如何在clipspy中获取事实值并将其存储在python变量中 [英] How to get a fact value in clipspy and store it in a python variable

问题描述

说我插入了一条规则:

(defrule matching
    (fever ?fever)
    (headache ?headache)
    (disease (fever ?fever) (disname ?disname1) (headache ?headache))
    =>
    (assert (dis ?disname1)))

现在，我想将?disname1的值提取到python变量中，以便可以在网页上显示它，

Now I want to fetch the value of ?disname1 into a python variable so that I can display it on a webpage,

烧瓶代码-

import clips
from flask import Flask , render_template ,request
app = Flask(__name__)

env = clips.Environment()

env.load("clips.clp")

env.reset()



@app.route('/')
def home():
   return render_template('main.html')

@app.route('/result' , methods = ['POST', 'GET'])
def result():
    if request.method == 'POST':
        if  request.form.get('fever'):
            env.assert_string("(fever true) ")

        if request.form.get('headache'):
            env.assert_string("(headache true)")
            
        
        rule = """ (defrule matching 
                      (fever ?fever) (headache ?headache) 
                        (disease (fever ?fever) (disname ?disname1) (headache ?headache))
                        =>
                          (assert ( dis ?disname1 )) """

        env.build(rule)
       
        

    return render_template('next.html')

env.run()

if __name__ == '__main__':
   app.run(debug= True)

因此，在构建规则之后，将(dis?disname)声明为片段中的事实，所以现在，我想检索?disname 的值，该值将给出我将一个人面临的疾病转换为python变量，以便可以将其传递给html模板并显示它.

So after the rule is build ( dis ?disname) is asserted as a fact into clips so now ,I want to retrieve the value of ?disname which will give me the illness a person is facing , into a python variable so that I can pass it to html template and display it.

推荐答案

您可以通过事实迭代器访问环境事实.

You can access to the environment facts via the facts iterator.

根据事实是有序或<您可以通过索引或键访问href ="https://clipspy.readthedocs.io/en/latest/?badge=latest#template-facts" rel ="nofollow noreferrer">无序.

for fact in env.facts():
    if fact.template.name == 'dis':
        print(fact[0])

关于注释中的问题，取决于您的应用程序.对于您的情况，我建议使用事实来代表决策结果.事实代表了专家的系统知识，因此非常适合.

Regarding your question in the comments, it depends on your application. In your case, I would recommend to use facts to represent the decision outcome. Expert systems knowledge is represented by facts and therefore it's a good fit.

您可以使用生成的知识来进一步推理并激活更多规则，例如，可以对用户生病这一事实做出反应并采取相应的行动.

You can use the generated knowledge to further reason and activate more rules which, for example, could react to the fact the User is ill and take actions accordingly.

这篇关于如何在clipspy中获取事实值并将其存储在python变量中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！