基于监护任务的知识表征和决策方法研究

发布时间：2018-07-07 19:18

本文选题：监护任务 + 多代理　；参考：《吉林大学》2016年硕士论文

【摘要】：经济的发展导致老龄化的问题越来越严重。随着年龄的不断增长,老年人对疾病的抵抗能力和行动能力也不断减弱,容易患上各类疾病、行动不便。当前,独生子女家庭占主要比例,成年的子女因外出工作、成家等各种客观原因,不能时时在老人身边照顾。基于此,妥善的处理老人看护问题刻不容缓。以往的远程监护技术往往是简单的基于物联网技术、传感技术给出老人的健康状况,而没有结合医生的专业知识、监护人和老人的意愿等对老人的行为给出合理的建议。本文基于老人看护任务,在已有无线传感器网络技术的基础上,对老人监护问题提出了一种较为新颖的解决方案。为了融合老人、医生和监护人三方的意愿,并最终对老人的行为给出合理的建议,本文以老人监护任务为应用背景,构建了一个基于环境代理、老人代理、监护代理和医生代理的多代理的智能监护系统,并着重对代理内部的知识表示方法、推理机制以及代理间的知识决策方法进行研究。该系统利用无线传感器节点采集老人的生理参数,并以此为基础,支撑代理内部的知识表示和推理及决策。为了规范代理内部的各类型知识(事实知识、过程知识、规则知识等),本文提出了一个基于框架的知识表示方法,对不同类型的知识进行统一表征,并最终得出各代理内部的推理结果。同时,由于老人、医生和监护人都是基于自身的意愿对老人的行为提出要求,因此对老人的行为的要求可能不尽相同。为了对老人进行合理的监护,需要对老人代理、医生代理和监护代理的推理结果进行决策。本文基于论辩的思想,提出了一个基于攻击强度的论辩框架。此论辩框架为论证之间的攻击关系分配了强度,并基于此给出了决策方法。该决策方法对可能的冲突知识进行论辩决策,最终得到合理的决策结果。在以往的论辩决策中,我们往往难以解决相互攻击的论证的评估问题。本文提出的基于攻击强度的论辩框架,能够在一定程度上对论辩框架中相互攻击的论证进行评估,最终处理了系统知识的不一致,为老人监护任务提出了一个良好的、普适的解决方案。最后,本文基于B/S(浏览器/服务器)的架构,基于本地服务器和数据库,构建了一个智能监护系统。该系统为用户提供了登录、查看环境信息、推理和决策等服务,当老人出现异常情况时,能够向监护人推送信息告知异常。
[Abstract]:The problem of aging is becoming more and more serious due to the development of economy. With the increasing of age, the resistance and mobility of the elderly to diseases are weakened, and they are prone to various diseases and inconvenient movement. At present, one-child families account for the main proportion, adult children can not always take care of the elderly because of various objective reasons such as going out to work and getting married. Based on this, it is urgent to properly deal with the problem of care for the elderly. In the past, remote monitoring technology is based on the Internet of things technology, sensor technology to give the health of the elderly, but not combined with the professional knowledge of doctors, guardians and the wishes of the elderly to give reasonable advice on the behavior of the elderly. Based on the task of care for the elderly and on the basis of the existing wireless sensor network (WSN) technology, this paper presents a novel solution to the problem of elderly care. In order to integrate the wishes of the elderly, doctors and guardians, and finally give reasonable advice on the behavior of the elderly, this paper constructs an environmental agent, the elderly agent, based on the application background of the task of the elderly guardianship. The intelligent monitoring system of multi-agent of guardianship agent and doctor agent is studied, and the knowledge representation method, reasoning mechanism and knowledge decision method among agents are studied. The system uses the wireless sensor node to collect the physiological parameters of the elderly, and based on this, supports the knowledge representation, reasoning and decision-making in the agent. In order to standardize the various types of knowledge (fact knowledge, process knowledge, rule knowledge, etc.) within the agent, this paper proposes a frame-based knowledge representation method, which represents the different types of knowledge uniformly. Finally, the reasoning results of each agent are obtained. At the same time, since the elderly, doctors and guardians are based on their own wishes to demand the behavior of the elderly, so the requirements for the behavior of the elderly may not be the same. In order to monitor the elderly reasonably, it is necessary to make a decision on the reasoning results of the elderly agent, doctor agent and guardianship agent. Based on the argumentative idea, this paper presents a framework based on attack intensity. The framework allocates the intensity of the attack relationship between arguments and gives a decision method based on it. The decision method is used to argue the possible conflict knowledge, and the reasonable decision result is obtained. In the past argumentative decision-making, it is difficult to solve the problem of evaluating the argument of attacking each other. The argument frame based on attack intensity can evaluate the argument of attacking each other in the framework to a certain extent, and finally deal with the inconsistency of system knowledge, and put forward a good one for the task of monitoring the elderly. Universal solutions. Finally, based on the architecture of B / S (browser / Server), an intelligent monitoring system is constructed based on local server and database. The system provides users with services such as logging in, checking environmental information, reasoning and decision-making, and can push the information to the guardian to inform the guardian of the abnormal situation when there is an abnormal situation.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TP277

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