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WMES3103 : INFORMATION RETRIEVAL WEEK 13 DIGITAL LIBRARIES 1 Go to the Internet Use a good search engine Look for DIGITAL LIBRARIES Definition – http://sunsite.berkeley.edu/ARL/definition.htm l 2 DIGITAL LIBRARY New area – emerged in the US in the 1990s Various names to imply the same entity Digital library - dLib Electronic library – eLib Virtual library As an international entity – encompasses every information source available on the Internet As an institutional project Information sources available on the Internet only Internet + CD-ROMs & other local networked resources 3 Different perceptions DL – considers information sources available on the Internet DL – a compilation of materials published electronically and those converted to digital form – questions – what should be digitised, how to do it, quality, cost Definition – various – takes into account storage and dissemination of information in electronic format 4 Definition and Purposes of a Digital Library Association of Research Libraries :October 23, 1995 Definition The elements that have been identified as common to these definitions are: The digital library is not a single entity; The digital library requires technology to link the resources of many; The linkages between the many digital libraries and information services are transparent to the end users; Universal access to digital libraries and information services is a goal; Digital library collections are not limited to document surrogates: they extend to digital artifacts that cannot be 5 represented or distributed in printed formats. DLs are constructed – collected and organized – by a community of users. Their functional capabilities support the information needs and uses of that community. DL is an extension, enhancement, and integration of a variety of information institutions as physical places where resources are selected, collected, organized, preserved and accessed in support of a user community. Baker, J. www.gslis.ucla.edu/DL/ Jan 1996 6 Digital libraries basically store materials in electronic format and manipulate large collections of those materials effectively. http://dli.grainger.uiuc.edu/glossary.htm Jan 2002 7 Provides access to documents in various languages Provides access to documents in various forms Various DL integrated to form a global or universal DL DL encompasses various aspects of computing – database management, human-computer interaction, information science, library science, multimedia language and system, networking, communications 8 The information retrieval component is important in DL To ensure effectiveness of use To ensure ease of use DL must support a large collection of documents, searching, cataloging / indexing 9 Problems A system / software that can integrate various DL Payment – required or not required ? Mode of payment? Searching for sources in languages other than English 10 Normally developed by an institution Initial – Core Project – prototype of an ELib using journal articles – chemistry – full-text of article – create an index for searching – build seraching mechanisms eg. Boolean operators – add documents – testing of various interfaces ENVISION project – 1991 Digital Libraries Initiative – 1994-1998 - 6 universities in America – each one studies a different component of ELib – all 6 integrated at the end of the project – focus = document collection, searching, interface 11 Sometimes developed by a country – history, culture, achievements Europe – ERCIM UK – eLib Initiative New Zealand Australia Singapore Malaysia ???? 12 MALAYSIA Projects from government and nongovernment agencies Smart school, ejournal (UKM, UM, UUM, dll), CLJ Online Academic libraries – cyber or digital Should be centralised at one agency MIMOS? MDC? Perpustakaan Negara Malaysia? 13 Example : FSKTM –3181 & 3182 projects History E-history book - 1 E-history workbook - 1 E-conference proceedings - 1 E-historical buildings - 4 E-historical personalities - 2 Interface - 1 Query - 1 14 DIGITAL OR NOT DIGITAL? Pustaka Maya Tan Sri Lim Goh Tong HUKM Perpustakaan Digital Siti Hasmah – MMU Perpustakaan Sultanah Zahariah – UTM – eIlmu MIMOS Digital Library http://www.digilib.mimos.my/ 15 16 17 18
