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Kết quả từ khoá "estimation"
7 trang
47 lượt xem
1
47
ISDNN: A deep neural network for channel estimation in massive MIMO systems
In this paper, we propose a single-step Deep Neural Network (DNN) for CE, termed Iterative Sequential DNN (ISDNN), inspired by recent developments in data detection algorithms. ISDNN is a DNN based on the projected gradient descent algorithm for CE problems, with the iterative iterations transforming into a DNN using the deep unfolding method.
vijiraiya
45 trang
18 lượt xem
1
18
Lesson Machine Vision: Chapter 9 - TS. Nguyen Thanh Hung
Lesson "Machine Vision" Chapter 9 - Camera Calibration and 3D Reconstruction, compiled including the following main contents: Camera calibration; Robot Camera Calibration; Pose estimation; Stereo vision.
phongtrongkim0906
3 trang
32 lượt xem
1
32
An extension of methodology for estimating the fatalities and injuries due to floods in Tra Khuc – Ve river basin
The loss of life in floods is due to both drowning and/or the spread of disease epidemics. The objectives of this study is to focus on estimating appropriate methods and functions for assessing the potential damages to human life in river basin due to floods.
vimaito
6 trang
50 lượt xem
1
50
Advance path loss model for LoRaWA coverage estimation
This paper demonstrates that, using multiple data points around each gateway allows for the creation of accurate coverage heat maps by using a proposed LoRaWAN coverage estimation algorithm. This method effectively identifies areas with varying signal strength across Da Nang City, highlighting where additional gateways are needed to improve network reliability.
vihyuga
25 trang
49 lượt xem
2
49
Optimizing axial bearing capacity estimation of prebored grouted planted nodular (PGPN) pile: Enriched dataset and genetic algorithm approach
This study introduces a practical and efficient methodology to improve the estimation of the ultimate axial bearing capacity of Pre-bored Grouted Planted Nodular (PGPN) piles, addressing a critical need in geotechnical engineering.
viyamanaka
10 trang
22 lượt xem
2
22
Efficient interaction recognition in video for edge devices: A lightweight approach
Efficient and accurate recognition of human interactions is crucial for numerous service applications, including security surveillance and public safety. In this paper, we propose a lightweight methodology for detecting human activity and interactions in video streams, specifically tailored for edge computing environments.
viyamanaka
12 trang
38 lượt xem
2
38
A study on identifying and analyzing road traffic incident hotspots on National Highway 1A, Thanh Hoa province, Vietnam, employing Statistical and GIS Techniques
The study focuses on the prevalence of road traffic accidents in Vietnam, particularly along national highways, which are frequent and severe. Specifically, it examines National Highway 1A passing through Thanh Hoa province, utilizing statistics and geographic information systems (GIS) to identify high-risk areas.
viyamanaka
9 trang
27 lượt xem
1
27
Improving precipitation estimation accuracy for the Central Vietnam region using the XGBoost model with multi-source data
This paper presents a novel approach to enhancing the accuracy of precipitation estimation in Central Vietnam using the Extreme Gradient Boosting (XGBoost) machine learning model. The proposed method integrates multi-source data, combining satellite imagery from Himawari-8, atmospheric reanalysis from ERA-5, and digital elevation models from ASTER DEM to train the model.
tuetuebinhan000
14 trang
17 lượt xem
2
17
Estimation of California Bearing Ratio of soils using Random Forest based machine learning
In this study, the Machine Learning (ML) approach has been adopted using Random Forest (RF) model to estimate the CBR of the soil based on 10 input parameters such as Plasticity Index (PI), Liquid Limit (LL), Silt Clay content (SC), Fine Sand content (FS), Coarse sand content (CS), Optimum Water Content (OWC), Organic content (O), Plastic Limit (PL), Gravel content (G), and Maximum Dry Density (MDD), which can be easily determined in the laboratory.
viengfa
11 trang
45 lượt xem
2
45
Estimation of the bond strength between FRP and concrete using ANFIS and hybridized ANFIS machine learning models
Adaptive Neuro-Based Fuzzy Inference System (ANFIS) and Particle Swarm Optimization (PSO) algorithms were utilized to produce numerical tools for predicting the bond strength between the concrete surface and carbon fiber reinforced polymer (CFRP) sheets.
viengfa
10 trang
17 lượt xem
2
17
Application of an artificial neural network and QCM sensor coated with γ-Fe2O3 nanoparticles for estimation of SO2 gas sensing characteristics
The basic characteristics of sensor were investigated, and these experimental data were used for a machine learning. The results of the model validation proved to be a reliable way between the experiment and prediction values.
viengfa
8 trang
10 lượt xem
1
10
Rice grain trait estimation using color space conversion and deep learning-based image segmentation
This research proposes a new approach that leverages low-cost digital cameras and deep learning technology for counting and extracting rice grain traits. Our study introduces a preprocessing step to separate rice grain regions from the input image background using color space conversion.
viling
32 trang
57 lượt xem
5
57
Bài giảng Phân tích số liệu mảng - Chương 5: Dynamic panel model
Bài giảng Phân tích số liệu mảng - Chương 5: Dynamic panel model. Chương này cung cấp cho sinh viên những nội dung gồm: giới thiệu về Dynamic panel model; ước tính hiệu ứng cố định và ngẫu nhiên; ước tính biến công cụ (phương pháp IV) (Anderson và Hsiao, 1982); 2SLS, phương pháp tiếp cận mô men tổng quát (GMM) (Arenalloand Bond, 1985);... Mời các bạn cùng tham khảo!
caongulam
103 trang
35 lượt xem
2
35
Master's thesis of Engineering: An estimation of critical wind speed and a calculation of mechanical properties for two Australian eucalypts
One of the main objectives for this thesis is to provide an extensive literature review on the knowledge of the failure of trees in general and specifically Eucalyptus. By doing so, gaps in the literature and research will be revealed and then the remaining objectives will be selected experimental work filling the gaps for Eucalypts.
runthenight04
473 trang
79 lượt xem
3
79
Doctoral thesis of Philosophy: Determinants of bilateral export flows in the world economic integration process, the case of Vietnam (1986-2010): A gravity approach
Trade and world economic integration are seen as the impetus for accelerating the well-beings of the domestic Vietnamese communities and international community in the region. However, an understanding of the link between trade and economic integration from the perspective of Vietnam is missing. Empirical studies on Vietnamese trade are in lack to address these determinants (see, Le, 1996; Nguyen, 2010). This thesis identifies the key factors that have driven the impressive growth of Vietnamese exports during the world economic integration process (1986-2010). Importantly, this study applies the gravity equation to investigate these factors by the two aspects, namely, the aggregate and sectoral exports analysis.
runthenight04
105 trang
29 lượt xem
2
29
Master's thesis of Engineering: Autonomous search by a UAV for a source of EM radiation in an urban environment
This study develops an online unmanned UAV path-planning strategy for autonomous search and localisation of RF emitter. The UAV is equipped with Receiver Signal Strength (RSS) sensors to localise stationary radio frequency (RF) emitter. A high-fidelity non-linear measurement model of RF propagation in an urban environment is adopted for this purpose. The measurement model of the likelihood function is considered a Gaussian mixture.
runthenight04
0 trang
47 lượt xem
3
47
Summary of Doctor of Accounting thesis: Impacts of budgeting on performance of small and medium enterprises in Vietnam
The thesis's primary research objective is to identify the impacts of budgeting on the performance of Vietnamese SMEs. Specific research objectives include examining the impacts of business budget's different aspects on the performance of Vietnamese SMEs; evaluating the controlling and moderation role of firm size and the mediating role of managerial performance in the relationship between budgeting and business performance of Vietnamese SMEs.
trinhthamhodang1217
129 trang
34 lượt xem
3
34
Doctoral dissertation: Shrinkage estimation of covariance matrix for portfolio selection on Vietnam stock market
The objective of this dissertation is to investigate that whether the investors can improve the performance of minimum – variance optimized portfolios by altering the estimators of covariance matrix input. Besides, based on the results of out – of – sample portfolio performance metrics, the dissertation is going to select the suitable estimators of covariance matrix for portfolio optimization on Vietnam stock market.
mmlemmlem_124
55 trang
28 lượt xem
3
28
Summary of Doctoral dissertation: Shrinkage estimation of covariance matrix for portfolio selection on Vietnam stock market
The research objective of the thesis is to consider how the change of covariance matrix factor will affect the results of portfolio selection and through that to find out whether investors have Is it possible to improve portfolio performance by adjusting the covariance matrix in the optimized model with the smallest variance.
mmlemmlem_124
9 trang
46 lượt xem
2
46
Estimation of genetic variability, heritability and genetic advance in cucumber (Cucumis sativus L.) for yield and its components under protected structure
The present investigation was under taken with the objectives to estimate genetic variability, heritability and genetic advance for yield and yield contributing components of cucumber. The experimental materials for this investigation were fourteen genotypes of cucumber consisting of parthenocarpic, gynoecious and monecious germplasms crossed in line × tester mating design produced thirty three hybrids (F1). Thirty three F1 crosses along with their parents were evaluated in two environments viz. Environment 1 (March-June), Environment 2 (AugustDecember) inside polyhouse for evaluation of their quantitative characters. The genotypes exhibited significant differences for all the traits under study in both environments. The genotypic coefficients of variation and phenotypic coefficients of variation were moderate to high for most of the characters.
angicungduoc6

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