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function from the given data, as shown by the solid line in the given graph. The blue dots shown in the graph are
        the data values and the solid line here represents the mapping done for them. With the help of this mapping
        function, we can predict the future data. It works with continuous data.


                                                 Classification

                                                 Classification  is  another  rule-based  AI  model.  It  is  a  systematic
                                                 grouping of observations in categories, something like categorising
                                                 plants, animals in different taxonomies by biologists. In classification,
                                                 you teach the machine to perform with labelled data. Testing data is
                                                 then  classified  as  one  of  the  labels  of  the  training  dataset.  The
                                                 algorithm is able to determine which set a given data point belongs
                                                 to by means of a classification function represented by the dotted

        line. The model classifies datasets according to the rules given to it.

        Clustering

        Clustering is a machine learning approach where the machine partitions
        the dataset into different clusters or categories based on machine-
        generated algorithms. The data fed to such a model is usually unlabelled
        or random and thus the developer feeds in the data directly into the
        machine and instructs it to build its own algorithm. The machine then
        forms a pattern or cluster based on training data and groups those that
        follow the same pattern. The best clustering is the one that minimizes

        the error.  Clustering works on discrete dataset.

                 Human Nervous System


        The Human Nervous System is made up of a complex network of specialised nerve cells known as neurons. Neurons
        are the  building blocks of the nervous system and are responsible for communicating messages throughout the
        body. At birth, the human brain consists of an estimated 100 billion neurons. Each firing off 5–50 messages or
        signals per second. If you touch something hot, that information goes from your fingertips to your brain, and then
        your brain says “move your hand away otherwise it will burn!” and sends information to your fingertips telling
        them to move away.
        A neuron is made up of a cell body, an axon and dendrites. The cell body has genetic information, maintains the
        neuron’s structure, and provides energy during the transmission of signals.
         An axon is an elongated structure which joins the cell body. Dendrites are fibrous roots that branch out from the cell
        body.
        There are three types of neurons in our body:
           • Sensory neuron: It carries the sensory signals from sensory organs to the brain. It gets activated when you
          touch, smell, hear, see or feel something.
           • Motor Neuron: It carries the signal from the brain or spinal cord to the organs, glands or muscles to carry out
          voluntary or involuntary movement.
           • Interneuron: They connect the sensory and motor neurons to help in the transmission of signals and form a
          complex internal neuron network.




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