Search Results for author: Christopher King

Found 6 papers, 3 papers with code

A Multi-View Joint Learning Framework for Embedding Clinical Codes and Text Using Graph Neural Networks

no code implementations27 Jan 2023 Lecheng Kong, Christopher King, Bradley Fritz, Yixin Chen

Learning to represent free text is a core task in many clinical machine learning (ML) applications, as clinical text contains observations and plans not otherwise available for inference.

MULTI-VIEW LEARNING

Self-explaining Hierarchical Model for Intraoperative Time Series

1 code implementation10 Oct 2022 Dingwen Li, Bing Xue, Christopher King, Bradley Fritz, Michael Avidan, Joanna Abraham, Chenyang Lu

Towards this end, we propose a hierarchical model combining the strength of both attention and recurrent models for intraoperative time series.

Time Series Time Series Analysis

Feedback control for distributed ledgers: An attack mitigation policy for DAG-based DLTs

no code implementations25 Apr 2022 Pietro Ferraro, Andreas Penzkofer, Christopher King, Robert Shorten

In this paper we present a feedback approach to the design of an attack mitigation policy for DAG-based Distributed Ledgers.

Reinforcement Learning with Algorithms from Probabilistic Structure Estimation

1 code implementation15 Mar 2021 Jonathan P. Epperlein, Roman Overko, Sergiy Zhuk, Christopher King, Djallel Bouneffouf, Andrew Cullen, Robert Shorten

In some cases, the environment is not influenced by the actions of the RL agent, in which case the problem can be modeled as a contextual multi-armed bandit and lightweight myopic algorithms can be employed.

reinforcement-learning Reinforcement Learning (RL)

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