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Questions tagged [training]

for questions related to training materials and courses for GIS. Do not use for semi-automatic classification routines, or training of artificial neural networks.

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How to set the block size parameter for prepare a high point-density PointCloud dataset for training a model with ArcGIS Pro

I have a mobile point cloud dataset with following information: point density: all returns 126.91 last only 117.75 (per square units) Point spacing: all returns 0.09 last only 0.8 (in units) For ...
Anahita Kp's user avatar
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0 answers
59 views

Training Samples Manager in ArcGIS Pro takes each polygon as a class

I am trying to create segmentation on satellite image I have. I have something like 1000 polygons to use for training and I'm using the Classification Wizard. I have uploaded the sample polygons, but ...
ReutKeller's user avatar
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0 answers
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How to differentiate between bareland and crop land while supervised classification?

I am performing supervised classification in Sentinel 2A 10m resolution image using Arcgis 10.5. The area for which I am doing classification mostly contains built up areas, very few bareland and I ...
Monika Jirel's user avatar
0 votes
1 answer
64 views

Issue with QGIS 3.28 Traing Manual Exercise 3.3 "Rename Current..."

I am using QGIS 3.28. I am working on the training manual exercises, using the provided data. I am on exercise 3.3.3 'Follow along: Ration Classification' (see image). i cannot find "Rename ...
gertrudious's user avatar
1 vote
1 answer
172 views

Assign raster's pixel values to a new column

I want to use a landcover raster for further training in GEE. This raster has different pixel values for different landcover classes. However, I want to assign those values in a new column to use this ...
Samar Tarek's user avatar
1 vote
1 answer
195 views

Merging training data from two different shapefiles

Using GEE, I am trying to do a crop-type classification using Random Forest. My training data are two shapefiles I uploaded to GEE and made a FeatureCollection from their geometries. Here is the ...
Samar Tarek's user avatar
0 votes
1 answer
638 views

Plotting spectral signature of training data from a supervised classification in GEE

I need to plot the spectral signature of training data in each of the 8 classes of the supervised classification script I wrote in GEE. The variable 'training_points' is made of sample points I ...
Paris's user avatar
  • 591
1 vote
1 answer
1k views

Adding a column to a Google Earth Engine feature collection

I am trying to generate a ground truth feature collection to do some machine learning. I have a shapefile that contains one class of my ground truth. and I am manually creating a second feature ...
Charbel El Khoury's user avatar
1 vote
1 answer
854 views

Training Random Forest using more than 5,000 samples

I'm estimating forest biomass using Random Forest regression at a large scale. I want to train the Random Forest model using as many samples as possible (~100,000 samples), but it seems the Google ...
Dong's user avatar
  • 13
0 votes
1 answer
456 views

Troubleshooting Feature (1) has invalid geometry

I am using Training manual 6.2.9. I've stumbled upon the following error referring to invalid geometry in Feature 1. What is feature 1 and how do I troubleshoot this error? Loading resulting layers ...
McGrawson's user avatar
1 vote
1 answer
499 views

Different number of observations when using SampleRegions

I have a code in GEE which creates two images from sentinel-1 (SAR) and from sentinel-2 (NDVI) , creates from them paired image and then creates scatter plot from the two bands in the image. In order ...
ReutKeller's user avatar
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2 votes
1 answer
643 views

QGIS Training Manual Vector Menu

I just (December 12, 2018) downloaded the training manual and data. I'm trying to get started but I cant find the first part to download the OpenStreetMap part. "In the Vector menu dropdown, select ...
Bruce Bowers's user avatar
1 vote
0 answers
214 views

Using Maximum Likelihood Classification and raster border in ArcGIS Desktop?

I have tried multiple times to see if this was an issue with my supervised classification, but I don't think it is. I created my training samples and created a signature file. Per my course, I need to ...
RRodgers's user avatar
1 vote
1 answer
37 views

QGIS training manual 6.1.4

I'm following the manual and I've successfully digitised the fields, now I must do the paths. I can trace the paths but instead of it being a line, it creates a shape/area. What am I doing wrong? I'...
McGraw's user avatar
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26 votes
5 answers
7k views

Is there a professional certification available for QGIS users?

I have heard some rumors about a QGIS professional certification program. I have found some documentation on it at https://hub.qgis.org/wiki/17/Certification but have been unable to find any other ...
Kingfisher's user avatar
  • 2,314
1 vote
2 answers
305 views

Where is conf.py file of QGIS Training Manual?

The QGIS Training Manual, at section 1.2.3, says: "Having created your localised dataset, the final step is to replace the tokens in the conf.py file so that the appropriate names will appear in your ...
Catlike's user avatar
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1 vote
0 answers
566 views

Training Manual 2.8 and exercise data differences

I am a new user and trying to teach myself about QGIS using the 2.8 Training Manual and the training_manual_exercise_data downloaded from QGIS. I am using the PDF of the manual, which seems to be ...
Martin Sullivan's user avatar
3 votes
1 answer
3k views

Seeking MOOCs (online training courses) for remote sensing?

I'm looking for a MOOC (Massive Open Online Course) for remote sensing. Does anyone know if there is currently running or if is there any change to begin in the future any MOOC for remote sensing?
4 votes
3 answers
1k views

LiDAR online training [closed]

Beside ESRI's LIDAR online training, I'd like to work on some hands-on training that I can learn about LIDAR. Are there any good LiDAR out there that I can get some training with the datasets?
PROBERT's user avatar
  • 4,139
1 vote
3 answers
705 views

Why do I get an error message at QGIS training manual 3.3?

I have a problem following the QGIS training manual lesson 3.3 (Ratio Classification). You have to add a column to an SQlite layer. The new column is AREA. I followed the instructions and added it as ...
zaraz's user avatar
  • 11
14 votes
5 answers
834 views

How to start a local GIS Users Group

My immediate geographic area is lacking an organized local GIS Users Group. I belong to a group that meets a couple times a year, but its about 1.5 hour drive. I'm thinking about starting up a Users ...
Craig's user avatar
  • 4,580
4 votes
2 answers
356 views

GIS and public health?

I am starting to research on the topic related to use of GIS in public health. I have started with the Wikipedia article. I would like to apart from epidemic spread of disease, what are the other ...
Zero's user avatar
  • 191
6 votes
0 answers
304 views

Which training courses in Geodetics can you recommend?

Can anyone recommend any training courses in geodesy which would cover the following objectives: Case studies on coordinate issues. Overview of geodetic datums, coordinate reference systems and ...
Rob's user avatar
  • 851
14 votes
5 answers
2k views

Which topics are essential for QGIS beginners?

What topics do you think are essential in an introduction for QGIS? The target audience is those with zero or rudimentary knowledge in mapping and geospatial software.
3 votes
1 answer
190 views

Where are Esri LasDatasetBuilder examples?

Does anyone know of any working examples leveraging the new ESRI ArcGIS 10.1 Lidar classes i.e LasDataSet or LasBuilder class? I've looked around on http://resources.arcgis.com/en/help/arcobjects-net/...
ist_lion's user avatar
  • 511
7 votes
4 answers
2k views

Training for GIS professional working in Telecom? [closed]

This question is not about any code or bugs. This is about GIS profession. I am GIS professional working with MapInfo, OpenLayers, SQL Server, Oracle, and System integration. I learned everything ...
kinkajou's user avatar
  • 4,426
2 votes
2 answers
118 views

Do you know a fairly up-to-date ArcExplorer tutorial video for non-gis staff?

Does anyone know of a fairly up-to-date ArcExplorer tutorial video to show to our non GIS staff who will be using ArcExplorer?
Justin's user avatar
  • 3,398
2 votes
0 answers
145 views

Training courses in geostatistics and spatial modelling [duplicate]

Possible Duplicate: What are sources for current geo-statistical analysis classes/events: open or proprietary Does anyone know of or have been on any training courses that specifically train in ...
Rob's user avatar
  • 851
15 votes
10 answers
2k views

Seeking Open Source Training Materials?

The question Are Online Certs worth their weight? made me wonder if there are any open source training materials for GIS. By this I don't mean training specifically for open source software - of ...
17 votes
6 answers
2k views

Seeking current geostatistical analysis classes/events

I am interested in geostatistics. I am not very programmatically inclined but have been following several lists with this theme. One being the R filter on Stack Exchange where I get occasional digest ...