Essays about: "Statistiska"

Showing result 6 - 10 of 1146 essays containing the word Statistiska.

1. 6. Predicting Electricity Consumption with ARIMA and Recurrent Neural Networks

   University essay from Uppsala universitet/Statistiska institutionen

   Author : Klara Enerud; [2024]
   Keywords : time series forecasting; ARIMA; recurrent neural networks; LSTM; electricity forecasting; EED forecasting;

   Abstract : Due to the growing share of renewable energy in countries' power systems, the need for precise forecasting of electricity consumption will increase. This paper considers two different approaches to time series forecasting, autoregressive moving average (ARMA) models and recurrent neural networks (RNNs). READ MORE

3. 7. Comparison of VADER and Pre-Trained RoBERTa: A Sentiment Analysis Application

   University essay from Lunds universitet/Statistiska institutionen

   Author : Linda Erwe; Xin Wang; [2024]
   Keywords : sentiment analysis; natural language processing; BERT; VADER; sustainability report; Mathematics and Statistics;

   Abstract : Purpose: The purpose of this study is to examine how the overall sentiment results from VADER and a pre-trained RoBERTa model differ. The study investigates potential differences in terms of the median and shape of the two distributions. Data: The sustainability reports of 50 independent random companies are selected as the sample. READ MORE

4. 8. A Comparative Analysis of Whisper and VoxRex on Swedish Speech Data

   University essay from Uppsala universitet/Statistiska institutionen

   Author : Max Fredriksson; Elise Ramsay Veljanovska; [2024]
   Keywords : ASR; Automatic Speech Recognition; Swedish Speech Recognition; Speech Recognition Models; Speech-to-Text; Whisper; VoxRex; Wav2Vec; Model Comparison; Transformer Models; Neural Networks; Machine Learning; WER; Word Error Rate; Transcription;

   Abstract : With the constant development of more advanced speech recognition models, the need to determine which models are better in specific areas and for specific purposes becomes increasingly crucial. Even more so for low-resource languages such as Swedish, dependent on the progress of models for the large international languages. READ MORE

5. 9. Predicting Lithium-Ion Battery State of Health using Linear Regression

   University essay from Uppsala universitet/Statistiska institutionen

   Author : Niklas Sundberg; [2024]
   Keywords : Lithium-Ion; Multiple Linear Regression; State of Health; Voltage Deviation;

   Abstract : Knowledge of battery health is very important. It provides insight into the capacity of a given system and allows the operators to plan ahead more efficiently. But measuring state of health (SoH) of a battery is difficult, and takes time. More importantly, the battery needs to be taken out of operation to be analysed correctly. READ MORE

6. 10. Stock Price Predictions for FAANG Companies Using Machine Learning Models

   University essay from Lunds universitet/Statistiska institutionen

   Author : Hugo Dahlquist; Fredrik Fourong; [2024]
   Keywords : Random Forest; Artificial Neural Networks; Stock prices; Predictions.; Mathematics and Statistics;

   Abstract : The financial industry is one of the highest grossing sectors in the world as it is estimated to represent 24\% of the global economy. As most companies want their asset value to increase, it is of high interest to make good investments which will increase in either the short or long run. READ MORE