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Related Articles from SNS
Off-Policy Learning in Large Action Spaces: Optimization Matters More Than Estimation
arXiv:2509.03456v2 Announce Type: replace-cross Abstract: Off-policy evaluation (OPE) and off-policy learning (OPL) are foundational for decision-making in offline contextual bandits. Recent advances in OPL primarily optimize OPE estimators with improved statistical properties, assuming that better estimators inherently yield superior policies. Although theoretically justified, this estimator-centric approach neglects a critical practical obstacle: challenging optimization landscapes.
Off-Policy Evaluation with Strategic Agents via Local Disclosure
new Abstract: We study off-policy evaluation (OPE) under strategic behavior where decision subjects (or agents) respond to a decision maker's policy by strategically modifying their covariates. Such behavior induces a policy-dependent covariate shift, breaking the standard assumption in existing methods that covariates are exogenous to the policy. Related work addresses this challenge by imposing strong assumptions such as repeated interactions or full knowledge of agents' response behavior,...
Growing unease over UK's stuttering efforts to rearm
Britain's Prime Minister Keir Starmer speaks to British and Albanian troops about their involvement with training Ukarinian troops under Ope
Deployed trusted-node quantum key distribution over 300 km with a multi-core fiber access link
Announce Type: cross Abstract: Quantum key distribution (QKD) is increasingly considered for deployment in realistic communication networks, where long distances, heterogeneous fiber infrastructure, and coexistence with classical traffic present substantial challenges. Here, we demonstrate trusted-node QKD between Link\"oping University and the Stockholm hub of the Swedish national quantum communication infrastructure over 270 km of deployed single-mode fiber, extended by a 33 km multi-core...
Deployed trusted-node quantum key distribution over 300 km with a multi-core fiber access link
Announce Type: cross Abstract: Quantum key distribution (QKD) is increasingly considered for deployment in realistic communication networks, where long distances, heterogeneous fiber infrastructure, and coexistence with classical traffic present substantial challenges. Here, we demonstrate trusted-node QKD between Link\"oping University and the Stockholm hub of the Swedish national quantum communication infrastructure over 270 km of deployed single-mode fiber, extended by a 33 km multi-core...
Autoregressive Diffusion World Models for Off-Policy Evaluation of LLM Agents
arXiv:2606.05558v1 Announce Type: new Abstract: Evaluating large language model (LLM) agents in multi-turn interactive environments is expensive and risky, as it requires online environment interaction. We propose ADWM (Autoregressive Diffusion World Model), an evaluation framework that estimates the performance of a new LLM agent policy purely from pre-collected trajectories. The core idea is to learn a latent diffusion world model that simulates how the environment responds to the...
Public sector bank accounts not needed for re-evaluation fee: CBSE
Amid confusion among candidates following the launch of the system earlier this week, CBSE Wednesday clarified that students applying for verification and re-evaluation of Class XII answer sheets do not need to hold accounts with State Bank of India, Canara Bank, Bank of Baroda or Indian Bank for payments on board’s online portal. Board also said the portal was functioning smoothly despite a major cyberattack attempt Tuesday, when the system came under a barrage of denial-of-service attacks...