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A new fuzzy time series model based on Hedge Algebra to forecast bitcoinThe fuzzy time series model has become a research topic attracting attention because of its practical value in the field of time series forecasting, specifically, it is useful for time series with small observations or the one of strong fluctuations. This paper introduces a fuzzy time series model based on hedge algebra with a new formula for calculating forecasting values.
Summary of Mathematics Doctoral Dissertation: Apply Markov chains model and fuzzy time series for forecastingThesis with the aim of focusing on two main issues. The first is time series modeling by states in which each state is a deterministic probability distribution (normal distribution). Based on the experimental results to assess the suitability of the model. Second, combine Markov chains and fuzzy time series into new models to improve forecast accuracy. Expand the model with high-level Markov chains to be compatible with seasonal data.
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Bài giảng Electrical and electronic principles: Chương 6 - ThS. Ngô Quốc CườngNhững nội dung chính được trình bày trong bài giảng Electrical and electronic principles - Chương 6 gồm có: Trigonometric fourier series, plot function - MATLAB, circuit application (Applying Fourier series). Mời các bạn cùng tham khảo.
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Hướng dẫn sử dụng nhanh máy toàn đạc TPS400 SeriesNhằm giúp các bạn chuyên ngành Cơ khí - Chế tạo máy có thêm tài liệu học tập và nghiên cứu, mời các bạn cùng tham khảo tài liệu "Hướng dẫn sử dụng nhanh máy toàn đạc TPS400 Series" dưới đây. Nội dung tài liệu hướng dẫn cụ thể chi tiết các ký hiệu, cách sử dụng máy toàn đạc TPS400 Series.
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Hướng dẫn sử dụng nhanh máy toàn đạc điện tử Sokkia CX/SE SeriesHướng dẫn sử dụng nhanh máy toàn đạc điện tử Sokkia CX/SE Series được biên soạn với các nội dung chính: Đo tọa độ, đo đạc chi tiết, bố trí điểm, trút và xử lí số liệu. Để nắm vững hơn nội dung kiến thức tài liệu mời các bạn cùng tham khảo tài liệu.
17 trang
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Sổ tay hướng dẫn sử dụng và bảo dưỡng Isuzu Forward F SeriesNội dung tài liệu trình bày các chi tiết trong xe, thông tin về xe, các thông tin quan trọng, cửa, cửa sổ và ghế ngồi, điều khiển và thiết bị, tiện nghi và tiện ích, phương pháp để vận hành xe an toàn và ổn định, kiểm tra và bảo dưỡng, các trường hợp khẩn cấp.
59 trang
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A hybrid PSO-SA scheme for improving the accuracy of fuzzy time series forecasting modelsIn 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.
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A study of customers’ satisfaction with Korean dramas in VietnamThe findings have indicated that script, music, cultural images have a correlation with Vietnamese viewers’ satisfaction with Korean dramas while actors do not affect the overall satisfaction. Based on the findings,the authors provide implications and offer suggestions to Vietnamese filmmakers on improving customer satisfaction, thereby contributing to the development of TV drama production in Vietnam.
13 trang
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Low-voltage ride through capability for DFIG wind turbine system based on series grid side converterThis paper proposes a low-voltage ridethrough (LVRT) capability for a doubly-fed induction generator (DFIG) wind turbine (WT) system. With the proposed method, series grid-side converter (SGSC) in which its DC-side connected at the DC bus of the back-toback converters and its AC-side connected in series with line through transformer have been applied, enables to compensate a voltage response of the system during the grid faults and to reduce the capital cost.
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Hướng dẫn sử dụng Pdfscreen Tà liệu hướng dẫn cách sử dụng PdfScreen. Mời các bạn cùng tham khảo.
7 trang
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Time series analysis and applications in data analysis, forecasting and predictionTime series analysis is an essential field in data analysis, particularly within forecasting and prediction domains. Researching and building time series models play a crucial role in understanding and predicting the temporal dynamics of various phenomena. In mathematics, time series data is defined as data points indexed in chronological order and have a consistent time interval between consecutive observations.
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Master's thesis of Engineering: Autonomous power management of series-cascaded and hybrid microgridsThis research work first aims to develop a microgrid architecture integrating dispatchable and non-dispatchable distributed generation units in a series-cascaded manner. Existing control strategies for cascaded microgrids focus on dispatchable type generation only. However, adequate power sharing and voltage regulation of a microgrid containing mixed dispatchable and non-dispatchable cascaded generation units demand new control approaches to achieve operational performance and reliability comparable to the conventional parallel-topology microgrid.
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Doctoral thesis of Philosophy: Economic consequences of the size of government in AustraliaThe thesis contributes to the economics literature by providing a theoretical and empirical investigation of the effects of changes in the relative size of government on Australian economic performance. The theoretical literature indicates that an expansion in government size is likely to induce adverse effects upon economic growth for a host of reasons. These include the distortionary effects of taxation imposed to finance government expenditures, the displacement effects of private sector economic activity attributable to public sector interventions, and the growth in governmental activity encouraging economic participants to divert their attentions away from direct market activities and towards seeking benefits through the political process.
210 trang
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Red mud & graphene oxide blend as an effective coagulant and adsorbent for the treatment of waste water from various industriesA series of blends consisting of Red mud(RM) varying from 1.5 to 3 g and Graphene oxide(GO) varying from 0 to 1.5 g to give a total of 3g were prepared.
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Crack growth path prediction for the angled cracked plate using higher order terms of Williams series expansionIn this paper, using higher-order terms of Williams’s series expansion and the maximum tangential stress criterion, the mixed mode I/II crack growth path of an angled crack plate subjected to biaxial far field loading is investigated theoretically.
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Lecture Business statistics in practice (7/e): Chapter 16 - Bowerman, O'Connell, MurphreeChapter 16 - Times series forecasting and index numbers. This chapter includes contents: Time series components and models, time series regression, multiplicative decomposition, simple exponential smoothing, Holt-Winter’s Models, the Box Jenkins methodology (optional advanced section), forecast error comparisons, index numbers.
14 trang
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Đề tài " Hilbert series, Howe duality and branching for classical groups " An extension of the Littlewood Restriction Rule is given that covers all pertinent parameters and simplifies to the original under Littlewood’s hypotheses. Two formulas are derived for the Gelfand-Kirillov dimension of any unitary highest weight representation occurring in a dual pair setting, one in terms of the dual pair index and the other in terms of the highest weight.
40 trang
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Impact of capital market on Nigerian economy, 1981 - 2014This study examined the impact of the capital market on Nigerian economy. Time series data were collected on Real Gross Domestic Product, Market Capitalization, All Share Index and Turnover Ratio from 1981 - 2014.
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Machine learning applications for chloride ingress prediction in concrete: Insights from recent literatureThis review explores recent ML advancements in assessing corrosion in RC structures. Various algorithms, such as Artificial Neural Networks (ANNs), Gene Expression Programming (GEP), Extreme Gradient Boosting (XGBoost), Support Vector Machine (SVM) and Ensemble Learning, have shown potential in estimating corrosion processes, predicting material properties, and evaluating structural durability.
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