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Artificial Intelligence in Health                                     Explainable solutions from AI for HSSs



            (for example, risk of hypokalemia in patients with arterial   diseases, the statements about the method to eliminate the
            hypertension) and predicting complications. 17,18  Almost all   cause of the disease:
            services based on machine learning provide versions of a     <diagnosis , event , set-of {(observation , new-range
                                                                                u
                                                                          k
            preliminary diagnosis without considering the dynamics of   of observation values)}, delay >;  jk  iu
            the patient’s observations. 19,20  For such tasks (preliminary               ku
            diagnostics, risk assessment, or forecasting), as a rule, an   The statements about the impact on an organism for
            intelligent service becomes inaccurate if it was “trained” on   recovery start:
            the data of one institution and it tries to operate in other   <process variant , (period , interval ), treatment
                                                                                         in
                                                                                kn
            circumstances.                                     event , set-of {observation , value range in  (period (i+1)n ,
                                                                                     jkn
                                                                   u
                                                                                                  jkn
              There are tasks for which no one has yet accumulated   interval (i+1)n )>}}>;
            adequate training material. In medicine, these are   The  statements  about  acting  on  a  symptom  to
            corrections to disease treatment and differential diagnosis.   alleviate it:
            For this, intelligent services consultants trained on text   <process variant , (period , interval ), observation ,
            corpora (and GPT helpers) within the idea of hybrid   values  range, (event , delay ), values new range >.  jk
                                                                                                in
                                                                               kn
                                                                                       in
            services to support the doctor’s work may be used.      jkn         u     kj              iu
                                                                 The domain ontology represents all types of statements
            3.1. The influence of the ontological model on the   as a structural language (template) for introducing or
            properties of system components                    describing knowledge. The knowledge base explicitly
            For ClDSS to correctly formulate advice or results for   contains sets of statements of the corresponding type
            solving  medical  problems  (risk,  diagnostics,  treatment,   sufficient for this profession.
            and prognosis), it needs to operate with concepts that   The  traditional  architecture  of  KES  is  the  knowledge
            specialists use. For example, for knowledge of the task of   base + fact base + intellectual problem solver + intellectual
            monitoring the recovery process, one of the most common   GUI. 15Finn2004  Knowledge bases are generated manually or
            types of sentences (statements) is:                inductively, including training samples from archives and
              <process type , set-of {(period  + interval ), set-of   databases; this process involves inductive generalizations
                          k
                                        ik
                                                                                 16
            {characteristic , characteristic values range }}>.  ki  in machine learning.  Bayesian classifiers, clustering
                       j                     ijk               algorithms, and reinforcement learning 21,22  are sometimes
              For the diagnosis of diseases, statements about the   involved in this process.
            relationships are needed:
                                                                 The approach to creating systems with transparent
                <diagnosis , process’ existence necessary condition ,   knowledge  bases  is  based  on  an  architecture  expanded
                       k
                                                         k
              set-of {factor }>;
                         km                                    by a new component: ontology + ontological knowledge
                <diagnosis, set-of {symptom complex | variant  of   base + ontological fact base + ontological interpretator
                                                       jk
                       j
                                              jk
              disease course}, [necessary condition]>;         (problem solver) + intelligent  graphical interface. It can
                                            j                  include databases with reference information, operational
                <symptom complex , set-of {feature, range  of values   information, and work with files.
                              k
                                                 kj
                                            j
              of feature}>;
                                                                 Often  in  one  domain,  a  set  of  interrelated  tasks  is
              <symptom complex , set-of {sign , {period , duration   solved; examples of related tasks are diagnosis, treatment,
                                                 ik
                              k
                                         jk
            of period , range  of values of sign in period }}>;
                   i     ijk           j       i               and prognosis. To solve all tasks, one formal domain
              <variant  of disease course, set-of {(period  + interval ),   ontology can be created, but it is more convenient to map
                                                        in
                     n
                                               in
            set-of {observation , set-of {observation element , range of   a separate ontological resource to separate tasks solved in
                                                  jk
                           k
            values >}}>;                                       the domain. A  set of formal ontologies for related tasks
                 ijkn                                          may  be  required  when  designing  applied  systems  with
              <necessary condition , set-of {factor }>.        knowledge bases, which is followed by the creation of a set
                                           km
                               k
              All such concepts and relationships are explicitly written   of ontological knowledge bases (for each task).
            and “available” to algorithms when they are developed
            based  on  ontologies  and  access  to  explicit  knowledge   3.2. The influence of ontology on the integrability of
            resources. The medical ontology was created by experts   various components within a single architecture
            and  knowledge  engineers.  The  factors  without  which  a   To  combine  various  achievements  of  knowledge
            disease does not begin can be the events or properties of   engineering  and AI in complex medical intelligent
            an organism; they can also determine one of the options   trustworthy systems, it is reasonable to choose the
            for the development of the disease. For the treatment of   document “patient’s medical record” as an integration
            Volume 2 Issue 3 (2025)                        142                               doi: 10.36922/aih.5736
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