Original sentence: Comet is a World Wide Web application architecture in which a web server sends data to a client program (normally a web browser) asynchronously without the client explicitly requesting it.It allows creation of event-driven web applications.The effect is similar to applications using traditional Ajax with polling to detect new information on the server.This differs from the traditional model of the web, in which a browser receives a complete web page in response to each request, and also from the Ajax model, in which browsers request chunks of data, used to update the current page
Edited sentence: Comet is a World Wide Web application architecture in which a web server sends data to a client program (normally a web browser) asynchronously without any need for the client to explicitly request it.It allows creation of event-driven web applications, enabling real-time interaction which would otherwise require much more work.The effect is similar to applications using traditional Ajax with polling to detect new information on the server, but throughput is improved and latency and server load are decreased.This differs from the original model of the web, in which a browser receives a complete web page in response to each request, and also from the Ajax model, in which browsers request chunks of data, used to update the current page