Journal of Computer Science and Cybernetics
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Thuật toán phân tích nguyên tố đối với siêu mã
Journal of Computer Science and Cybernetics - Tập 29 Số 4 - Trang 351-357 - 2014
Siêu mã, một loại mã độ dài thay đổi có nhiều tính chất đặc biệt, đã được giới thiệu và nghiên cứu bởi Đỗ Long Vân và tác giả trong một số bài báo gần đây. Một siêu mã được gọi là nguyên tố nếu nó không thể phân tích thành tích ghép của hai siêu mã khác. Phân tích nguyên tố đối với một siêu mã là phân tích nó thành tích ghép của các siêu mã nguyên tố. Trong bài báo này, một thuật toán phân tích ng......
#Code #supercode #prime supercode #prime decomposition
ENROLLMENT FORECASTING BASED ON LINGUISTIC TIME SERIES
Journal of Computer Science and Cybernetics - Tập 36 Số 2 - Trang 119--137 - 2020
Dealing with the time series forecasting problem attracts much attention from the fuzzy community. Many models and methods have been proposed in the literature since the publication of the study by Song and Chissom in 1993, in which they proposed fuzzy time series together with its fuzzy forecasting model for time series data and the fuzzy formalism to handle their uncertainty. Unfortunately, the ......
#Forecasting model #fuzzy time series #hedge algebras #linguistic time series #linguistic logical relationship
Về một cách tiếp cận cơ sở dữ liệu thiếu thông tin
Journal of Computer Science and Cybernetics - Tập 12 Số 4 - Trang 125--136 - 2016
This paper describes one approach to the problem of extended relational datebase. Fuzzy data can be included in the system at two levels. The first level considers the possibility of making fuzzy queries to the classic relational database. The second level is related to the problem of adding fuzzy information to the system. The evalution function t and the threshold d are introduced for handling......
Improving bottleneck features for Vietnamese large vocabulary continuous speech recognition system using deep neural networks
Journal of Computer Science and Cybernetics - Tập 31 Số 4 - Trang 267 - 2016
In this paper, the pre-training method based on denoising auto-encoder is investigated and proved to be good models for initializing bottleneck networks of Vietnamese speech recognition system that result in better recognition performance compared to base bottleneck features reported previously. The experiments are carried out on the dataset containing speeches on Voice of Vietnam channel (VOV). T......
#Deep bottleneck features #neural network #Vietnamese speech recognition.
CLW_SUMO: A hybrid deep learning model for predicting protein SUMOylation sites
Journal of Computer Science and Cybernetics - - Trang - 2024
Protein SUMOylation is one of the most important post-translational modifications in Eukaryotes species and plays significant roles in many biological processes. The mechanism underlined the SUMOylation process will be an important cause leading to many common serious diseases, such as breast cancer, cardiac, Parkinson’s, Alzheimer’s disease, etc. Due to the very important roles regulated by SUMOy......
#SUMOylation #prediction #convolutional neural networks #long short-term memory #natural language processing #Word2Vec.
50 years field oriented control of three-phase AC drives in the practice - the state-of-the-art
Journal of Computer Science and Cybernetics - Tập 40 Số 1 - Trang 1--22 - 2024
From DC motors (DCM) we know, it is possible to independently control the two currents of the flux and torque generating. Because the two DCM circuits are completely isolated, we obtain simple adjustment algorithms that require little computing time on the microprocessor. For this reason, DCM has been at the forefront of the application of digital controls in drive control systems in the early yea......
#Three-phase AC motor #IM #FOC #field oriented control #direct FOC #indirect FOC #linear control #nonlinear control #exact linearization #flatness-based control.
Phương pháp giải một lớp bài toán quy hoạch nguyên có cấu trúc đặc biệt
Journal of Computer Science and Cybernetics - Tập 15 Số 2 - Trang 61-68 - 2016
In this paper a finite algorithm for solving a class of integer problems with special structure is presented. It is based on techniques commonly used in solving transportation problems to improve feasible solutions. A technique for reducing the size of problems to be solved is also presented. Finally, some computational results are reported.
Recursive join processing in big data environment
Journal of Computer Science and Cybernetics - Tập 37 Số 2 - Trang 107--122 - 2021
In the era of information explosion, Big data is receiving increased attention as having important implications for growth, profitability, and survival of modern organizations. However, it also offers many challenges in the way data is processed and queried over time. A join operation is one of the most common operations appearing in many data queries. Specially, a recursive join is a join type us......
#Apache spark #big data #recursive join #optimize three-way join
PS/2 và những tiêu chuẩn tương lai
Journal of Computer Science and Cybernetics - Tập 3 Số 3 - Trang 23--25 - 2018
PS/2 và những tiêu chuẩn tương lai
An improvement design of multi-function controller for high-tech shrimp farm
Journal of Computer Science and Cybernetics - Tập 39 Số 2 - Trang 191--206 - 2023
Shrimp farming is one of the highest potential areas in the coastal provinces of Vietnam. The technical level of shrimp farming is developing strongly in the direction of high technology based on applying modern equipment and machinery. However, the efficiency of shrimp farming is still not high, the monitoring and control of the actuators are mainly manual. Shrimp farmers are not interested in us......
#High-tech shrimp farm #IoT gateway #smart controller.
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