关于此课程： This course will introduce the learner to text mining and text manipulation basics. The course begins with an understanding of how text is handled by python, the structure of text both to the machine and to humans, and an overview of the nltk framework for manipulating text. The second week focuses on common manipulation needs, including regular expressions (searching for text), cleaning text, and preparing text for use by machine learning processes. The third week will apply basic natural language processing methods to text, and demonstrate how text classification is accomplished. The final week will explore more advanced methods for detecting the topics in documents and grouping them by similarity (topic modelling). This course should be taken after: Introduction to Data Science in Python, Applied Plotting, Charting & Data Representation in Python, and Applied Machine Learning in Python.
此课程适用人群： This course is part of “Applied Data Science with Python“ and is intended for learners who have basic python or programming background, and want to apply statistics, machine learning, information visualization, social network analysis, and text analysis techniques to gain new insight into data and/or a basic nltk tutorial. Only minimal statistics background is expected, and the first course contains a refresh of these basic concepts. There are no geographic restrictions. Learners with a formal training in Computer Science but without formal training in data science will still find the skills they acquire in these courses valuable in their studies and careers.
教学方： V. G. Vinod Vydiswaran, Assistant Professor
School of Information
| 基本信息 | 课程 4（共 5 门，Applied Data Science with Python Specialization ） |
| 级别 | 中级 |
| 语言 | English |
| 如何通过 | 通过所有计分作业以完成课程。 |
| 用户评分 |
- Reading: Course Syllabus
- Reading: Help us learn more about you!
- 视频: Handling Text in Python
- Reading: Notice for Auditing Learners: Assignment Submission
- Notebook: Working with Text
- 视频: Regular Expressions
- Notebook: Regex with Pandas and Named Groups
- 视频: Demonstration: Regex with Pandas and Named Groups
- Practice Quiz: Practice Quiz
- 视频: Internationalization and Issues with Non-ASCII Characters
- Discussion Prompt: Introduce Yourself
- Reading: Resources: Common issues with free text
- Notebook: Assignment 1
- Notebook: Module 2 (Python 3)
- 视频: Basic NLP tasks with NLTK
- 视频: Advanced NLP tasks with NLTK
- Practice Quiz: Practice Quiz
- Discussion Prompt: Finding your own prepositional phrase attachment
- Notebook: Assignment 2
- 视频: Identifying Features from Text
- 视频: Naive Bayes Classifiers
- 视频: Naive Bayes Variations
- 视频: Support Vector Machines
- 视频: Learning Text Classifiers in Python
- Notebook: Case Study - Sentiment Analysis
- 视频: Demonstration: Case Study - Sentiment Analysis
- Notebook: Assignment 3
- 视频: Topic Modeling
- 视频: Generative Models and LDA
- Practice Quiz: Practice Quiz
- 视频: Information Extraction
- Reading: Additional Resources & Readings
- Notebook: Assignment 4
- Reading: Post-Course Survey
Each course is like an interactive textbook, featuring pre-recorded videos, quizzes and projects.
Connect with thousands of other learners and debate ideas, discuss course material, and get help mastering concepts.
Earn official recognition for your work, and share your success with friends, colleagues, and employers.
| 购买课程 | |
|---|---|
| 访问课程材料 | 可用 |
| 访问评分的材料 | 可用 |
| 收到最终成绩 | 可用 |
| 获得可共享的课程证书 | 可用 |
Wonderful course for starting Text Analytics and practicing the concept
Learned a lot. Recommended !!!
Excellent course
Awesome. Worth it!.