David -- (01)
I'm not a KR professional, just someone who is strongly interested in
what the many smart folks in KR know. I was just trying to point out
that people *outside* KR may require a bit of re-education. (02)
I have spent a lot of time in "knowledge management" -- a fuzzy-edged
domain in which the term _knowledgebase_ crops up frequently and with
many different definitions. KM people can't even agree on the meaning of
_knowledge_. (03)
Part of the problem, I suspect, is that the phrase _knowledge-based
systems_ (from KR) morphed into _knowledgebase_ for many in KM. Others
in KM simply thought the term was cool and expropriated it ... sans
original sens. (04)
A search for _knowledgebase_ on Google suggests that the number of
different definitions of the term may approach infinity. (05)
However, it is good to see the term occasionally used at least in a
sensible (if still rather imprecise) manner outside of KR -- for
example, in tools that support deconstruction of meaning into nodes and
[typed] relationships. (06)
Phil Murray (07)
David Whitten wrote:
> Phil,
> Since the Knowledge Representation area of discourse is the only one
> you feel comfortable committing to for a distinction, could you answer
> the question (within the KR area of discourse) what you think is the answer
> to Alexander Castro's original question about the
> "difference between a DB and a knowledge base" ?
>
> Dave Whitten
> 713-870-3834
>
>
> On Tue, Jan 6, 2015 at 2:35 PM, Phil Murray <pcmurray2000@xxxxxxxxx> wrote:
>> And the term "knowledgebase" is used *very* loosely outside of Knowledge
>> Representation, sometimes implying little more than a searchable text
>> resource. So a lot of folks will need a very clear basic explanation of
>> what *you* mean by the term.
>>
>> Phil Murray
>>
>> Matthew West wrote:
>>> Dear David and Alexander,
>>> Hmmm. Well to my mind the biggest difference is not to do with operations
>>> and logic, SQL is very competent. The key difference is that a database has
>>> a structure that is defined at database definition time, and data that is
>>> added at runtime. On the other hand, a knowledge base has minimal structure,
>>> and is defined by the type of knowledge base used. None of this has much to
>>> do with what you can do with the different approaches, and a lot of things
>>> you can do with either. A database is likely to be more efficient when there
>>> are a lot of records with the same structure to be stored and referred to. A
>>> knowledgebase is likely to be more efficient when flexibility in structure
>>> is what is required.
>>>
>>> Regards
>>>
>>> Matthew West
>>> Information Junction
>>> Mobile: +44 750 3385279
>>> Skype: dr.matthew.west
>>> matthew.west@xxxxxxxxxxxxxxxxxxxxxxxxx
>>> http://www.informationjunction.co.uk/
>>> https://www.matthew-west.org.uk/
>>> This email originates from Information Junction Ltd. Registered in England
>>> and Wales No. 6632177.
>>> Registered office: 8 Ennismore Close, Letchworth Garden City, Hertfordshire,
>>> SG6 2SU.
>>>
>>>
>>>
>>> -----Original Message-----
>>> From: ontolog-forum-bounces@xxxxxxxxxxxxxxxx
>>> [mailto:ontolog-forum-bounces@xxxxxxxxxxxxxxxx] On Behalf Of David Whitten
>>> Sent: 06 January 2015 17:07
>>> To: [ontolog-forum]
>>> Subject: Re: [ontolog-forum] knowledge base and DBs
>>>
>>> In my mind, one of the big differences between a database (db) and a
>>> knowledge base (kb):
>>>
>>> a databases store information, and may actually include calculated
>>> information that is dependent on the stored information. Basically, a
>>> storage facility for known facts.
>>>
>>> a knowledge base includes all that is in a database but also includes the
>>> activity of inference from information, and has a far more sophisticated
>>> model of hierarchical categories of information. A knowledge base also
>>> includes all the standard First Order Predicate Calculus operations: AND OR
>>> NOT FORALL THEREEXISTS as well. Knowledge bases handle infinite groups of
>>> facts as it were.
>>>
>>> Does anyone have something to add to this?
>>>
>>> Dave Whitten
>>> 713-870-3834
>>>
>>>
>>> On Tue, Jan 6, 2015 at 11:33 AM, Alexander Garcia Castro
>>> <alexgarciac@xxxxxxxxx> wrote:
>>>> Hi all, I am having some troubles explaining the difference between a
>>>> DB and a knowledge base, can someone let me know the difference?
>>>>
>>>> --
>>>> Alexander Garcia
>>>> http://www.alexandergarcia.name/
>>>> http://www.usefilm.com/photographer/75943.html
>>>> http://www.linkedin.com/in/alexgarciac
>>>>
>>>>
>>>>
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