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An expert system for the diagnosis of irritable bowel syndrome.

Surdea-Blaga T, Dumitraşcu DL - Clujul Med (2013)

Bottom Line: Although IBS evolution is benign, it has major effects on the quality of life, it determines a higher number of days of sick leave or days when work activities had to be interrupted, thus increasing the expenses for the society.The evaluation of the system consisted of verification (determining the accuracy of the results to ensure the delivery of diagnosis and recommendations as it was intended), validation of knowledge (met through the use of the gold standard in the field) and assessment of the impact on users, either patients or physicians (measuring overall satisfaction and the user effort score in using the system).The system is available online at www.gastroterra.ro and can be accessed by using any Java-enabled device, from standard computers to mobile devices.

View Article: PubMed Central - PubMed

Affiliation: 2 Medical Department, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.

ABSTRACT
For a long time functional digestive disorders (FGIDs), including irritable bowel syndrome (IBS), were described based on what they are not, without considering them real entities. Although IBS evolution is benign, it has major effects on the quality of life, it determines a higher number of days of sick leave or days when work activities had to be interrupted, thus increasing the expenses for the society. Our system, developed using CORVID Exsys, is called IBS Expert and addresses both patients and physicians. Answering some simple questions, patients will receive information about their diagnosis, together with additional recommendations. Non-expert physicians will have rapid access to the algorithm of IBS diagnosis, and could use recommendations for future investigations. This expert system is based on the information provided by the most complete collection of data about FGIDs, created by an international group of experts, who elaborated Rome III criteria. The system consists of three sub-systems, including a set of eighteen questions and the diagnosis of IBS, as well as additional recommendations, established using confidence variables. The evaluation of the system consisted of verification (determining the accuracy of the results to ensure the delivery of diagnosis and recommendations as it was intended), validation of knowledge (met through the use of the gold standard in the field) and assessment of the impact on users, either patients or physicians (measuring overall satisfaction and the user effort score in using the system). The system is available online at www.gastroterra.ro and can be accessed by using any Java-enabled device, from standard computers to mobile devices.

No MeSH data available.


Related in: MedlinePlus

The components of an expert system.
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f1-cm-86-208: The components of an expert system.

Mentions: An expert system is a computer application that can be successfully compared with a human expert. The purpose of an expert system is to obtain, similar to human experts, results related to difficult activities or for activities for which a solving algorithm doesn’t exist. An expert system consists of three major components: the knowledge base, the working memory and the inference engine [3]. The knowledge base is a structure that contains all the specific knowledge provided by human experts, which tends to remain constant during the system’s operation. The knowledge base is usually created in the development phase of the system, aiming at covering all situations that may occur, and it is typically updated in line with the developments in the field of expertise. It can be built by engineers, with the support of experts, by experts in the field or using learning methods of the system, generally based on examples. The working memory contains transient knowledge that changes significantly during the system use. Working memory contains all user data, both initial input and interim results. The inference engine is the operational component of an expert system that gets solutions and/or recommendations by applying the knowledge base to the working memory and deriving the results by changing the latter. For the development, maintenance and use of the system, the following interfaces are required: 1. interface with the developers - used to modify important aspects of the system such as search strategy or the selected variables; 2. interface with experts - used for acquiring new knowledge and changing existing ones; 3. user interface - used to initialize the working memory to transmit control signals to inference engine, receive results and display them (figure 1).


An expert system for the diagnosis of irritable bowel syndrome.

Surdea-Blaga T, Dumitraşcu DL - Clujul Med (2013)

The components of an expert system.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4462497&req=5

f1-cm-86-208: The components of an expert system.
Mentions: An expert system is a computer application that can be successfully compared with a human expert. The purpose of an expert system is to obtain, similar to human experts, results related to difficult activities or for activities for which a solving algorithm doesn’t exist. An expert system consists of three major components: the knowledge base, the working memory and the inference engine [3]. The knowledge base is a structure that contains all the specific knowledge provided by human experts, which tends to remain constant during the system’s operation. The knowledge base is usually created in the development phase of the system, aiming at covering all situations that may occur, and it is typically updated in line with the developments in the field of expertise. It can be built by engineers, with the support of experts, by experts in the field or using learning methods of the system, generally based on examples. The working memory contains transient knowledge that changes significantly during the system use. Working memory contains all user data, both initial input and interim results. The inference engine is the operational component of an expert system that gets solutions and/or recommendations by applying the knowledge base to the working memory and deriving the results by changing the latter. For the development, maintenance and use of the system, the following interfaces are required: 1. interface with the developers - used to modify important aspects of the system such as search strategy or the selected variables; 2. interface with experts - used for acquiring new knowledge and changing existing ones; 3. user interface - used to initialize the working memory to transmit control signals to inference engine, receive results and display them (figure 1).

Bottom Line: Although IBS evolution is benign, it has major effects on the quality of life, it determines a higher number of days of sick leave or days when work activities had to be interrupted, thus increasing the expenses for the society.The evaluation of the system consisted of verification (determining the accuracy of the results to ensure the delivery of diagnosis and recommendations as it was intended), validation of knowledge (met through the use of the gold standard in the field) and assessment of the impact on users, either patients or physicians (measuring overall satisfaction and the user effort score in using the system).The system is available online at www.gastroterra.ro and can be accessed by using any Java-enabled device, from standard computers to mobile devices.

View Article: PubMed Central - PubMed

Affiliation: 2 Medical Department, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.

ABSTRACT
For a long time functional digestive disorders (FGIDs), including irritable bowel syndrome (IBS), were described based on what they are not, without considering them real entities. Although IBS evolution is benign, it has major effects on the quality of life, it determines a higher number of days of sick leave or days when work activities had to be interrupted, thus increasing the expenses for the society. Our system, developed using CORVID Exsys, is called IBS Expert and addresses both patients and physicians. Answering some simple questions, patients will receive information about their diagnosis, together with additional recommendations. Non-expert physicians will have rapid access to the algorithm of IBS diagnosis, and could use recommendations for future investigations. This expert system is based on the information provided by the most complete collection of data about FGIDs, created by an international group of experts, who elaborated Rome III criteria. The system consists of three sub-systems, including a set of eighteen questions and the diagnosis of IBS, as well as additional recommendations, established using confidence variables. The evaluation of the system consisted of verification (determining the accuracy of the results to ensure the delivery of diagnosis and recommendations as it was intended), validation of knowledge (met through the use of the gold standard in the field) and assessment of the impact on users, either patients or physicians (measuring overall satisfaction and the user effort score in using the system). The system is available online at www.gastroterra.ro and can be accessed by using any Java-enabled device, from standard computers to mobile devices.

No MeSH data available.


Related in: MedlinePlus