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Low-Rank Acceleration of the Operator Fourier Transform
arXiv:2606.09689v1 Announce Type: new Abstract: We develop a numerical algorithm for the efficient solution or approximation of solutions to the Helmholtz equation on a structured grid in two dimensions. We make use of the Operator Fourier Transform (OFT) and a low-rank cross approximation scheme (Cross-DEIM) to decompose the problem into an integral over a pseudo-time of solutions to the Schr\"odinger equation. The OFT is a framework for solving operator equations like fractional Laplacian...
OrderDP: A Theoretically Guaranteed Lossless Dynamic Data Pruning Framework
Announce Type: new Abstract: Data pruning (DP), as an oft-stated strategy to alleviate heavy training burdens, reduces the volume of training samples according to a well-defined pruning method while striving for near-lossless performance. However, existing approaches, which commonly select highly informative samples, can lead to biased gradient estimation compared to full-dataset training. Furthermore, the analysis of this bias and its impact on final performance remains ambiguous.
Anthony Head brought gravitas to Buffy and everything else he touched | Jesse Hassenger
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‘Sit back and relax’: White House Iran post goes viral and gets torn apart online
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Anthony Head brought gravitas to Buffy and everything else he touched | Jesse Hassenger
The late actor was a charming and funny father figure, and sometime singer, in the cult TV show, one of his many roles that showed just how much he could doAnthony Head, Buffy the Vampire Slayer and Ted Lasso actor, dies aged 72For years, fans eagerly anticipated the oft-floated idea of a spinoff from the cultishly beloved 1997-2003 TV series Buffy the Vampire Slayer. As described by creator Joss Whedon, this miniseries would not follow beloved supporting characters like nerdy witch Willow,...
GM Wants Your Electric Car to Power Your House—and Your Neighborhood
Some 250,000 electric vehicles manufactured by General Motors are driving around the US today—right now!—with an oft-secret capability: Their big, powerful batteries can charge other things. Potentially appliances, homes, and now, thanks to a software update pushed by the automaker this week, an electrical grid. Twelve of GM’s EVs have this “bidirectional charging” capability, way more than US competitors’ battery-electrics.
ActQuant: Sub-4-bit Action-Guided Quantization for Vision-Language-Action Models
arXiv:2605.24011v2 Announce Type: replace Abstract: Vision-Language-Action (VLA) models exhibit remarkable action generation for embodied intelligence, but their heavy compute make deployment on edge platforms impractical. Aggressive, sub-4-bit weight quantization is the natural solution, yet existing post-training quantization (PTQ) methods suffer severe performance degradation in this regime. To address this, we introduce ActQuant, an action-guided mixed-precision PTQ framework that...
From Abstraction to Instantiation: Learning Behavioral Representation for Vision-Language-Action Model
Announce Type: replace Abstract: Vision-Language-Action (VLA) models often suffer from performance degradation under distribution shifts, as they struggle to learn generalized behavior representations across varying environments. While existing approaches attempt to construct behavior representations through action-centric latent variables, they are often limited by short-horizon temporal fragmentation and static execution-alignment, leading to inconsistent behaviors in complex scenarios. To...
Ebola 'spreading unchecked for months' as patient zero traced back to January
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AttenA+: Rectifying Action Inequality in Robotic Foundation Models
Announce Type: replace Abstract: Existing robotic foundation models, while powerful, are predicated on an implicit assumption of temporal homogeneity: treating all actions as equally informative during optimization. This "flat" training paradigm, inherited from language modeling, remains indifferent to the underlying physical hierarchy of manipulation. In reality, robot trajectories are fundamentally heterogeneous, where low-velocity segments often dictate task success through...