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The International Journal of the Royal Society of Thailand
              Volume XI - 2019



              often needs large storage sever requiring high velocity of data transfer. Data may
              be presented with variety in forms such as structured or non-structured data.
              Some data may change consistency overtime (variability) and some may need to

              be verified before use (veracity) (Archenaa and Anita, 2015). The origins of big
              data were summarized in Figure 5.


























              Figure 5 The source of big data. Tissue samples from patients or volunteers were stored in
              biobank and converted into interested genetic code by various genetic methods. Another source
              was from electronic medical records containing text data, picture data and audio data. Specific
              real-world data, such as insurance document, can also be used as a source of big data.

                      Artificial intelligence (AI) is the form of computations that possible to
              perceive, reason, and act (Niel and Bastard, 2019). Algorithms use in AI are random
              forest, support vector machine and artificial neural networks (ANN). ANN consist
              of 3 layers including input layer, hidden layer and output layer. Each artificial

              neuron is interconnected to all other neurons in the next layer. They received
              multiple weighted inputs to create outputs. AI can perform various functions
              after trained by using adequately large data sets. These data sets are made up of
              training batches and testing batches, are used to verify performance of trained AI.

                      Deep learning is defined as a form of machine learning algorithm based
              on neural networks containing multiple layers of nonlinear processing units for
              feature extraction and transformation. It is often necessary in processing of complex
              data such as sounds and images. With deep learning, AI can perform more complex
              tasks with lower computational resource requirement. These can be achieved
              by adding more hidden layers of neuron into ANN. Examples of deep learning




              64                                                Precision Medicine in Acute kidney injury




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