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How Does One Reduce The Number Of Points?

Question asked by MarkHotz on Jul 2, 2019
Latest reply on Jul 12, 2019 by MarkHotz

We are collecting AIS (Automatic Identification System) ship data to create heat maps in Portal for ArcGIS, and for the most part this has been successful.  However, we are also quickly running into an issue of too many points.  We have considered to reset the AIS feed to only collect points ever 60 seconds (or even greater)...right now it's collecting points more frequently than that.  So for about 1 month's worth of collected data we are acquiring between 3.5 and 5.5 million points.  I can get away with publishing that to our Portal, but when publishing more than one month's worth of data it becomes very restrictive and challenging.


So rather than alter the AIS feed to only collect data every minute (or longer), which cannot really be done because our AIS feed is being used by other services, the thinking is to statistically filter the points we have already collected using ArcGIS Pro, and then publish that to Portal.


What would be the best tool for this?  If I want to reduce the number of points from say 4-million to less than 250,000, and still maintain enough data integrity to be able to produce meaningful heat maps, is there an optimal way of doing this?  I'm guessing that this might be something akin to generalization, but with points.


Ideally, we would like to be able to create heat maps on demand using Portal for ArcGIS, and keeping our point total for the year to be under 4 million would be fine.  But is generalizing points possible?