News4U-News Manager is a real time news scraping and recommendation system. This system uses a news pipeline to scrape latest news from various of resources such CNN, BBC and Bloomberg etc. To render the news, this system integrates with a single-page web application built by React. In addition, it generates a customized news list for each user based on news topics. To achieve this function, a click log processor collects users’ click logs to update a news preference model for each user, and an offline training pipeline models news topics.
SOA
- Client: a single-page web application built by React.
- Web Server: handles the sign-up and login functions with node.js and Express.
- Backend Server: requests news from database, labels specific news with "recommend" tag based on the response of news recommendation service and sends user's click events to click log processor
- News Recommendation Service: responses a list of prefered news topics for the current user.
- Click Log Processor: updates a user's preference model using a time decay method.
- News Topic Modeling Service: predicts news topics using a CNN model generated by an offline training pipeline.
- News Monitor: with the help of News API, finds the latest news from 20+ resource websites. It integrates with Redis to filter news with the same titles.
- News Fetcher: obtains a scraping task from the task queue and scrapes news using Newspaper3K library.
- News Deduper: utilizes NLP techniques to compare the content of the scraped news and existing news in mongoDB, calls the news topic modeling service and then stores the unique news into database.
To set up this system
./launcher.sh
To scrape more news
cd news_pipeline
./news_pipeline_launcher.sh
To update user'preference model
cd news_recommendation_service
python3 click_log_processor.py