Reports, Digital Library Research Laboratory
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Browsing Reports, Digital Library Research Laboratory by Subject "Digital libraries"
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- CTRnet Final ReportFox, Edward A.; Shoemaker, Donald J.; Sheetz, Steven D.; Kavanaugh, Andrea L.; Ramakrishnan, Naren (2013-08-26)The CTRnet project team has been developing a digital library including many webpage archives and tweet archives related to disasters, in collaboration with the Internet Archive. The goals of the CTRnet project are to provide such archived data sets for analysis, including by researchers who are seeking deep insights about those events, and to support a range of services and infrastructure regarding those tragic events for the various stakeholders and the general public, allowing them to study and learn.
- High Performance Interoperable Digital Libraries in the Open Archives InitiativeFox, Edward A.; Sanchez, J. Alfredo; Garza-Salazar, David (2004-01-31)The scope of this project is high performance mechanisms for interoperable distributed digital repositories. We apply Open Archives Initiative ideas and concepts to the storage and retrieval of electronic theses and dissertations (ETDs), and work to make these more available to students by means of visualization tools.
- MARIAN DesignFrance, Robert K.; Cline, Ben E.; Fox, Edward A. (1995-02-14)MARIAN (Multiple Access Retrieval of library Information with ANotations) is an online library catalog information system. Intended for library end-users rather than catalogers, it provides controlled search by author, subject entry, and imprint; keyword search by title, subject, and other MARC text fields; feedback, locating the closest books to a relevant book or books; and user annotations of books.
- Multiple Metadata / Best Metadata ReturnSuleman, Hussein; Nelson, Michael (2001-10-19)The OAI protocol currently supports a simple mapping of metadata names to metadata formats, whereby a metadata record can be requested for exactly one record in exactly one format in a single GetRecord request. In the case of ListRecords, all records within a set and/or date range may be requested but there is still the restriction of a single metadata format. This is usually sufficient for simple harvesting with the intention of transferring a stream of metadata records from the source archive to a service provider. However, in some cases, it may be desirable to obtain the most complete metadata format or a set of metadata formats for an identifier. In order to accomplish this it is currently necessary to submit multiple requests with different parameters and this is not most efficient.
- NSF 3rd Year Report: CTRnet: Integrated Digital Library Support for Crisis, Tragedy, and RecoveryFox, Edward A.; Shoemaker, Donald J.; Sheetz, Steven D.; Kavanaugh, Andrea L.; Ramakrishnan, Naren (2012-07-01)The Crisis, Tragedy and Recovery (CTR) network, or CTRnet, is a human and digital library network for providing a range of services relating to different kinds of tragic events, including broad collaborative studies related to Egypt, Tunisia, Mexico, and Arlington, Virginia. Through this digital library, we collect and archive different types of CTR related information, and apply advanced information analysis methods to this domain. It is hoped that services provided through CTRnet can help communities, as they heal and recover from tragic events. We have taken several major steps towards our goal of building a digital library for CTR events. Different strategies for collecting comprehensive information surrounding various CTR events have been explored, initially using school shooting events as a testbed. Many GBs worth of related data has been collected using the web crawling tools and methodologies we developed. Several different methods for removing non-relevant pages (noise) from the crawled data have been explored. A focused crawler is being developed with the aim of providing users the ability to build high quality collections for CTR events focused on their interests. Use of social media for CTRnet related research is being explored. Software to integrate the popular social networking site Facebook with the CTRnet digital library has been prototyped, and is being developed further. Integration of the popular micro-blogging site Twitter with the CTRnet digital library has proceeded well, and is being further automated, becoming a key part of our methodology.
- NSF Year 1 Report for CTRnet: Integrated Digital Library Support for Crisis, Tragedy, and RecoveryFox, Edward A.; Shoemaker, Donald J.; Sheetz, Steven D.; Kavanaugh, Andrea L.; Ramakrishnan, Naren (2010-07-08)The Crisis, Tragedy and Recovery network, or CTRnet, is a human and digital library network for providing a range of services relating to different kinds of tragic events. Through this digital library, we will collect and archive different types of CTR related information, and apply advanced information analysis methods to this domain. It is hoped that services provided through CTRnet can help communities, as they heal and recover from tragic events. We have taken several major steps towards our goal of building a digital library for CTR events. Different strategies for collecting comprehensive information surrounding various CTR events have been explored, using school shooting events as a testbed. Several GBs worth of school shootings related data has been collected using the web crawling tools and methodologies we developed. Several different methods for removing non-relevant pages (noise) from the crawled data have been explored. A focused crawler is being developed with the aim of providing users the ability to build high quality collections for CTR events focused on their interests. Use of social media for CTRnet related research is being explored. Software to integrate the popular social networking site Facebook with the CTRnet digital library has been prototyped, and is being developed further. Integration of the popular micro-blogging site Twitter with the CTRnet digital library is being explored.
- Set OrthogonalitySuleman, Hussein; Zubair, Mohammad (2001-10-19)There is no way to determine all the sets that an identifier belongs to. This is typically referred to as set orthogonality because the protocol allows a harvester to find out which identifiers belong to a particular set but not vice versa. This is not as much of a problem for a flat space of archives, but organizations like NDLTD and NCSTRL have already started to create hierarchical catalogs based on OAI and existing set information is lost at the very first level. Also, the Internet2 Distributed Storage Initiative wants to work on replication of OAs - this will mean harvesting every set and dealing with duplicates. Can we do this in a way that is more efficient without adding to the complexity?
- Use and Usability in a Digital Library Search SystemFrance, Robert K.; Nowell, Lucy Terry; Fox, Edward A.; Saad, Rani A.; Zhao, Jianxin (Virginia Tech Digital Library Research Laboratory, 1999)Digital libraries must reach out to users from all walks of life, serving information needs at all levels. To do this, they must attain high standards of usability over an extremely broad audience. This paper details the evolution of one important digital library component as it has grown in functionality and usefulness over several years of use by a live, unrestricted community. Central to its evolution have been user studies, analysis of use patterns, and formative usability evaluation. We extrapolate that all three components are necessary in the production of successful digital library systems.