Essays about: "data mining"

Showing result 21 - 25 of 656 essays containing the words data mining.

  1. 21. Evaluating clustering techniques in financial time series

    University essay from Uppsala universitet/Avdelningen för systemteknik

    Author : Johan Millberg; [2023]
    Keywords : clustering; machine learning; financial time series; time series; unsupervised learning; cluster validation; cluster evaluation; klustring; klusteranalys; finansiella tidsserier; maskininlärning; klustervalidering; evalueringsteknik;

    Abstract : This degree project aims to investigate different evaluation strategies for clustering methodsused to cluster multivariate financial time series. Clustering is a type of data mining techniquewith the purpose of partitioning a data set based on similarity to data points in the same cluster,and dissimilarity to data points in other clusters. READ MORE

  3. 22. Recommendation of Text Properties for Short Texts with the Use of Machine Learning : A Comparative Study of State-of-the-Art Techniques Including BERT and GPT-2

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

    Author : Luciano Zapata; [2023]
    Keywords : Text classification; Short texts; Deep Learning; BERT; GPT; GPT-2; Transformers; Natural Language Processing; Textklassificering; Korta Texter; Djupinlärning; BERT; GPT; GPT-2; Transformatorer; Naturlig språkbehandling;

    Abstract : Text mining has gained considerable attention due to the extensive usage ofelectronic documents. The significant increase in electronic document usagehas created a necessity to process and analyze them effectively. READ MORE

  4. 23. The effect of mine closures on depopulation in the Principality of Asturias, Spain

    University essay from Lunds universitet/Ekonomisk-historiska institutionen

    Author : Cristina Álvarez Argüelles; [2023]
    Keywords : Social Sciences;

    Abstract : The paper examines the impact of the mining sector's closure on population decline patterns in the Principality of Asturias, Spain. It utilizes two distinct databases of own construction that provide disaggregated data on the region's 78 councils. READ MORE

  5. 24. Organizational Readiness for Initiating the Implementation of the RAMP Tool : A case study of LKAB Malmberget

    University essay from KTH/Ergonomi

    Author : Katerina Kraus; [2023]
    Keywords : Systematic work environment management; RAMP tool; organizational readiness; implementation of risk management tool;

    Abstract : In Sweden, all employers are obligated to provide occupational health services that prevent and eliminate health risks in the workplace. Risk assessment is one of the recommended procedures of systematic work environment management that employers shall conduct to investigate the occurrence of workplace risks. READ MORE

  6. 25. Improving Change Point Detection Using Self-Supervised VAEs : A Study on Distance Metrics and Hyperparameters in Time Series Analysis

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

    Author : Daniel Workinn; [2023]
    Keywords : Change point detection; Time series data; Segmentation; Machine learning; Data mining; Detektion av brytpunkter; Tidsseriedata; Segmentering; Maskininlärning; Datautvinning;

    Abstract : This thesis addresses the optimization of the Variational Autoencoder-based Change Point Detection (VAE-CP) approach in time series analysis, a vital component in data-driven decision making. We evaluate the impact of various distance metrics and hyperparameters on the model’s performance using a systematic exploration and robustness testing on diverse real-world datasets. READ MORE