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New Method Is the Fastest Way To Find the Best Routes

2 months 3 weeks ago
Computer scientists at Tsinghua University and Stanford have developed an algorithm that surpasses a fundamental speed limit that has constrained network pathfinding calculations since 1984. The team's approach to the shortest-path problem -- finding optimal routes from one point to all others in a network -- runs faster than Dijkstra's 1956 algorithm and its improvements by avoiding the sorting process that created the decades-old computational barrier. Led by Ran Duan at Tsinghua, the researchers combined clustering techniques with selective application of the Bellman-Ford algorithm to identify influential nodes without sorting all paths by distance. The algorithm divides graphs into layers and uses Bellman-Ford to locate key intersection points before calculating paths to other nodes. The technique works on both directed and undirected graphs with arbitrary weights, solving a problem that stymied researchers after partial breakthroughs in the late 1990s and early 2000s applied only to specific weight conditions.

Read more of this story at Slashdot.

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Star leaky app of the week: StarDict

2 months 3 weeks ago
Fun feature found in Debian 13: send your selected text to China – in plaintext

As Trixie gets ready to début, a little-known app is hogging the limelight: StarDict, which sends whatever text you select, unencrypted, to servers in China.…

Liam Proven

UK Secretly Allows Facial Recognition Scans of Passport, Immigration Databases

2 months 3 weeks ago
An anonymous reader shares a report: Privacy groups report a surge in UK police facial recognition scans of databases secretly stocked with passport photos lacking parliamentary oversight. Big Brother Watch says the UK government has allowed images from the country's passport and immigration databases to be made available to facial recognition systems, without informing the public or parliament. The group claims the passport database contains around 58 million headshots of Brits, plus a further 92 million made available from sources such as the immigration database, visa applications, and more. By way of comparison, the Police National Database contains circa 20 million photos of those who have been arrested by, or are at least of interest to, the police.

Read more of this story at Slashdot.

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