[Tagging] opening_hours and related tags: hours past 24:00

[Yves]

You can't expect a few of the few mappers interested in opening hours not to map what's on the sign if it's 20:00-05:00. Especially those training AI bots. 
I've never written a parser myself, but is it so hard to accommodate both ways?
Regards,
Yves 

Le 17 octobre 2021 17:28:48 GMT+02:00, Tod Fitch <tod at fitchfamily.org> a écrit :
>
>
>> On Oct 17, 2021, at 7:56 AM, Snusmumriken <snusmumriken.mapper at runbox.com> wrote:
>> 
>> On Sun, 2021-10-17 at 12:25 +0200, Simon Poole wrote:
>>> 
>>> Am 17.10.2021 um 08:13 schrieb Snusmumriken:
>>>> ...
>>>> Could you explain why a mapper should do an abstraction from what
>>>> is
>>>> posted on a sign? Given that a value like Fr-Sa 21:00-05:00 is
>>>> without
>>>> ambiguity.
>>>> 
>>> Because the contents of an opening hours tag are based on a highly
>>> formalized grammar, just adding an extra day with different hours
>>> already requires you to know that grammar. It could be argued that
>>> that
>>> is the case even for your super simple example, for example that
>>> leading
>>> zeros are in principle required in times, that the weekday
>>> identifiers
>>> are two letter English abbreviations and so on. But as I already
>>> pointed
>>> out you are mixing up internal representation with data entry and
>>> display.
>> 
>> Could I ask, do you consider Fr-Sa 21:00-05:00 to be ambiguous? If not,
>> I haven't really heard (or perhaps understood) any argument why one
>> should deviate from what's on a posted sign and arguably stands for the
>> Ground Truth. Sure one could have an internal representation that's
>> different from the Ground Truth but I think there has to be a really
>> strong rational for doing that. And so far I haven't heard any.
>> 
>You quoted the strong rational: The value of the opening hours tag has a formal grammar. Formal grammar is important for machine interpretation of the value.
>
>
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