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All Journal Jurnal Informatika Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Jurnal Ilmu Komputer dan Informasi Jurnal Teknik ITS Jurnal Sains dan Seni ITS IPTEK Journal of Proceedings Series Proceedings of KNASTIK TELKOMNIKA (Telecommunication Computing Electronics and Control) JUTI: Jurnal Ilmiah Teknologi Informasi Jurnal Ilmiah Mikrotek JOIN (Jurnal Online Informatika) Sewagati
Rully Soelaiman
Institut Teknologi Sepuluh Nopember
Arts Humanities Computer Science & IT Dentistry Education Engineering Languange, Linguistic, Communication & Media Library & Information Science Public Health Social Sciences Other

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Journal : Proceedings of KNASTIK

 1 
SEGMENTASI CITRA MENGGUNAKAN CLUSTERING DENGAN PENDETEKSI SADDLE POINT Saikhu, Ahmad; Soelaiman, Rully; Hambali, Imam
Proceedings of KNASTIK 2009
Publisher : Duta Wacana Christian University

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Abstract

Segmentasi citra adalah proses membagi citra ke dalam region-region yang terpisah, di mana setiap region adalahhomogen dan mengacu pada sebuah kriteria keseragaman yang jelas. Segmentasi yang dilakukan terhadap citra harus tepatagar informasi yang terkandung di dalamnya dapat diterjemahkan dengan baik.Penelitian ini menggunakan algoritma meanshift untuk segmentasi. Mean shift merupakan prosedur nonparametric sederhana untuk mengestimasi kerapatan gradient.Metode ini mempunyai parameter untuk mengontrol resolusi hasil segmentasi. Untuk mendeteksi boundary klasterdigunakan algoritma saddle point.Berdasarkan hasil uji coba menunjukkan waktu proses dan jumlah klaster dalamsegmentasi tergantung pada nilai parameter bandwidth domain spasial hs, bandwidth domain range hr, dan klaster terkecil Myang dimasukkan. Semakin besar nilai hs maka waktu segmentasi semakin lama. Semakin besar nilai hs,hr, dan M makajumlah klaster semakin sedikit. Boundary yang dihasilkan saddle point menjadi lebih halus.
IMPLEMENTATION OF BRANCH AND BOUND METHOD FOR CONVEX OPTIMIZATION PROBLEM Hariadi, Victor; Soelaiman, Rully
Proceedings of KNASTIK 2012
Publisher : Duta Wacana Christian University

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Abstract

Convex optimization is one of important areas in nonlinear programming, both fromthe mathematical and application viewpoints. Numerous real world problems arenaturally expressed as quadratic programming problems. In non linear programming,it is necessary to use a method to get global optimal value in order to not get trapped inlocal optimal value. Branch and bound method in non linear programming known asone of global optimization technique.In this research we implement branch and boundmethod with relaxation process in the problem to get global optimization from convexprogramming. The boundary of sub problem will be considering using reformulationfrom quadratic with KKT condition. Experiment was accomplished on quadra1ticprogramming problems. The results showed that using reformulation from quadraticwith Karush-Kuhn-Tucker (KKT) condition for bounding the problems helps to getoptimal solution in branch and bound method.
Co-Authors Abdul Majid Hasani ABDUL MUNIF Aby Herwendo Adhita Pratiwi Afrida Helen Ahmad Saikhu Aidy Ilmy Akbar, Rizky Januar Amalia, Ivanda Zevi Andre Setiawan Anna Kholilah Ardiana Rosita Ariadi Retno Tri Hayati Arianto Wibowo Arif Djunaidy Ary Shiddiqi Arya Widyadhana Arya Yudhi Wijaya Arya Yudhi Wijaya Baskoro, Fajar Chastine Fatichah Daniel Henry Daniel Oranova Siahaan Desy Nurbaiti Rahmi Devanda Sintaullysa Tamba Dhany Saputra Diana Purwitasari Dwi Sunaryono Dyah Sulistyo Rahayu Eddy Tjandra Eric Budiman Gosno Esther Hanaja Fajar Baskoro FX Arunanto Gracius Cagar Gunawan Hardika Khusnuliawati Hardika Khusnuliawati Hendry Setiawan I Made Agus Setiawan I Wayan Widi Pradnyana I.K. Eddy Purnama Ilham Gurat Adillion Imam Hambali Irwanto Irwanto Isye Arieshanti Ivanda Zevi Amalia Johan Varian Alfa Junian Triajianto Kadek Anggrian Mahendra Putra M Mujahidillah Maulina Nur Istiqomah Muchammad Husni Muhammad Dery Rahma Muhammad Izzuddin Muhammad Raihan Anindita Ni Made Arini WP. Nur Rosyid M Peni Sriwahyu Natasari Ramadhan Rosihadi Perdana Reva Yoga Pradana Rully A. Hendrawan Ryan Nathan Soetandyo Sarwosri Sarwosri Sheila Agustianty Suhadi Lili Tita Karlita Tohari Ahmad Tri Harsono Victor Hariadi Wahyu Suadi Wijayanti Nurul Khotimah Wilda Imama Sabilla Wiwik Anggraini Yudhi Purwananto Yuhana, Umi Laili