Essays about: "Long Li"

Showing result 1 - 5 of 76 essays containing the words Long Li.

  1. 1. Optimising Machine Learning Models for Imbalanced Swedish Text Financial Datasets: A Study on Receipt Classification : Exploring Balancing Methods, Naive Bayes Algorithms, and Performance Tradeoffs

    University essay from Linnéuniversitetet/Institutionen för datavetenskap och medieteknik (DM)

    Author : Li Ang Hu; Long Ma; [2023]
    Keywords : Imbalanced datasets; Swedish text financial datasets; Accuracy; Matthews correlation coefficient; Recall; Multinomial Naive Bayes; SMOTE; TomekLinks; Performance optimization;

    Abstract : This thesis investigates imbalanced Swedish text financial datasets, specifically receipt classification using machine learning models. The study explores the effectiveness of under-sampling and over-sampling methods for Naive Bayes algorithms, collaborating with Fortnox for a controlled experiment. READ MORE

  3. 2. Do Stocks Outperform Treasury Bills? Evidence From a Swedish Setting

    University essay from Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi

    Author : Anton Li; Ricky Yu; [2023]
    Keywords : Individual stocks; Treasury bills; Skewness; Buy-and-hold returns; Diversification;

    Abstract : Most Swedish stocks listed since 1983 post lifetime buy-and-hold returns that are less than one-month Swedish Treasury bills. In terms of risk-adjusted returns for the same time horizon, individual Swedish stocks vastly underperform value-weighted benchmarks when measured with a Sharpe ratio. READ MORE

  4. 3. Investigating self-discharge in a graphite dual-ion cell using in-situ Raman spectroscopy.

    University essay from Uppsala universitet/Strukturkemi

    Author : Ismail Yussuf Hassan; [2023]
    Keywords : graphite; dual-ion battery; parasitic reaction; cathode-electrolyte interface; anion intercalation; concentrated electrolyte; self-discharge; Raman spectroscopy;

    Abstract : Anion intercalation in the graphite positive electrode of a dual-ion battery requires high potential (> 4.3 V vs Li+/Li), which aggravates parasitic reactions involving electrolyte decomposition and Al corrosion, manifesting in poor coulombic efficiency, cycle life, and quick self-discharge. READ MORE

  5. 4. Assessing Offshore Wind System Integration: Comparative Analysis of Floating Photovoltaics, Oscillating Surge Wave Converters, and Battery Energy Storage Systems

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Wilhelm Niilekselä; Douglas Hansson; [2023]
    Keywords : Technology and Engineering;

    Abstract : The high penetration of wind power is increasing the intermittency and power variability into the existing power grid. This is forcing industries to look for optimal configurations in order to improve their systems performance and minimize these effects from the power production method. READ MORE

  6. 5. Rätt växt på rätt plats : gestaltningsförslag i torr skugga

    University essay from SLU/Dept. of Landscape Architecture, Planning and Management (from 130101)

    Author : Moa Linder; Li Nilsson; [2023]
    Keywords : ståndortsanpassning; ståndort.; torr skugga; perenner; växtkomposition; gestaltningsförslag; växtlista;

    Abstract : Har du någon gång stött på en gles och ointressant plantering? I så fall kan detta vara en plantering vars växter inte är anpassade för platsen och inte kombinerats på ett tilltalande sätt. Under vår utbildning till landskapsingenjörer har vi vid ett flertal tillfällen uppmärksammats på problemet med planteringar som inte är hållbara i längden och vars växtmaterial inte stämmer med den ståndort som erbjuds. READ MORE