[Data-modeling] remove /architecture/tower type

[Iain Sproat]

Tim,
Structure <http://www.freebase.com/view/architecture/structure> is found in
the Architecture <http://www.freebase.com/view/architecture> commons, so is
specific to architectural structures and is applicable to most things from
aqueducts <http://www.freebase.com/view/en/pontcysyllte_aqueduct> to
zoos<http://www.freebase.com/view/en/penguin_pool_london_zoo>(including
broadcast
towers <http://www.freebase.com/view/en/fernsehturm> and
skyscrapers<http://www.freebase.com/view/en/empire_state_building>
).

The main criteria for adding a new type is whether there are any properties
in it that aren't covered anywhere else.  e.g. Floor area property in the
building <http://www.freebase.com/view/architecture/building> type or span
length in the bridge
<http://www.freebase.com/view/transportation/bridge>type.  The tower
type doesn't have any properties, which is a good indicator
that the schema wasn't appropriate.

My first thought was to try and improve the type, but I couldn't think of a
property that wasn't already covered by the structure type and was also
appropriate to the wide range of purposes of towers, from historical
fortress towers <http://www.freebase.com/view/en/orchardton_tower>, to
communication
towers <http://www.freebase.com/view/en/sutro_tower> and everything in
between.  But that's not to say there isn't a property!  If anyone can think
of a property relevant to the tower type, please reply to this discussion.

That said, there are properties appropriate for very specific types of
structures which aren't already covered by existing types, e.g. number of
microwave transmitters on a TV broadcast tower.  If you want, you can create
a new "Communication tower" type if you would like to model this.  See the
help <http://www.freebase.com/view/en/creating_types_and_properties> page on
creating schemas and feel free to submit a question here or on the discussion
boards <http://www.freebase.com/help>.

If the type is deleted, you can still search for tall towers by using a view
to select structures above
250m<http://www.freebase.com/view/user/sprocketonline/default_domain/views/structures_above_250m>
in
height, for example.

Iain (sprocketonline)

On Fri, Jun 5, 2009 at 3:45 AM, <tigre119 at gmail.com> wrote:

> Hi brendan
> i am tim
> I disagree and think 'towers' is an important class of objects to keep.
> In the sense that they are a distinct structure such as the Eiffel tower
> and now there are thousands of mobile phone towers and radio transmission
> towers as well as many tower type sky scrapers in modern cities.
> They are a class of objects in their own right in my view.
> Why do you want to remove the class?
> I am new I thought the more the merrier was the approach.
> Structures is a very broad term, sentences, stories and thoughts have
> structures.
> Buildings is another term, however 'tower' means a type of building or
> construction.
> Is it better to expand the tower class rather than remove it?
>
> My freebase is about marsupials and i want to fine-tune it, in fact it
> needs to contain all available info about marsupials.
> How can I set my freebase so it gathers data automatically and can it index
> it for me itself after collecting data from round the web?
> So that queries automatically gather and present the details about any
> species of marsupials and associated plants and animals, from a range of
> data bases such as Berkley Uni, Smithsonian inst., DBPedia and others.
> the data results are needed as a mash-up result from several sources,
> displayed as a form or a webpage.
>
>
>
>
> On Fri, Jun 5, 2009 at 9:22 AM, brendan <brendan at metaweb.com> wrote:
>
>> At Kirrily and sprocketonline's suggestion, I am going to remove this
>> type.  It has no properties and is too vague a category of structure
>> to merit it's own type.  The structure type covers the important
>> properties. The 12 existing tower's will be de-typed manually (they
>> will still be structure's) Any objections?
>>
>> Brendan
>> _______________________________________________
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>> Data-modeling at freebase.com
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>>
>
>
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