Nettet21. jun. 2024 · Although such solutions are typically of very high quality, problem instances are usually not solved to optimality due to imperfections of the current generations quantum annealers. In this contribution, we aim to understand some of the factors contributing to the hardness of a problem instance, and to use machine … Nettet28. jun. 2024 · Such instance-specific behavior is not captured by existing global minimax bounds, which are worst-case in nature. We analyze the problem of estimating optimal Q-value functions for a discounted Markov decision process with discrete states and actions and identify an instance-dependent functional that controls the difficulty of estimation in …
CS264: Beyond Worst-Case Analysis Lecture #20: From Unknown …
Nettet1. jun. 2024 · This paper takes a principled approach, yielding a mechanism that is instance-optimal in a strong sense. In addition to its theoretical optimality, the mechanism is also simple and practical, and adapts to a variety of data characteristics without the need of parameter tuning. It easily extends to the local and shuffle model as … Nettet31. des. 2024 · By an instance-optimal algorithm, one generally means an algorithm with opti- mality ratio bounded by a constant. 11 This is a demanding definition, and for … how to unravel a phone cord
Towards Instance Optimal Bounds for Best Arm Identification
Nettet21. jun. 2024 · Instance-Optimal Compressed Sensing via Posterior Sampling Ajil Jalal, Sushrut Karmalkar, Alexandros G. Dimakis, Eric Price We characterize the measurement complexity of compressed sensing of signals drawn from a known prior distribution, even when the support of the prior is the entire space (rather than, say, … NettetThrough an explicit example, we show that PEDEL yields provable gains over low-regret, minimax-optimal algorithms and that such algorithms are unable to hit the instance-optimal rate. Our approach relies on a novel online experiment design-based procedure which focuses the exploration budget on the directions'' most relevant to learning a … Nettet28. mar. 2024 · Instance pools let you create and manage multiple compute instances within the same region as a group. They also enable integration with other services, … oregon relays 2021