Essays about: "agglomerative clustering"

Showing result 21 - 25 of 28 essays containing the words agglomerative clustering.

  1. 21. Semantic Integration across Heterogeneous Databases : Finding Data Correspondences using Agglomerative Hierarchical Clustering and Artificial Neural Networks

    University essay from KTH/Skolan för datavetenskap och kommunikation (CSC); KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Mark Hobro; [2018]
    Keywords : Semantic integration; data integration; artificial neural networks; agglomerative hierarchical clustering; heterogeneous databases; relational data;

    Abstract : The process of data integration is an important part of the database field when it comes to database migrations and the merging of data. The research in the area has grown with the addition of machine learning approaches in the last 20 years. Due to the complexity of the research field, no go-to solutions have appeared. READ MORE

  3. 22. Combining Unsupervised and Supervised Statistical Learning Methods for Currency Exchange Rate Forecasting

    University essay from KTH/Matematisk statistik

    Author : Polina Vasiljeva; [2016]
    Keywords : ;

    Abstract : In this thesis we revisit the challenging problem of forecasting currency exchange rate. We combine machine learning methods such as agglomerative hierarchical clustering and random forest to construct a two-step approach for predicting movements in currency exchange prices of the Swedish krona and the US dollar. READ MORE

  4. 23. Clustering Users Based on Mobility Patterns for Effective Utilization of Cellular Network Infrastructure

    University essay from Blekinge Tekniska Högskola/Institutionen för datalogi och datorsystemteknik

    Author : SUSHEEL SAGAR KOTTUPPARI SRINIVAS; [2016]
    Keywords : Cellular Network Planning; Subscriber Mobility Analysis; Marketing Computing; Cluster Analysis.;

    Abstract : Context With the rapidly growing demand for cellular networks’ capacityand coverage, effective planning of Network Infrastructure (NI) has been amajor challenge for the telecom operators. The mobility patterns of different subscriber groups in the networks have been found to be a crucialaspect in the planning of NI. READ MORE

  5. 24. A comparison of clustering techniques for short social text messages

    University essay from KTH/Skolan för datavetenskap och kommunikation (CSC)

    Author : Erik Ranby; [2016]
    Keywords : clustering K-means hierarchical;

    Abstract : The amount of social text messages authored each day is huge and the information contained within is potentially very valuable. Software that can cluster and thereby help analyze these messages would consequently be helpful. This thesis explores several ways of clustering social text messages. READ MORE

  6. 25. An Explorative Parameter Sweep: Spatial-temporal Data Mining in Stochastic Reaction-diffusion Simulations

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Fredrik Wrede; [2016]
    Keywords : Big data; feature extraction; clustering; stochastic reaction-diffusion simulation; spatial-temporal; data mining; cloud computing;

    Abstract : Stochastic reaction-diffusion simulations has become an efficient approach for modelling spatial aspects of intracellular biochemical reaction networks. By accounting for intrinsic noise due to low copy number of chemical species, stochastic reaction-diffusion simulations have the ability to more accurately predict and model biological systems. READ MORE