文档介绍：理工b阅读押题
机会只给有准备的人。
Opportunities are only for the prepared person.
2014年共4篇文章
I'll Be Bach(综合B)2014 新增 26课讲过
Teaching ;Math, Teaching Anxiety
A Sunshade for the
Digital Realm
第二十九篇 I'll Be Bach(理工B新增)
Composer David Cope is the inventor of puter program that writes original works of classical music. It took Cope 30 years to develop the software. Now most people can't tell the difference between music by the famous poser J. S. Bach (1685-1750) and the Bach-positions from Cope'puter.
It all started in 1980 in the United States, when Cope was trying to write an opera. He was having trouble thinking of new melodies, so he wrote puter program to create the melodies. At first this music was not easy to listen to. What did Cope do? He began to rethink how human pose music. He realized posers' brains work like big databases. First, they take in all the music that they have ever heard. Then they take out the music that they dislike. Finally, they make new music from what is left. According to Cope, only the posers are able to create the database accurately, remember it, and form new musical patterns from it.
Cope built a huge database of existing music. He began with hundreds of works by Bach. The software analyzed the data: it broke it down into smaller pieces and looked for patterns. It bined the pieces into new patterns. Before long, the program pose short Bach-like works. They weren't good, but it was a start.
Cope knew he had more work to do-he had a whole opera to write. He continued to improve the software. Soon it could analyze more. complex music. He also added many posers, including his own work, to the database.,
A few years later, Cope'puter program, called "Emmy", was ready to help him with his opera. The process required a lot of collaboration between poser and Emmy. Cope listened to puter's musical ideas and used the ones that he liked. With Emmy, the opera took only two weeks to finish. It was called Cradle Falling, and it was a g