Geodesic
Complexity of primal-dual interior-point algorithm for linear programming based on a new class of kernel functions
Kybernetika, Tome 59 (2023) no. 6, pp. 827-860.

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In this paper, we first present a polynomial-time primal-dual interior-point method (IPM) for solving linear programming (LP) problems, based on a new kernel function (KF) with a hyperbolic-logarithmic barrier term. To improve the iteration bound, we propose a parameterized version of this function. We show that the complexity result meets the currently best iteration bound for large-update methods by choosing a special value of the parameter. Numerical experiments reveal that the new KFs have better results comparing with the existing KFs including $\log t$ in their barrier term. To the best of our knowledge, this is the first IPM based on a parameterized hyperbolic-logarithmic KF. Moreover, it contains the first hyperbolic-logarithmic KF (Touil and Chikouche in Filomat 34:3957-3969, 2020) as a special case up to a multiplicative constant, and improves significantly both its theoretical and practical results.
DOI : 10.14736/kyb-2023-6-0827
Classification : 90C05, 90C51
Keywords: linear programming; primal-dual interior-point methods; kernel function; complexity analysis; large and small-update methods 
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     title = {Complexity of primal-dual interior-point algorithm for linear programming based on a new class of kernel functions},
     journal = {Kybernetika},
     pages = {827--860},
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Guerdouh, Safa; Chikouche, Wided; Touil, Imene; Yassine, Adnan. Complexity of primal-dual interior-point algorithm for linear programming based on a new class of kernel functions. Kybernetika, Tome 59 (2023) no. 6, pp. 827-860. doi : 10.14736/kyb-2023-6-0827. http://geodesic.mathdoc.fr/articles/10.14736/kyb-2023-6-0827/

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