Essays about: "Clustering"

Showing result 1 - 5 of 481 essays containing the word Clustering.

  1. 1. Identifying Related Clinical Trials by Using Graph Database and Clustering

    University essay from Göteborgs universitet/Institutionen för data- och informationsteknik

    Author : Razan Ghzouli; [2019-10-04]
    Keywords : clinical trials; clustering method;

    Abstract : In this work we investigate two methods to nd similar clinical trials; creating a graph database to migrate clinical trials meta-data from relational database, and clustering clinical trials. We succeeded in identifying similar groups of clinical trials using the clustering method. READ MORE

  2. 2. Predicting Mechanisms of Toxicity for Drug Development

    University essay from Göteborgs universitet/Institutionen för data- och informationsteknik

    Author : SÖREN RICHARD STAHLSCHMIDT; [2019-10-04]
    Keywords : Predictive Toxicology; Metabolomics; Semi-Supervised Learning; DoseResponse;

    Abstract : The aim of this thesis is to predict dierent mechanisms of toxicity from the metabolomic response of HepG2 liver cells. In order to utilize the metabolomic data the a semisupervised machine learning approach is investigated, namely the cluster-then-label approach. The research focuses on the unsupervised part due to the centrality to this method. READ MORE

  3. 3. Supporting regional innovation through Clusters - A multiple-case study of five clusters in Innovation Leading + European Regions

    University essay from Göteborgs universitet/Graduate School

    Author : Prodromos Iatridis; [2019-07-09]
    Keywords : Business clusters; Regional innovation performance; Innovation leading regions in Europe; Contribution of clusters; Cluster activities; Introducing innovation; Facilitate SMEs collaborations; Promote sales of new to market or new to firm innovations;

    Abstract : Nowadays, emerging megatrends foster a fierce competition around the world. Authors are constantly studying the impacts of clustering on regional innovation and in turn economic growth and competitiveness of regions. READ MORE

  4. 4. Hierarchical Clustering of Time Series using Gaussian Mixture Models and Variational Autoencoders

    University essay from Lunds universitet/Matematisk statistik

    Author : Per Wilhelmsson; [2019]
    Keywords : Clustering; Deep Learning; Machine Learning; Time Series; Variational Autoencoders; Gaussian Mixture Models; Mathematics and Statistics;

    Abstract : This thesis proposes a hierarchical clustering algorithm for time series, comprised of a variational autoencoder to compress the series and a Gaussian mixture model to merge them into an appropriate cluster hierarchy. This approach is motivated by the autoencoders good results in dimensionality reduction tasks and by the likelihood framework given by the Gaussian mixture model. READ MORE

  5. 5. Deinterleaving pulse trains with DBSCAN and FART

    University essay from Uppsala universitet/Avdelningen för systemteknik

    Author : Shad Mahmod; [2019]
    Keywords : DBSCAN; FART; Fuzzy; Adaptive; Resonance; Theory; Radar; Clustering; Deinterleaving; Machine Learning;

    Abstract : Studying radar pulses and looking for certain patterns is critical in order to assess the threat level of the environment around an antenna. In order to study the electromagnetic pulses emitted from a certain radar, one must first register and identify these pulses. READ MORE