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UID:pretalx-foss4g-2022-773JU8@talks.staging.osgeo.org
DTSTART;TZID=CET:20220826T120000
DTEND;TZID=CET:20220826T123000
DESCRIPTION:Connectivity of roads in a map is essential for many use cases 
 including navigation. We present a graph-based solution to the road confla
 tion problem which takes into account the connectivity of the road network
 . First\, we generate a road network graph in both sources based on bifurc
 ation points. Second\, we carry out node and edge matching between the gra
 phs where we follow shortest distance as a matching criterion. This is fol
 lowed by the merging stage where graph edges with matching end nodes get c
 onflated. Newly added roads are connected with the graph based on node and
  edge matching. We carry out experiments on conflating open source footway
  datasets from multiple cities with the OSM. The resulting conflated map c
 ontains up to 16x map feature improvements per city with geometrically acc
 urate and smooth results around road junctions. Future work involves using
  different graph matching criteria to improve on the conflated output.
DTSTAMP:20260404T100344Z
LOCATION:Modulo 0
SUMMARY:A Graph-Based Road Conflation Method Preserving Connectivity - Esra
  Cansizoglu\, Yunzhi Lin
URL:https://talks.staging.osgeo.org/foss4g-2022/talk/773JU8/
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UID:pretalx-foss4g-2022-DMSDM9@talks.staging.osgeo.org
DTSTART;TZID=CET:20220826T152000
DTEND;TZID=CET:20220826T152500
DESCRIPTION:A team of experienced mappers and language experts at Meta has 
 reviewed a dataset of major map features from OpenStreetMap(OSM)\, and use
 d the curated results on one of their validation processes to check for qu
 ality issues of the Daylight and OSM maps. The dataset of the curated resu
 lts is considered as a reference library of major map features with their 
 key information. During the validation process\, this library is used to c
 ompare against Daylight and OSM data to look for suspicious changes on fea
 tures included in the library.  With such reference library\, the Meta Bas
 emap Team is able to keep a stable quality on major map features in an eff
 icient manner. To ensure the data in this library is up-to-date and compre
 hensive\, systematic approaches to continuously improve the library are al
 so developed.  In our talk\, we will share more details about this curated
  library and processes\, and how we maintain the freshness of the library.
DTSTAMP:20260404T100344Z
LOCATION:Modulo 0
SUMMARY:Curated Major Map Features Library - Yunzhi Lin
URL:https://talks.staging.osgeo.org/foss4g-2022/talk/DMSDM9/
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