English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 54931/89277 (62%)
造访人次 : 10601947      在线人数 : 30
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻

    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/68728

    题名: Missing data treatment and data fusion toward travel time estimation for ATIS
    作者: Wen, Yuh-horng;Lee, Tsu-tian;Cho, Hsun-jung
    贡献者: 淡江大學運輸管理學系
    关键词: missing data treatment;data fusion;travel time estimation;grey and neural network models;ATIS
    日期: 2005-09-01
    上传时间: 2011-10-23 13:43:59 (UTC+8)
    出版者: Eastern Asia Society for Transportation Studies
    摘要: This study develops a travel time estimation process by integrating a missing data treatment and data-fusion-based approaches. In missing data treatment, this study develops a grey time-series model and a grey-theory-based pseudo-nearest-neighbor method to recover, respectively, temporal and spatial missing values in traffic detector data sets. Both spatial and temporal patterns of traffic data are also considered in travel time data fusion. In travel time data fusion, this study presents a speed-based link travel time extrapolation model for analytical travel time estimation and further develops a recurrent neural network (RNN) integrated with grey models for real-time travel time estimation. In the case study, field data from the national freeway no.1 in Taiwan is used as a case study for testing the proposed models. Study results showed that the grey-theory-based missing data treatment models were accurate for recovering missing values. The grey-based RNN models were capable of accurately predicting travel times. Consequently, the results of this study indicated that the proposed missing data treatment and data fusion approaches can ensure the accuracy of travel time estimation with incomplete data sets, and are therefore suited to implementation for ATIS. © 2005 Eastern Asia Society for Transportation Studies.
    關聯: Journal of the Eastern Asia Society for Transportation Studies, Vol. 6, pp.2546-2560 (2005)
    DOI: 10.11175/easts.6.2546
    显示于类别:[運輸管理學系暨研究所] 期刊論文


    档案 描述 大小格式浏览次数



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈