Feature Selection & Feature Extraction

patrecog

Sesuai dengan agenda saya, minggu ini rencananya saya membahas mengenai Feature Subset Selection & Feature Extraction di kelas Pattern Recognition SGU (S1, semester 4). Untuk pembahasan Kernel based Machine Learning saya skip. Pertimbangan saya, dengan keterbatasan waktu, cukup bagi anak-anak untuk memahami k-Nearest Neighbor Classifier, Multilayer Perceptron + backpropagation algorithm, serta Naive Bayes. Selanjutnya lebih baik difokuskan pada topik Feature Extraction dan Selection, karena topik ini sangat vital. Ada beberapa yang ingin saya bahas:

  • mengapa normalisasi nilai feature perlu dilakukan ?
  • teknik melakukan normalisasi nilai feature & perlakuan berbeda untuk feature nominal vs ratio
  • transformasi feature space : antara selection vs extraction
  • feature subset selection : wrapper vs filter approach, classifier independent vs classifier dependent
  • feature extraction : definisi dan contoh (misalnya dimensionality reduction pada Principal Component Analysis)

Beberapa literatur yang saya pakai:

  1.  Wakariyasui Pataan Ninshiki, Ishii et al. Ohmsha, 1998
  2. Handbook of Pattern Recognition & Image Processing, Tzay Y. Young & King Sun Fu,  Academic Press, 1986

Tentang Anto Satriyo Nugroho

My name is Anto Satriyo Nugroho. I am working as research scientist at Center for Information & Communication Technology, Agency for the Assessment & Application of Technology (PTIK-BPPT : Pusat Teknologi Informasi & Komunikasi, Badan Pengkajian dan Penerapan Teknologi). I obtained my doctoral degree (Dr.Eng) from Nagoya Institute of Technology, Japan in 2003. My office is located in Serpong, Tangerang Selatan City.Since 2015, I was appointed as Program Director of R&D activities in Intelligent Computing Laboratory (former name: Digital Signal Processing Laboratory). The activities in the laboratory are organized into three groups : (i) Natural Language Processing (ii) Multimodal biometrics Identification (iii) ICT solution for Tropical Disease. I also enjoy to teach the students, as a part time lecturer in Swiss German University Serpong & UNS Sebelas Maret Surakarta. Should you want to know further information on my academic works, please visit my professional site at http://asnugroho.net
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