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hep-ph2026
Displaced tracks as a signal of dark matter co-annihilation: a case study using inert doublet model at collider
Hrishikesh Deka, Subhaditya Bhattacharya, Amir Subba +1
Dark sector containing heavy (charged) particles with small mass splitting with dark matter (DM) can co-annihilate and produce correct relic density, evading direct detection bound…
cs.LG2026
Optimal and Efficient Contextual Combinatorial Semi-bandits with General Function Approximation
Hao Qin, Chicheng Zhang
We study the contextual combinatorial semi-bandit (CCSB) problem with general reward function approximation. At each round, the learner observes a context, selects a combinatorial…
cs.LG2026
Taming the Monster Every Context: Complexity Measure and Unified Framework for Offline-Oracle Efficient Contextual Bandits
Hao Qin, Chicheng Zhang
We propose an algorithmic framework, Offline Estimation to Decisions (OE2D), that efficiently reduces contextual bandit learning with general reward function approximation to offli…