TagFS — Tag Semantics for Hierarchical File Systems

TagFS — Tag Semantics for Hierarchical File Systems Bonus Track: Introducing SemFS 2006 2006 Web3.0 2006 Stephan Bloehdorn Institute AIFB, University of Karlsruhe, Germany Olaf Görlitz ISWeb, University of Koblenz-Landau, Germany Simon Schenk ISWeb, University of Koblenz-Landau, Germany Max Völkel Forschungszentrum Informatik, Karlsruhe, Germany talk Max Völkel Forschungszentrum Informatik, Karlsruhe, Germany

Motivation ,[object Object],[object Object],[object Object],[object Object]

Hierarchical file systems have some problems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Tagging ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],new Web2.0

Example: del.icio.us Tagging Browsing Queries

Comparison ,[object Object],[object Object],a b a+b+c a+c b+c a+b c a b c /a /a/b /a/c /a /a/b /a/b/c /a/c /a/c/b /c /c/b /c/b/a /c/a /c/a/b /b /b/a /b/a/c /b/c /b/c/a

Mapping file system semantics to tagging semantics Query and Browse – the easy parts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mapping file system semantics to tagging semantics Tagging – the hard part ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Tagging in the file system ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Introducing SemFS ,[object Object],Web2.0 Web3.0 Semantic Desktop RDF keywords Bonus Track

What is a file system? Organising files … An address given as path expression := Letter “ : “ ( “ “ name)* File System dir! response files folders name metadata metadata

What is a file system? … managing binary data File System metadata data 1011 write 1011 read 1011

What is a file system? … managing binary data File System rename metadata data

What is a file system? … managing binary data File System Add file or delete file metadata data

What is a file system? Organising files and managing binary data ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What is a virtual file system? Organising files and managing binary data op Virtual File System Looks and behaves like a file system… … but is no file system. It‘s implemen-ted differently. metadata data X Flickr CMS File System metadata data

What is a semantic file system? Organising files and managing binary data. op Semantic File System Flexible implementation. Unified metadata  unified search metadata data X Flickr CMS File System

Architecture of SemFS: Filters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Architecture of SemFS: Example for Filters ,[object Object],[object Object],[object Object],[object Object],Main Artist Favourite y Musicatboy Slimavourite atboy Slimavourite avourite

Architecture of SemFS: Example for Filters ,[object Object],[object Object],[object Object],[object Object],Main Artist Favourite y Musicatboy Slimavourite atboy Slimavourite avourite ,[object Object],[object Object],[object Object],[object Object]

Architecture of SemFS: Class-Handlers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Architecture of SemFS: Summary: Metadata Graph, Filters, Class-Handlers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Using SemFS: A tagging file system (TagFS) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Download Prototype at http://isweb.uni-koblenz.de/Research (Linux only, WebDAV/Windows in progress) Thank you. Questions?

Contact Information ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

TagFS — Tag Semantics for Hierarchical File Systems

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