One thing that I think that this paper does a very good job of is creating ideas for new research, particularly refining the use of the system and also expanding the uses. As Greg mentioned, I would be interested to see how well the system would do on a larger time scale. Although day trading is interesting, particularly in making a quick dollar, I think an even more interesting experiment would be to examine a much larger time scale on the order of weeks, months or even years. The application could not only be used for monetary gain, but also as a good model for a company’s future value and success.

Another idea that was also curious to me was the way that the news articles were selected. The paper briefly mentions that the stories are simply taken from the relevant stories that Yahoo keeps. I think that the choice of news stories has a strong impact on how well their system would work. It would be interesting to see what exact factor the choice made and also how well the system reacted to noisy or incomplete data.

Dave