[Data-modeling] /location/location/area not unique

[Praveen Paritosh]

Claim: Numeric properties should always be unique. 

Below is a list of all floats and ints in Freebase that can have multiple values. It seems that in every case, they should be modeled as CVTs, for example, if a star has multiple masses, they are refering to diffferent estimates or a book has multiple paginations with different numbered pages, they are refering to editions or prints of books. How often we need this modeling simplification? The claim is intentionally exaggerated, maybe there are valid cases of multiple numeric values -- examples? 


/type/float:

['/astronomy/star/mass_m', '/astronomy/star/radius', '/user/ptomblin/default_domain/aerodrome/pattern_altitude_meters', '/user/benstiglitz/default_domain/portable_media_player/capacity', '/user/brendan/musician_products/speaker_cabinet/ohms', '/astronomy/comet/epoch', '/user/spatialed/bird_codes/sampling_design/area', '/user/spatialed/bird_codes/sampling_design/width', '/user/spatialed/bird_codes/sampling_design/length', '/user/spatialed/bird_codes/sampling_design/radius', '/user/spatialed/bird_codes/sampling_design/survey_time_per_visit', '/user/mrmasterbastard/default_domain/electric_car/full_charge_time', '/user/akatenev/weapons/gun/weight', '/user/metapsyche/exoplanetology/exoplanet/mass_jupiter', '/astronomy/orbital_relationship/inclination', '/guid/9202a8c04000641f8000000008c17404', '/user/kesava/indian_railways_base/indian_railways_train/average_speed', '/user/kesava/indian_railways_base/indian_railways_train/distance_covered', '/user/mikeshwe/cyclocross_bikes/crankset/crank_arm_length', '/user/jdouglas/view/location/area', '/user/tom000/default_domain/portable_media_player/memory_size']

/type/int:

['/book/pagination/numbered_pages', '/user/xavier/default_domain/revision/number', '/biology/genomic_locus/end_base', '/biology/genomic_locus/start_base', '/government/us_president/presidency_number', '/user/spatialed/bird_codes/sampling_design/number_of_breeding_visits', '/user/spatialed/bird_codes/sampling_design/number_of_observers_per_site', '/user/mindstream/default_domain/rating/ratingcount', '/user/indexxml/default_domain/aaa/try', '/user/drakecaiman/default_domain/computer_game_release/number_of_discs', '/user/barak/social_dance/dance_style/counts', '/user/kesava/indian_railways_base/indian_railways_train/travel_time_in_mins', '/user/mikeshwe/cyclocross_bikes/crankset/chainring_teeth', '/education/school_district/leaid', '/user/biocode/computer_hardware_components/case/internal_5_25_bay', '/user/biocode/computer_hardware_components/case/external_5_25_bay', '/user/biocode/computer_hardware_components/case/internal_3_5_bay', '/user/biocode/computer_hardware_components/case/external_3_5_bay', '/user/mr_kav/default_domain/customer/num', '/user/wf/shape_note_singing/tunebook_tune/page_number']




----- Original Message -----
From: "Alexander Marks" <al at metaweb.com>
To: "Freebase data modeling mailing list" <data-modeling at freebase.com>
Sent: Friday, September 19, 2008 12:14:48 PM (GMT-0800) America/Los_Angeles
Subject: Re: [Data-modeling] /location/location/area not unique

Both of those things require a migration to a CVT, don't they?

----- Original Message -----
From: "Jeff Prucher" <jeff at metaweb.com>
To: "Freebase data modeling mailing list" <data-modeling at freebase.com>
Sent: Friday, September 19, 2008 9:42:07 AM (GMT-0800) America/Los_Angeles
Subject: Re: [Data-modeling] /location/location/area not unique

Hmmm.  I can think of two reasons for it not to be unique, one of which
would require a change in the model. The first is that different sources
will give you different values. The second is everybody's favorite anwser to
any sort of modelling question: It could be date-mediated! 

Jeff

> -----Original Message-----
> From: data-modeling-bounces at freebase.com 
> [mailto:data-modeling-bounces at freebase.com] On Behalf Of 
> Alexander Marks
> Sent: Thursday, September 18, 2008 5:24 PM
> To: Freebase data modeling mailing list
> Subject: [Data-modeling] /location/location/area not unique
> 
> Shouldn't /location/location/area be unique?
> 
> Al
> 
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