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Bioinform. Comput. Biol."],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:p> Gene regulatory networks (GRNs) reveal the regulatory interactions among genes and provide a visual tool to explain biological processes. However, how to identify direct relations among genes from gene expression data in the case of high-dimensional and small samples is a critical challenge. In this paper, we proposed a new GRN inference method based on a modified adaptive least absolute shrinkage and selection operator (MALasso). MALasso expands the number of samples based on the distance correlation and defines a new weighting manner for adaptive lasso to remove false positive edges of the networks in the iterative process. Simulated data and gene expression data from DREAM challenge were used to validate the performance of the proposed method MALasso. The comparison results among MALasso, adaptive lasso and other six state-of-the-art methods show that MALasso outperformed the competition methods in AUROCC and AUPRC in most cases and had a better ability to distinguish direct edges from indirect ones. Hence, by modifying the adaptive weighting manner of adaptive lasso, MALasso can detect linear and nonlinear relations, remove the false positive edges and identify direct relations among genes more accurately. <\/jats:p>","DOI":"10.1142\/s0219720024500264","type":"journal-article","created":{"date-parts":[[2024,10,30]],"date-time":"2024-10-30T11:42:47Z","timestamp":1730288567000},"source":"Crossref","is-referenced-by-count":0,"title":["Gene regulatory network inference based on modified adaptive lasso"],"prefix":"10.1142","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-1139-3133","authenticated-orcid":false,"given":"Chao","family":"Li","sequence":"first","affiliation":[{"name":"College of Information Engineering, Dalian Key Laboratory of Smart Fisheries, Dalian Ocean University, Dalian 116023, Liaoning Province, P. R. China"},{"name":"School of Computer Science & Technology, Dalian University of Technology, Dalian 116024, Liaoning Province, P. R. 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