Questions tagged [machine-learning]

Field of study that gives computers the ability to learn without being explicitly programmed

-2
votes
0answers
21 views

WorldView-2 band combination for slum mapping [on hold]

I want to map slum with a WorldView-2 image using a machine learning approach. I was wondering what the best band combination is. I am actually looking into improving my classification - ability to ...
2
votes
0answers
32 views

Top conferences and journals in GIS [closed]

I want to submit a paper for some research that I have done. What are the top conferences and journals in this field?
31
votes
3answers
14k views

How to perform Random Forest land cover classification?

This is a follow-up to a previous post: Machine Learning Algorithms for Land Cover Classification. It seems that the Random Forest (RF) classification method is gaining much momentum in the remote ...
0
votes
2answers
137 views

Is the Random Trees Classifier in ArcMap 10.5 equal to Random Forest?

Is the Random Trees Classifier in ArcMap 10.5 the same as what is named Random Forest in other applications/software? I see that the parameters are the same and the design seems the same, but I need a ...
4
votes
3answers
10k views

Converting lat/lon coordinates to x/y?

For machine learning I need to convert array of coordinates in lon/lat format to simple floats where x=0,y=0 will be a most south/west coordinate and x=1,y=1 most north/east, and x=0.5,y=0.5 will be ...
2
votes
0answers
26 views

Is there an existing solution for pattern recognition?

I've been looking at modeling potential avalanche hazard based on terrain characteristics. I have a vector layer showing historical avalanche paths and have raster layers for elevation, aspect, slope,...
0
votes
0answers
59 views

ArcGIS: Train Support Vector Machine Classifier on a Segmented Raster

I have a raster (.jpg) which I have segmented utilising Segment Mean Shift to smooth out JPEG artefact (aim is to classify it as accurately as possible for conversion into vectors). START .JPG Input ...
4
votes
2answers
3k views

Performing deep learning land cover classification using R?

I am really new to Deep Learning and, unfortunately, I can't find example codes on land cover classification other than this one where the author wrote a script in R for a large dataset. The main ...
4
votes
0answers
324 views

Running OTB Random Forest Classification

I am having trouble processing a satellite image using the RF (Random Forest) classification, that is a machine learning algorithm in the Orfeo Toolbox of QGis 2.18.1. When I run the Tool, the ...
13
votes
3answers
4k views

Distinction between pixel-based and object based classification?

I am struggling to clearly understand the distinction between pixel-based and object-based classification in the remote sensing domain and am hoping someone from this community can provide insight. ...
2
votes
1answer
151 views

Split GeoTIFF into multiple cells with Rasterio

I'd like to create training data for a machine learning pipeline. To do this I want to take a large raster and split it into multiple equal sized cells. I have a very basic loop for generating the ...
0
votes
0answers
11 views

Availability of super-resolution reconstruction (SRR) techniques in GIS software

I'm doing a little research of my own regarding super-resolution reconstruction in general and in the context of GIS software. I'm well aware of pansharpening techniques which became a standard in ...
2
votes
1answer
3k views

Computing unsupervised random forest classification in R?

I want to compute an unsupervised random forest classification out of a raster stack in R. The raster stack represents the same extent in different spectral bands and as a result I want to obtain an ...
4
votes
0answers
97 views

Reproducing Paper Results for Land Cover Mapping of Satellite Imagery?

I am interested in training a neural network to perform pixel-based classification for land cover mapping of satellite data. In order to learn more about this interesting field I am trying to ...
7
votes
2answers
1k views

Extracting building footprints from Sentinel-2 imagery

My attempt to extract building footprints from Sentinel-2 images using machine learning algorithm trained on Sentinel-2 images produced a lot of false positives and there is no sign that the algorithm ...
0
votes
1answer
135 views

How to convert masks generated by rasterio to channel last mask

The problem is about using rasterio to generate mask from GeoJSON file which contains geographic coordinates. The function that I used is from: from rasterio.tools.mask import mask with rasterio....
1
vote
0answers
200 views

SVM classification in R

I have the following dataframe containing training data to be used in a SVM classification. The first column ID must be avoided and the column Class contains the response variable. > training_S ...
5
votes
4answers
4k views

Using supervised vs unsupervised classification in identification of region of interest?

I was introduced to machine learning and remote sensing recently. My task was to classify the satellite images into vegetation and non vegetation. We were introduced to two approaches. Supervised ...
1
vote
0answers
84 views

Choosing statistical method for determining different crop types? [closed]

Task: Determining different crop types from satellite imagery. Tools at hand Training data set which includes RGB, longitude and latitude, NDVI and crop type for each pixel (10m by 10m) Test data ...
36
votes
7answers
8k views

Machine Learning Algorithms for Land Cover Classification

I am interested in learning what software exists for land classification using machine learning algorithms (e.g. k-NN, Random Forest, decision trees, etc.) I am aware of the randomForest package in R ...
0
votes
2answers
241 views

Sentinel 2 Bands + Deep Learning

I am trying to classify 9 different classes of Land use deploying Resnet Architecture. Sentinel images come with 13 bands and in RS we normally combine different bands for different classes for ...
1
vote
0answers
82 views

Crash after performing random forest using enmap box and dzetsaka

i want to perform random forest classification using tools like dzetsaka and enmap box on qgis 3.2 version but after classification completes upto 50 percent qgis crashes what can be the issue
0
votes
1answer
61 views

Getting features from a multi-spectral image [closed]

What are the features that are present in a multi-spectral image which can be used for classification? Also, how do we get these values from the multi-spectral image? I am using Python environment.
1
vote
0answers
49 views

Training Sample Automation

Background, in case it helps: My objective is to (eventually) fully automate the mass digitization of grain silos. To this end, I have set out to first find a way to automatically identify silos in a ...
1
vote
1answer
64 views

How do I export training samples from IDRISI?

I have been tying to implement this paper on an SVM classifier wherein I need to extract training samples from an image and run an SVM classifier on it. The paper says the following: IDRISI Andes ...
1
vote
0answers
274 views

Pattern recognition - machine recognition of plausible shape of a polygon

I have a schoolproject where the task is to locate all possible shapes (of a certain complex polygonic structure) in a layer of several heterogenous polygons. And now the task is to find all the ...
3
votes
1answer
550 views

QGIS OTB Machine Learning algorithms do not create output

I am attempting to calculate and save an image statistics file on a landsat 8 scene. When attempting the virtual raster and separate band files no output is created: 2016-04-01T16:26:13 0 OTB ...
9
votes
1answer
3k views

Is machine learning used much in GIS?

I'm new to GIS. Is machine learning used much in this field, and where? I'm investigating a job opportunity with a mapping company working on traffic awareness. My background is in supervised machine ...
3
votes
0answers
497 views

Using Random Forest for big data?

I used Random Forest regression for my work, but now I have another problem because I have really big data. I am using a VHR and this is much raster information. My script in R is this: rand.zero <...
1
vote
1answer
3k views

Classify satellite Image using Machine Learning [closed]

I am new to the field of Machine Learning and I want to know what all way I can implement machine learning to classify any satellite image.
1
vote
0answers
217 views

Identify Health Centre Location using machine learning ( Optimisation ) [closed]

I am trying to identify locations of where new health centres could be built in the country using Machine Learning (optimisation) and R programming language. I currently have the latitude and ...
2
votes
1answer
395 views

OrfeoToolbox SVM classifier module doesn't produce a model for final Prediction

I'm having a struggle with SVM classification in QGIS OrfeoToolbox. I used to work with RandomForest in R, but now I'm trying to figure out how the SVM algorithm works. I guess there would also be ...
-1
votes
1answer
1k views

How to change Numpy array shape [closed]

I have an array (Numpy of shape (100, 256, 256). How can I change this to (100, 256, 256,3)? I tried doing reshape but it doesn't work, Can anyone help me.
3
votes
1answer
57 views

Predicting the location where new health centres should be built using R,Machine Learning

I have the geolocation of health centres in Ireland mapped in Tableau and I am looking to try to implement a machine learning aspect to this project where new health centre locations are predicted in ...
0
votes
1answer
666 views

How to convert lat long coordinates into categorical value in R?

I have latitude, longitude coordinates as follows latitude longitude 41.775974 -71.329887 42.184913 -71.9179 41.682957373 -71.56037000 I want to use it as one of the features in a ...
1
vote
0answers
395 views

Needed help to launch SVM classification in eCognition

I would like if somebody help me to launch SVM classification in eCognition. Have you met any tutorials? I was searching through ecognition community, but there I find only basic KNN supervised ...
1
vote
0answers
66 views

How analyze reliability of position of new point based on point data [closed]

I am working on filter for biogeographical data. It is based on citizen science principle. People put new point data to database and I want add information about "reliability" or probability (maybe ...
7
votes
1answer
447 views

1-center and k-center problem / maxmin facility problem in Post

is there anybody who has already solved the 1- and k-center problem within PostGIS (optionally with distance metric obtained by pgrouting)? References: 1-center problem in Wikipedia and graph center ...
2
votes
0answers
349 views

Symbolic machine learning with OpenStreetMap data [closed]

I want to apply symbolic machine learning (e.g. case-based reasoning, inductive logic programming) to OSM data. In detail, I want to use OSM Map Features to predict characteristics of residential ...