Neuron Net for Forming Optimal Smooth Trajectories Based on Bezier Splines

2017 ◽  
Vol 865 ◽  
pp. 442-449
Author(s):  
Dmitry Yukhimets
Keyword(s):  
Computational Complexity ◽  
Real Time ◽  
Optimal Selection ◽  
Third Order ◽  
The Third ◽  
Maximal Speed ◽  
Minimal Curvature ◽  
Selection Of

In this paper, the problem of planning smooth trajectories of mechatronic objects on the basis of Bezier splines of the third order with a minimal curvature is solved. Using such trajectories provides the maximal speed of movement for mechatronic objects. The neuron net, which approximates the function of the optimal selection of spline parameters is proposed to solve this problem. The advantage of the proposed approach is its lack of computational complexity, which allows its use in most on-board computers in real time.

scholarly journals Kinship terminology in the Tamiang language: A Malay variety spoken in Eastern Aceh, Indonesia

2020 ◽  
Vol 7 (2) ◽  
pp. 642-656
Author(s):  
Zulfadli A. Aziz ◽  
Masrizal Mahmud ◽  
Maya Safhida
Keyword(s):  
Speech Community ◽  
Third Order ◽  
Vertical Relationships ◽  
The Third ◽  
Role Relationship ◽  
The People ◽  
Aceh Province ◽  
Kinship Terminology ◽  
Relationship Of ◽  
Selection Of

This qualitative research examines kinship terms in the Tamiang language and the strategies of selection of the terms by its speakers. The data for this research were obtained through questionnaire, and interview from eight informants living in Bendahara Sub-District, Kejuruan Muda Sub-District, Karang Baru Sub-District, and Seruway Sub-District, Aceh Tamiang Regency, the Aceh Province. Observation was also done on the use of some of the kinship terms directly by the people in the speech community. This observation took place while the authors were socializing with the speakers in the research location. The results showed that the kinship terms in the Tamiang language are based on consanguinity and affinity. The kinship terms in the language also refer to birth order. Then, the strategies of the selection of kinship terms in the Tamiang language are based on kinship, age, gender, and descent, especially in terms of a speech event. Viewed role relationships, the terms addressed to men/women in the third layer of vertical relationships are not different. The horizontal relationship indicating the position of siblings and wife/husband is equal. The horizontal role relationship of cousins in the Tamiang language is limited to the third order. This study is very urgent since the study on kinship terms in the Tamiang language has not been conducted comprehensively before. Complete terms used to address family members in the Tamiang language are provided in this study, and it can be one of the resources for further research in the same field of study. 

scholarly journals A Crossing-Sensitive Third-Order Factorization for Dependency Parsing

2014 ◽  
Vol 2 ◽  
pp. 41-54 ◽  
Author(s):  
Emily Pitler
Keyword(s):  
Computational Complexity ◽  
Model Structure ◽  
Dependency Parsing ◽  
Third Order ◽  
The Third ◽  
Output Structure ◽  
Run Time ◽  
Multiple Edges

Parsers that parametrize over wider scopes are generally more accurate than edge-factored models. For graph-based non-projective parsers, wider factorizations have so far implied large increases in the computational complexity of the parsing problem. This paper introduces a “crossing-sensitive” generalization of a third-order factorization that trades off complexity in the model structure (i.e., scoring with features over multiple edges) with complexity in the output structure (i.e., producing crossing edges). Under this model, the optimal 1-Endpoint-Crossing tree can be found in O( n4) time, matching the asymptotic run-time of both the third-order projective parser and the edge-factored 1-Endpoint-Crossing parser. The crossing-sensitive third-order parser is significantly more accurate than the third-order projective parser under many experimental settings and significantly less accurate on none.

Metop-C deployment and start of three-satellite operations

2020 ◽  
Vol 124 (1276) ◽  
pp. 902-916
Author(s):  
P.L. Righetti ◽  
J.M. de Juana Gamo ◽  
F. Sancho
Keyword(s):  
Real Time ◽  
Fuel Management ◽  
Time Data ◽  
International Agencies ◽  
The Third ◽  
Mission Duration ◽  
Operational Life ◽  
Real Time Data ◽  
Space Segment ◽  
Selection Of

ABSTRACTMetop is the space segment of the EUMETSAT Polar System (EPS), which provides real-time data to several European meteorological services as well as to the National Oceanic and Atmospheric Administration (NOAA) and other international agencies. The third Metop satellite, Metop-C, was launched on 7 November 2018 and shall enter in operations in few months, once the on-going commissioning of the meteorological products is completed. Each Metop satellite was designed to operate at least five years. A sequential deployment of the satellites was foreseen to achieve the target mission duration of 15 years, replacing an old one at end of life with a newer one; thanks to the excellent performances of the launchers and of the platform itself, and to continuous improvements to the fuel management, it was possible to extend the operational life of each satellite by a factor of three, still maintaining enough fuel to perform safe de-orbiting operations (foreseen for Metop-A, launched in 2006, at the end of 2021). This provided the opportunity to develop in 2012 (after Metop-B launch) dual-satellite products, which now, with the arrival of Metop-C, can evolve to tri-satellite; several decisions, concerning the selection of launch date and time as well as commissioning and operational locations, had to be been taken to achieve the target configuration; the analyses leading to these decisions are discussed here.

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