Perform Sentiment Analysis with scikit-learn

4.5
374件の評価
提供:
Coursera Project Network
7,997人がすでに登録済みです
このガイド付きプロジェクトでは、次のことを行います。

Build and employ a logistic regression classifier using scikit-learn

Clean and pre-process text data

Perform feature extraction with The Natural Language Toolkit (NLTK)

Tune model hyperparameters and evaluate model accuracy

Clock2 hours
Intermediate中級
Cloudダウンロード不要
Video分割画面ビデオ
Comment Dots英語
Laptopデスクトップのみ

In this project-based course, you will learn the fundamentals of sentiment analysis, and build a logistic regression model to classify movie reviews as either positive or negative. We will use the popular IMDB data set. Our goal is to use a simple logistic regression estimator from scikit-learn for document classification. This course runs on Coursera's hands-on project platform called Rhyme. On Rhyme, you do projects in a hands-on manner in your browser. You will get instant access to pre-configured cloud desktops containing all of the software and data you need for the project. Everything is already set up directly in your internet browser so you can just focus on learning. For this project, you’ll get instant access to a cloud desktop with Python, Jupyter, and scikit-learn pre-installed. Notes: - You will be able to access the cloud desktop 5 times. However, you will be able to access instructions videos as many times as you want. - This course works best for learners who are based in the North America region. We’re currently working on providing the same experience in other regions.

あなたが開発するスキル

Data ScienceMachine LearningPython ProgrammingData AnalysisScikit-Learn

ステップバイステップで学習します

ワークエリアを使用した分割画面で再生するビデオでは、講師がこれらの手順を説明します。

  1. Introduction and Importing the Data

  2. Transforming Documents into Feature Vectors

  3. Term Frequency-Inverse Document Frequency

  4. Calculate TF-IDF of the Term 'Is'

  5. Data Preparation

  6. Tokenization of Documents

  7. Document Classification Using Logistic Regression

  8. Load Saved Model from Disk

  9. Model Accuracy

ガイド付きプロジェクトの仕組み

ワークスペースは、ブラウザに完全にロードされたクラウドデスクトップですので、ダウンロードは不要です

分割画面のビデオで、講師が手順ごとにガイドします

レビュー

PERFORM SENTIMENT ANALYSIS WITH SCIKIT-LEARN からの人気レビュー

すべてのレビューを見る

よくある質問

よくある質問

さらに質問がある場合は、受講者向けヘルプセンターにアクセスしてください。