小发明家和他们的大发明
The innovators featured at Google"s science competition have come up with projects that can do everything. They"re also all 18 and under. The 15 finalists， culled1） from thousands of entrants2） from over 100 countries in the second annual GSF， are all incredibly brilliant. But some stood out more than others.
参加谷歌科学竞赛的发明家们提出的科研项目五花八门、包罗万象，而他们都是18岁及以下的青少年。在第二届谷歌年度科学展览会上，从来自100多个国家的数千名参赛者中选出的15名决赛选手个个才华卓异，不过其中有几人表现尤为突出。
Brittany Wenger 布里塔尼>温格
17-year-old Brittany Wenger”the Science Fair"s grand prize winner and the winner in the 17 to 18 age group”has a project： a Global Neural Network Cloud Service for Breast Cancer. This Lakewood Ranch， Florida， girl designed an artificial neural network that can detect 99.1% of malignant3） breast tumors from Fine Needle Aspirates4） （FNAs）， a breast cancer test that in the past has produced notoriously inconclusive findings for patients. Artificial neural networks can detect patterns that are too complicated for humans to spot. Wenger"s neural network， which is hosted on the Google App Engine5）， was tested on FNA data （681 samples） collected by the University of Wisconsin. The result”99.1% sensitivity to malignancy”is 5% higher than the best commercial network"s result.
Wenger"s interest in programming started in the seventh grade. Her artificial neural networks have grown in complexity since then. "My first neural network played soccer，" Wenger says. Wenger hopes to work with the University of Wisconsin to continue her research， which was inspired by the many people in her life affected by breast cancer. "I want to work on image analysis and ...
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