User profiles for "author:Keqin Liu"

Keqin Liu

PostDoc, Peking University
Verified email at pku.edu.cn
Cited by 504

An optoelectronic synapse based on α-In2Se3 with controllable temporal dynamics for multimode and multiscale reservoir computing

K Liu, T Zhang, B Dang, L Bao, L Xu, C Cheng… - Nature …, 2022 - nature.com
Neuromorphic computing based on emerging devices could overcome the von Neumann
bottleneck—the restriction created by having to transfer data between memory and …

Distributed learning in multi-armed bandit with multiple players

K Liu, Q Zhao - IEEE transactions on signal processing, 2010 - ieeexplore.ieee.org
We formulate and study a decentralized multi-armed bandit (MAB) problem. There are M
distributed players competing for N independent arms. Each arm, when played, offers iid …

On myopic sensing for multi-channel opportunistic access: structure, optimality, and performance

Q Zhao, B Krishnamachari, K Liu - IEEE Transactions on …, 2008 - ieeexplore.ieee.org
We consider a multi-channel opportunistic communication system where the states of these
channels evolve as independent and statistically identical Markov chains (the Gilbert-Elliot …

Indexability of restless bandit problems and optimality of whittle index for dynamic multichannel access

K Liu, Q Zhao - IEEE Transactions on Information Theory, 2010 - ieeexplore.ieee.org
In this paper, we consider a class of restless multiarmed bandit processes (RMABs) that
arises in dynamic multichannel access, user/server scheduling, and optimal activation in …

Prenatal exposure to bisphenol A and neonatal health outcomes: A systematic review

J Guo, K Liu, J Yang, Y Su - Environmental Pollution, 2023 - Elsevier
Bisphenol A (BPA) is an endocrine-disrupting chemical substance responsible for the
composition of polycarbonate plastics and epoxy resins. Early life and pregnancy are …

[HTML][HTML] Overview of vaccine adjuvants

Z Wu, K Liu - Medicine in Drug Discovery, 2021 - Elsevier
Adjuvants are essential components of vaccines that have been particularly effective at
promoting protective humoral immunity to infectious diseases and preventing mortality and …

Multilayer Reservoir Computing Based on Ferroelectric α‐In2Se3 for Hierarchical Information Processing

K Liu, B Dang, T Zhang, Z Yang, L Bao, L Xu… - Advanced …, 2022 - Wiley Online Library
Dynamic physical systems such as reservoir computing (RC) architectures show a great
prospect in temporal information processing, whereas hierarchical information processing …

Learning in a changing world: Restless multiarmed bandit with unknown dynamics

H Liu, K Liu, Q Zhao - IEEE Transactions on Information Theory, 2012 - ieeexplore.ieee.org
We consider the restless multiarmed bandit problem with unknown dynamics in which a
player chooses one out of N arms to play at each time. The reward state of each arm transits …

NARROMI: a noise and redundancy reduction technique improves accuracy of gene regulatory network inference

X Zhang, K Liu, ZP Liu, B Duval, JM Richer… - …, 2013 - academic.oup.com
Motivation: Reconstruction of gene regulatory networks (GRNs) is of utmost interest to
biologists and is vital for understanding the complex regulatory mechanisms within the cell …

Deterministic sequencing of exploration and exploitation for multi-armed bandit problems

S Vakili, K Liu, Q Zhao - IEEE Journal of Selected Topics in …, 2013 - ieeexplore.ieee.org
In the Multi-Armed Bandit (MAB) problem, there is a given set of arms with unknown reward
models. At each time, a player selects one arm to play, aiming to maximize the total …