Essays about: "Preprocessing"

Showing result 1 - 5 of 141 essays containing the word Preprocessing.

  1. 1. Machine Learning Based Intraday Calibration of End of Day Implied Volatility Surfaces

    University essay from KTH/Matematisk statistik; KTH/Matematisk statistik

    Author : Christopher Herron; André Zachrisson; [2020]
    Keywords : Applied Mathematics; Machine Learning; Statistics; Gaussian Process; Neural Network; Options; Volatility; Implied Volatility Surface; Black Scholes; Tillämpad matematik; Maskininlärning; Statistik; Gaussisk Process; Neurala Nätverk; Optioner; Volatilitet; Implicit Volatilitetsyta; Black Scholes;

    Abstract : The implied volatility surface plays an important role for Front office and Risk Management functions at Nasdaq and other financial institutions which require mark-to-market of derivative books intraday in order to properly value their instruments and measure risk in trading activities. Based on the aforementioned business needs, being able to calibrate an end of day implied volatility surface based on new market information is a sought after trait. READ MORE

  2. 2. Preprocessing method comparison and model tuning for natural language data

    University essay from Högskolan Dalarna/Mikrodataanalys

    Author : Peter Tempfli; [2020]
    Keywords : Natural language processing; sentiment analysis; machine learning;

    Abstract : Twitter and other microblogging services are a valuable source for almost real-time marketing, public opinion and brand-related consumer information mining. As such, collection and analysis of user-generated natural language content is in the focus of research regarding automated sentiment analysis. READ MORE

  3. 3. Evaluation of text classification techniques for log file classification

    University essay from Linköpings universitet/Institutionen för datavetenskap

    Author : Per Olin; [2020]
    Keywords : Text classification; machine learning; NLP; natural language processing; log file; doc2vec; CNN; LSTM; LSTM-CNN;

    Abstract : System log files are filled with logged events, status codes, and other messages. By analyzing the log files, the systems current state can be determined, and find out if something during its execution went wrong. READ MORE

  4. 4. FPGA acceleration of superpixel segmentation

    University essay from Mälardalens högskola/Inbyggda system

    Author : Magnus Östgren; [2020]
    Keywords : ;

    Abstract : Superpixel segmentation is a preprocessing step for computer vision applications, where an image is split into segments referred to as superpixels. Then running the main algorithm on these superpixels reduces the number of data points processed in comparison to running the algorithm on pixels directly, while still keeping much of the same information. READ MORE

  5. 5. Number Recognition of Real-world Images in the Forest Industry : a study of segmentation and recognition of numbers on images of logs with color-stamped numbers

    University essay from Mittuniversitetet/Institutionen för informationssystem och –teknologi

    Author : Johan Munter; [2020]
    Keywords : Number recognition; preprocessing; machine learning; forest industry;

    Abstract : Analytics such as machine learning are of big interest in many types of industries. Optical character recognition is essentially a solved problem, whereas number recognition on real-world images which can be one form of machine learning are a more challenging obstacle. READ MORE