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California is testing a ‘smart highway’ where algorithms determine the speed limit and when cars can enter the freeway
California is testing a ‘smart highway’ where algorithms determine the speed limit and when cars can enter the freeway The two year pilot program costs $33 million — significantly less than it would cost to widen the freeway, officials said - Bookmark - CommentsGo to comments California transportation officials are testing a “smart freeway” that uses an algorithm to determine when cars can enter the roadway and at what speed traffic flows. Instead of spending millions to widen Interstate 15...
Listing Even Cycles Faster than the Submodular-Width Barrier
arXiv:2605.30564v1 Announce Type: new Abstract: A classic result of Alon, Yuster, and Zwick (AYZ, Algorithmica 1997) shows that all $2k$-cycles in an $m$-edge graph can be listed in $\tilde O(m^{2-1/k}+t)$ time, where $t$ is the output size. This bound underlies the {\em submodular width} of Marx (JACM 2013) and the PANDA framework of Abo Khamis, Ngo, and Suciu (PODS 2017), which extend AYZ to arbitrary conjunctive queries with degree constraints. A central open question is whether...
Anti-Fourier heat flux does not certify the fourth-order closure state of a rarefied cavity
arXiv:2606.01480v1 Announce Type: new Abstract: Cold-to-hot heat transfer in rarefied cavities is usually treated as a signature of Fourier-law failure. Here it is used to ask whether a correct anti-Fourier heat-flux field certifies the flux-side fourth-order closure state. In a two-dimensional monatomic flow, the heat-flux hierarchy observes the divergence of the composite R26-level tensor \(A_{ij}=R^{\cl}_{ij}+\Delta\delta_{ij}/3\), not the tensorial fourth-order anisotropy...