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First-class variability modeling in Matlab/Simulink

Arne Haber, Carsten Kolassa, Peter Manhart, Pedram Mir Seyed Nazari, Bernhard Rumpe, Ina Schaefer
2013 Proceedings of the Seventh International Workshop on Variability Modelling of Software-intensive Systems - VaMoS '13  
A functional variant is described by a delta encapsulating a set of modifications. A sequence of deltas can be applied to a core product to derive the desired variant.  ...  To counter these problems, we propose a modular variability modeling approach for Matlab/Simulink based on the concept of delta modeling [8, 9, 24].  ...  The main idea of delta modeling is to describe a set of variable systems by a designated core model and a set of deltas that specify modifications to the core system to obtain other product variants.  ... 
doi:10.1145/2430502.2430508 dblp:conf/vamos/HaberKMNRS13 fatcat:h6f2omp5cnaylodh7yk73ofdlm

Design and Performance of Modular 3-D Printed Solid-Propellant Rocket Airframes

Rachel Hernandez, Harpreet Singh, Sherri Messimer, Albert Patterson
2017 Aerospace (Basel)  
Altitude and 3-axis stability was measured during the eight flights via an onboard instrument package.  ...  The new method replaces the use of standard part subsystems with complex multi-function parts to improve customization, design flexibility, performance, and reliability.  ...  Hernandez led the effort to complete background research and digital models for 3-D printing and assisted with experimental design and experiment execution.  ... 
doi:10.3390/aerospace4020017 fatcat:7j5v4qshh5addb5sbh7yov6qee

Weak Interactions Based System Partitioning Using Integer Linear Programming

Romain Guicherd, Paul A. Trodden, Andrew R. Mills, Visakan Kadirkamanathan
2017 IFAC-PapersOnLine  
In order to partition a system model, one has to know what states and inputs to group together to define subsystem models.  ...  Therefore, the partitioning problem seeking for weak interactions can be posed as a minimization problem.  ...  Every subsystem model is defined by a set of states and inputs. The weak interaction partitioning problem consist of defining these sets in order to minimize the coupling between subsystem models.  ... 
doi:10.1016/j.ifacol.2017.08.709 fatcat:jb2hjft3gffstdzqeoru4rra6q

On the Coupling and Coordination Development between Environment and Economy: A Case Study in the Yangtze River Delta of China

Menghua Deng, Junfei Chen, Feifei Tao, Jiulong Zhu, Min Wang
2022 International Journal of Environmental Research and Public Health  
concentration of PM2.5 in the environmental subsystem were the most influencing factors of DCC in the Yangtze River Delta.  ...  The value of DCC in the western region was significantly lower than that of the eastern cities. (3) The influencing factors results showed that the GDP in the economic subsystem and the annual average  ...  ( 2 ) 2 Establish the environment and economy coupling and coordination development index system (EECCIS) based on the mechanism of CC2E. (3) Calculate the comprehensive development level of subsystems  ... 
doi:10.3390/ijerph19010586 pmid:35010852 pmcid:PMC8744936 fatcat:djkng4nxffcxhpxvi3mhmewk5i

Secondary Frequency Control In Power Systems With Arbitrary Communication Delays

Filip J. Koerts, Arjan van der Schaft, Claudio De Persis
2021 SIAM Journal of Control and Optimization  
We will refer to (2.11) as the delayed system. We pose the following assumption on the initial condition \phi without any loss of generality. Assumption 2.1.  ...  P net 0 = \left( 7 We set the rated machine power for generators 1 and 2 to 9 pu, and for generators 3 and 4 to 7 pu.  ...  H(x t ) \leq 0 and nonnegativity of (1) the Bregman distance d(\eta ), (2) the quadratic terms of \omega and \Delta \xi in S(x t (0)), and (3) V (x t ), both \| \omega \| and \| \xi \| are bounded by some  ... 
doi:10.1137/19m1271154 fatcat:tmjswszv55eqtpmqvoujw7xfzq

Globalization by chunking: a quantitative approach

A. Mockus, D.M. Weiss
2001 IEEE Software  
Acknowledgments We thank the many software developers at Lucent who have assiduously used the configuration control systems that provided us with the data we needed to perform this and other studies.  ...  Figure 3 . 3 Learning curve.  ...  Usually, such systems associate a list of deltas with each MR.  ... 
doi:10.1109/52.914737 fatcat:hmtmz2ynyzetxirqwcrybxmtdi

Weak asymptotics of wave function for N-particle system and asymptotic filtering [article]

S.L. Yakovlev
2020 arXiv   pre-print
Asymptotic representations for large values of the hyperradius are constructed for the scattering wave function of a system of N particles considered as a generalized function of angular variable coordinates  ...  Case N = 3 For N = 3, only partitions of the type a 2 into two subsystems are nontrivial, consisting of a pair of particles in one subsystem and a third particle: a 2 = {(ij)k}, and the chains A 2 consist  ...  where δ(k 1 ,k 2 ) is the delta function on a unit sphere S 2 .  ... 
arXiv:2010.05319v1 fatcat:rpziqo4nvjaubd5235ksbzu5rm

Developing a speaker identification system for the DARPA RATS project

Oldrich Plchot, Spyros Matsoukas, Pavel Matejka, Najim Dehak, Jeff Ma, S. Cumani, O. Glembek, H. Hermansky, S.H. Mallidi, N. Mesgarani, R. Schwartz, M. Soufifar (+4 others)
2013 2013 IEEE International Conference on Acoustics, Speech and Signal Processing  
state of the art detection capabilities on audio from highly degraded communication channels.  ...  audio, and (c) fusion of multiple systems provides 24% relative improvement in EER compared to the single best system when using a novel SVM-based fusion algorithm that uses side information such as gender  ...  Subsystems using various VADs and feature front-ends. Results (%) are given on our DEV set 30-30 test-enroll condition. System 9 uses VAD1, but with denoised audio based on VAD3.Table 2.  ... 
doi:10.1109/icassp.2013.6638972 dblp:conf/icassp/PlchotMMDMCGHMMSSTTZZ13 fatcat:gtte5fnphfhbjayhkigxjr55mq

A proof assistant for PSF [chapter]

S. Mauw, G. J. Veltink
1992 Lecture Notes in Computer Science  
A description of a tool to support computer-aided construction of proofs for parallel systems is given.  ...  In contrast to the conventional approach based on state space exploration, we use an axiomatic approach. The axioms we use for the construction of proofs, are based on ACP.  ...  The authors would like to thank Bob Diertens for his practical work on the proof assistant and Ben Thompson for proofreading this paper and suggesting several improvements.  ... 
doi:10.1007/3-540-55179-4_16 fatcat:af6kuuxd6rcn3djutc2d3xeeqm

A Multimodal Technique for an Embedded Fingerprint Recognizer in Mobile Payment Systems

V. Conti, C. Militello, F. Sorbello, S. Vitabile
2009 Mobile Information Systems  
To strengthen the security level of electronic payment systems, an embedded hardware prototype has been also created: acting as self-contained sensors, it performs the entire authentication process on  ...  the same device, so that all critical information (e.g. biometric data, account transactions and cryptographic keys), are managed and stored inside the sensor, without any data transmission.  ...  However, if no singularity points are extracted, the template matching algorithm will be performed on the set of extracted minutiae without the registration step and without considerable reduction of the  ... 
doi:10.1155/2009/284124 fatcat:34wovrlq5fb2rmjl3xv4l6i4ia

Mean-field solution of the weak-strong cluster problem for quantum annealing with stoquastic and non-stoquastic catalysts [article]

Kabuki Takada, Yu Yamashiro, Hidetoshi Nishimori
2019 arXiv   pre-print
We further analyze how inhomogeneous driving of the transverse field affects the performance of the system without XX interactions and find that inhomogeneity in the transverse field removes the first-order  ...  The results again depend on where to introduce the XX interactions.  ...  On the other hand, there is no transition for −5 ξ −3.  ... 
arXiv:1912.09189v1 fatcat:tgyb5h5eyfbllna3shubtfcmla

Multi-label bird classification using an ensemble classifier with simple features

Yi Ren Leng, Huy Dat Tran
2014 Signal and Information Processing Association Annual Summit and Conference (APSIPA), 2014 Asia-Pacific  
The Python subsystem combines a large ensemble of different classifiers with different subsets of the features while the Matlab subsystem is an ensemble of the Random Forest and Linear Discriminant Analysis  ...  By combining this disparate set of features and classifiers, we managed to achieve a Mean Average Precision (MAP) score that is far superior to what is possible with any single classifier.  ...  The combined system is found to improve on the Python subsystem score slightly despite the poor performance of the Matlab subsystem.  ... 
doi:10.1109/apsipa.2014.7041649 dblp:conf/apsipa/LengD14 fatcat:dhmccnekv5hjfini6arcgv3eia

Using sigma-delta quantizer Based PI for inductive power transfer systems

Dhafer J. Almakhles, Akshya Swain, Hou Yuefeng
2020 International Journal of Power Electronics and Drive Systems (IJPEDS)  
<p>In this paper, a Sigma-Delta Quantizer (∑∆-Q) based Proportional and Integral control is proposed for a wireless power transfer control system, namely inductive power transfer system.  ...  Both control systems exhibit almost identical responses.  ...  3 .  ... 
doi:10.11591/ijpeds.v11.i3.pp1449-1458 fatcat:ffrf5bh7qnf2hffttfdjmhyl7q

A Simple Estimation of Coupling Loss Factors for Two Flexible Subsystems Connected via Discrete Interfaces

Jun Zhang, Lin Ji, Zhenyu Huang, Pingping Zhang, Wei Wang
2016 Shock and Vibration  
subsystem mode sets.  ...  Meanwhile, the approach allows the weak coupling region between the two SEA subsystems to be distinguished simply and explicitly.  ...  Figure 3 : 3 Two plates connected via discrete points. 4. 1 . 1 System Model Description. In Figure 3, both plates 1 and 2 are rectangular with simply supported edges.  ... 
doi:10.1155/2016/3636401 fatcat:nepgmhoqsbbstdkarjajgqvh74

Ultimate conversion efficiency bound for the forward double-Λ atom-light coupling scheme

Dionisis Stefanatos, Athanasios Smponias, Emmanuel Paspalakis, Hamidreza Hamedi
2020 Optics Letters  
Λ-subsystems, the forward propagation of the probe and signal fields is described by the same set of equations.  ...  We show that for the two widely used configurations of the double-Λ atom-light coupling scheme, one where the control fields are applied in the same Λ-subsystem and another where they applied in different  ...  for the full Maxwell-Bloch set of equations (without the weak loss assumption ρ 11 ≈ 1).  ... 
doi:10.1364/ol.404173 fatcat:oym7hv45sjc2da6iq73wylhqpa
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