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Ayush Bharti

@ayushbharti.bsky.social

Academy Research Fellow at the Dept. of Computer Science, Aalto University, Finland. Affiliated with the Finnish Center for Artificial Intelligence. Website: http://bharti-ayush.github.io

828 Followers  |  191 Following  |  18 Posts  |  Joined: 18.11.2024  |  2.1617

Latest posts by ayushbharti.bsky.social on Bluesky

The abstract submission deadline for the ELLIS Workshop on Amortized Probabilistic ML has been extended to October 25th!

You still have time to submit a short abstract on your work in: Amortized Inference, Neural processes, Prior-fitted networks, Sequential Decision-Making, and Foundation models.

17.10.2025 11:22 โ€” ๐Ÿ‘ 8    ๐Ÿ” 6    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
โ€œCollaboration is a feature of the Finnish research communityโ€ | ELLIS Institute Finland Strong collegial network is an asset to Ayush Bharti's research on robust machine learning.

Thinking about a #PhD in AI + #machinelearning?

๐Ÿ‡ซ๐Ÿ‡ฎ Read about @ayushbharti.bsky.social's experience doing research in Finland:
www.ellisinstitute.fi/collaboratio...

Then,
๐Ÿ‘€ Apply for the @ellis.eu PhD program by October 31 ๐ŸŽƒ : ellis.eu/news/ellis-p...

06.10.2025 11:06 โ€” ๐Ÿ‘ 4    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Doctoral Researcher (simulation-based inference) / Vรคitรถskirjatutkija (simulaatio-pohjainen pรครคttely)

I'm looking for a Doctoral Researcher (PhD student) to work with me on simulation-based inference at Data Science Research Centre, Tampere University Check the link for details and send an application before October 10th.

tuni.rekrytointi.com/paikat/?o=A_...

01.09.2025 06:51 โ€” ๐Ÿ‘ 8    ๐Ÿ” 8    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Just finished delivering a course on 'Robust and scalable simulation-based inference (SBI)' at Greek Stochastics. This covered an introduction to SBI, open challenges, and some recent contributions from my own group.

The slides are now available here: fxbriol.github.io/pdfs/slides-....

28.08.2025 11:46 โ€” ๐Ÿ‘ 35    ๐Ÿ” 9    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1

Great initiative!

03.07.2025 08:03 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Thank you so much! Glad you liked it.

02.05.2025 15:24 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Doing so saves hours of computation time for the radio propagation model without any degradation in performance. (5/5)

02.05.2025 06:45 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Sampling from the cost-aware proposal is done via rejection sampling, and self-normalised importance weights are used to target the SBI posterior. (4/5)

02.05.2025 06:45 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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We propose to sample from a cost-aware proposal to encourage sampling from the cheaper parameterisations of the model. (3/5)

02.05.2025 06:45 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Oftentimes, this computational cost varies with the parameter value, as is the case with this model from wireless communications field where the cost increases linearly. (2/5)

02.05.2025 06:45 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Thread below:

Popular SBI methods such as Approximate Bayesian computation (ABC), neural posterior estimation (NPE) and neural likelihood estimation (NLE) require running the simulator thousands of times, which can be a computational bottleneck. (1/5)

02.05.2025 06:45 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Poster

02.05.2025 06:45 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Cost-aware simulation-based inference Simulation-based inference (SBI) is the preferred framework for estimating parameters of intractable models in science and engineering. A significant challenge in this context is the large computation...

"Cost-aware simulation-based inference" is accepted at AISTATS 2025.

Check out our poster #205 on Sunday May 4th in Hall A-E if you are in Phuket. Finland's rising star @huangdaolang.bsky.social will be there to assist you :D

arxiv.org/abs/2410.07930

@fxbriol.bsky.social @samikaski.bsky.social

02.05.2025 06:45 โ€” ๐Ÿ‘ 18    ๐Ÿ” 5    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1

Looking forward to this!

23.04.2025 13:26 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Multi-Head Latent Attention vs Group Query Attention: We break down why MLA is a more expressive memory compression technique AND why naive implementations can backfire. Check it out!

12.03.2025 19:01 โ€” ๐Ÿ‘ 25    ๐Ÿ” 10    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

Looking forward to speaking at the @approxbayesseminar.bsky.social!

14.02.2025 13:14 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Our next talk will be on Thursday the 27th February at 11am UK time. Our next speaker is Ayush Bharti (Aalto University), who will talk about "Cost-aware simulation-based inference". To receive the link, sign up here: listserv.csv.warwick...

14.02.2025 10:41 โ€” ๐Ÿ‘ 11    ๐Ÿ” 5    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 1

Congrats ๐ŸŽ‰

20.12.2024 16:35 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

If you are interested in doing a #PhD with me at Imperial College London and qualify as a home student, please reach out (before end of 2024)! Potential topics: spatial statistics, applied deep generative models, probabilistic programming and more.

19.12.2024 14:21 โ€” ๐Ÿ‘ 7    ๐Ÿ” 5    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Congratulations Matias!

10.12.2024 14:17 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Optimizing decision utility in Bayesian experimental design is key to improving downstream decision-making.

Excited to share our #NeurIPS2024 paper on Amortized Decision-Aware Bayesian Experimental Design: arxiv.org/abs/2411.02064

@lacerbi.bsky.social @samikaski.bsky.social

Details below.

05.12.2024 12:18 โ€” ๐Ÿ‘ 41    ๐Ÿ” 12    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 2
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@huangdaolang.bsky.social just joined here and you should follow him if you are interested in probabilistic machine learning, (Bayesian) exp. design and AI-assisted decision making. Not to mention that he has *several* NeurIPS papers already while in his 3rd PhD year...

27.11.2024 15:30 โ€” ๐Ÿ‘ 8    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Looks very interesting. This goes to the top of my reading list ๐Ÿ˜€

21.11.2024 06:25 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Hi, I'd like to join if that's ok.

19.11.2024 09:16 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

โœ‹

19.11.2024 09:14 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Sure. Will do.

19.11.2024 09:09 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Thanks for creating this (and adding me) Marvin!

19.11.2024 07:59 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

@ayushbharti is following 20 prominent accounts