Pointwise convolutional neural networks
Deep learning with 3D data such as reconstructed point clouds and CAD models has
received great research interests recently. However, the capability of using point clouds with …
received great research interests recently. However, the capability of using point clouds with …
Accurate estimation of prediction models for operator-induced defects in assembly manufacturing processes
The presence of defects in industrial manufacturing may compromise the final quality and
cost of a product. Among all possible defect causes, human errors have significant effects on …
cost of a product. Among all possible defect causes, human errors have significant effects on …
Optimum lot inspection based on lognormal reliability tests
AJ Fernández - International Journal of Production Research, 2023 - Taylor & Francis
Improved lognormal reliability test plans are proposed for lot sentencing. A mixed integer
nonlinear programming problem is stated and solved in order to find the duration of the …
nonlinear programming problem is stated and solved in order to find the duration of the …
Planning reliability demonstration tests with limited expected risks
AJ Fernandez - Computers & Industrial Engineering, 2022 - Elsevier
Optimal reliability demonstration test plans with controlled expected producer and consumer
risks are computed. Device failure times follow Weibull distributions, whereas prior …
risks are computed. Device failure times follow Weibull distributions, whereas prior …
Smart information visualization for first-time quality within the automobile production assembly line
This paper presents a smart information technology framework for an adequate visualization
of assembly-and quality-related information on the vehicle assembly line. Automobile …
of assembly-and quality-related information on the vehicle assembly line. Automobile …
The economic production quantity model with optimal single sampling inspection
M Nakhaeinejad - IMA Journal of Management Mathematics, 2024 - academic.oup.com
This paper derives an inspection policy for an economic production quantity (EPQ) model
under the assumption that a process may produce non-conforming (NC) items. In various …
under the assumption that a process may produce non-conforming (NC) items. In various …
Economic lot sampling inspection from defect counts with minimum conditional value-at-risk
AJ Fernández - European Journal of Operational Research, 2017 - Elsevier
Expected cost functions are often minimized to determine optimal inspection schemes for lot
acceptance purposes. However, minimum mean cost sampling plans usually have high …
acceptance purposes. However, minimum mean cost sampling plans usually have high …
Optimal durations of Weibull reliability tests based on failure counts
AJ Fernández - Computers & Industrial Engineering, 2021 - Elsevier
In industry, the durations of reliability experiments are usually fixed in advanced, which
could lead to suboptimal results. A constrained optimization problem is stated in order to …
could lead to suboptimal results. A constrained optimization problem is stated in order to …
Balancing producer and consumer risks in optimal attribute testing: A unified Bayesian/Frequentist design
Unified Bayesian/frequentist approaches for the design of attributes sampling plans are
introduced by minimizing and limiting a weighted-average of the classical or expected …
introduced by minimizing and limiting a weighted-average of the classical or expected …
Gamma reliability test times with minimal costs and limited risks
AJ Fernández - IEEE Transactions on Reliability, 2021 - ieeexplore.ieee.org
Minimum-cost reliability test durations based on gamma failure count data are found by
solving mixed integer nonlinear programming problems. The optimal numbers of test units …
solving mixed integer nonlinear programming problems. The optimal numbers of test units …