X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=doc%2Fintroduction.xml;h=47096a3c826ef4ceb7d693db1d02080bbc628e0f;hb=b19b79e382ef8196f1625763db1af3a82b1e0c81;hp=ff4e41e7a0cc34c0b6ad652365d8c5ad69ba0656;hpb=5ca4e60e990af6ad6b62ebff855d7b642f37c3ec;p=idzebra-moved-to-github.git diff --git a/doc/introduction.xml b/doc/introduction.xml index ff4e41e..47096a3 100644 --- a/doc/introduction.xml +++ b/doc/introduction.xml @@ -1,5 +1,5 @@ - + Introduction
@@ -7,10 +7,10 @@ &zebra; is a free, fast, friendly information management system. It can - index records in XML/SGML, MARC, e-mail archives and many other + index records in &xml;/&sgml;, &marc;, e-mail archives and many other formats, and quickly find them using a combination of boolean searching and relevance ranking. Search-and-retrieve applications can - be written using APIs in a wide variety of languages, communicating + be written using &api;s in a wide variety of languages, communicating with the &zebra; server using industry-standard information-retrieval protocols or web services. @@ -23,7 +23,7 @@ &zebra; is a networked component which acts as a reliable &z3950; server for both record/document search, presentation, insert, update and delete operations. In addition, it understands the &sru; family of - webservices, which exist in REST GET/POST and truly SOAP flavors. + webservices, which exist in &rest; &get;/&post; and truly &soap; flavors. &zebra; is available as MS Windows 2003 Server (32 bit) self-extracting @@ -42,7 +42,7 @@ &zebra; is a high-performance, general-purpose structured text indexing and retrieval engine. It reads records in a - variety of input formats (eg. email, XML, MARC) and provides access + variety of input formats (eg. email, &xml;, &marc;) and provides access to them through a powerful combination of boolean search expressions and relevance-ranked free-text queries. @@ -51,13 +51,13 @@ &zebra; supports large databases (tens of millions of records, tens of gigabytes of data). It allows safe, incremental database updates on live systems. Because &zebra; supports - the industry-standard information retrieval protocol, Z39.50, + the industry-standard information retrieval protocol, &z3950;, you can search &zebra; databases using an enormous variety of programs and toolkits, both commercial and free, which understand this protocol. Application libraries are available to allow bespoke clients to be written in Perl, C, C++, Java, Tcl, Visual - Basic, Python, PHP and more - see the - ZOOM web site + Basic, Python, &php; and more - see the + &zoom; web site for more information on some of these client toolkits. @@ -87,24 +87,24 @@ Boolean query language - CQL and RPN/PQF - The type-1 Reverse Polish Notation (RPN) - and it's textual representation Prefix Query Format (PQF) are - supported. The Common Query Language (CQL) can be configured as - a mapping from CQL to RPN/PQF + &cql; and &rpn;/&pqf; + The type-1 Reverse Polish Notation (&rpn;) + and it's textual representation Prefix Query Format (&pqf;) are + supported. The Common Query Language (&cql;) can be configured as + a mapping from &cql; to &rpn;/&pqf; Operation types - Z39.50/SRU explain, search, and scan + &z3950;/&sru; explain, search, and scan Recursive boolean query tree - CQL and RPN/PQF - Both CQL and RPN/PQF allow atomic query parts (APT) to + &cql; and &rpn;/&pqf; + Both &cql; and &rpn;/&pqf; allow atomic query parts (&apt;) to be combined into complex boolean query trees @@ -119,8 +119,8 @@ Complex semi-structured Documents - XML and GRS-1 Documents - Both XML and GRS-1 documents exhibit a DOM like internal + &xml; and &grs1; Documents + Both &xml; and &grs1; documents exhibit a &dom; like internal representation allowing for complex indexing and display rules @@ -138,12 +138,12 @@ Input document formats - XML, SGML, Text, ISO2709 (MARC) + &xml;, &sgml;, Text, ISO2709 (&marc;) A system of input filters driven by regular expressions allows most ASCII-based data formats to be easily processed. - SGML, XML, ISO2709 (MARC), and raw text are also + &sgml;, &xml;, ISO2709 (&marc;), and raw text are also supported. @@ -178,7 +178,7 @@ Remote update - Z39.50 extended services + &z3950; extended services @@ -192,12 +192,12 @@ - Z39.50 - Z39.50 protocol support + &z3950; + &z3950; protocol support Protocol facilities: Init, Search, Present (retrieval), Segmentation (support for very large records), Delete, Scan (index browsing), Sort, Close and support for the ``update'' - Extended Service to add or replace an existing XML + Extended Service to add or replace an existing &xml; record. Piggy-backed presents are honored in the search request. Named result sets are supported. @@ -206,18 +206,18 @@ Record Syntaxes Multiple record syntaxes - for data retrieval: GRS-1, SUTRS, - XML, ISO2709 (MARC), etc. Records can be mapped between record syntaxes + for data retrieval: &grs1;, &sutrs;, + &xml;, ISO2709 (&marc;), etc. Records can be mapped between record syntaxes and schemas on the fly. Web Service support - SRU GET/POST/SOAP + &sru_gps; The protocol operations explain, searchRetrieve and scan - are supported. CQL to internal - query model RPN conversion is supported. Extended RPN queries + are supported. &cql; to internal + query model &rpn; conversion is supported. Extended RPN queries for search/retrieve and scan are supported. @@ -316,7 +316,7 @@ In early 2005, the Koha project development team began looking at - ways to improve MARC support and overcome scalability limitations + ways to improve &marc; support and overcome scalability limitations in the Koha 2.x series. After extensive evaluations of the best of the Open Source textual database engines - including MySQL full-text searching, PostgreSQL, Lucene and Plucene - the team @@ -335,7 +335,7 @@ and relevance-ranked free-text queries, both of which the Koha 2.x series lack. &zebra; also supports incremental and safe database updates, which allow on-the-fly record - management. Finally, since &zebra; has at its heart the Z39.50 + management. Finally, since &zebra; has at its heart the &z3950; protocol, it greatly improves Koha's support for that critical library standard." @@ -365,12 +365,12 @@ from virtually any computer with an Internet connection, has template based layout allowing anyone to alter the visual appearance of Emilda, and is - XML based language for fast and easy portability to virtually any + &xml; based language for fast and easy portability to virtually any language. Currently, Emilda is used at three schools in Espoo, Finland. - As a surplus, 100% MARC compatibility has been achieved using the + As a surplus, 100% &marc; compatibility has been achieved using the &zebra; Server from Index Data as backend server.
@@ -382,18 +382,18 @@ is a netbased library service offering all traditional functions on a very high level plus many new services. Reindex.net is a comprehensive and powerful WEB system - based on standards such as XML and Z39.50. - updates. Reindex supports MARC21, danMARC eller Dublin Core with + based on standards such as &xml; and &z3950;. + updates. Reindex supports &marc21;, dan&marc; eller Dublin Core with UTF8-encoding. Reindex.net runs on GNU/Debian Linux with &zebra; and Simpleserver from Index Data for bibliographic data. The relational database system - Sybase 9 XML is used for + Sybase 9 &xml; is used for administrative data. - Internally MARCXML is used for bibliographical records. Update - utilizes Z39.50 extended services. + Internally &marcxml; is used for bibliographical records. Update + utilizes &z3950; extended services. @@ -458,8 +458,8 @@ The &zebra; information retrieval indexing machine is used inside the Alvis framework to manage huge collections of natural language processed and - enhanced XML data, coming from a topic relevant web crawl. - In this application, &zebra; swallows and manages 37GB of XML data + enhanced &xml; data, coming from a topic relevant web crawl. + In this application, &zebra; swallows and manages 37GB of &xml; data in about 4 hours, resulting in search times of fractions of seconds. @@ -481,9 +481,9 @@ The member libraries send in data files representing their periodicals, including both brief bibliographic data and summary - holdings. Then 21 individual Z39.50 targets are created, each + holdings. Then 21 individual &z3950; targets are created, each using &zebra;, and all mounted on the single hardware server. - The live service provides a web gateway allowing Z39.50 searching + The live service provides a web gateway allowing &z3950; searching of all of the targets or a selection of them. &zebra;'s small footprint allows a relatively modest system to comfortably host the 21 servers. @@ -495,7 +495,7 @@
- NLI-Z39.50 - a Natural Language Interface for Libraries + NLI-&z3950; - a Natural Language Interface for Libraries Fernuniversität Hagen in Germany have developed a natural language interface for access to library databases. @@ -504,8 +504,8 @@ In order to evaluate this interface for recall and precision, they chose &zebra; as the basis for retrieval effectiveness. The &zebra; server contains a copy of the GIRT database, consisting of more - than 76000 records in SGML format (bibliographic records from - social science), which are mapped to MARC for presentation. + than 76000 records in &sgml; format (bibliographic records from + social science), which are mapped to &marc; for presentation. (GIRT is the German Indexing and Retrieval Testdatabase. It is a @@ -627,16 +627,16 @@ - Improved support for XML in search and retrieval. Eventually, + Improved support for &xml; in search and retrieval. Eventually, the goal is for &zebra; to pull double duty as a flexible - information retrieval engine and high-performance XML + information retrieval engine and high-performance &xml; repository. The recent addition of XPath searching is one example of the kind of enhancement we're working on. - There is also the experimental ALVIS XSLT - XML input filter, which unleashes the full power of DOM based - XSLT transformations during indexing and record retrieval. Work + There is also the experimental ALVIS &xslt; + &xml; input filter, which unleashes the full power of &dom; based + &xslt; transformations during indexing and record retrieval. Work on this filter has been sponsored by the ALVIS EU project . We expect this filter to mature soon, as it is planned to be included in the version 2.0 @@ -647,9 +647,9 @@ Finalisation and documentation of &zebra;'s C programming - API, allowing updates, database management and other functions - not readily expressed in Z39.50. We will also consider - exposing the API through SOAP. + &api;, allowing updates, database management and other functions + not readily expressed in &z3950;. We will also consider + exposing the &api; through &soap;.