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SSS 2010-02-01

时间:2010-05-20 02:32来源:互联网 提供网友:mark@li   字体: [ ]
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    (单词翻译:双击或拖选)

Bees’ bread and butter is flowers—there’s no reason they should be able to recognize human faces. But they can.

 

Back in 2005, Arian Dyer at Monash University showed that bees could identify people who they associated who with sugary snacks. But could they recognize humans, or did they just see them as weird1 flowers?

 

Martin Giurfa at France’s Université de Toulouse contacted Dyer to work on that question. First, they drew simple images of facial features—dots for eyes, slashes2 for nose and mouth. The bees were trained to distinguish between an image with narrower features and one with wider ones.

 

Then the scientists asked could the insects distinguish face-like features from non-faces? The bees won sugary rewards when they picked out faces as opposed to pictures that just had random3 dots and dashes.

 

Finally, the critters faced their ultimate task: to pick out real faces from those that had the features scrambled4. And: score. Bees could indeed differentiate5 faces from non-faces. The study was published in the Journal of Experimental Biology. Scientists hope that the simple bee brain could be a model for automated6 facial recognition, which could help in FBI stings.

 

—Cynthia Graber

 


点击收听单词发音收听单词发音  

1 weird bghw8     
adj.古怪的,离奇的;怪诞的,神秘而可怕的
参考例句:
  • From his weird behaviour,he seems a bit of an oddity.从他不寻常的行为看来,他好像有点怪。
  • His weird clothes really gas me.他的怪衣裳简直笑死人。
2 slashes 56bb1b94ee9e9eea535fc173e91c6ee0     
n.(用刀等)砍( slash的名词复数 );(长而窄的)伤口;斜杠;撒尿v.挥砍( slash的第三人称单数 );鞭打;割破;削减
参考例句:
  • They report substantial slashes in this year's defense outlays. 他们报道今年度国防经费的大量削减。 来自辞典例句
  • Inmates suffered injuries ranging from stab wounds and slashes to head trauma. 囚犯们有的被刺伤,有的被砍伤,而有的头部首创,伤势不一而足。 来自互联网
3 random HT9xd     
adj.随机的;任意的;n.偶然的(或随便的)行动
参考例句:
  • The list is arranged in a random order.名单排列不分先后。
  • On random inspection the meat was found to be bad.经抽查,发现肉变质了。
4 scrambled 2e4a1c533c25a82f8e80e696225a73f2     
v.快速爬行( scramble的过去式和过去分词 );攀登;争夺;(军事飞机)紧急起飞
参考例句:
  • Each scrambled for the football at the football ground. 足球场上你争我夺。 来自《现代汉英综合大词典》
  • He scrambled awkwardly to his feet. 他笨拙地爬起身来。 来自《简明英汉词典》
5 differentiate cm3yc     
vi.(between)区分;vt.区别;使不同
参考例句:
  • You can differentiate between the houses by the shape of their chimneys.你可以凭借烟囱形状的不同来区分这两幢房子。
  • He never learned to differentiate between good and evil.他从未学会分辨善恶。
6 automated fybzf9     
a.自动化的
参考例句:
  • The entire manufacturing process has been automated. 整个生产过程已自动化。
  • Automated Highway System (AHS) is recently regarded as one subsystem of Intelligent Transport System (ITS). 近年来自动公路系统(Automated Highway System,AHS),作为智能运输系统的子系统之一越来越受到重视。
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