# DMC-TPE: tree-structured Parzen estimator-based efficient data assimilation method for phase-field simulation of solid-state sintering

https://mdr.nims.go.jp/datasets/1d0706d4-86d8-4b48-856a-f0f0f8a4c213

## File

- [DMC TPE tree structured Parzen estimator based efficient data assimilation method for phase field simulation of solid state sintering.pdf](https://mdr.nims.go.jp/filesets/915e8532-5070-498b-bcc8-98c0ceadeb61/download) ([Detail](https://mdr.nims.go.jp/filesets/915e8532-5070-498b-bcc8-98c0ceadeb61.md))

## Id

1d0706d4-86d8-4b48-856a-f0f0f8a4c213

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-08-27T03:44:33.850751Z

## Updated at

2026-08-27T07:27:13.564218Z

## Published at

2026-08-27T09:27:16.954162Z

## Doi



## First published url

https://doi.org/10.1080/27660400.2023.2239133

## Date published

2023-12-31

## Recorded date published

2023-12-31

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: 'DMC-TPE: tree-structured Parzen estimator-based efficient data assimilation
    method for phase-field simulation of solid-state sintering'
  title_type: original
  lang: en

## Description

- description: In phase-field simulations, accurate material parameters are required
    to quantitatively predict microstructural evolutions. Non-sequential data assimilations
    enable the estimation of unknown material parameters by minimizing a cost function
    that represents the misfit between numerical simulation results and time-series
    observation data. In this study, a new non-sequential data assimilation method
    Minimizing the Cost function using tree-structured Parzen estimator (TPE), namely
    DMC-TPE, with higher estimation accuracy than that of a conventional method (DMC-Bayesian
    optimization (BO)) is developed. The estimation accuracy of DMC-TPE is compared
    with that of DMC-BO via numerical experiments, where these methods are applied
    to a phase-field simulation of solid-state sintering. The comparison results demonstrate
    that the estimation accuracy of DMC-TPE is higher than that of DMC-BO, specifically
    in cases where numerous parameters have to be estimated, because TPE can continuously
    minimize the cost function by increasing the number of iterative minimization
    calculations. Furthermore, DMC-TPE provides less scatter in the estimation results
    than that in the case of DMC-BO. The DMC-TPE developed herein leads to highly
    accurate PF simulations of microstructural evolution by simultaneously estimating
    the states and many unknown material parameters with high accuracies based on
    experimental data.
  description_type: abstract
  lang: und

## Creator

- name: Akimitsu Ishii
  role: author
  orcid: https://orcid.org/0000-0002-9261-4047
  organization: National Institute for Materials Science
- name: Akiyasu Yamamoto
  role: author
- name: Akinori Yamanaka
  role: author

## Contact agent



## Publisher

organization: Informa UK Limited

## Managing organization



## Keyword

- subject: Data assimilation
  schema: not_defined
- subject: Bayesian optimization
  schema: not_defined
- subject: Phase-field simulation
  schema: not_defined
- subject: Sintering
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2023-07-28

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: 'Science and Technology of Advanced Materials: Methods'
  issn: '27660400'
  volume: '3'
  issue: '1'
  article_number: '2239133'

## Conference



## Related item



## Funding

- funder_name: Strategic Basic Research Programs
- identifier: JPMJCR18J4
  funder_name: Core Research for Evolutional Science and Technology

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 915e8532-5070-498b-bcc8-98c0ceadeb61
  filename: DMC TPE tree structured Parzen estimator based efficient data assimilation
    method for phase field simulation of solid state sintering.pdf
  content_type: application/pdf
  size: 8729608
  md5: 77b7e74c750984fc1deecf7c552b2d57

## Thumbnail

fileset_id: 915e8532-5070-498b-bcc8-98c0ceadeb61
filename: DMC TPE tree structured Parzen estimator based efficient data assimilation
  method for phase field simulation of solid state sintering.pdf