the Teaching, Learning and Assessment of Databases (TLAD 2010), which once again is held as a workshop of BNCOD 2010 - the 27th International Information Systems Conference. TLAD 2010 is held on the 28th June at the beautiful Dudhope Castle at the Abertay University, just before BNCOD, and hopes to be just as successful as its predecessors.The teaching of databases is central to all Computing Science, Software Engineering, Information Systems and Information Technology courses, and this year, the workshop aims to continue the tradition of bringing together both database teachers and researchers, in order to share good learning, teaching and assessment practice and experience, and further the growing community amongst database academics. As well as attracting academics from the UK community, the workshop has also been successful in attracting academics from the wider international community, through serving on the programme committee, and attending and presenting papers.This year, the workshop includes an invited talk given by Richard Cooper (of the University of Glasgow) who will present a discussion and some results from the Database Disciplinary Commons which was held in the UK over the academic year. Due to the healthy number of high quality submissions this year, the workshop will also present seven peer reviewed papers, and six refereed poster papers. Of the seven presented papers, three will be presented as full papers and four as short papers. These papers and posters cover a number of themes, including: approaches to teaching databases, e.g. group centered and problem based learning; use of novel case studies, e.g. forensics and XML data; techniques and approaches for improving teaching and student learning processes; assessment techniques, e.g. peer review; methods for improving students abilities to develop database queries and develop E-R diagrams; and e-learning platforms for supporting teaching and learning
TLAD 2010 Proceedings:8th international workshop on teaching, learning and assesment of databases (TLAD)
This is the eighth in the series of highly successful international workshops on the Teaching, Learning and Assessment of Databases (TLAD 2010), which once again is held as a workshop of BNCOD 2010 - the 27th International Information Systems Conference. TLAD 2010 is held on the 28th June at the beautiful Dudhope Castle at the Abertay University, just before BNCOD, and hopes to be just as successful as its predecessors.The teaching of databases is central to all Computing Science, Software Engineering, Information Systems and Information Technology courses, and this year, the workshop aims to continue the tradition of bringing together both database teachers and researchers, in order to share good learning, teaching and assessment practice and experience, and further the growing community amongst database academics. As well as attracting academics from the UK community, the workshop has also been successful in attracting academics from the wider international community, through serving on the programme committee, and attending and presenting papers.This year, the workshop includes an invited talk given by Richard Cooper (of the University of Glasgow) who will present a discussion and some results from the Database Disciplinary Commons which was held in the UK over the academic year. Due to the healthy number of high quality submissions this year, the workshop will also present seven peer reviewed papers, and six refereed poster papers. Of the seven presented papers, three will be presented as full papers and four as short papers. These papers and posters cover a number of themes, including: approaches to teaching databases, e.g. group centered and problem based learning; use of novel case studies, e.g. forensics and XML data; techniques and approaches for improving teaching and student learning processes; assessment techniques, e.g. peer review; methods for improving students abilities to develop database queries and develop E-R diagrams; and e-learning platforms for supporting teaching and learning
Toward Universal Broadband in Rural Alaska
The TERRA-Southwest project is extending broadband service to 65 communities in the
Bristol Bay, Bethel and Yukon-Kuskokwim regions. A stimulus project funded by a combination
of grants and loans from the Rural Utilities Service (RUS), TERRA-Southwest has installed a
middle-mile network using optical fiber and terrestrial microwave. Last-mile service will be
through fixed wireless or interconnection with local telephone networks.
The State of Alaska, through its designee Connect Alaska, also received federal stimulus
funding from the National Telecommunications and Information Administration (NTIA) for tasks
that include support for an Alaska Broadband Task Force âto both formalize a strategic broadband
plan for the state of Alaska and coordinate broadband activities across relevant agencies and
organizations.â
Thus, a study of the impact of the TERRA project in southwest Alaska is both relevant and
timely. This first phase provides baseline data on current access to and use of ICTs and Internet
connectivity in rural Alaska, and some insights about perceived benefits and potential barriers to
adoption of broadband. It is also intended to provide guidance to the State Broadband Task Force
in determining how the extension of broadband throughout the state could contribute to education,
social services, and economic activities that would enhance Alaskaâs future. Results of the
research could also be used proactively to develop strategies to encourage broadband adoption,
and to identify applications and support needed by users with limited ICT skills.Connect Alaska.
The National Telecommunications and Information Administration.
General Communications Incorporated.Part 1: An Analysis of Internet Use in Southwest Alaska / Introduction / Previous Studies / Current Connectivity / Analytical Framework and Research Methodology / Demographics / Mobile Phones: Access and Use / Access to the Internet / Internet Useage / Considerations about Internet Service / Interest in Broadband / Sources of News / Comparison with National Data / Internet Use by Businesses and Organizations / What Difference may Broadband make in the Region? / Conclusiongs / Part 2 Literature Review / Reference
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