{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,17]],"date-time":"2026-02-17T18:53:48Z","timestamp":1771354428811,"version":"3.50.1"},"reference-count":0,"publisher":"International Academic Press","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Stat., optim. inf. comput."],"abstract":"<jats:p>In a system of regression models, finding a feasible shrinkage is demanding since the covariance structure is unknown and cannot be ignored. On the other hand, specifying sub-space restrictions for adequate shrinkage is vital. This study proposes feasible shrinkage estimation strategies where the sub-space restriction is obtained from LASSO. Therefore, some feasible LASSO-based Stein-type estimators are introduced, and their asymptotic performance is studied. Extensive Monte Carlo simulation and a real-data experiment support the superior performance of the proposed estimators compared to the feasible generalized least-squared estimator.<\/jats:p>","DOI":"10.19139\/soic-2310-5070-1589","type":"journal-article","created":{"date-parts":[[2023,6,3]],"date-time":"2023-06-03T13:03:48Z","timestamp":1685797428000},"page":"258-275","source":"Crossref","is-referenced-by-count":3,"title":["Feasible Stein-Type and Preliminary Test Estimations in the System Regression Model"],"prefix":"10.19139","volume":"11","author":[{"given":"Mina","family":"Norouzirad","sequence":"first","affiliation":[]},{"given":"Mohammad","family":"Arashi","sequence":"additional","affiliation":[]},{"given":"Filipe J.","family":"Marques","sequence":"additional","affiliation":[]},{"given":"Naushad A.","family":"Mamod Khan","sequence":"additional","affiliation":[]}],"member":"8221","published-online":{"date-parts":[[2022,10,21]]},"container-title":["Statistics, Optimization &amp; Information Computing"],"original-title":[],"link":[{"URL":"http:\/\/www.iapress.org\/index.php\/soic\/article\/download\/1589\/965","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/www.iapress.org\/index.php\/soic\/article\/download\/1589\/965","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,6,3]],"date-time":"2023-06-03T13:04:04Z","timestamp":1685797444000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.iapress.org\/index.php\/soic\/article\/view\/1589"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,10,21]]},"references-count":0,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2023,3,31]]}},"URL":"https:\/\/doi.org\/10.19139\/soic-2310-5070-1589","relation":{},"ISSN":["2310-5070","2311-004X"],"issn-type":[{"value":"2310-5070","type":"electronic"},{"value":"2311-004X","type":"print"}],"subject":[],"published":{"date-parts":[[2022,10,21]]}}}