Mengye Ren
@mengyer.bsky.social
130 followers 94 following 55 posts
@agentic-ai-lab.bsky.social mengyeren.com
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Reposted by Mengye Ren
neuripsconf.bsky.social
Be part of #NeurIPS2025 in Mexico City! Submit your proposals:

📅 Deadlines
Tutorials: Sept 26 👉 neurips.cc/Conferences/...
Workshops: Sept 30 👉 neurips.cc/Conferences/...
Socials: Oct 1 👉 neurips.cc/Conferences/...
Startup Pitch: Oct 15 👉 neurips.cc/Conferences/...
Reposted by Mengye Ren
nyudatascience.bsky.social
Watch this new video of work by CDS Asst. Prof. Mengye Ren (@mengyer.bsky.social) and colleagues, who built PooDLe, an algorithm that helps AI systems learn from complex environments like busy streets.

The method mimics how humans process cluttered scenes.

www.nyu.edu/about/news-p...
Reposted by Mengye Ren
neuripsconf.bsky.social
We're excited to announce a second physical location for NeurIPS 2025, in Mexico City, which we hope will address concerns around skyrocketing attendance and difficulties in travel visas that some attendees have experienced in previous years.

Read more in our blog:
blog.neurips.cc/2025/07/16/n...
Reposted by Mengye Ren
neuripsconf.bsky.social
NeurIPS is endorsing EurIPS, an independently-organized meeting which will offer researchers an opportunity to additionally present NeurIPS work in Europe concurrently with NeurIPS.

Read more in our blog post and on the EurIPS website:
blog.neurips.cc/2025/07/16/n...
eurips.cc
eurips.cc
A NeurIPS-endorsed conference in Europe held in Copenhagen, Denmark
eurips.cc
Reposted by Mengye Ren
neuripsconf.bsky.social
NeurIPS is seeking additional ethics reviewers this year. If you are able and willing to participate in the review process, please sign up at the form in the link:
neurips.cc/Conferences/...
Please share this call with your colleagues!
2025 Call For Ethics Reviewers
If you are able and willing to participate in the review process, please sign up at this form. Feel free to share this call with your colleagues.
neurips.cc
Reposted by Mengye Ren
Reposted by Mengye Ren
neuripsconf.bsky.social
The NeurIPS Position Track is seeking additional reviewers this year. If you'd like to serve or nominate a colleague, please complete our nomination form! docs.google.com/forms/d/e/1F...
NeurIPS 2025 Position Paper Track Reviewer Nomination Form
Does this form look suspicious? Report
docs.google.com
mengyer.bsky.social
The proposed 5% remittance tax on non-citizens is another blatant attack on foreign workers, who've contributed tremendously to the U.S. economy, have little path to citizenship, no birthright for their kids, and will face double taxation on their hard-earned dollars.
mengyer.bsky.social
10/ This @agentic-ai-lab.bsky.social project was led by
Alex Wang @alexnwang.bsky.social and Chris Hoang @choang.bsky.social , together with Yuwen Xiong, @yann-lecun.bsky.social and @mengyer.bsky.social.
mengyer.bsky.social
8/ We also study how data augmentation choices like crop scale, input resolution, and time between sampled frames can have a large impact on video pretraining.
mengyer.bsky.social
7/ These performance differences manifest visually too! IN1K has noisy segmentations and FlowE misses small objects, while PooDLe avoids both problems.
mengyer.bsky.social
6/ Interestingly, we find that dense SSL performance is driven by large classes whereas ImageNet pretraining does well on small, foreground classes.
PooDLe is able to perform well on both small and large classes!
mengyer.bsky.social
5/ PooDLe, pretrained on BDD100K and Walking Tours, outperforms prior iconic and dense SSL methods on semantic segmentation and object detection!
We also release WT-Sem, an in-distribution semantic segmentation task for Walking Tours.
mengyer.bsky.social
4/ We also propose a spatial decoder module to upsample the top-level features to higher resolution for the dense loss. The top-level features act as an information bottleneck that both satisfies the high-level invariance loss and is compatible with upsampling for the dense loss.
mengyer.bsky.social
3/ PooDLe addresses these challenges by unifying a dense, flow equivariance objective over global crops and a view invariance objective over smaller subcrops that serve as pseudo-iconic views. Crops are sampled from pairs of video frames, with motion as a natural augmentation.
mengyer.bsky.social
2/ Dense SSL methods account for multiple subjects by computing losses over corresponding spatial regions. However, we identify a new problem – spatial imbalance! Larger background regions like the sky are prioritized over smaller foreground objects like pedestrians.
mengyer.bsky.social
1/ Many SSL methods revolve around ImageNet, iconic images with single subjects and balanced classes, and rely on invariance losses between augmented views. These methods can struggle on naturalistic videos, which contain multiple subjects of varying size and imbalanced classes.
mengyer.bsky.social
How can we leverage naturalistic videos for visual SSL? Naturalistic, i.e. uncurated, videos are abundant and can emulate the egocentric perspective.

Our paper at ICLR 2025, PooDLe🐩, proposes a new SSL method to address the challenges of learning from naturalistic videos. 🧵
mengyer.bsky.social
A single man's decision wiped out 20% of the global wealth and still going...
mengyer.bsky.social
America will become a T-shirt manufacturing superpower!
mengyer.bsky.social
Love that stock market crashing...
mengyer.bsky.social
"A French scientist was denied entry to the US after immigration officers at an airport searched his phone and found messages in which he had expressed criticism of the Trump administration." --- So much for freedom of speech.