Dear David,
You use categories, logic and rules in databases too. What is the type of
sale? What is the maximum credit a client is allowed? (01)
A knowledge base does not need to be a collection of singletons, and
generally is not. I expect a knowledge base to have a lot of classification
and whole-part relationships, but you might think of them more in relation
to what the whole-part relations were between rather than as a separate
collection with the same structure relating different things. It is just
that with a knowledge base you do not need to think about these things
before you start, with a database you do. (02)
Regards (03)
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. (04)
-----Original Message-----
From: ontolog-forum-bounces@xxxxxxxxxxxxxxxx
[mailto:ontolog-forum-bounces@xxxxxxxxxxxxxxxx] On Behalf Of David Whitten
Sent: 06 January 2015 19:36
To: [ontolog-forum]
Subject: Re: [ontolog-forum] knowledge base and DBs (05)
Thank you Matt, (06)
This is an intriguing idea to me, that the number of individuals that have a
particular structure is the defining characteristic of when to use a
database or a knowledge base. (07)
Do you think that because a knowledge base is mostly a collection of
singletons, that effectively using a knowledge base predisposes one to want
to use logic, rules, and categories to describe it? (08)
David Whitten
713-870-3834 (09)
On Tue, Jan 6, 2015 at 2:00 PM, Matthew West <dr.matthew.west@xxxxxxxxx>
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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