Search Results for author: Douglas J. Leith

Found 5 papers, 1 papers with code

Penalised FTRL With Time-Varying Constraints

no code implementations5 Apr 2022 Douglas J. Leith, George Iosifidis

In this paper we extend the classical Follow-The-Regularized-Leader (FTRL) algorithm to encompass time-varying constraints, through adaptive penalization.

Lazy Lagrangians with Predictions for Online Learning

no code implementations8 Jan 2022 Daron Anderson, George Iosifidis, Douglas J. Leith

We consider the general problem of online convex optimization with time-varying additive constraints in the presence of predictions for the next cost and constraint functions.

Measurement-Based Evaluation Of Google/Apple Exposure Notification API For Proximity Detection in a Commuter Bus

1 code implementation15 Jun 2020 Douglas J. Leith, Stephen Farrell

We find that the attenuation level reported by the GAEN API need not increase with distance between handsets, consistent with there being a complex radio environment inside a bus caused by the metal-rich environment.

Coronavirus Contact Tracing: Evaluating The Potential Of Using Bluetooth Received Signal Strength For Proximity Detection

no code implementations19 May 2020 Douglas J. Leith, Stephen Farrell

This suggests that the development of accurate methods for proximity detection based on Bluetooth LE received signal strength is likely to be challenging.

Learning The Best Expert Efficiently

no code implementations11 Nov 2019 Daron Anderson, Douglas J. Leith

We consider online learning problems where the aim is to achieve regret which is efficient in the sense that it is the same order as the lowest regret amongst K experts.

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