Linked by Thom Holwerda on Sat 14th Jul 2007 20:06 UTC, submitted by AdamW
"PC users have volumes of information saved on their computers, most of it disconnected and disparate save for a basic directory system. The answer to connecting all the information into a local semantic Web of information is closer than you might think. Thanks to the open source NEPOMUK (Networked Environment for Personalized, Ontology-based Management of Unified Knowledge) effort, the Semantic Desktop isn't a dream; it's an emerging reality and will be here with the upcoming release of KDE 4 for the Linux desktop."
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RE[5]: I have been waiting...
by WereCatf on Sun 15th Jul 2007 15:58
in reply to "RE[4]: I have been waiting..."
Member since:2006-02-15
I just started thinking about something..If you f.ex. save a file from an email, and the saved file automatically acquires metadata such as the sender's email address, couldn't this be considered potentially a threat if there's several users on the same computer? If the file's metadata is readable by other users and they have read-access to even some of your files, they could learn email addresses of the people you stay in contact with etc. In that case it'd help if the metadata was accessible only by the owner of the file, but what if sooner or later f.ex. system files are populated with metadata? The only way I can think of how to fix that would be to have two kinds of metadata: private and public.
RE[6]: I have been waiting...
by aseigo on Sun 15th Jul 2007 16:22
in reply to "RE[5]: I have been waiting..."
Member since:2005-07-06
RE[6]: I have been waiting...
by anda_skoa on Sun 15th Jul 2007 16:49
in reply to "RE[5]: I have been waiting..."
Member since:2005-07-07
If you f.ex. save a file from an email, and the saved file automatically acquires metadata such as the sender's email address, couldn't this be considered potentially a threat if there's several users on the same computer?
Aaron already answered this, but just a bit more detailed: the acquired relation data is stored in an relation database separate from the file. Thus the file itself remains "clean".
For some kind of data it might make sense to also store it in the file or in extended file system attributes. This is currently not implemented AFAIK and as Aaron pointed out, would be subject to policies.
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Member since:
2005-07-07
Manual tagging is just one of the sources envisioned here.
Manual tagging allows you to enhance meta data an relations by information that is closer to your way of thinking, thus allowing you to take this personal information into account when searching.
But semantic information can also be derived automatically, by the software handling your data.
The article offers the example of relating a file to the email it was saved from. Such an information can be added by the email program automatically on save.
Together with the also automatically derivable information about the email's sender (e.g. by indexing the emails), you can then search for the file by just knowing who sent it.
Proper integration into applications will ensure that (less) information is lost during operations.
Manual tagging can be used to add information not available to any of the involved applications, especially subjective values like "uhh, pretty!"