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@arXiv_csLG_bot@mastoxiv.page
2025-12-22 10:32:40

Convergence Guarantees for Federated SARSA with Local Training and Heterogeneous Agents
Paul Mangold, Elo\"ise Berthier, Eric Moulines
arxiv.org/abs/2512.17688 arxiv.org/pdf/2512.17688 arxiv.org/html/2512.17688
arXiv:2512.17688v1 Announce Type: new
Abstract: We present a novel theoretical analysis of Federated SARSA (FedSARSA) with linear function approximation and local training. We establish convergence guarantees for FedSARSA in the presence of heterogeneity, both in local transitions and rewards, providing the first sample and communication complexity bounds in this setting. At the core of our analysis is a new, exact multi-step error expansion for single-agent SARSA, which is of independent interest. Our analysis precisely quantifies the impact of heterogeneity, demonstrating the convergence of FedSARSA with multiple local updates. Crucially, we show that FedSARSA achieves linear speed-up with respect to the number of agents, up to higher-order terms due to Markovian sampling. Numerical experiments support our theoretical findings.
toXiv_bot_toot

@NFL@darktundra.xyz
2026-01-15 21:49:26

Their season is over, but it's a winning week for the Giants: Solak on John Harbaugh's impact espn.com/nfl/story/_/id/476198

Hiring head coach John Harbaugh is a big win for the Giants - ESPN
The Giants are finalizing a deal for John Harbaugh to become their next coach. It has been a rough decade for New York, but this hire could finally turn the tide.

@poppastring@dotnet.social
2025-12-15 18:00:46

The photography is by Arch-Exist.

A modern architectural structure with a sweeping arched roof and expansive glass facade, perched on a scenic hillside surrounded by greenery. The building features a curved outdoor deck supported by cylindrical columns and tiered wooden seating inside, where people are gathered in a relaxed, open setting.
An elevated wooden observation deck with a curved design, nestled into a lush green hillside. A person stands on the platform, gazing out over the dense vegetation, while the structure blends seamlessly with the natural surroundings.
A contemporary interior space with a sweeping arched wooden ceiling and floor-to-ceiling windows overlooking the ocean. The room features tiered seating with sculptural wooden tables and chairs arranged in a semi-circle, while sunlight casts dramatic shadows across the curved surfaces. Outside, a wooden deck extends toward the water, where two people enjoy the coastal view.
@NFL@darktundra.xyz
2026-01-15 13:24:23

The Rams' offense flows through ... its running game? Solak on why it's crucial to their playoff run espn.com/nfl/story/_/id/476003

NFL playoffs: How the Rams' offense flows through the run game - ESPN
Los Angeles has the second-most-efficient run game of the past decade -- behind its 2018 ground attack. But these two offensive schemes are very different.

@raiders@darktundra.xyz
2026-01-16 10:22:14

Raiders Hit With Promising Take on Indiana QB Fernando Mendoza heavy.com/sports/nfl/las-vegas

Raiders Hit With Promising Take on Indiana QB Fernando Mendoza
The Las Vegas Raiders will likely select Indiana Hoosiers QB Fernando Mendoza No. 1 overall, barring a trade or surprise pick. Moreover, if the Silver and Black need more convincing, ESPN’s Josh Pate gave a promising outlook.During an appearance on “The Colin Cowherd Podcast,” Pate stated that he’s seeing a better version of Mendoza since winning the Heisman Trophy. The Indiana star is elevating his game at the most crucial time in the College Football Playoff, and those should be excit…

@NFL@darktundra.xyz
2025-12-12 13:04:32

Ranking the top nine NFL head coaching candidates: Which coordinators could land an open job? espn.com/nfl/story/_/id/472593

Ranking top NFL head coach candidates for 2026 openings - ESPN
Will former head coaches Vance Joseph and Matt Nagy get another shot? Could Joe Brady get interviews? We stacked the hottest coaching candidates right now.

@NFL@darktundra.xyz
2026-02-08 16:05:20

Who makes Mike Macdonald's defense so good? Three Seahawks to watch in Super Bowl LX espn.com/nfl/story/_/id/478313

Three catalysts to the Seahawks' Super Bowl defense - ESPN
Devon Witherspoon, DeMarcus Lawrence and Nick Emmanwori are crucial players on Mike Macdonald's defense.

@NFL@darktundra.xyz
2025-12-02 00:59:47

'No shirt, no shirt': Bears HC Ben Johnson's viral celebration triggers free hot dogs espn.com/nfl/story/_/id/471705

Bears HC Ben Johnson reflects on going shirtless to trigger hot dog giveaway - ESPN
The Wieners Circle will hand out free hot dogs on Tuesday beginning at 11 a.m. CT after Ben Johnson went shirtless in his postgame celebration.

@NFL@darktundra.xyz
2026-02-05 12:44:47

Who makes Mike Macdonald's defense so good? Seahawks to watch in Super Bowl LX espn.com/nfl/story/_/id/478313

Three catalysts to the Seahawks' Super Bowl defense - ESPN
Devon Witherspoon, DeMarcus Lawrence and Nick Emmanwori are crucial players on Mike Macdonald's defense.

@NFL@darktundra.xyz
2026-01-07 16:19:44

NFL coach movement intel on every team: What we're hearing on possible changes, rising candidates espn.com/nfl/story/_/id/475154…

NFL head coach carousel, coordinator intel on all 32 teams - ESPN
We have the latest buzz on all 32 coaching staffs, including Mike Tomlin's Steelers future.