题型:阅读理解 题类:常考题 难易度:普通
广东省七校联合体2021届高三上学期英语第二次联考(11月)试卷
Never play games with a bot(robot)—it will find a way to cheat if it can. A team from OpenAI, an artificial intelligence lab in San Francisco, has developed artificially intelligent bots that taught themselves to cooperate by playing hide-and-seek. The bots also learned how to use basic tools to help them win.
Bowen Baker at Open AI and his colleagues wanted to see if the team-based dynamics of the OpenAI Five could be used to produce skills that could one day be useful to humans.
The researchers set their bots loose in a simulated (模拟的) environment filled with fixed walls, movable boxes and ladders, and left them to play team games of hide-and-seek. The bots each had their own view of the world and couldn't communicate with each other directly.
At first, the hiders simply ran away. But they soon worked out that the quickest way to stop the seekers was to find objects in the environment to hide themselves from view. The seekers learned that they could move boxes around and use them to climb over walls. The bots then discovered that being a team-player -passing objects to each other or cooperating on a hideout -was the quickest way to win.
But the real surprise came when the bots started making use of problems or faults. Seekers found that if they pushed a ladder towards a wall, they could launch themselves into the air and spot hiders from above. Hiders found that they could get rid of the ladders by pushing them aside.
It shows that AIs are able to find solutions that humans miss, says Baker. "Maybe they'll even be able to solve problems that humans don't yet know how to." However, it is a large leap (跳跃) from virtual hide and seek to real problem-solving. "The main limitation is that it is in simulation," says Chelsea Finn at Stanford University.
Weekend Photography Workshop(研讨班): Seattle Aims
Learn new techniques from a great photographer
Take photos of Pike Place Market, Bainbridge Island, and more
Activity Details
Seattle is a fantastic place to photograph. Spend the weekend taking photos of the historic Pike Place Market, get a new angle on the Space Needle, and photograph harbor views on Bainbridge Island.
This workshop is led by a great photographer and a professional instructor and is designed for people who are interested in improving their digital photography. All participants must bring a digital SLR camera(单反相机), a laptop, and the software for organizing and presenting images. The workshop is limited to 25 participants.
Plan – 3 Days
Day 1—Thursday: Seattle
Settle into our hotel or stay in accommodations of your choice. Gather tonight at a restaurant in town for a welcome dinner.
Day 2—Friday: Pike Place Market & Pioneer Square
Start the day in the classroom with an instructive talk by our photographer. Our first task this afternoon takes us to the oldest running farmers' market in the country, Pike Place Market. Work on portraits, street scenes, and food photographing. Then photograph the stately 19th century brick buildings of Pioneer Square, Seattle's historic center. End the day with an edit-and-critic meeting.
Day 3—Saturday: Olympic Sculpture Park & Space Needle
Head out to the Olympic Sculpture Park. Then go to the streets of the downtown area to get a unique view of the Space Needle, and photograph city life against a background of diverse architectural styles. Tonight, we'll present our best images to the group, enjoy dinner at a local restaurant and end our journey.
Cost
With hotel | Without hotel |
$2,020 | $1,395 |
Meals noted in the plan are included in both options(with and without hotel)
Dates
Jul 11 – 14, 2013 Aug 08—11, 2013 Sep 26 – 29, 2013
Contact Information
For questions about this workshop, please call 1-886-797-4686. Or you can visit the website: http://www. nationalgeographicexpeditions.com.
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