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2022 ◽  
Vol 41 (1) ◽  
pp. 1-21
Chems-Eddine Himeur ◽  
Thibault Lejemble ◽  
Thomas Pellegrini ◽  
Mathias Paulin ◽  
Loic Barthe ◽  

In recent years, Convolutional Neural Networks (CNN) have proven to be efficient analysis tools for processing point clouds, e.g., for reconstruction, segmentation, and classification. In this article, we focus on the classification of edges in point clouds, where both edges and their surrounding are described. We propose a new parameterization adding to each point a set of differential information on its surrounding shape reconstructed at different scales. These parameters, stored in a Scale-Space Matrix (SSM) , provide a well-suited information from which an adequate neural network can learn the description of edges and use it to efficiently detect them in acquired point clouds. After successfully applying a multi-scale CNN on SSMs for the efficient classification of edges and their neighborhood, we propose a new lightweight neural network architecture outperforming the CNN in learning time, processing time, and classification capabilities. Our architecture is compact, requires small learning sets, is very fast to train, and classifies millions of points in seconds.


The aim of the paper is to explore non-local reverse-space matrix non-linear Schrödinger equations and their inverse scattering transforms. Riemann–Hilbert problems are formulated to analyse the inverse scattering problems, and the Sokhotski–Plemelj formula is used to determine Gelfand–Levitan–Marchenko-type integral equations for generalised matrix Jost solutions. Soliton solutions are constructed through the reflectionless transforms associated with poles of the Riemann–Hilbert problems.

2021 ◽  
Vol 2 (2) ◽  
pp. 07-16
Imbuh Rochmad ◽  
Isdaryanto Iskandar

XXX is one of the pioneers and market leaders of building materials companies in Indonesia. Looking at the performance over the last five years PT. XXX is experiencing a decline in production capacity, although judging from the market share its products are still quite attractive to customers. This means that PT. XXX failed to grow its business even in an effort to maintain it, while the building materials industry continued to grow. The problem is how this can happen and what steps a company must take to return its business conditions for the better. The purpose of this study is to get an overview of the strategic aspects of the company with the SPACE Matrix Model and its dimensions including; financial strength, competitive advantage, industrial-strength, and environmental stability. By calculating the average value of each aspect, then the result is used to determine the position of PT. XXX in the SPACE Matrix. Based on the results of the study, the strategic position of PT. XXX is in the Competitive Quadrant. Therefore, the recommended strategy is integration strategy, intensive strategy, or collaboration (joint venture). By using the recommended strategy, it is hoped that PT.XXX will be able to restore its business viability and return to being the market leader in building materials products.

Apple Inc. is a famous information technology firm in the global market. The organization has a wide range of products which consists of MacBook, iPhones, Apple TV, iPad and Apple watch. In this era of globalization with technologies, Apple’s users seek for unique performance products that are aesthetically pleasing as well as emphasize good product qualities. In 1976, Apple was established by Steve Jobs and his partners to develop modern technology products. In order to assess Apple’s strategic capabilities, Osterwalder’s Business Model Canvas is applied in this case study. There is several competitive analysis tools are written in this article including Internal Factor and External Factor Evaluation matrix, SWOT and SPACE Matrix, Boston Consulting Group (BCG) analysis as well as Internal-external (IE) analysis to evaluate Apple’s competitive intelligence. Throughout the report, every component in the evaluation model reflects the direction of how Apple overcomes the hurdles and how Apple could benefit by expanding their business in the international market. Lastly, Sun Zi’s Art of War is also being studied and included into business strategies of Apple. Keywords: Apple, Osterwalder, Factor Evaluation Matrix, SWOT, SPACE Matrix, Internal-external Analysis, Sun Zi’s Art of War

2021 ◽  
Vol 11 (19) ◽  
pp. 8826
Seong-Geun Kwon ◽  
Oh-Jun Kwon ◽  
Ki-Ryong Kwon ◽  
Suk-Hwan Lee

In this paper, we address a system that can accurately locate and monitor work tools in a complex assembly process, such as automotive production. Our positioning monitoring system is positioned by a combined sensor of the UWB module and the MEMS IMU (inertial measuring unit) sensor based on the extended Kalman filter. The MEMS IMU sensor provides the positioning calibration information. The proposed method incorporates IMU and UWB positioning to compensate for errors that can only occur in UWB positioning through the extended Kalman filter (EKT). This EKT is improved by the error dynamic equation derived from the sparse state-space matrix. Also, the proposed method computes the transmission time and distance between the tag and anchor of the UWB module by the TWR (two-way range) system. The tag of a mobile node, which is attached to a moving tool, measures the position of the work tool and transmits the position coordinate data to the anchor. Here, the proposed method uses the trilateration localization method by the confidence distance compensation to prevent the distance error by obstacles and changes in the indoor environment. Experimental results verified that the proposed method confirms whether a specific tool is accurately used according to the prescribed regulations and has more positioning accuracy than the conventional methods.

2021 ◽  
Vol 19 ◽  
pp. 160-165
Luis Sainz ◽  
Ll Monjo ◽  

Photovoltaic power generation systems are one of the main renewable power sources, and quasi-Z-source inverters are becoming powerful devices to integrate these systems in AC grids. However, stability issues due to the damping behaviour of converters must be considered. There are several studies in this direction but instability concerns are not completely solved yet. This paper contributes with a procedure for the stability assessment of photovoltaic power generation systems with quasiZ-source inverters in the frequency domain. The study is based on the small-signal averaged model of the system expressed in the s-domain and the stability criterion derived from the frequency characteristics of the state-space matrix. The influence of the photovoltaic power generation system operating point on stability is studied by the proposed procedure. Eigenvalue analysis and PSCAD/EMTDC simulations are also performed to validate the obtained results.

2021 ◽  
Vol 9 (1) ◽  
pp. 21-37
Karil - Maulita

Ministry of Industry assesses that the processing industry is still consistently contributing the most to the achievement of export value national. There are manufacturing industry sectors that have achieved low scores on the contribution of export value. Namely the apparel industry, wood industry, and industrial furniture. There are obstacles and problems for the three industries to increase export value. The problem is the low competitiveness of the three industries in exporting. This study aims to analyze and see the condition of the competitiveness of the Small and Medium Creative Industry in the KI Jakarta based on exports from the supply-side analysis. This research is qualitative research using interview and survey methods. The samples of this research were Furniture / Furniture IKM, Batik IKM, and Handicraft IKM which succeeded in contributing the export contribution value to IKM. The results of this study indicate that the conditions of the three creative SMIs in Jakarta have different capabilities and strategies in contributing to export value. Based on the results of the SWOT and SPACE matrix analysis, a special strategy is needed to increase competitiveness. Among them, the right strategies are Furniture IKM and Handicraft IKM located in the quadrant size “aggressive” which indicates that the Furniture IKM in DKI Jakarta is in a very good position in using its internal strength. Therefore, the strategies suitable for use by IKM Furniture in DKI Jakarta include market penetration strategy, market development, product development, backward integration, forward integration, horizontal integration, or diversification. Meanwhile, IKM Batik is in the quadrant position “Conservative” which indicates that IKM Batik is in a low or weak competitive position and must improve the company's strategic position to have strong competitiveness

Rahmayanti Tumanggor ◽  
Wiyanto Wiyanto

This aims of the study is to analyze the evaluation of innovation successful of by data application system at modern beverage MSMEs (Ngombe) in South Tangerang City. Also to find out influence and benefits of using by data application system to increase sales of modern beverages. Alsoto know how the “by data” application system can help modern beverage business entrepreneursto achieve significant sales and to provide economic benefits.The method used in this study was descriptive analysis of qualitative method. The analysis technique uses observation, interview, documentation, forum group discussion and triangulation. The analysis data method was inductive that based on the accumulation of data, then developed in to hypothesis by organize the data in to category, outline into units, do synthesis, compile in to the pattern to get the conclusion. Based on the SWOT analysis, the EFI and EFE calculations obtained the EFI score of 3.65, meaning that the business has a good internal strength position. While the EFE score is 3.30 indicating that external factors are sufficient to support the business. By using the SPACE matrix, Ngombe is in quadrant III, which is an aggressive condition. The conclusion is that implementation of by data application system gives ease in the service to consumers and provides significant advantage to the owner. Abstrak Penelitian ini bertujuan untuk menganalisis evaluasi keberhasilan inovasi sistem aplikasi by data pada UKM minuman kekinian (Ngombe) di Kota Tangerang Selatan. Juga untuk mengetahui pengaruh dan manfaat penggunaan sistem aplikasi by data terhadap peningkatan penjualan minuman kekinian. Bagaimana sistem aplikasi ‘by data” dapat membantu para pelaku usaha minuman kekinian dalam mengembangkan usahanya sehingga tercapai penjualan yang cukup signifikan dan memberi keuntungan ekonomis Metode penelitian yang digunakan adalah kualitatif yang bersifat analisis deskriptif.Teknik pengumpulan data adalah observasi, wawancara, dokumentasi, FGD dan triangulasi. Metode analisis data bersifat induktif, dikembangkan menjadi hipotesis, mengorganisasikan data ke dalam kategori, menjabarkan ke dalam unit-unit, melakukan sintesa, menyusun ke dalam pola, sehingga mendapatkan satu kesimpulan. Hasil penelitian berdasarkan analisis SWOT perhitunganan EFI dan EFE nilai skor tertimbang EFI sebesar 3.65, artinya usaha yang dikembangkan memiliki posisi kekuatan internal baik. Sedangkan skor tertimbang EFE diperoleh nilai 3,30 mengindikasikan bahwa faktor eksternal cukup mendukung usaha yang dilakukan. Denganmenggunakanmatrik SPACE,usaha Minuman Ngombe berada padaposisi kuadran III yaitu kondisi agresif.Kesimpulannya bahwa minuman kekinian yang menggunakan sistem aplikasi‘by data’memberikan kemudahan dalam penjualan, juga memberikan keuntungan yang signifikan bagi pemiliknya.   Kata Kunci:Produk, Profit, Inovasi, Sistem Aplikasi by data

Proceedings ◽  
2021 ◽  
Vol 74 (1) ◽  
pp. 9
Birgul Kutlu ◽  
Yeliz Gunal Aggul ◽  
Idil Atasu ◽  
Zeynep Kaymaz

This meta-analysis examines the studies on groupware published between the years 2010 and 2020. Descriptive analysis was conducted to determine the distribution of studies in terms of publication year, time–space matrix category, targeted sectors, research methods, and the academic field of the journals that published these studies. Although groupware played a significant role in communication, collaboration, and coordination of users in various collaborative work conditions and sectors, the majority of studies focused on asynchronous and distributed collaborative work environments in the software engineering field, and the research method preferred was design science.

Svetlana Morkovina ◽  
S. Voronina ◽  
A. Voykova

The article discusses the methods of strategic analysis used in analytical practice. It was found that there is no unified methodology for conducting a strategic analysis of the development of an organization, the plurality of existing methods and techniques will not allow a priori to give preference to one of them. The four most used in strategic analysis methods of SWOT analysis, PEST analysis, SNW analysis and industry analysis according to M. Porter's model of five forces, as well as matrix analysis methods, the most popular of which are the BCG matrix, the SPACE matrix, the ICC matrix, Matrix Shel. Comparative analysis of the methods of strategic analysis of the organization on the basis of highlighting their advantages and disadvantages, showed that each of them has a number of advantages, but is not devoid of visible disadvantages. To prioritize and form practice-oriented techniques, expert assessments and their ranking were carried out on the principles of simplicity of the technique, the complexity of conclusions, the scale of application and the complexity of development and application. It was found that SWOT analysis and PEST analysis methods, mission matrix and key competencies are most consistent with the principles of simplicity in implementation, complexity, universality and reliability of assessing the strategic development of an organization. It is advisable to use these methods as analytical tools in planning and managing the strategic development of an organization.

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