Periods missing spatial coverage (link to gazetteer) #34
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These will all be entries (from ARIADNE, from LoC, and elsewhere) that use
textual descriptions that we couldn't match to a gazetteer extent using the
user interface for input (e.g. "Sicily", "Rome", "Italy less Sicily,
Sardinia, Tuscany, Umbria", "Crete"). Some of these ("Sicily", "Crete",
etc.) could, I imagine, be matched up to a Wikidata entry without
difficulty. Others are a little tricker -- when LoC
says "Rome--History--Titus, 79-81", do they mean a) the city of Rome now,
b) the city of Rome in antiquity, or c) the extent of the Roman Empire in
AD 79-81? I think it's probably c), but we don't have a historical
gazetteer incorporated yet that can give us the Roman Empire as of AD 81 as
a shapefile. Others are modern but will be more complicated, since "Italy
less Sicily, Sardinia, Tuscany, Umbria" will presumably involve
hand-selecting all Italian regions except those four (I wonder if we could
have a pulldown with expanding arrows and checkboxes, so you could expand
Italy, check all, and then clear out those four...).
…On Thu, Jan 26, 2017 at 2:06 PM, Ryan Shaw ***@***.***> wrote:
The few I checked were from all ARIADNE. These appear to have (textual)
spatial coverage descriptions, but no associated gazetteer entities. Full
list attached.
Missing spatial coverage.xlsx
<https://github.com/periodo/periodo-data/files/733461/Missing.spatial.coverage.xlsx>
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rybesh
changed the title
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on it |
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Keep in mind that we've been augmenting the gazetteers on an ad-hoc basis, so if you come across spatial coverage descriptions with no plausible corresponding gazetteer entries, let me know so I can look for Wikidata records to add to our gazetteers. |
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Ah, I didn’t realize there was more out there. French and Greek cities (eg
Paris and Athens) and French, Greek, and Romanian regions (eg Burgundy,
Transylvania, and the Peloponnese) have jumped it at me so far. As I work
through the LCSH, I’m going to hit a whole lot of major European cities in
the WWII “bombardment” periods.
…On Sat, Jul 11, 2020 at 8:28 AM Ryan Shaw ***@***.***> wrote:
Keep in mind that we've been augmenting the gazetteers on an ad-hoc basis,
so if you come across spatial coverage descriptions with no plausible
corresponding gazetteer entries, let me know so I can look for Wikidata
records to add to our gazetteers.
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Italian cities are missing too, but less consistently (there's Bologna but not Siena, for example). |
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We could use some historical German regions, too: the Palatinate, Prussia, etc. |
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Canadian provinces. |
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I'm looking at my own Chersonesos periodization, which lacks gazetteer links because we don't have ancient cities, or Sevastopol, or Crimea. But Wikidata does have Chersonesos: https://www.wikidata.org/wiki/Q638445. And it occurs to me, as a shortcut: what if we did a lookup for Wikidata entries that had Pleiades IDs? We'd get a whole bunch of ancient and archaeological sites that way. |
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For anything like Canadian provinces or French regions, or Pleiades / Wikidata, we can pretty easily do it. Things like "Italian cities" are tougher without some way of deciding which cities. All Italian cities is too many. We could do the biggest Italian cities, but those aren't necessarily the ones with periods defined in relation to them. For things like that, I think we should continue to add them as needed. But if you can keep going through and adding spatial coverage where we do have an appropriate place, then I can fairly easily look at the remaining ones and figure out how to add them (the current gazetteers are the result of looking at what was missing from the DBpedia set). |
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Here's a spreadsheet with the complete list of periods currently missing gazetteer links: https://docs.google.com/spreadsheets/d/1qo522zQ_TBhkkqtvrjNuJ_C5jS4cFydX16lk23LReDQ/edit?usp=sharing |
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Do we have any sense of how to deal with idiosyncratic exclusive expressions of spatial coverage, like "Italy not including Sicily"? Do we attach the more inclusive "Italy", or do we not link? I guess the question is whether we prefer false positives or false negatives. |
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Yes, I wondered about that, too. Abruzzo (Q1284) My impression from Ryan's email sent to me on Friday (11 June) is that you only need a rough approximate of the geographical scope since there is "no such thing as "'pure' spatial entities vs. 'pure periods.'" Whichever approach (link to Italy (Q38) instead, or not to link) and the level of granularity you want me to implement is up to you and Ryan to decide. Let me know what you think. |
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I updated the spreadsheet yesterday. Let me know if I need to make further changes. Thanks! |
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@ylan1, I meant to weigh in on this -- for spatial coverage statements that explicitly don't include a particular region, I think it's preferable to follow the approach here and list all the regions that are covered, leaving out the ones that aren't (the same thing applies to Greece not including Crete, which I think we also have). Ryan is correct that rough approximations are fine, but the problem we get into in this situation is that the project in question also provided separate definitions for Sicily, and if we identify "Italy but not Sicily" as Q38 (Italy including Sicily) and Sicily as Sicily, we get two sets of periods from the same project for Sicily, which might create confusion down the road. So if a project is specific about regional distinctions, I think we should try to reflect those in the granularity of the gazetteer entities we include. |
The few I checked were from all ARIADNE. These appear to have (textual) spatial coverage descriptions, but no associated gazetteer entities. Full list attached.
Missing spatial coverage.xlsx
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