Essays about: "weighting system"

Showing result 6 - 10 of 67 essays containing the words weighting system.

  1. 6. Topical Classification of Images in Wikipedia : Development of topical classification models followed by a study of the visual content of Wikipedia

    University essay from Linköpings universitet/Datorseende

    Author : Matheus Vieira Bernat; [2023]
    Keywords : Wikipedia; Multilabel classification; Deep learning;

    Abstract : With over 53 million articles and 11 million images, Wikipedia is the greatest encyclopedia in history. The number of users is equally significant, with daily views surpassing 1 billion. Such an enormous system needs automation of tasks to make it possible for the volunteers to maintain. READ MORE

  3. 7. Compression Selection for Columnar Data using Machine-Learning and Feature Engineering

    University essay from Malmö universitet/Institutionen för datavetenskap och medieteknik (DVMT)

    Author : Douglas Persson; Ludvig Juelsson Larsen; [2023]
    Keywords : Machine Learning; XGBoost; Classification; Feature Engineering; Compression Algorithms; Data Encodings; Database Management System DBMS ; Column- Oriented DBMS;

    Abstract : There is a continuously growing demand for improved solutions that provide both efficient storage and efficient retrieval of big data for analytical purposes. This thesis researches the use of machine-learning together with feature engineering to recommend the most cost-effective compression algorithm and encoding combination for columns in a columnar database management system (DBMS). READ MORE

  4. 8. A Study of Direction of Arrival Methods Based on Antenna Arrays in Presence of Model Errors.

    University essay from Uppsala universitet/Signaler och system

    Author : Julia Sjödin; [2022]
    Keywords : Direction of Arrival; DOA; WSF; MUSIC; TLS-ESPRIT; Extended Kalman filter; model error;

    Abstract : Methods for Direction of Arrival, DOA estimation of multiple objects based on phased arrayantenna technology have many advantages in for example electronic warfare and radarapplications. However, perfect calibration of an antenna array can seldom be achieved. READ MORE

  5. 9. Hedging the Term Structure Risk of Carbon Allowance Derivatives : An Application of Stochastic Optimisation to EUA Market Making

    University essay from Linköpings universitet/Produktionsekonomi

    Author : Nikolas Tsigkas; [2022]
    Keywords : Commodity Derivatives; Emissions Trading; Term Structure; Nonparametric Curve Estimation; Hedging; Stochastic Optimisation; Monte Carlosimulation; Market Microstructre; Systematic Risk Factors;

    Abstract : The initiative by the EU to combat global warming through the introduction of a cap-and-trade system for greenhouse gas emissions in 2005, known as the EU Emissions Trading System (ETS), resulted in the inception of a new financial market. The right to emit one tonne of CO2-equivalents, as well as derivatives on this right, have become commodities, traded both through exchanges and over the counter. READ MORE

  6. 10. Video-Based Estimation of Driver Sleepiness Using Machine Learning

    University essay from Linköpings universitet/Institutionen för systemteknik

    Author : Simon Knutsson; [2022]
    Keywords : Driver sleepiness; drowsiness; classification; estimation; machine learning;

    Abstract : Approximately 1.35 million people die each year in car accidents and it is the most common cause of death for people aged 5-29. Because of this it is of large interest to be able to detect when a driver enters a sleepy state and to be able to alert the driver. READ MORE