Bagaimana menghitung specificity, sensitivity dan Positive Predicted Value ?

Gambar ini menjelaskan secara sederhana, bagaimana sensitivity, specificity dan positive predicted value dihitung. Misalnya pada sistem diagnosis Malaria, di mana deteksi Malaria dilakukan pada satuan sel darah merah diperoleh hasil sebagai berikut :

  • Dari 3 sel darah merah yang positif terkena Malaria , dua diantaranya berhasil diidentifikasi oleh sistem. True Positive = 2, False Negative = 1.
  • Empat sel darah merah yang sehat, tetapi dua di antaranya diidentifikasi oleh sistem sebagai sel yang terinfeksi plasmodia. True Negative = 2 dan False Positive = 2
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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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