Results 91 to 100 of about 63,948 (252)

Decoding Chinese stock market returns: Three-state hidden semi-Markov model [PDF]

open access: yesPacific-Basin Finance Journal, 2017
In this paper, we employ a three-state hidden semi-Markov model (HSMM) to explain the time-varying distribution of the Chinese stock market returns since 2005. Our results indicate that the time-varying distribution depends on the hidden states, which are represented by three market conditions, namely the bear, sidewalk, and bull markets.
Liu, Zhenya, Wang, Shixuan
openaire   +3 more sources

Plant pathogen profiling with the EpiPvr package

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract This study introduces a flexible framework for epidemiological profiling of insect‐borne plant pathogens (IBPPs), utilising readily available experimental data. The framework is applicable to most IBPPs transmitted by insects feeding on plant veins, with particular relevance to whitefly‐borne viruses that impact cassava production in sub ...
Ruairí Donnelly   +2 more
wiley   +1 more source

Maximum likelihood estimation for hidden semi-Markov models

open access: yesComptes Rendus. Mathématique, 2006
In this Note we consider a discrete-time hidden semi-Markov model and we prove that the nonparametric maximum likelihood estimators for the characteristics of such a model have nice asymptotic properties, namely consistency and asymptotic normality.
Barbu, Vlad, Limnios, Nikolaos
openaire   +2 more sources

Medical Knowledge Integration Into Reinforcement Learning Algorithms for Dynamic Treatment Regimes

open access: yesInternational Statistical Review, EarlyView.
Summary The goal of precision medicine is to provide individualised treatment at each stage of chronic diseases, a concept formalised by dynamic treatment regimes (DTR). These regimes adapt treatment strategies based on decision rules learned from clinical data to enhance therapeutic effectiveness.
Sophia Yazzourh   +3 more
wiley   +1 more source

Finite-Time Asynchronous H Control for Non-Homogeneous Hidden Semi-Markov Jump Systems

open access: yesMathematics
This article explores the finite-time control problem associated with a specific category of non-homogeneous hidden semi-Markov jump systems. Firstly, a hidden semi-Markov model is designed to characterize the asynchronous interactions that occur between
Qian Wang   +3 more
doaj   +1 more source

Novel approach to modeling high-frequency activity data to assess therapeutic effects of analgesics in chronic pain conditions

open access: yesScientific Reports, 2021
Osteoarthritis (OA) is a chronic condition often associated with pain, affecting approximately fourteen percent of the population, and increasing in prevalence.
Zekun Xu   +3 more
doaj   +1 more source

A decision-theoretic approach for segmental classification

open access: yes, 2013
This paper is concerned with statistical methods for the segmental classification of linear sequence data where the task is to segment and classify the data according to an underlying hidden discrete state sequence.
Holmes, Christopher C., Yau, Christopher
core   +1 more source

Conversational AI Agents: The Effect of Process and Outcome Variation on Anthropomorphism and Trust

open access: yesInformation Systems Journal, EarlyView.
ABSTRACT Organisations increasingly deploy conversational AI agents (CAs) in agentic roles where behavioural variations are inevitable. Prior work often conflates two distinct forms of variation: outcome variation (where success fluctuates) and process variation (where the path to completion varies).
Kambiz Saffarizadeh, Mark Keil
wiley   +1 more source

A Logical Hierarchical Hidden Semi-Markov Model for Team Intention Recognition

open access: yesDiscrete Dynamics in Nature and Society, 2015
Intention recognition is significant in many applications. In this paper, we focus on team intention recognition, which identifies the intention of each team member and the team working mode.
Shi-guang Yue   +3 more
doaj   +1 more source

Breeding 5.0: Artificial intelligence (AI)‐decoded germplasm for accelerated crop innovation

open access: yesJournal of Integrative Plant Biology, EarlyView.
ABSTRACT Crop breeding technologies are vital for global food security. While traditional methods have improved yield, stress tolerance, and nutrition, rising challenges such as climate instability, land loss, and pest pressure now demand new solutions.
Jiayi Fu   +4 more
wiley   +1 more source

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