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科学美国人60秒:计算机预测热门歌曲

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This is Scientific American — 60-Second Science. I'm Christopher Intagliata.
Many parents are no doubt familiar with their teenagers' musical tastes. But very few are probably inspired enough to launch an experiment into them.
"I listened to some of the music my oldest teenage daughter is listening to. And I was surprised at how different that music was from what I used to listen to." Natalia Komarova, an applied mathematician at U.C. Irvine.
"Since I'm interested in evolution in general, and a mathematical description of evolution, I thought studying the evolution of music would be a good idea."
Komarova and her team analyzed half a million songs released in the U.K. between 1985 and 2015 using online databases that describe songs' musical characteristics, like rhythm, mood and danceability. "Here's a song that was high on the charts in 2014 that has high danceability: "Shake It Off" by Taylor Swift. (CLIP: "Shake It Off")
"Here's a 2014 song that has a low happiness index:"Stay with Me," by Sam Smith." (CLIP: "Stay with Me")
Overall, they found that songs had become less happy over the 30-year span; as well as more danceable, more relaxed—and more likely to have women behind the mic.

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But the big hits bucked a number of those trends. "The behavior of successful songs looked almost like a separate species of songs. They have quantifiably different features, their own little trends."
The hit singles were happier than the norm...almost a throwback to earlier times. And even more likely to be sung by women. The details are in the journal Royal Society Open Science.
Komarova's team was also able to predict a song's success, by judging only its musical qualities, about 75 percent of the time. "It turns out that you can predict the success to a certain degree of accuracy only based on music, so to me that's very positive. It means that music matters, for song success—it's not just money."
Proving that, at least when it comes to their musical tastes... the kids are alright. (CLIP: "The Kids Are Alright")
Thanks for listening for Scientific American — 60-Second Science. I'm Christopher Intagliata.

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重点单词   查看全部解释    
inspired [in'spaiəd]

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adj. 有创见的,有灵感的

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rhythm ['riðəm,'riθəm]

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n. 节奏,韵律,格律,节拍

 
predict [pri'dikt]

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v. 预知,预言,预报,预测

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species ['spi:ʃiz]

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n. (单复同)物种,种类

 
overall [əuvə'rɔ:l]

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adj. 全部的,全体的,一切在内的
adv.

 
evolution [.i:və'lu:ʃən]

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n. 进化,发展,演变

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throwback

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(俚)复古队服

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certain ['sə:tn]

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adj. 确定的,必然的,特定的
pron.

 
norm [nɔ:m]

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n. 标准,规范

 
span [spæn]

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n. 跨度,跨距,间距
vt. 横跨,贯穿,估

 

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