美国行记6

Today，we spent our third day at Berkeley. We studied machine learning and Siri ，Tesla.  The teacher asked a lot of questions before the class starts. He also used  Siri before the class starts，I didn't know at first.  I thought it was just a tool.At beginning of the class，he let so many student using Siri to say Pikachu and Mia and identify the sound by using zhen. It was so boring. And he didn't let me speak at first and he didn't let us using phones because he saw some boys playing games ，which made me really angry and he gave me a bad impression. He then taught us the four ways about how do we mimic humans with computers，which was the most important things around the whole  lesson.We also knows how to learning output from input. We then analyzed the disadvantages of Eliza（another program）and why it only communicate with words with the four reasons.  During the break，the teacher talked to me about what do I study at school，what I  want to study in the future，I talked about my grandpa and his magnificent lifetime. We also talked a little bit about Spanish. But actually I didn't understand anything besides the first sentence. I had a good impression again of this teacher. It，s the second best teacher in  Berkeley of the three classes，I also talked to him about my English learning and how much I could keep with my peers friend and Mongolian. The second class， the teacher taught us Tesla，the sixth degree of self driving. Then he let us discuss for a long time about what Tesla can do and he showed us the image that the obstacle  and driving has on Tesla. He finally let us discuss the good and bad points about making Siri and Tesla came into use. It was a comprehensible but a little boring class. At noon，we ate fast food hamburger  at super duper. The hamburger was 1.5 times bigger than McDonald's. But I and Hawk only shares one chips，which looks not enough for our two people. But in the end we surplused a bit. In the afternoon，we went to the science Museum and science department there. I experienced the folding high. After over 20th try，I pulled down the block because I didn't notice how much blocks I pulled out on that layer before. We had a great day today. 

Tomorrow is our presentation about VR and AI. Hope I can get success. 长风破浪会有时，直挂云帆济沧海。加油元帅。