Page 151 - ITU KALEIDOSCOPE, ATLANTA 2019
P. 151

ICT for Health: Networks, standards and innovation




                                                                            1  2  3  4  5  6  7  8  9  10
                    Precision  Recall  F1  Precision  Recall  F1
            96.00%                  96.00%
            94.00%                  94.00%                         100%
            92.00%
                                    92.00%
            90.00%                  90.00%                         90%
            88.00%                  88.00%                         80%
            86.00%
            84.00%                  86.00%                         70%
            82.00%                  84.00%
            80.00%                  82.00%                         60%
            78.00%                  80.00%                         50%
                 MS     KM    VPRS    Hypertension  Diabetes  Heart Diseases Two Diseases
                                                                   40%
                      (a)                    (b)                   30%
                                                                   20%
                                                                   10%
           Figure 3 – (a)The results of MS, KM and VPRS; (b) the    0%  EC    UR    Acc   RS    IT    AR
           results of SM for different geriatrics.
                                                                     Figure 5 – The results of SDSP evaluation.
           In order to verify the global optimization capability
           and convergence rate of SAFSA, we randomly generated  smart services set S desire and to generate an optimized SDSP
           Performance of sensing devices in [0,50] and generated  of the smart home, including types, quantities and positions
           Price in [0,100]. Supposing that there are 20×20 sensing  of sensing devices, as shown in Figure 6. In future work,
           devices, we make experiments under Visual=30, Step=10,  energy consumption and the layout of the family should be
           Try_Number=50, δ=35 and λ 1 =λ 2 =0.5. As optimal and  taken into account to reduce the waste of energy resource and
           worst solutions of SAFSA are all better than AFSA, PSO and  to guide the deployment of sensing devices. Therefore, the
           GA in Figure-4(a), we concluded that SAFSA has a better  work of this paper will help the development and promotion
           global optimization capability. As shown in Figure-4(b),  of the smart home in the field of geriatric care.
           since cycle times of SAFSA for generating the global optimal
           solution is less than AFSA, the convergence rate of SAFSA
           is better than AFSA because of the self-repairing behavior.
           Finally, average cycle times of GA and PSO are similar to
           SAFSA, because they are easier to fall into local optimum.

                                          Average  Maximum  Minimum
                                      60
                                              50  50   50
                                      50
                0.91                     41
                                     Cycle times  30  27.8  26.7  28.2
                0.86                  40     33.9
                0.81
                0.76                  20
                  SAFSA  AFSA  PSO  GA   8    9
             Average Solution  0.899  0.893  0.873  0.851  10  3  4
             Optimal Solution  0.904  0.904  0.899  0.897
                                      0
             Worst Solution  0.894  0.878  0.846  0.798  SAFSA  AFSA  PSO  GA
                      (a)                     (b)
                                                                     Figure 6 – The prototype system of APGS.
           Figure 4 – (a) The optimal values of optimization algorithms;
           (b) The cycle times for obtaining the optimal solutions.
                                                                   7.  CONCLUSIONS AND FUTURE WORK
           Finally, we built an evaluation indicator system of SDSP to
           verify the scientificity and validity of SDSP of the smart  Due to the complexity and waste of resources in traditional
           home, based on evaluations of smart home researchers,  SDSP design, the smart home is not widely used in health
           as shown in Table 3.  Then, we presented 20 SDSP to  care. In order to promote the role of the smart home in the
           conduct surveys of 20 smart home researchers. As shown  field of health care, we proposed an APGS to generate the
           in Figure 5, the average score is bigger than ‘9’ of the  SDSP for the smart home automatically and efficiently based
           three secondary indexes of smart services and showed that  on the Smart-desire mapping method and Self-repairing
           SDSP has better accuracy, faster response times and higher  artificial fish swarm algorithm.  Ultimately, experiments
           intelligence levels. However, more than half of researchers  of elderly suffering from hypertension, diabetes and heart
           gave a ‘4-6’ score to ‘Energy Consumption’, mainly because  diseases verified the scientificity and validity of SDSP. Our
           the energy consumption was not taken into account to evaluate  work provides a novel approach to designing a user-oriented
           the performance of sensing devices.                smart home efficiently and automatically, which could reduce
               Table 3 – The evaluation indicator system of SDSP  the labor costs and make the design pattern more transparent
                                                              and reliable. Furthermore, an accurate SDSP is very helpful
                                                              for promoting the use of the smart home in geriatric care. In
              Primary Index     Secondary Index     Scores    future work, many standards in the field of geriatric care and
                              Energy Consumption(EC)  1-10
              Sensing Devices                                 smart services will be considered to standardize the design
                               Utilization Rate(UR)  1-10
                                 Accuracy(Acc)      1-10      of the smart home, since the standards can not only help
                  Smart                                       the elderly understand smart services, but also provide an
                 Services      Response Speed(RS)   1-10      aid for the application and promotion of our method. Then,
                               Intelligence Level(IL)  1-10
                Installation                                  a new method of assigning intelligence to sensing devices
              & Deployment      Accuracy Rate(AR)   1-10      by software-defining intelligence is necessary to improve the
                                                              coding efficiency in smart home design. We will commit
           Summarily, we implemented a prototype system to extract the  to providing user-oriented geriatric care for the elderly in the





                                                          – 131 –
   146   147   148   149   150   151   152   153   154   155   156