A full-Newton step interior-point algorithm based on modified Newton direction

The central path plays a very important role in interior-point methods. By an equivalent reformulation of the central path, we obtain a new search direction which targets at a small neighborhood of the central path. For a full-Newton step interior-point algorithm based on this search direction, the...

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Veröffentlicht in:Operations research letters 2011-09, Vol.39 (5), p.318-322
Hauptverfasser: Zhang, Lipu, Xu, Yinghong
Format: Artikel
Sprache:eng
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Zusammenfassung:The central path plays a very important role in interior-point methods. By an equivalent reformulation of the central path, we obtain a new search direction which targets at a small neighborhood of the central path. For a full-Newton step interior-point algorithm based on this search direction, the complexity bound of the algorithm is the best known for linear optimization. ► The central path plays a very important role in interior-point methods. ► By an equivalent reformulation of the central path, we obtain a new search direction. ► The new direction targets a small neighborhood of the central path. ► Based on this search direction, we present a full-Newton step interior-point algorithm. ► The complexity bound of the algorithm is the best known for linear optimization.
ISSN:0167-6377
1872-7468
DOI:10.1016/j.orl.2011.06.006