README.md

pedroEngine

Here I have developed some Java code for my experiments and projects of various natures. Hope it might be useful for someone.

Contents By Package

algebra

• Linear algebra lib.

algorithms

• QuickSort implementation (saves the permutation).

apps

1. EigenSimulation

   • Simulation and visualization of various algorithms that solve the eigen vector/value problem.

2. ImplicitSurface

   • Visualization of some implicit surfaces

3. DiffusionDistanceTest

   • Visualization and simulation of the discrete heat equation on a graph.

4. SpectralClusterTest

   • Visualization of the segmentation of random geometric graphs using spectral clustering algorithms.

5. TextCurves

   • Visualization of text using the Lowbow curves

6. Other minor stuff

graph

1. Implementation of graph data structure
2. Implementation of the Knn-graph construction from points in euclidean space
3. Spectral clustering algorithm implementation
4. Graph laplacian calculation
5. Random walk on graph simulation
6. Graph topological ordering computation

inputOutput

• IO utils

nlp

• Natural language processing tools for the implementation of the paper

numeric

1. Camera3D
   • 3D Spherical camera implementation
2. Algorithms for the computation eigen vector/values of symmetric matrices
3. SVD - Singular value decomposition calculation
4. PCA - Principal components analysis implementation
5. Matrix Exponential implementation
6. Math utils
7. Kmeans implementation
8. Quadratic forms minimizer solver

other

• Some random stuff, the MyRobot class makes your mouse simulate a orbit of a planet :)
  • xhost + && sudo docker run --rm -v /tmp/.X11-unix:/tmp/.X11-unix:ro -e DISPLAY=$DISPLAY -it pedroth/java-apps bash -c "java -cp pedroEngine/pedroEngine.jar other.MyRobot"

realFunction

• An update from the function package of the Learning repo here

twoDimEngine

• Two dim engine in java using bounding box hierarchy, for fast spacial queries.

table

• Sparse and dense multi-dimensional arrays