{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,9,20]],"date-time":"2024-09-20T16:52:05Z","timestamp":1726851125073},"reference-count":45,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2022,1,25]],"date-time":"2022-01-25T00:00:00Z","timestamp":1643068800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100000054","name":"National Cancer Institute","doi-asserted-by":"publisher","award":["CA206171","CA220004"],"id":[{"id":"10.13039\/100000054","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"Objective: As an effective lesion heterogeneity depiction, texture information extracted from computed tomography has become increasingly important in polyp classification. However, variation and redundancy among multiple texture descriptors render a challenging task of integrating them into a general characterization. Considering these two problems, this work proposes an adaptive learning model to integrate multi-scale texture features. Methods: To mitigate feature variation, the whole feature set is geometrically split into several independent subsets that are ranked by a learning evaluation measure after preliminary classifications. To reduce feature redundancy, a bottom-up hierarchical learning framework is proposed to ensure monotonic increase of classification performance while integrating these ranked sets selectively. Two types of classifiers, traditional (random forest + support vector machine)- and convolutional neural network (CNN)-based, are employed to perform the polyp classification under the proposed framework with extended Haralick measures and gray-level co-occurrence matrix (GLCM) as inputs, respectively. Experimental results are based on a retrospective dataset of 63 polyp masses (defined as greater than 3 cm in largest diameter), including 32 adenocarcinomas and 31 benign adenomas, from adult patients undergoing first-time computed tomography colonography and who had corresponding histopathology of the detected masses. Results: We evaluate the performance of the proposed models by the area under the curve (AUC) of the receiver operating characteristic curve. The proposed models show encouraging performances of an AUC score of 0.925 with the traditional classification method and an AUC score of 0.902 with CNN. The proposed adaptive learning framework significantly outperforms nine well-established classification methods, including six traditional methods and three deep learning ones with a large margin. Conclusions: The proposed adaptive learning model can combat the challenges of feature variation through a multiscale grouping of feature inputs, and the feature redundancy through a hierarchal sorting of these feature groups. The improved classification performance against comparative models demonstrated the feasibility and utility of this adaptive learning procedure for feature integration.<\/jats:p>","DOI":"10.3390\/s22030907","type":"journal-article","created":{"date-parts":[[2022,1,26]],"date-time":"2022-01-26T02:07:11Z","timestamp":1643162831000},"page":"907","source":"Crossref","is-referenced-by-count":6,"title":["An Adaptive Learning Model for Multiscale Texture Features in Polyp Classification via Computed Tomographic Colonography"],"prefix":"10.3390","volume":"22","author":[{"given":"Weiguo","family":"Cao","sequence":"first","affiliation":[{"name":"Department of Radiology, Stony Brook University, Stony Brook, NY 11794, USA"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-3982-1776","authenticated-orcid":false,"given":"Marc J.","family":"Pomeroy","sequence":"additional","affiliation":[{"name":"Department of Radiology, Stony Brook University, Stony Brook, NY 11794, USA"},{"name":"Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794, USA"}]},{"given":"Shu","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Radiology, Stony Brook University, Stony Brook, NY 11794, USA"}]},{"given":"Jiaxing","family":"Tan","sequence":"additional","affiliation":[{"name":"Department of Computer Science, City University of New York, New York, NY 10314, USA"}]},{"given":"Zhengrong","family":"Liang","sequence":"additional","affiliation":[{"name":"Department of Radiology, Stony Brook University, Stony Brook, NY 11794, USA"},{"name":"Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY 11794, USA"}]},{"given":"Yongfeng","family":"Gao","sequence":"additional","affiliation":[{"name":"Department of Radiology, Stony Brook University, Stony Brook, NY 11794, USA"}]},{"given":"Almas F.","family":"Abbasi","sequence":"additional","affiliation":[{"name":"Department of Radiology, Stony Brook University, Stony Brook, NY 11794, USA"}]},{"given":"Perry J.","family":"Pickhardt","sequence":"additional","affiliation":[{"name":"Department of Radiology, School of Medicine, University of Wisconsin, Madison, WI 53792, USA"}]}],"member":"1968","published-online":{"date-parts":[[2022,1,25]]},"reference":[{"key":"ref_1","unstructured":"(2018). 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