1 / 13

LogicSQL-based Enterprise Archive and Search System

LogicSQL-based Enterprise Archive and Search System. Li-Yan Yuan. How to organize the information and make it accessible and useful ?. Projects. How to develop an enterprise search engine based on a database management system challenges:

alina
Download Presentation

LogicSQL-based Enterprise Archive and Search System

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LogicSQL-based Enterprise Archive and Search System Li-Yan Yuan How to organize the information and make it accessible and useful ?

  2. Projects • How to develop an enterprise search engine based on a database management system challenges: implementation of the inverted index

  3. Projects • How to implement the TOP K query • Ranking formula • Inverted indexes are created with respect to frequences

  4. Internet search • Search for relevant web pages • Good answers: • Relevant • Popular • Public domain knowledge, • Search engines are critical to Internet use • internal workings are secret • Tremendous political, economical, and cultural power

  5. Enterprise search • Search the enterprise information systems for right information • Enterprise information • Internal web pages • Internal documentation systems • File systems • Databases • Email servers • The internet and enterprise domains differ fundamentally • Contents • User behavior • Economic motivations

  6. Top-K Query • Objective • How to determine the top K objects that are most likely (approximately) related to the given query • Applications • Information retrieval • Internet and enterprise searches • Multimedia similarity search • Scheduling large scale on-demand data broadcase • ……

  7. Development of Enterprise Search Systems

  8. LogicSQL Enterprise information Archive and Search system • LogicSQL An object-relational database management system • New concurrency control algorithm • Staged database architecture • Developed in the University of Alberta • Commercialized by Shanghai Shifang Software Co.

  9. Enterprise Archive and Search System • To archive all the enterprise information contents • File systems • Web pages • Emails • Internal documents • Database records? • To provide a web styled search engine • To support user-specified ranking algorithms • focus on the platform of archive and search • Easy implementation and test of various ranking algorithms

  10. Enterprise Archive and Search System • Extend the database functionalities • Security model • Users, roles + security handle • Security primary key • New database objects • Inverted indexes • CREATE INVERTED INDEX • DROP INVESTED INDEX • Automatic population, similar to that of index • ORDER BY clause • User specified aggregate functions • CREATE AGGREGATE FUNCTION • Top-K query evaluation • Specified crawlers

  11. Enterprise Archive and Search System • User configuration • Set up crawlers • Create a list of inverted indexes • Create one aggregate function for object ranking • Extend the query languages • Implement the top K query algorithm • Web based query pages

More Related