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9.4 PROPOSED INTELLIGENT-BASED HRS           241




               For example, when monitoring the health progress of patients and providing suggestions for treatment,
               keep track of activities. In the case of food restriction for patients, the system has a difficult time mea-
               suring its effectiveness, as some patients might eat without informing the system. Some health recom-
               mendation may also aim at long-term behavioral changes and these must be tracked somehow, too.
               Once the treatment is administrated, the system can continue monitoring the patient to determine if
               treatment is effective. The system should also take steps to promote faster healing. We must consider
               those recommendations that do not cause any side effect because neglecting one health parameter can
               lead to another disease that is, changing food habits may lead to loss in body weight (a superficial health
               parameter), keeping our body fit but neglecting a balanced diet can hamper growth and body metab-
               olism. Before applying this approach in practical use, it must be ensured that the systems are customer
               friendly and reliable. We must ensure that the system delivers real time results.





               9.4 PROPOSED INTELLIGENT-BASED HRS
               In this chapter, we put forward an intelligent-based HRS (shown in Fig. 9.5) supplied with big data
               analytic tools to study and research health records of patients, assess risk and the severity of different
               diseases, and then provide recommendations based on outcomes of prediction. This framework consists
               of four main modules: the first part involves obtaining and accumulating the data from different sources
               such as hospitals and medical centers, community health centers etc. Every patient has his own digital
               record that includes demographics, patient prescription, previous medical history, lab tests, clinical test
               results etc. Records are shared via secure centralized systems and are available for persons working in
               healthcare centers. Every record is comprised of one updatable file, which means that doctors can carry
               out changes and makes modifications with secured access. Since there are no duplicate files, there is no
               need to worry about data replication. The second part of the framework refers to data preprocessing.
               This part is responsible for processing and analyzing the huge quantities of collected data. Different
               techniques such as attribute selection methods and data transformation methods are used to determine
               and clean unnecessary data and find outliers. Insignificant and redundant attributes from data that do
               not contribute to the accuracy of a predictive model are removed. This process is also known as data
               cleaning. Data cleaning is essential to evade the formation of obscure or doubtful models and improve
               the learning model performance. Furthermore, the data is also converted into a form appropriate for
               classification. Therefore, data cleaning is a fundamentally important measure taken on raw data to pre-
               pare it for the next stage.


                                                                      Recommender
                   Data sources    Data processing   Data analysis      engine       Data visualization

                                                                                     Suitable medicine
                     Hospitals    Data selection  Big data   Medical image   Recommendations   recommendations
                      Clinics       Data     tools(Hadoop   diagnosis                Health insurance
                                                                                         plan
                                  transformation  eco-  Identification of
                    Patients records         components)  high-risk patients         Health monitoring
                                 Outlier analysis     Usage patterns of                of patients
                    Biometric scans                      drugs                        Medical reports
               FIG. 9.5
               Health recommendation system (HRS) framework.
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