Cheng Guo (郭成)

Assistant professor @ClemsonUniv Math&Stats (Area: Operations Research). Energy markets, Optimization, and Economics. Ph.D. from @UofT, M.S. @Columbia.

[Cheng Guo (郭成) @chengg04]

2. Tightening Quadratic Convex Relaxations for the AC Optimal Transmission Switching Problem
C. Guo, H. Nagarajan, M. Bodur
INFORMS Journal on Computing
https://t.co/TnBenYkV8j
We solve large-scale mixed-integer nonlinear ACOTS problems, scaling to systems with over 2,000 buses.

[Cheng Guo (郭成) @chengg04]

🎉Two of my papers were accepted in Management Science and INFORMS Journal on Computing recently. Both started during my Ph.D., and I am glad to see them published now. Thank you to my coauthors for mentorship and support! (1/3)👇

[Cheng Guo (郭成) @chengg04]

1. Copositive Duality for Discrete Energy Markets
C. Guo, M. Bodur, J. A. Taylor
Management Science
https://t.co/zgRwV2b5vy
We design a novel pricing mechanism for nonconvex energy markets using copositive program and strong duality.

[Cheng Guo (郭成) @chengg04]

Check out our session WC16 on "Implications of Uncertainties and Market Power in Electricity Market Pricing" (Wednesday 12:15-1:30, Summit - 336) @INFORMS2024 :)

[Cheng Guo (郭成) @chengg04]

@yury_dvorkin Thank you Yury for being a great mentor and coauthor!

[Cheng Guo (郭成) @chengg04]

To tackle the resulting nonlinear nonconvex model, we develop a logic-based Benders decomposition method, enabling us to conduct extensive experiments using a realistic NYISO data set, showcasing the potential of our method to improve grid reliability under renewable integration.

[Cheng Guo (郭成) @chengg04]

Check out our paper on risk-aware unit commitment, now accepted at IEEE Transactions on Energy Markets, Policy and Regulation. This is a joint work with Daniel Bienstock, Yury Dvorkin (@yury_dvorkin), Robert Mieth and Jiayi Wang.
https://t.co/MjKUwbvleA

[Cheng Guo (郭成) @chengg04]

To protect consumers from growing risk of volatile net load with the surge in renewable energy, we propose an enhancement to the day-ahead electricity market. Our method features a data-driven uncertainty set, capturing locational correlation of uncertainty across the grid.

[arXiv math.OC Optimization and Control @mathOCb]

Daniel Bienstock, Yury Dvorkin, Cheng Guo, Robert Mieth, Jiayi Wang: Risk-Aware Security-Constrained Unit Commitment https://t.co/CXDqZb6DBM https://t.co/mCT35KMThW

[arXiv math.OC Optimization and Control @mathOCb]

Cheng Guo, Christian Kroer, Yury Dvorkin, Daniel Bienstock: Incentivizing Investment and Reliability: A Study on Electricity Capacity Markets https://t.co/UzBxiudBX9 https://t.co/kIiyjt2ojv

[Cheng Guo (郭成) @chengg04]

Check out our session MD08 on Market Design for Electricity Markets (Monday 2:15-3:30, North-122B) @INFORMS2023!

[Cheng Guo (郭成) @chengg04]

I recently used SOS1 reformulation that is implemented in BilevelJuMP.jl to solve a large-scale Stackelberg game. It is fast!

[Cheng Guo (郭成) @chengg04]

An additional tip for UofToronto students on job market. MacOS may auto-correct the “utoronto” in university email address to “toronto”. When I was on job market, I had the wrong email on my CV and almost missed my offer letter 🤦🏻‍♀️

[Thiago Serra (@thserra.bsky.social) @thserra]

.@chengg04 talks at #mip2023 about applying composite programming to problems in energy markets

[Harsha Nagarajan @NagarajanHarsha]

@chengg04 talking about strengthing relaxations for summation of bilinear terms with indicator variables in the ACOTS application.
#INFORMS2022 #ORMS

[Cheng Guo (郭成) @chengg04]

This is the first time I see a DEI training that addresses homophily and “academic pedigree”. Very insightful.

[Adam Elmachtoub @Adam235711]

Nice video from @informs, I've done a lot of related training for work but I think this one stands out. https://t.co/9ZezL6kLPJ

[Cheng Guo (郭成) @chengg04]

I realized today that the Zoom calendar invites I sent out are always in Chinese, and I'd been wondering why people didn't accept my invites🤦🏻‍♀️. If there is anyone wondering how to change the iCloud calendar invite language, go to the AppleID website, instead of iCloud website...

[Cheng Guo (郭成) @chengg04]

And another science-based reading: https://t.co/Hv0SfOyTX4

[Cheng Guo (郭成) @chengg04]

Being denied an abortion can have long-term negative effects on the parent, the child, and the family: https://t.co/21JixGKJVs

[Jacob Mays @jacob_mays]

Hello, INFORMS 2022 annual meeting attendees! If you have a presentation that fits within Energy, Natural Resources, and Environment but haven't yet found a session, please fill out this form and we'll try to find a match: https://t.co/9lNCwCptT2