# RBDO: RBDO with two stages of enrichment

**URL:** <https://uqworld.org/t/rbdo-rbdo-with-two-stages-of-enrichment/1891>\
**Category:** Community Q&A and How To\
**Tags:** rbdo\
**Created:** [May 16, 2023, 3:09am UTC](https://uqworld.org/t/rbdo-rbdo-with-two-stages-of-enrichment/1891 "2023-05-16T03:09:07Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Mr121Tony](https://uqworld.org/user_avatar/uqworld.org/mr121tony/32/1070_2.png) [@Mr121Tony](https://uqworld.org/u/Mr121Tony)\
**Post date:** [May 16, 2023, 3:09am UTC](https://uqworld.org/t/rbdo-rbdo-with-two-stages-of-enrichment/1891/1 "2023-05-16T03:09:07Z")

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Dear professor,  
How can I implement “RBDO with two stages of enrichment” in UQLab?  
best wishes!  
Tony Smith

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**Author:** ![ttz](https://uqworld.org/letter_avatar_proxy/v4/letter/t/7c8e57/32.png) [@ttz](https://uqworld.org/u/ttz)\
**Post date:** [April 17, 2024, 2:19pm UTC](https://uqworld.org/t/rbdo-rbdo-with-two-stages-of-enrichment/1891/2 "2024-04-17T14:19:24Z")

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Dear Tony,  
Here are some references [https://www.uqlab.com/rbdo-user-manual](https://www.uqlab.com/rbdo-user-manual)  
[RBDO - Column under compression | Examples | UQLab](https://www.uqlab.com/rbdo-column-under-compression)

Best,  
TT

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**Author:** ![Mr121Tony](https://uqworld.org/user_avatar/uqworld.org/mr121tony/32/1070_2.png) [@Mr121Tony](https://uqworld.org/u/Mr121Tony)\
**Post date:** [April 25, 2024, 2:26am UTC](https://uqworld.org/t/rbdo-rbdo-with-two-stages-of-enrichment/1891/3 "2024-04-25T02:26:06Z")

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Dear TT,  
Have you read the paper “Quantile-based optimization under uncertainties using  
adaptive Kriging surrogate models” ?  
RBDO with two stages of enrichment is proposed in this paper. Can you teach me how to achieve this method in the UQLab?  
best wishes!  
Tony Smith