it's grim up north
DESCRIPTION
or How can we map vague vernacular geographies? presentation at barcamp manchester uk march 2008 by tim waters http://thinkwhere.wordpress.comTRANSCRIPT
IT'S GRIM UP NORTH
That is a powerful statement. It MEANS something. It's wrong but it's how people think about geographical areas.
How can wecapture, record, analyse and inform using such
vernacular vague geographies
keywords: vernacular qualitative spatial vague fuzzy maps
Vernacular Geographyup northdown townthe shops in the centredog shit alleyHyde Park is a high crime areathe bad side of townthe posh neighbourhoods
Are used much much much more than the coordinates and scientifically defined variables beloved of most professional analysts, websites and web maps.
the use of descriptors like ‘Downtown’ or ‘the grim area down bythe station’ allows us to communicate geographical references that often includeinformation on associated environmental, socio-economic, and architectural data
These vernacular geographical terms are not simplyindicative – they often represent psychogeographical areas in which we constrain ouractivities, and they convey to members of our immediate socio-linguistic community thatthis constraint should be added to their shared knowledge and acted upon
Neogeography
Volunteered Geographic Information
Paleogeographyby professionals. Official.lines, polygons, top down, powerful, heavy on the sciencedefined. discrete
Neogeography is about people using and creating theirown maps, on their own terms andby combining elements of an existing toolset
Ordnance.S. - vernacular placenamesOpenStreetMap loc_name and old_name“dog shit alley” “the Giant Bench”
geocodr.netFinds places / events from people's Flickr photos. The text peopleuse when describing their snapshots.
vernacular areasbit confusing this bit....
Indifference Continuousness
Poor precision
Multivariate classification
Averaging
Definitional disagreement
1. Vernacular areas, often fall into all of these.Ask people to outline and justify areas where they think crime levels are high, most people will draw on a slew of continuous and discrete variables at differing scales of detail, historical experiences, urban morphology and mythology, as well as introducing linguistic vagueness
2. Internal variationsHigh crime areas, for example, often have zones of greater or lesser danger. Overlaid on this will be a variation in the familiarity with areas or confidence with which people assign an area to a term
SoritesUnbounded areasdont caremantle
transition between town centre and not
there is a line, but we dont know how to define, measure it
soils, rough area, binned into classes
seaside, hill, boundary is average
high crime for a norweigan and a mancunian
most people think LA is a high crime area’ but have no idea how ‘LA’ or‘high crime’ are being used.
So.
Pain to capture using traditional discrete mapping tools, and even if you did, itwouldn't make much sense within those models. Geo data is good because computers can do stuff with it, but people dont think in geo terms
meet people halfway, somehow?
Treating areas as having diffuse boundaries, internal variations
Why can't people think like my computer??!!
Fuzzy sets / logic
Statistical and probabilistic approaches
Mereotopological calculi
Supervaluation semantics
a coordinate might be 80% ‘High Crime’, for example. The use is clearest when there are contrasting classes, even if these are implicit: 80% ‘High Crime’ also suggests a 20%membership of a ‘Low Crime’ class. Fuzzy Logic ‘if CRIME is HIGH, INVEST = MORE’.
perceived areas as surfacesacross which a membership level varies we
Mereological Algebras, those that deal with parts andwholes, have developed to cope with three-part logics – that is, logical problems dealing with true, false and indeterminate questionsEgg Model. Yoke = true, White = indeterminate, fryingpan = falsevector. spatial relationships, does one overlap, within etc
multiple people hold multiple spatial and aspatial definitions.multiple definitions of an area canbe overlapped to construct a mereotopological entity in which the yolk is areaseveryone agrees are ‘Downtown’, the white is where there is some agreement, andthe pan areas where everyone agrees no definition holds
methods already out thereor, in academia, perhaps
Problems
Fitness for purpose
Precision and accuracy
both with reference to an individual (can data collected from aperson for one purpose be used for another?) and the group (are two people’s datacomparable?)define the question, increase the specificity of the problemsi.e. “where are the areas you mean when you say “you are going to the shops” ?vs “define the areas where you shop, and rate them according to how often you go there in a week.”
the instrument is the mind, can we gauge the accuracy and confidence.Qualify depending on user-confidence in their own judgement or familiarity with the area?
AimsAn intuitive system to record, capture analyse and inform using vague vernacular geographies
BenefitsDatasets that are rich in information. Comparable with empirical data.Personally & group comparable.Applied to anything where there is folk vague geographies
e.g. Best shopping areas in LeedsSmelliest streetsbest beachespercieved highest crime areasfavourite part of the DalesWhich areas around the town are more important for you, before we create a bypass.Where are the terrorists? ask an American, then ask an Irishman.
Points to consider
Ease of use – meet people half way
Capture vague borders
Intra and inter variations
Linquistic component?
Comparison
Outputs
Tell Tim to stop here!
Then discussion
then he will tell you about his
methodology
tagger
So far, some applications:
Where do you think has more crime?
Where are you most familiar with?
Where is wilderness in the UK?
on Indian Reservation:Which areas are more important for you
when thinking about hunting
Which places are more important for sensitive cultural practices