國立虎尾科技大學 |

Data fusion : = A first step in decision informatics.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Data fusion :/
其他題名:	A first step in decision informatics.
作者:	Hu, Jiaqi.
面頁冊數:	1 online resource (89 pages)
附註:	Source: Dissertation Abstracts International, Volume: 70-05, Section: B, page: 3150.
Contained By:	Dissertation Abstracts International70-05B.
標題:	Systems science. -
電子資源:	click for full text (PQDT)
ISBN:	9781109141832

Data fusion : = A first step in decision informatics.
Hu, Jiaqi.

Data fusion :A first step in decision informatics. - 1 online resource (89 pages)

Source: Dissertation Abstracts International, Volume: 70-05, Section: B, page: 3150.

Thesis (Ph.D.)--Rensselaer Polytechnic Institute, 2008.

Includes bibliographical references

This research proposes to develop data fusion tools that allow for the simultaneous utilization of qualitative and quantitative data in clustering analysis. From the data fusion perspective, the integration of multiple data sources can happen at different levels including data level, feature level, similarity level and decision level. We categorize methods that have been employed in the simultaneous utilization of qualitative and quantitative data, based on the fusion levels. We highlight two critical research areas where multiple data sources are to be fused at the feature and similarity level, respectively, which implies less information loss and potential flexible integration scheme. For the feature level fusion, we extend a probabilistic model for the mixed type data modeling to model the dependency between the qualitative and quantitative data, and embed the feature identification in the model estimation procedure. We also propose a model initialization strategy to reduce the influence of the initial configuration on the model estimation. We formulate the model estimation in an optimization framework where the penalized log likelihood is maximized. For the similarity level fusion, we propose a sub-sampling based method to search for the weight configuration in the weight sum rule. We also propose a voting based threshold strategy for noise reduction when the max rule is applied. We show through empirical studies that fusing quantitative and qualitative data can produce better results in clustering analysis than using individual data sources alone.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9781109141832Subjects--Topical Terms:

1148479
Systems science.
Index Terms--Genre/Form:

554714
Electronic books.

Data fusion : = A first step in decision informatics.
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500 $a Source: Dissertation Abstracts International, Volume: 70-05, Section: B, page: 3150.
500 $a Advisers: James M. Tien; Wai Kin (Victor) Chan.
502 $a Thesis (Ph.D.)--Rensselaer Polytechnic Institute, 2008.
504 $a Includes bibliographical references
520 $a This research proposes to develop data fusion tools that allow for the simultaneous utilization of qualitative and quantitative data in clustering analysis. From the data fusion perspective, the integration of multiple data sources can happen at different levels including data level, feature level, similarity level and decision level. We categorize methods that have been employed in the simultaneous utilization of qualitative and quantitative data, based on the fusion levels. We highlight two critical research areas where multiple data sources are to be fused at the feature and similarity level, respectively, which implies less information loss and potential flexible integration scheme. For the feature level fusion, we extend a probabilistic model for the mixed type data modeling to model the dependency between the qualitative and quantitative data, and embed the feature identification in the model estimation procedure. We also propose a model initialization strategy to reduce the influence of the initial configuration on the model estimation. We formulate the model estimation in an optimization framework where the penalized log likelihood is maximized. For the similarity level fusion, we propose a sub-sampling based method to search for the weight configuration in the weight sum rule. We also propose a voting based threshold strategy for noise reduction when the max rule is applied. We show through empirical studies that fusing quantitative and qualitative data can produce better results in clustering analysis than using individual data sources alone.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Systems science. $3 1148479
655 7 $a Electronic books. $2 local $3 554714
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