Dominik Dahlem (dahlem)

dahlem

Geek Repo

Company:Optum

Location:Dublin, Ireland

Home Page:https://www.linkedin.com/in/ddahlem

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Dominik Dahlem's repositories

spectralClustering

This project is an implementation of spectral clustering using the unnormalised (and sparse) graph Laplacian (in upper triangular form) solving the generalised eigenvalue problem using arpack++.

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cusum

An Introduction into Anomaly Detection using the Cumulative Sum (CUSUM) Algorithm

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lz-prediction

Lempel-Ziv prediction utilises a dictionary originating from parsing sequences using Lempel-Ziv encoding in order to compute the log-loss over test sequences.

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rl-aqs

Implementation of a high-performance queuing simulator for adaptive task assignment problems using reinforcement learning control strategies (based on my PhD work).

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bayesGP

This project implements a Bayesian Gaussian Process regression model which is fit using an adaptive Metropolis within Gibbs algorithm.

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linearSolv

Project that implements a number of solvers using GSL and BLAS, including Cholesky decomposition with Cholesky-Crout reduction, conjugate gradient, Gaussian elimination, Jacobi iteration, LU decomposition with Crout reduction, Jacobi-preconditioned conjugate gradient, QR decomposition, Seidel iteration, steepest descent, and forward/backward substitution. This project was done as part of some course work of the High-Performance Computing M.Sc. at Trinity College Dublin.

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ncd

This project implements a compression-based distance function in order to produce a similarity matrix given a list of files in a source directory. This similarity matrix can be used for clustering etc.

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canopyClustering

This project implements canopy clustering for string sequences with a compression-based distance function.

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deep-reinforcement-learning-navigation

Deep RL implementation of Double Deep Q-Learning including Dueling Networks as well as prioritized experience replay) to navigate and collect bananas (nom)

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deep-reinforcement-learning-reacher

Continuous control D4PG RL agent implementation

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fastText

Library for fast text representation and classification.

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hierarchical-alignment

This project implements pair-wise (local and global) alignments for sequences that consist of alphabets that are organised in a hierarchical classification scheme.

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asianOptionPricing

This project provides an R package to price asian options. Asian Options rely on the average of the underlying asset over a predetermined averaging period leading up to the maturity time T. Those options are used when price stability of the underlying asset is particularly important.

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aws

Scripts to set up AWS resources

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canonical

This package implements canonical analysis of response surfaces. Canonical analysis is a mathematical framework to achieve greater insights into the sensitivities of each design variable in the vicinity of stationary points.

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deep-reinforcement-learning-tennis

Continuous control, multi-agent DDPG RL agent implementation to solve the tennis Unity environment.

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Euler-Circuit

This project establishes an tree structure given a hierarchical coding system. Once this tree structure is created it also computes the Euler Circuit and corresponding levels in the tree. The Euler Circuit and the corresponding levels can be used to find lowest common ancestors in the tree using range minimum queries.

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ga-framework

A HPC framework for genetic algorithms implemented in C using MPI.

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heat

This project implements the numerical solution using a parallel conjugate gradient algorithm to the heat equation, which is a parabolic partial differential equation that describes the distribution of heat in a given region over time. This project was implemented as part of some course work for the High-Performance Computing M.Sc. at Trinity College Dublin.

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lca

This project implements the least-common ancestor algorithm using segment trees, which is loglinear in space and time to construct and linear in query time.

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lz-parsing

This project implements Lempel-Ziv parsing and encoding of input sequences. This can be used to compress a sequence using a dictionary that is created online.

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org-gcal.el

Org sync with Google Calendar

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sa_sphere

Use simulated annealing to put a configurable number of points evenly spaced on a sphere.

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spark

Mirror of Apache Spark

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