![]() ![]() The sunny, all-bullish demand narrative just a few quarters back has made way for more cautious and tempered expectations as storm clouds over the global economy prompt economic commentators to flash warnings about recession risks and international market shocks. Indian IT services companies are expected to log steady sequential revenue growth in the September quarter but an overhang of weak global cues tinged with macro risks will put the spotlight on management commentary around deal momentum and demand outlook, say, analysts.īrokerage reports and analysts' notes on the Q2 earnings preview anticipate a reasonably strong growth quarter for Indian IT firms despite challenging macroeconomic scenarios in the US and Europe, but there are a fair bit of warnings around ''incremental pockets of weakness'' or ''slowdown in coming quarters''. Results show that the proposed sequential approach is more efficient than the one-shot sampling method for robust design optimization problems.PTI | New Delhi | Updated: 09-10-2022 16:08 IST | Created: 09-10-2022 15:56 IST Representative image Image Credit: Pixabay The performance of the proposed approach is verified using two analytical examples and an engineering case. Moreover, the EUCB function is extended to handle constrained robust design optimization problems by combining the probability of feasibility. In the EUCB function, the cost ratio between high- and low-fidelity models and the sampling density are considered. An extended upper confidence boundary (EUCB) function is developed to determine both the sampling locations and the fidelity levels of the sequential samples. The proposed method considers both design variable uncertainty and interpolation uncertainty during the sequential sampling. This paper proposes a sequential sampling method for robust design optimization based on multi-fidelity modeling. The existing sequential sampling approaches, however, are dedicated to either deterministic multi-fidelity design optimization or robust design under uncertainty using single-fidelity models. ![]() Sequential sampling strategies have been investigated to improve the computational efficiency of surrogate-assisted design optimization. Multi-fidelity surrogate modeling has been extensively used in engineering design to achieve a balance between computational efficiency and prediction accuracy. Journal of Verification, Validation and Uncertainty Quantification.Journal of Thermal Science and Engineering Applications.Journal of Offshore Mechanics and Arctic Engineering.Journal of Nuclear Engineering and Radiation Science.Journal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems.Journal of Nanotechnology in Engineering and Medicine.Journal of Micro and Nano-Manufacturing.Journal of Manufacturing Science and Engineering.Journal of Engineering Materials and Technology.Journal of Engineering for Sustainable Buildings and Cities.Journal of Engineering for Gas Turbines and Power.Journal of Engineering and Science in Medical Diagnostics and Therapy.Journal of Electrochemical Energy Conversion and Storage.Journal of Dynamic Systems, Measurement, and Control.Journal of Computing and Information Science in Engineering.Journal of Computational and Nonlinear Dynamics.Journal of Autonomous Vehicles and Systems.ASME Letters in Dynamic Systems and Control.ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering.Mechanical Engineering Magazine Select Articles.
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