Identifying and Categorizing POIs Henning Schulzrinne Columbia University.

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Presentation transcript:

Identifying and Categorizing POIs Henning Schulzrinne Columbia University

Use cases in draft Where is a 4 star Italian restaurant near me that is still open? Where can I find a new battery for my phone? What movies are playing now near me? Where is the cheapest available parking near the theater? What are the specials at nearby restaurants? What kind of businesses are in this building?

Not to be solved here Properties of service/POI vs. category e.g., restaurant accept AmEx, Zagat gave it a rating of 20 Distinction can be somewhat arbitrary is Italian cuisine an attribute of a restaurant or a classification? Basic notion: non-interchangeable services = category gas station vs. restaurant synagogue vs. Christian church Pragmatic distinctions supporting consumer use, not census statistics

Categorization possibilities: NAICS The North American Industry Classification System (NAICS) is the standard used by Federal statistical agencies in classifying business establishments for the purpose of collecting, analyzing, and publishing statistical data related to the U.S. business economy. Example: restaurant

NAICS restaurant of limited interest to most AR applications of limited interest to most AR applications

NAICS – what about… ATMs? bus stops? public schools? monuments? public restrooms? police station? library? WiFi hotspot?

Other alternatives Free-form text hard to translate into other languages same service, many names ATM, automated teller machine, cash machine restaurant, diner, café, coffee shop, … library, public library, university library service hierarchy restaurant, French vs. French restaurant Open Street Map (OSM) Map overlay labels topographical features, not services GPS POI labels dont appear to be standardized, but good starting point Yellow Pages directory labels no obvious standard, but good guideline

8 Service URN Idea: Identifiers to denote emergency calls and other generic (communication) services Described in IETF ECRIT RFC 5031 Emergency service identifiers: sos General emergency services sos.animal-control Animal control sos.fire Fire service sos.gas Gas leaks and gas emergencies sos.marineMaritime search and rescue sos.mountainMountain rescue sos.physicianPhysician referral service sos.poisonPoison control center sos.policePolice, law enforcement

Extension to non-emergency services On-going work: Extensible hierarchy designed for location-based services urn:service:business urn:service:communication urn:service:cultural urn:service:education urn:service:entertainment urn:service:financial urn:service:food urn:service:fuel urn:service:government urn:service:medical urn:service:religious urn:service:retail urn:service:transportation

transportation.airport transportation.bycicle-rental transportation.bus-stop transportation.car-rental transportation.mechanic transportation.parking transportation.port transportation.subway transportation.taxi-stand transportation.train-station

Issues & to-dos Is there some existing classification we can borrow? Registration through IANA or other body (delegated)? Maintenance? small editorial group? mailing list? similar to (Olson) time zone database