111 research outputs found

    A Perception Based, Domain Specific Expert System for Question-Answering Support

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    The current search engine technologies mostly use a keyword based searching mechanism, which does not have any deductive abilities. There is an urgent need for a more intelligent question-answering system that will provide a more intuitive, natural language interface, and more accurate and direct search results. The introduction of Computing with Words (CwW) provides a new theoretical base for developing frameworks with support for dealing with information in natural language. This paper proposes a domain specific question-answering system based on Fuzzy Expert Systems using CwW. In order to perform the translation of natural language based information into a standard format for use with CwW, Probabilistic Context-Free Grammar is used

    An Intelligence-Aware Process Calculus for Multi-Agent System Modeling

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    In this paper we propose an agent modeling language named CAML that provides a comprehensive framework for representing all relevant aspects of a multi-agent system: specially, its configuration and the reasoning abilities of its constituent agents. The configuration modeling aspect of the language supports natural grouping and mobility, and the reasoning framework is inspired by an extension of the popular BDI theory of modeling cognitive skills of agents. We present the motivation behind the development of the language, its syntax, and an informal semantics

    Economic Integration and Stock Market Comovement: An Empirical Study Pairing Pakistan's Stock Exchange with 21 other Markets

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    Using daily stock returns from 2004 to 2014 for 21 countries paired with Pakistan, and using the Geweke methodology, the paper investigates the degree to which these stock markets are integrated with the Pakistani stock market. The paper also explores the factors that have an effect on the level of economic integration by applying fixed effect model. The result demonstrates statistically significant and high percentage of contemporaneous association between the 21 economies of the world and Pakistan. Greater comovement was observed between the equity markets during the period when Pakistani capital market and economy experience performance but less comovement was noted when Pakistan Stock Markets were under crises

    A Multi-Agent Based Approach for Particle Swarm Optimization

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    We propose a new approach towards Particle Swarm Optimization named Agent-based PSO. The swarm is elevated to the status of a multi-agent system by giving the particles more autonomy, an asynchronous execution, and superior learning capabilities. The problem space is modeled as an environment which forms clusters of points that are known to be non-optimal and this transforms the environment into a more dynamic and informative resource

    Harmonic Scalpel Hemorrhoidectomy Vs Milligan-Morgan Hemorrhoidectomy

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    Background: To compare Harmonic Scalpel Hemorrhoidectomy (HSH) with classical Milligan Morgan Hemorrhoidectomy (MMH) in terms of operation time and post-operative pain to establish effectiveness of this novel procedure.Methods: A total of 62 patients planned for excision hemorrhoidecotmy were randomly selected into HSH and MMH groups. Mean operation time was calculated during surgery and pain at time of first defecation was recorded on visual analog scale (VAS).Results: Mean VAS after surgery at time of first defecation was 4.32 (SD 0.909) in HSH group and 6.97 (SD 1.426) in MMH group (p value <0.000). Mean Operation time in HSH group was 18.13 (SD 3.956) minutes and that of MMH group was 22.90 (SD 4.901) minutes (P value <0.000).Conclusion: Harmonic Scalpel Hemorrhoidectomy is better than Milligan Morgan hemorrhoidectom

    Polycythemia Secondary to Pheochromocytoma

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    Polycythemia, also known as polyglobulia, is a clinical condition characterized by an increased number of red blood cells (RBC) or haematocrit concentrations in the peripheral blood. It can either be primary (polycythemia vera) or secondary, which can be congenital or acquired; the most common causes include obstructive sleep apnoea, obesity, hypoventilation, Pickwickian syndrome, Chronic obstructive pulmonary disease (COPD), and lastly, pheochromocytoma. Here we present a case of a 54-year-old male with a four-day history of altered state of consciousness (ASOC), right-sided body weakness, and respiratory difficulty. After a thorough history, examination, and investigation, he was diagnosed as a case of polycythemia secondary to pheochromocytoma. Early diagnosis and intervention are critical to save the patient’s life

    Psychosocial and medical factors affecting treatment compliance in patients attending psychiatric hospital: a study from Kashmir

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    Background: Compliance with medication is decisive for treatment of the psychiatric disorders and is necessary for determining the outcome and prognoses of psychiatric patients. While the causes of poor compliance are multifactorial, the psychiatrist should be aware of such factors and may be able to implement interventions to address those factors. The objective of study was to find out the various medical and social reasons affecting treatment Compliance among patients suffering from psychiatric disorders.Methods: A Cross-Sectional study from 2011 to 2012 was conducted in IMHANS (Institute of Mental Health and Neurosciences) Srinagar (J&K), a questionnaire was designed, and the questionnaire included questions on socio-demographic variables, psychiatric illnesses, and Medical and psycho-social affecting treatment compliance. A systematic selection method for choosing the respondents was opted, questionnaire was administered on 200 (n=200) patients who attended the Outpatient department during the period. Simple random sampling method was applied for selection of respondents, the first time visitors to OPD were exclude along with repetition of respondents.Results: Out of 200 respondents studied in the study 41.5 % were males and 58.5% were females. Maximum number of patients (31.5%) studied were in the age group below the 30 years. 3.5% of respondents were in the age group above 70 years. Out of total 200 respondents in the study 74 % of the respondents are in compliance with recommended medicine whereas non-compliance was found in the 26% of studied population. Complications (13.46%) ascending out by usage of psychiatric medicine can be attributed as one of the major case of treatment non-compliance in psychiatric patients, among the psychiatric patients. Accessibility of psychiatric medicine and Financial constrain was also one of the reasons behind the medicine non-compliance (7.69%). Patients with no insight to psychiatric disease also include a good percentage of (5.76 %) of medicine non- compliance.  Conclusions: Non-compliance is a dominant factor which causes possibly causes readmission in psychiatric wards. Compliance in psychiatric patients in general could be enhanced and improved by adequate intervention via patient counselling and patient medicinal care and education

    USING HEALTH INSURANCE DATABASES FOR EPIDEMIOLOGICAL RESEARCH: A SCOPING REVIEW

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    OBJECTIVE: This scoping review aimed to appraise the existing literature on using the claims databases for epidemiological studies and to draw inferences for using data from Pakistan’s health insurance databases. METHODS: We conducted a scoping review of literature focusing on health insurance databases, querying MEDLINE, EMBASE and Google Scholar. We used the frameworks proposed by the Joanna Briggs Institute and Arksy and O’Malley for mapping our results. RESULTS:  There was a considerable chronological increase in studies published using data from health insurance databases. Most of the studies in our search were from economically developed countries. Most of the studies (n=84) focussed on chronic non-communicable diseases, while a limited number (n=09) focussed on communicable (infectious) diseases. Our findings suggest that insurance databases could be utilised to study rare diseases, prospects of prolonged follow-up, and minimal research costs. This is especially important for countries like Pakistan, having limited resources to conduct regular, population-level epidemiological studies. Several methodological approaches (for instance, disease, pharmacy or intervention classification codes) were presented in these studies to extract epidemiological data from the insurance database. CONCLUSION: Health insurance databases are utilised as sources for epidemiological studies, predominantly for chronic illnesses, in economically developed countries. Methodological approaches described in these papers could be used to extract data for epidemiological research from health insurance databases in Pakistan. This could be especially useful for following the patterns of infectious disease in the country
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