Vol. 7 No. 2 (2026)

Articles

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  Fuzzy spatial assignment and NSGA-II approach to multi-objective covering problems in substation expansion planning

  👥 Eduard Nugroho Theopilus⁽¹⁾★, Budi Santosa⁽²⁾

  (1) Institut Teknologi Sepuluh Nopember
  (2) Institut Teknologi Sepuluh Nopember

  • PDF

  📈 Abstract : 45    📥 PDF : 33

  DOI 10.12928/ijio.v7i2.14108 📄 63-81
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  Production cost minimization through optimization

  👥 Shibbir Ahmad⁽¹⁾★, Md. Kamruzzaman⁽²⁾

  (1) Dhaka University of Engineering & Technology
  (2) Dhaka University of Engineering & Technology

  • PDF

  📈 Abstract : 40    📥 PDF : 7

  DOI 10.12928/ijio.v7i2.14381 📄 82-102
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  Portofolio optimization with cardinality and minimum return constraints on the LQ45 index using genetic algorithm

  👥 Firsta Grandicha Tirafany⁽¹⁾★, Ezra Putranda Setiawan⁽²⁾

  (1) Yogyakarta State University
  (2) Yogyakarta State University

  • PDF

  📈 Abstract : 44    📥 PDF : 34

  DOI 10.12928/ijio.v7i2.13238 📄 103-121
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  Decision support for sustainable household waste processing: a comparative evaluation of ahp and fuzzy ahp

  👥 Muhammad Faishal⁽¹⁾★, Hayati Mukti Asih⁽²⁾, Endah Utami⁽³⁾, Effendi Mohamad⁽⁴⁾

  (1) Universitas Ahmad Dahlan
  (2) Universitas Ahmad Dahlan
  (3) Universitas Ahmad Dahlan
  (4) Universiti Teknikal Malaysia Melaka

  • PDF

  📈 Abstract : 55    📥 PDF : 38

  DOI 10.12928/ijio.v7i2.17417 📄 122-131
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  Optimizing operational performance through logistics and supply chain system effectiveness: evidence from Indonesian automotive manufacturing firms

  👥 Ari Andriansyah⁽¹⁾★

  (1) Universitas Logistik dan Bisnis Internasional

  • PDF

  📈 Abstract : 16    📥 PDF : 6

  DOI 10.12928/ijio.v7i2.15845 📄 132-144