scholarly journals On the Synthesis of Guaranteed-Quality Plans for Robot Fleets in Logistics Scenarios via Optimization Modulo Theories

2017 ◽  
Author(s):  
Francesco Leofante ◽  
Erika Abraham ◽  
Tim Niemueller ◽  
Gerhard Lakemeyer ◽  
Armando Tacchella
Keyword(s):  
Guaranteed Quality ◽  
Optimization Modulo Theories

scholarly journals Cable tree wiring - benchmarking solvers on a real-world scheduling problem with a variety of precedence constraints

Constraints ◽  
2021 ◽  
Author(s):  
Jana Koehler ◽  
Josef Bürgler ◽  
Urs Fontana ◽  
Etienne Fux ◽  
Florian Herzog ◽  
...  
Keyword(s):  
State Of The Art ◽  
Precedence Constraints ◽  
Traveling Salesman ◽  
Mixed Integer ◽  
Automated Manufacturing ◽  
Scheduling Problem ◽  
Tasks Scheduling ◽  
Optimization Modulo Theories ◽  
Coupled Tasks ◽  
Np Hardness

AbstractCable trees are used in industrial products to transmit energy and information between different product parts. To this date, they are mostly assembled by humans and only few automated manufacturing solutions exist using complex robotic machines. For these machines, the wiring plan has to be translated into a wiring sequence of cable plugging operations to be followed by the machine. In this paper, we study and formalize the problem of deriving the optimal wiring sequence for a given layout of a cable tree. We summarize our investigations to model this cable tree wiring problem (CTW). as a traveling salesman problem with atomic, soft atomic, and disjunctive precedence constraints as well as tour-dependent edge costs such that it can be solved by state-of-the-art constraint programming (CP), Optimization Modulo Theories (OMT), and mixed-integer programming (MIP). solvers. It is further shown, how the CTW problem can be viewed as a soft version of the coupled tasks scheduling problem. We discuss various modeling variants for the problem, prove its NP-hardness, and empirically compare CP, OMT, and MIP solvers on a benchmark set of 278 instances. The complete benchmark set with all models and instance data is available on github and was included in the MiniZinc challenge 2020.

Guaranteed-quality higher-order triangular meshing of 2D domains

2021 ◽  
Vol 40 (4) ◽  
pp. 1-14
Author(s):  
Manish Mandad ◽  
Marcel Campen
Keyword(s):  
Higher Order ◽  
Guaranteed Quality

scholarly journals Limiting Vibroisolation Control of an Oscillating String on a Moving Base

1995 ◽  
Vol 2 (2) ◽  
pp. 163-171 ◽  
Author(s):  
Dmitry V. Balandin
Keyword(s):  
Solution Method ◽  
Solution Technique ◽  
Quadratic Functional ◽  
Numerical Example ◽  
Guaranteed Quality ◽  
Moving Base ◽  
Elastic Object

The vibroisolating capability of an elastic object that is assumed to be protected against a class of excitations is studied. It is proposed that this capability be estimated by a quadratic functional. The solution method gives an estimate of the optimal isolation with a criterion of minimum guaranteed quality. A numerical example of the solution technique is presented.

scholarly journals INFRASTRUCTURE SUPPORT FOR THE REQUIREMENTS OF PERSONS WITH DISABILITIES IN THE MARKET OF MEDICAL SERVICES OF UKRAINE

2017 ◽  
pp. 321-329 ◽  
Author(s):  
Inna Gryshova ◽  
Tetiana Shestakovska
Keyword(s):  
Systematic Approach ◽  
Individual Characteristics ◽  
Medical Services ◽  
Quality Level ◽  
Economic Potential ◽  
Public And Private ◽  
Persons With Disabilities ◽  
Medical Sector ◽  
Infrastructure Provision ◽  
Guaranteed Quality

The study of the peculiarities of the infrastructure provision of persons with disabilities in the market of medical services is considered in the article. It has been identified that the state of the infrastructure of the domestic healthcare market is characterized by the provision of medical services for people with disabilities. Every year it decreases due to the reduction of public financing of the medical sector, the inefficient use of budgetary funds, and the imperfection of national legislation, which regulates the functioning of this market. The financial resource and economic potential of the country are not able to meet the needs of persons with disabilities in medical care at a state-guaranteed quality level, especially, despite the rapid increase in the number of persons with disabilities. The factors, which influence the infrastructure provision of persons with disabilities in the market of medical services, are determined. The necessity to develop forms of public and private partnership in this area is grounded. The preconditions for forming the system of infrastructure provision of persons with disabilities in the market of medical services are defined. They are considered as a complex of organizational and economic instruments. This complex aims to expand the opportunities for persons with disabilities, taking into account their individual characteristics. The success of functioning of the whole system of social and economic provision of persons with disabilities and of the separate components of this system mostly depends on the complex and systematic approach to its institutional regulation.

scholarly journals A Review of Factors Affecting Consumer Behavior towards Online Shopping

2018 ◽  
Vol 8 (4) ◽  
Author(s):  
Roopjot Kochar ◽  
Harmanjot Kaur
Keyword(s):  
Consumer Behavior ◽  
Online Shopping ◽  
Web Browser ◽  
Factors Affecting ◽  
Privacy Concerns ◽  
Goods And Services ◽  
Factors Influencing ◽  
Guaranteed Quality ◽  
Specific Factors ◽  
Fierce Competition

Online shopping is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser. Online shopping provides a good example of business revolution. Ecommerce has made life Simple and innovative of individual and groups. Consumer behavior on online shopping is different from physical market where he/she has access to see the products online shopping sites are fast replacing traditional or physical shops. Over, the years the trust of the customers for online shopping sites has increased considerably. The increase in the number of these sites on one hand has led to a fierce competition which means better and cheaper products for customers. However, at the same time customers have their privacy concerns when it comes to shopping online. Internet is changing the way consumers shop and buy goods and services and has rapidly evolved into a global phenomenon. The technology oriented factors like guaranteed quality, cash on delivery discounts and promotions are the major specific factors influencing customer’s attitudes toward online shopping. This research paper attempts to analyze the consumer behavior towards online shopping and the various factors influencing trend of online shopping.

scholarly journals TEACHER COMPETENCIES AND THEIR RELATIONSHIP WITH THE DEVELOPMENT OF INTERACTIVE MEDIA

2021 ◽  
Author(s):  
Larasati
Keyword(s):  
Student Learning ◽  
Learning Process ◽  
Interactive Media ◽  
Teacher Competencies ◽  
Learning Achievement ◽  
National Education ◽  
Guaranteed Quality ◽  
The Media ◽  
Improving Student Learning ◽  
Improve Student Learning

In an effort to develop national education, teachers (educators) are urgently needed with guaranteed quality standards of competence and professionalism. learning at this time is an educator must be able to create creativity and the latest innovations in the learning process in order to improve student learning achievement. One form of innovation is to create effective and technology-based learning resources. So that the learning process with the aim of improving student learning achievement can be achieved, the media needed is right to support the maximum learning process

scholarly journals Efficient Online Scheduling of Electric Vehicle Charging Using a Service-Price Menu

2021 ◽  
Author(s):  
Angeliki Mathioudaki ◽  
Georgios Tsaousoglou ◽  
Emmanouel varvarigos ◽  
Dimitris Fotakis
Keyword(s):  
Quality Of Service ◽  
Electric Vehicles ◽  
Completion Time ◽  
Online Algorithm ◽  
Charging Station ◽  
Electric Vehicle Charging ◽  
Guaranteed Quality ◽  
Time Minimization ◽  
Weighted Completion Time

We present an online algorithm for scheduling the charging of Electric Vehicles (EVs) in a Charging Station, aiming to optimize the overall quality of service through sum of weighted completion time minimization. Upon arrival of each EV, the algorithm generates a menu of service-price options. By letting the EV users pick their most preferable option, the algorithm offers guaranteed quality of service, achieves near optimal performance, and prevents the users from acting strategically.

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