Hi there 👋. Welcome to my GitHub profile!
I'm Mehran & I love Free and Open Source Software for Geospatial.
Name: Mehran Ghandehari
Type: User
Company: LexisNexis Risk Solutions
Bio: Senior Geospatial Data Scientist | Ph.D. | GIScience
Twitter: mehran_maps
Location: Williamsburg, VA
My C++ codes for the programming course (Fall 2008)
Long list of geospatial tools and resources
List of satellite imagery datasets with annotations for computer vision and deep learning
Slides and lecture notes on how to process large spatial data with R
Course Project - Artificial Inteligence
Course projects in my bachelor (Civil Surveying)
Different Convex Hull Algorithms (Extreme Edge, Graham Scan, Incremental, and Non-extreme Points)
My deep learning projects
Point in triangle search using the Delaunay Triangulation data structure
Designing a Land Administration System with Blockchain Elements using Open Source Geospatial Software
Cheat sheet for GDAL/OGR command-line tools
A C# code for GPS Vehicle Tracking (LBS class project)
House Price Prediction using Random Forest
The terrain surface plays a critical role in modeling geomorphic, hydrologic, atmospheric, and ecological processes. Understanding the terrain surface can guide realistic characterization of these processes. Projection of terrain features into a planar surface leads to some distortion in the geometry of terrain elements. Generally, for a Digital Elevation Model (DEM), distance, perimeter and area are underestimated in comparison to actual measurements, due to within pixel variations in slope and curvature. This matter is ignored in most terrain-based GIS analysis. This research employs realistic surface geometries of terrain for a more accurate and precise mapping of streams from DEMs. The flow accumulation model, which employs planar area to delineate the upstream drainage area of each pixel, is the predominant approach for extracting streams from DEM. One key weakness of this approach is that the two-dimensional method used for calculating area does not account for the slope and curvature of the terrain and precious information is lost. This research presents one possible strategy for the incorporation of surface area into a flow accumulation matrix. This approach substitutes calculation of upstream surface area instead of planar area.
Deterministic and Stochastic interpolation methods implemented in Matlab
Book about interpretable machine learning
A resource for learning about ML, DL, PyTorch and TensorFlow. Feedback always appreciated :)
Optimization Algorithms:
Models and examples built with TensorFlow
A Voronoi-base Algorithm for Medial Axis Extraction (Case Study: Watershed Delineation from River Networks)
My Hugo Website
Load STAC items into xarray Datasets.
The code for my old website
My PhD Dissertation
Point in Polygon Search
An Introduction to the Python Geospatial Open Sources
Quantitative Analysis in R
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.