100% accuracy during validation
Geographic Information SystemsCan validation accuracy be 100%? The answer is “NO”. A high accuracy measured on the training set is the result of Overfitting. So, what does this overfitting means? Overfitting occurs when our machine learning model tries to cover all the data points or more than the required data points present in the given dataset. Why
Converting GCS NAD 1983 to CA state plane
Geographic Information SystemsWhat zone is NAD83 California? In NAD 83, Los Angeles County is consolidated into Zone 5. How many SPCS zones are in California based on NAD 83 SPCS 83 )? 6 zones The California SPCS has 6 zones in NAD83 and 7 zones in NAD27, with Los Angeles County as the unique Zone 7 in
Extracting tree cover values from Hansen to feature collection using Google Earth Engine?
Geographic Information SystemsHow do I get NDVI data from Google Earth Engine? Calculate NDVI from Recent Sentinel Satellite Imagery in Google Earth Engine Summary. Get started in Earth Engine (new users) Import Sentinel-2 Imagery within your study area. Calculate NDVI from the Sentinel-2 imagery. Select the Most Recent Image. Add the Most Recent NDVI Image to the
Finding identical polygons based on some attribute and then calculating field based on other attributes using ArcGIS Pro
Geographic Information SystemsHow do you calculate geometry attributes in ArcGIS pro? Access the Calculate Geometry Attributes tool by opening the attribute table and right-clicking the field to bring up the context menu. There is an option to ‘Calculate Geometry’. This tool can also be accessed directly from the geoprocessing pane from within the Data Management toolbox. How
Atmospheric correction using ENVI Flaash
Geographic Information SystemsWhat is Flaash atmospheric correction? FLAASH is a first-principles atmospheric correction tool that corrects wavelengths in the visible through near-infrared and shortwave infrared regions, up to 3 µm. (For thermal regions, use the Toolbox option Radiometric Correction > Thermal Atmospheric Correction.) What are the methods for atmospheric correction? Dark object subtraction, radiative transfer models, and
Mapping and update data in database
Geographic Information SystemsWhat is data mapping in database? Data mapping is the process of connecting a data field from one source to a data field in another source. This reduces the potential for errors, helps standardize your data and makes it easier to understand your data. What is ETL data mapping? What is ETL mapping? ETL mapping
Insert query result to table (PostgreSQL)
Geographic Information SystemsHow to insert a query result into a table PostgreSQL? Follow the below-given step-by-step guidelines to insert data into a specific table in Postgres: Step 1: Select a Table Using \dt Command. Step 2: Describe the Selected Table Using \d Command. Step 3: Run the INSERT Query. Step 4: Verify the Inserted Data Using Select
How to extract information from a tiff file
Geographic Information SystemsHow to export TIFF metadata Open this GroupDocs. … Click inside the file drop area to upload a TIFF file or drag & drop a TIFF file. Your file will be rendered for you in our metadata editor. Click on “Export Properties” button to export metadata to Excel format and download the XLSX file. How
Metadata Updating in QGIS?
Geographic Information SystemsHow do I edit metadata in Qgis? Quote from video: So you have to get them loaded as a layer. And then you can right click and go properties now this tool remembered where i was last time usually when you come in you're on information. What is metadata in Qgis? The Metadata tab contains
AutoCAD Map import MapInfo TAB file georeferencing info
Geographic Information SystemsHow do I convert a MapInfo file to AutoCAD? To Import MapInfo TAB Files Click Insert tab Import panel Map Import . In the Import Location dialog box, under Files Of Type, select MapInfo TAB. Select the file or folder to import. For formats with additional options, in the Import dialog box, click Driver Options.