English computer science

Semantic extraction from images is a topical problem and is applied in many different semantic retrieval systems. In this paper, a method of image semantic retrieval is proposed based on a set of images similar to the input image. Since then, the semantics of the image are queried on the ontology by the visual word vector.

20p vimurdoch 18-09-2023 7 3   Download

In line with that research trend, this paper proposes a hybrid algorithm combining particle swarm optimization with the simulated annealing technique (PSO-SA) to optimize the length of intervals to improve forecasting accuracies.

19p vimurdoch 18-09-2023 12 4   Download

This purpose of this work was to investigate the patient radiation doses and image quality of a Philips/Agfa computed radiographic (CR) system and a Philips indirect-capture digital radiographic (DR) system in a paediatric setting. A CDRAD digital radiographic contrast-detail phantom was used to assess radiographic image quality. Perspex slabs of three different thicknesses (6, 11 and 16 cm) were used to simulate paediatric patients of three arbitrary ages.

159p runthenight05 01-03-2023 10 3   Download

In the multi-dimensional model of data warehouses, data drawn from multiple sources is organized into fact tables and dimension tables. Data cubes pre-compute the aggregations of measurements along combinations of dimensions to speed up the processing of Online Analytical Processing (OLAP) queries. When the underlying fact tables or dimension tables change over time, data cubes need to be incrementally maintained to reflect these changes. In this thesis, we study the problem of incrementally maintaining data cubes under slowly changing dimensions.

22p runthenight05 01-03-2023 10 3   Download

This thesis addresses important issues about how to make game characters and virtual agents more realistic or believable by using cognitive-social personality theories. We begin motivation by discussing two examples. The first is from a television series and the second is a more concrete example that will be used throughout the thesis to explain concepts and the model. These examples represent the ideal goal of our work.

261p runthenight07 01-03-2023 7 3   Download

What are the key aspects to achieving acceptable usability outcomes for information systems being developed? The changing technologies and increased usage across the general population, the impacts of this in our everyday lives, at work and at leisure are exponentially increasing. The interfaces and interaction styles presented as part of these technologies have been challenged to be more intuitive, contextually sensitive, location aware, human centred and aimed at a larger community of stakeholders.

376p runthenight04 02-02-2023 6 2   Download

In this Masters thesis computational modelling techniques were employed to investigate iron-free apo-Lactoferrin (apo-Lf) structural conformation changes in the presence of variant temperature and pH. These conditions represent the environment most milk protein goes through in food processing and the production of food products.

162p runthenight04 02-02-2023 8 3   Download

The thesis goal is to study on artificial intelligence, the methods and algorithms that have been applied, evaluating the limitations of the current methods in order to propose improved solutions, enhancing the efficiency and accuracy of AI applied in object detection.

118p linyanjun_2408 21-04-2022 18 3   Download

The thesis mainly aims to solve the following tasks: Firstly, the thesis extensively analyzes a wide range of existing approaches for the ME detection in scientific document images. Then, the thesis investigates and proposes novel methods to improve the detection accuracy of MEs. After enhancing the detection accuracy of MEs, the thesis investigates and pro poses a framework to improve the accuracy of the recognition of MEs in scientific document images.

154p mintmintt 05-10-2021 14 4   Download

Research and improve scheduling admission control mechanism to enhance QoS based on incoming burst rate prediction at core node to improve scheduling efficiency for low QoS bursts but still ensure a level of service quality for high QoS bursts. The effectiveness of the scheduling admission control mechanism was valued through simulation and mathematical analysis.

26p gaocaolon12 18-06-2021 27 3   Download

The objective of the thesis: Proposes filter-wrapper algorithms for fuzzy rough set based attribute reduction in decision tables to reduce the cardinality of reduct and increase significantly the classification accuracy.

28p extraenglish 24-05-2021 12 3   Download

In recent years, optical orthogonal frequency division multiplexing (OOFDM) has emerged as a dominant research and development area in the field of high-speed optical communications. OFDM is a potential candidate as the most promising next-generation optical networks such as passive optical networks and optical transport networks, due to their simple configuration based on low cost, high speed data rates, high spectral efficiency, high quality of service and robustness against narrow band interference, frequency selective fading, and chromatic dispersion.

99p nguathienthan12 18-05-2021 21 7   Download

The main aim of this thesis is to overcome the second limitation of the automatic plant identification (low recognition accuracy) by proposing novel and robust methods for plant recognition. For this, we first focus on improving the recognition accuracy of plant identification based on images of one sole organ. Among different organs of the plant, we select leaf as this organ is the most widely in the literature.

27p gaocaolon6 30-07-2020 29 3   Download

In this dissertation, we aim to propose a robust 3-D object detection and recognition system. As a feasible solution to deploy a real application, the proposed framework should be simple, robust and friendly to the VIPs.

28p gaocaolon6 30-07-2020 33 4   Download

Doctoral dissertation present the content: point cloud representation and the proposed method for table plane detection; primitive shapes estimation by a new robust estimator using geometrical constraints; detection and estimation of a 3-D object model for a real application; conclusion and future works.

159p gaocaolon6 30-07-2020 28 3   Download

In this thesis, using the data from the Viral Genome Resource at National Center for Biotechnology Informa-tion (NCBI), we propose the ROTA model that has been specifically estimated formodeling the evolution of rotavirus.

56p tamynhan0 04-07-2020 18 3   Download

Main points of thesis: Fabrication of the carbon nanotube based internal combustion engine oils; measurement, characterization of CNTs-based oils regarding their structures, physical, thermal, and electrical properties; heat dissipation modeling and thermal-conductivity computation of the carbon nanotube based internal combustion engine oils, and comparison with the experimental results.

23p xacxuoc4321 09-07-2019 26 4   Download

Research subjects of the thesis are ontology, inconsistent knowledge in ontologies and methods of processing inconsistent knowledge in ontologies. By analyzing research motivations, we address objectives of research for processing inconsistent in ontologies by the two tasks: querying andintegrating. In particularly, we restrict the objectives of research by three problems following: determine meaningful result for querying inconsistent ontology, resolving conflict of concept level in ontology integration, esolving conflict of axiom level in ontology integration.

26p dtphuongg 10-09-2018 33 4   Download

Research objectives: Building a method of granulating partitions of domain of interpretation in DLs. This method is base on bisimulation and using suitable selectors as well as information gain measure; proposing bisimulation-based concept learning algorithms for knowledge bases in DLs using Setting.

31p change03 06-05-2016 51 3   Download

Research objectives: Studying and evaluation of active queue management mechanisms to find out the advantages and disadvantages of each mechanism, in order to classify and evaluate application performance for mechanisms and using fuzzy logic to improve active queue management mechanism; the results of the first goals is to perform study motivation first and will be the foundation for the theory and simulation improvements of the thesis.

31p change03 06-05-2016 58 4   Download