Question

我写了这段代码，它需要一个输入字符串来获取类似的单词并创建这些单词的不同组合，在pandas列中搜索每个组合，并返回找到关键词的行的索引。

我在下面编写了代码并且对我来说效果很好，但它比我想要的慢，随着时间的推移，数据框越来越大，我猜测它只会变慢。

所以我想知道是否有更有效的方法可以遵循，我可以改变哪些线来实现这一目标。使用正则表达式搜索或附加列表。

这是我的数据框

    Unnamed: 0  web-scraper-start-url   course-link course-link-href    title   shortDescription    instructor  date    language    subtitle    ... fullDescription requiremens includes    objective   audience    instruct    fullText    full_text   key_words   clean_words
0   0   https://www.udemy.com/courses/business/all-cou...   How To Create A 5 Figure SEO Business-ZERO Exp...   https://www.udemy.com/how-to-create-a-5-figure...   How To Create A 5 Figure SEO Business-ZERO Exp...   Create a 5 figure SEO business by working for ...   Angshuman Dutta Last updated 3/2017 English English [Auto-generated]    ... This course will show you how to create a prof...   You should be willing to profit from selling S...   2 hours on-demand video|2 Supplemental Resourc...   Build a sustainable income selling SEO service...   This course is for internet marketers who want...   Angshuman-Dutta How To Create A 5 Figure SEO Business-ZERO Exp...   ['create', 'figure', 'seo', 'business', 'zero'...   ['freelance', 'experience', 'service', 'websit...   ['income', 'resource', 'corporate', 'absolutel...
1   1   https://www.udemy.com/courses/business/all-cou...   Microsoft Excel for Project Management - Earn...    https://www.udemy.com/microsoft-excel-for-proj...   Microsoft Excel for Project Management - Earn...    Mastering Microsoft Excel for Project Manageme...   Joseph Phillips Last updated 3/2016 English English [Auto-generated]    ... Itâs been said that project management is 90... Basics of project management|Basics of Microso...   4.5 hours on-demand video|1 Supplemental Resou...   Design reports for your stakeholders|Create a ...   Project managers|PMPs|People learning Microsof...   Joseph-Phillips Microsoft Excel for Project Management - Earn...    ['microsoft', 'excel', 'project', 'management'...   ['project', 'manager', 'excel', 'microsoft', '...   ['project', 'resource', 'people', 'reporting',...

这就是我的数据框中的关键字列如何

0       [freelance, experience, service, website, free...
1       [project, manager, excel, microsoft, reporting...
2       [income, informational, english, online, exper...

这是我的代码。

def bla_bla(model):

    input_string = input()
    title = input_course.split()
    titles = model.most_similar(title)
    title_list = []
    for keyword in titles:
        titles_list.append(keyword[0])

    recommended_keywords = titles_list + title


 #This is how recommended key_words will look like

      ['fullstack',
 'ror',
 'tulsa',
 'shrikrishna',
 'vanston',
 'devtools',
 'develoeprs',
 'frontend',
 'intermidate',
 'nunn',
 'web',
 'developer']


    coursat = []
    for duo in range(0, len(recommended_keywords)+1):
        for subset in itertools.combinations(recommended_keywords, duo):
            if len(subset) > 2 and len(subset)<=3:
                coursat.append(subset)
            else:
                pass
    my_list = []
    for g in coursat:
        y  = df[df['key_words'].str.contains(".*"+str(g[0])+".*"+str(g[1])+"|"+".*"+str(g[1])+".*"+str(g[0]))]
        if y.title.empty:
            pass
        else: my_list.append(y.title)
    return my_list

这应该是我的功能的输出。

[2538    Node with React: Fullstack Web Development
 Name: title, dtype: object,
 2481      Progressive Web Apps (PWA) - The Complete Guide
 3447    Progressive Web Apps - The Concise PWA Masterc...
 4964    Progressive Web Apps (PWA) - From Beginner to ...
 Name: title, dtype: object,
 5691    Yii2 Application Development Solutions–Volume 2
 Name: title, dtype: object,
 3697    HTML5 : Mobile Web App Development
 Name: title, dtype: object]

提前致谢。

在pandas列中搜索字符串的最有效方法是什么？

0 个答案: