{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,7]],"date-time":"2025-10-07T14:41:12Z","timestamp":1759848072553,"version":"3.37.3"},"reference-count":16,"publisher":"World Scientific Pub Co Pte Ltd","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Artif. Intell. Tools"],"published-print":{"date-parts":[[2017,2]]},"abstract":"<jats:p> Combining the complementary strengths of several algorithms through portfolio approaches has been demonstrated to be effective in solving a wide range of AI problems. Notably, portfolio techniques have been prominently applied to suboptimal (satisficing) AI planning. <\/jats:p><jats:p> Here, we consider the construction of sequential planner portfolios for domainindependent optimal planning. Specifically, we introduce four techniques (three of which are dynamic) for per-instance planner schedule generation using problem instance features, and investigate the usefulness of a range of static and dynamic techniques for combining planners. Our extensive empirical analysis demonstrates the benefits of using static and dynamic sequential portfolios for optimal planning, and provides insights on the most suitable conditions for their fruitful exploitation. <\/jats:p>","DOI":"10.1142\/s0218213017600065","type":"journal-article","created":{"date-parts":[[2017,2,28]],"date-time":"2017-02-28T21:39:35Z","timestamp":1488317975000},"page":"1760006","source":"Crossref","is-referenced-by-count":11,"title":["Static and Dynamic Portfolio Methods for Optimal Planning: An Empirical Analysis"],"prefix":"10.1142","volume":"26","author":[{"given":"Mattia","family":"Rizzini","sequence":"first","affiliation":[{"name":"Dipartimento di Ingegneria dell\u2019Informazione, Universit\u00e0 degli Studi di Brescia, Brescia, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0258-7418","authenticated-orcid":false,"given":"Chris","family":"Fawcett","sequence":"additional","affiliation":[{"name":"Department of Computer Science, University of British Columbia, Vancouver, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mauro","family":"Vallati","sequence":"additional","affiliation":[{"name":"School of Computing and Engineering, University of Huddersfield, Queensgate, Huddersfield, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alfonso E.","family":"Gerevini","sequence":"additional","affiliation":[{"name":"Dipartimento di Ingegneria dell\u2019Informazione, Universit\u00e0 degli Studi di Brescia, Brescia, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Holger H.","family":"Hoos","sequence":"additional","affiliation":[{"name":"Department of Computer Science, University of British Columbia, Vancouver, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2017,2,21]]},"reference":[{"key":"p_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1015057926707"},{"key":"p_3","doi-asserted-by":"publisher","DOI":"10.1016\/S0065-2458(08)60520-3"},{"key":"p_4","doi-asserted-by":"crossref","first-page":"565","DOI":"10.1613\/jair.2490","author":"Xu L.","year":"2008","journal-title":"Journal of Artificial Intelligence Research ("},{"key":"p_5","doi-asserted-by":"publisher","DOI":"10.1017\/S1471068414000210"},{"key":"p_6","doi-asserted-by":"crossref","first-page":"639","DOI":"10.1613\/jair.4359","volume":"50","author":"Gerevini A.","year":"2014","journal-title":"Journal of Artificial Intelligence Research"},{"key":"p_7","doi-asserted-by":"publisher","DOI":"10.1142\/S021821301460032X"},{"key":"p_8","doi-asserted-by":"publisher","DOI":"10.3233\/AIC-150671"},{"key":"p_11","doi-asserted-by":"crossref","first-page":"657","DOI":"10.1613\/jair.5080","volume":"56","author":"Cenamor I.","year":"2016","journal-title":"Journal of Artificial Intelligence Research"},{"issue":"3","key":"p_13","doi-asserted-by":"crossref","first-page":"90","DOI":"10.1609\/aimag.v36i3.2571","volume":"36","author":"Vallati M.","year":"2015","journal-title":"AI Magazine"},{"key":"p_15","doi-asserted-by":"publisher","DOI":"10.1016\/j.artint.2015.01.004"},{"key":"p_17","first-page":"494","author":"Rizzini M.","year":"2015","journal-title":"Proc. of the IEEE Int. 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