With high flexibility and rich semantic expressiveness, mid-air gesture interaction is an important part of natural human-computer interaction (HCI) and has broad application prospects. However, there is no unified re...
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With high flexibility and rich semantic expressiveness, mid-air gesture interaction is an important part of natural human-computer interaction (HCI) and has broad application prospects. However, there is no unified representation frame for designing, recording, investigating and comparing HCI mid-air gestures. Therefore, this paper proposes an interpretable coding method, DigCode, for HCI mid-air gestures. DigCode converts the unstructured continuous actions into structured discrete string encoding. From the perspective of human cognition and expression, the research employed psychophysical methods to divide gesture actions into discrete intervals, defined the coding rules of representation in letters and numbers, and developed automated programs to enable encoding and decoding by using gesture sensors. The coding method can cover the existing representations of HCI mid-air gestures by considering human understanding and computer recognition and can be applied to HCI mid-air gesture design and gesture library construction.
In the context of building industrialization, the dissemination and transmission of information related to prefabricated building component parts are of paramount importance throughout the building's life cycle an...
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In the context of building industrialization, the dissemination and transmission of information related to prefabricated building component parts are of paramount importance throughout the building's life cycle and the entire industry chain, necessitating high standards of information integration. At present, the development of information coding for prefabricated building component parts in China is hindered by various challenges, such as the lack of uniform norms and standards across different regions, as well as significant differences in the composition and character length of coded information categories. Through reviewing academic papers and society, group, and local standards related to the coding of prefabricated building component parts, this article identifies the importance of component part coding information categories. Considering the readability of codes, a practical coding system is adopted for the coding design, proposing a semi-implicit practical coding method for prefabricated building component parts. This method has strong flexibility and wide applicability. Additionally, a common coding system for component parts is devised to address the issue of missing information caused by the limited characters of component parts codes. This system enables comprehensive life cycle information management of component parts of prefabricated buildings and promotes the application of prefabricated buildings in China.
coding for model of three-dimension design of power transmission and transformation projects is the key to achieve transmission and share of digital design results which act as open semantide among the full lifecycle ...
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ISBN:
(纸本)9781728157047
coding for model of three-dimension design of power transmission and transformation projects is the key to achieve transmission and share of digital design results which act as open semantide among the full lifecycle of project. In domestic power grid industry, various coding systems are different in structure of code and range of application which results in disunity in use. This paper proposes a coding method for three-dimension design of power transmission and transformation projects on account of research on existing coding systems. Moreover, interface technology between coding method of three-dimension digital design and other coding system in power grid industry is discussed. Last but not least, a method to realize software automatic coding for model of three-dimension design is put forward.
This study proposes a method to create a dynamic color hologram by using the coding method. According to the colorimetric principle, a color object can be resolved into three primary color objects. Thus, when we creat...
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ISBN:
(数字)9781510614000
ISBN:
(纸本)9781510614000;9781510613997
This study proposes a method to create a dynamic color hologram by using the coding method. According to the colorimetric principle, a color object can be resolved into three primary color objects. Thus, when we create a dynamic color hologram, we can regard every object as three primary color objects once we obtain the color and three-dimensional coordinate data of the objects. Coordinate data concerning the behavior of the three primary color objects are coded by the relationship between the objects and their hologram images. Therefore, when the three monochromatic holograms are calculated on a plane, they reappear due to conjugate light, and overlap at points in the plane where the color object had been located. Three line-monochromatic Fresnel holograms with stereoscopic image pairs are then computed according to the theory of light propagation and the relationship between object and image. The overlapping images experience interference due to the reference light to form a dynamic color hologram. Experiments showed that the proposed method can simplify the creation of high-quality dynamic color histograms.
The measurement of two-dimensional displacement is an essential aspect of ultra-precision manufacturing and product design. This paper introduces an innovative method that uses a four-reader probe and a group of check...
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The measurement of two-dimensional displacement is an essential aspect of ultra-precision manufacturing and product design. This paper introduces an innovative method that uses a four-reader probe and a group of check codes to achieve digital synchronous measurement of translational and rotational displacement. The measuring principle and two-dimensional coding method are modelled first, and several reader-code combinations are proposed. And then, the study conducts numerical simulations to investigate the effect of different factors on measurement accuracies, such as check code size, machining tolerance, and reader resolution, and the method's accuracy and performance are evaluated based on the error distribution to determine the optimal system parameters for various applications. A specialized lab experiment is conducted to validate the accuracy and reliability of the proposed method. In conclusion, the proposed method is innovative and practical, which realizes the synchronous measurement of two-dimensional in-plane displacement instead of a simple combination of two one-dimensional sensors.
With the continuous development of Web service composition, many services with the same or similar functions but different non-functional attributes have emerged. How to meet the user's demand for quality of servi...
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With the continuous development of Web service composition, many services with the same or similar functions but different non-functional attributes have emerged. How to meet the user's demand for quality of service (QoS) is a challenging topic when selecting services. Aiming at the problem of service composition optimization, a genetic algorithm for Web service selection based on QoS perception is proposed. When this method is used to find the optimal composition of a service, in order to improve the efficiency of the solution, several candidate services are selected for each abstract service, which greatly reduces the size of the solution space. Then, the genetic algorithm is used to solve this nonlinear programming problem. The experimental results show that this method has better execution efficiency and fitness, and the path is templated to reduce the number of service groups The chromosome coding method is used to solve the problem of multi-path selection. Through the simulation experiment, Compared with the traditional algorithm, when the genetic algebra is more than 300 and the number of candidate services is more than 60, the proposed algorithm converges faster and the fitness of the optimal solution is higher.
Firstly, with ArcGIS software, three pixel coding methods, including Rule of Cell Center (RCC), Rule of Maximum Area (RMA) and Rule of Maximum Combined Area (RMCA), were used to rasterize 1:100,000 land use vector dat...
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ISBN:
(纸本)9781450389341
Firstly, with ArcGIS software, three pixel coding methods, including Rule of Cell Center (RCC), Rule of Maximum Area (RMA) and Rule of Maximum Combined Area (RMCA), were used to rasterize 1:100,000 land use vector data of Beijing-Tianjin-Hebei Region in 2018 into 13 resolutions from 50m to 6km. Then, the accuracy loss of the rasterized data products, which were generated with RCC, RMA and RMCA respectively, was calculated with Weighted Average method (WAM). Finally, Mechanisms of errors for the three coding methods were explored. The results showed that: (a) as a whole, RCC has the best accuracy, followed by RMCA, and RMA has the largest error. (b) The accuracy loss withWAM is actually the loss of data on the boundary of the whole study area. (c) There is a definite correlation between the area accuracy loss of the rasterized area and proportion of grid cells reserved on the boundary line of the study area: the closer the proportion is to 1/2, the smaller the area accuracy loss is, and vice versa. (d) Values of rasterization errors depend on probability of grid cells reserved on the boundary line of vector data. The probability for RCC is 1/2, minimum for RMA and in the middle for RMCA.
At present, many production companies have problems such as long non-processing time of production lines, difficulty in scheduling of each station, and low utilization of production resources. This article takes the p...
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ISBN:
(数字)9781728143903
ISBN:
(纸本)9781728143903
At present, many production companies have problems such as long non-processing time of production lines, difficulty in scheduling of each station, and low utilization of production resources. This article takes the production data of auto parts after-sales company as an example, puts forward the production resource scheduling problem of the flexible parts workshop of auto parts, and uses and improves the genetic algorithm to solve the problem. The two coding methods two-dimensional matrix-based machine coding and the machine process segmented coding are compared. The evolution reversal operation was added to improve the local search ability of the genetic algorithm, so that each generation of the algorithm can inherit more genes from the parent. This paper uses MATLAB to process the data and simulate the scheduling results, which proves the feasibility and effectiveness of the algorithm.
Firstly,with ArcGIS software,three pixel coding methods,including Rule of Cell Center(RCC),Rule of Maximum Area(RMA) and Rule of Maximum Combined Area(RMCA),were used to rasterize 1:100,000 land use vector data of Bei...
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Firstly,with ArcGIS software,three pixel coding methods,including Rule of Cell Center(RCC),Rule of Maximum Area(RMA) and Rule of Maximum Combined Area(RMCA),were used to rasterize 1:100,000 land use vector data of Beijing-Tianjin-Hebei Region in2018 into 13 resolutions from 50 m to 6 ***,the accuracy loss of the rasterized data products,which were generated with RCC,RMA and RMCA respectively,was calculated with Weighted Average method(WAM).Finally,Mechanisms of errors for the three coding methods were *** results showed that:(a) as a whole,RCC has the best accuracy,followed by RMCA,and RMA has the largest error.(b) The accuracy loss with WAM is actually the loss of data on the boundary of the whole study area.(c) There is a definite correlation between the area accuracy loss of the rasterized area and proportion of grid cells reserved on the boundary line of the study area:the closer the proportion is to 1/2,the smaller the area accuracy loss is,and vice versa.(d) Values of rasterization errors depend on probability of grid cells reserved on the boundary line of vector *** probability for RCC is 1/2,minimum for RMA and in the middle for RMCA.
The Servqual model (Parasuraman et al. in J Mark 49(4):41–50, 1985;J Retail 64:12–40, 1988) involves a set of five dimensions ranked as the most important for service quality: tangibility, reliability, responsivenes...
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