Essays about: "model comparison"

Showing result 1 - 5 of 2312 essays containing the words model comparison.

  1. 1. An Empirical Survey of Bandits in an Industrial Recommender System Setting

    University essay from Göteborgs universitet/Institutionen för data- och informationsteknik

    Author : Tobias Schwarz; Johan Brandby; [2023-09-21]
    Keywords : computer science; industrial application; machine learning; reinforcement learning; multi-armed bandits; MAB; contextual multi-armed bandits; survey; batch learning;

    Abstract : In this thesis, the effects of incorporating unstructured data—images in the wild—in contextual multi-armed bandits are investigated, when used within a recommender system setting, which focuses on picture-based content suggestion. The idea is to employ image features, extracted by a pre-trained convolutional neural network, and study the resulting bandit behaviors when including respective excluding this information in the typical context creation, which normally relies on structured data sources—such as metadata. READ MORE

  2. 2. Demand Forecasting of Automobile Spare Parts after the End-of-Production - A review of demand forecasting models

    University essay from Göteborgs universitet/Graduate School

    Author : Abid Ali; Arosha Ratnayake; [2023-07-03]
    Keywords : Demand forecasting; Spare parts; Automobile; End-of-Production EOP ; PRISMA; AHP; MCDM;

    Abstract : Demand forecasting of spare parts plays a crucial role in automobile industry where it generally requires a significant attention in controlling inventory. It is possible to maintain an optimal stock level when there is a continues supply at the Original Equipment Manufacturers (OEMs). READ MORE

  3. 3. Value at Risk Estimation using GARCH Family Models: A Comparison of Different Specifications and Distributions.

    University essay from Göteborgs universitet/Institutionen för nationalekonomi med statistik

    Author : Khaled Jrideh; [2023-05-26]
    Keywords : ;

    Abstract : The objective of this study is to compare the performance of different GARCH models, under various conditional distribution assumptions, to predict one-day-ahead Value-at-Risk (VaR) for three stocks: Swedbank, Handelsbanken, and SEB over the Covid-19 period. The performance is evaluated using Kupiec, Christoffersen tests and the Quadratic Loss. READ MORE

  4. 4. Syntax-based Concept Alignment for Machine Translation

    University essay from Göteborgs universitet/Institutionen för data- och informationsteknik

    Author : Arianna Masciolini; [2023-03-30]
    Keywords : computational linguistic; machine translation; concept alignment; syntax; dependency parsing; Universal Dependencies; Grammatical Framework;

    Abstract : This thesis presents a syntax-based approach to Concept Alignment (CA), the task of finding semantical correspondences between parts of multilingual parallel texts, with a focus on Machine Translation (MT). Two variants of CA are taken into account: Concept Extraction (CE), whose aim is to identify new concepts by means of mere linguistic comparison, and Concept Propagation (CP), which consists in looking for the translation equivalents of a set of known concepts in a new language. READ MORE

  5. 5. Modelling Micropollutant Removal Through Ozonation in Wastewater

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Maximiliano Andrés Oportus Foster; [2023]
    Keywords : Micropollutants; water reuse; wastewater treatment models; ozonation; computer modeling; water and environmental engineering; Technology and Engineering;

    Abstract : Proper management of water resources is a key to climate change adaptation and resilience in modern societies. Adequate treatment of wastewater is essential for ensuring the sustainability of the water cycle and the health of the environment and the ecosystems that inhabit it. READ MORE