BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//pretalx//talks.osgeo.org//foss4g-2026//talk//CJGGW9
BEGIN:VTIMEZONE
TZID:JST
BEGIN:STANDARD
DTSTART:20000101T000000
RRULE:FREQ=YEARLY;BYMONTH=1
TZNAME:JST
TZOFFSETFROM:+0900
TZOFFSETTO:+0900
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:pretalx-foss4g-2026-CJGGW9@talks.osgeo.org
DTSTART;TZID=JST:20260902T153000
DTEND;TZID=JST:20260902T160000
DESCRIPTION:This presentation introduces an efficient algorithm using "Exte
 nded Spatial ID" and "V-Bit" encoding to solve computational explosions in
  3D overlap detection. By mapping 3D geometries to 1D keys\, our method en
 ables fast\, scalable spatial set operations. This approach will play a ke
 y role in drone 3D airspace management.
DTSTAMP:20260604T115028Z
LOCATION:Ran2
SUMMARY:Efficient Search and Set Operations for Spatial IDs - Suzu Shimokaw
 a\, Tomoro Saito\, 加納祐吾
URL:https://talks.osgeo.org/foss4g-2026/talk/CJGGW9/
END:VEVENT
END:VCALENDAR
