1 . “ Humans and machine algorithms (算法) have complementary (互补的) strengths and weaknesses. Each uses different sources of information and strategies to make predictions and decisions, ” said Mark Steyvers, UCI professor of cognitive sciences. “ We show through experiments that humans can improve the predictions of AI even when human accuracy is below that of the AI, and vice versa (反之亦然). This accuracy is higher than combining predictions from two individuals or two AI algorithms. ”
To test the framework, researchers conducted an image classification experiment where human participants and computer algorithms worked separately to correctly identify disorderly pictures of animals and everyday items including chairs, bottles, bicycles and trucks. The human participants ranked their confidence in the accuracy of each image identification as low, medium or high, while the machine classifier generated a continuous score. The results showed large differences in confidence between humans and AI algorithms across images.
“ Human participants were confident that a particular picture contained a chair, for example, while the AI algorithm was confused about the image, ” said Padhraic Smyth, UCI Chancellor’s Professor of computer science. “ Similarly, the AI algorithm was able to confidently provide a label for the object shown, while human participants were unsure if the disorderly picture contained any recognizable object. ”
When predictions and confidence scores from both were combined using the researchers’ new Bayesian framework, the mixed model led to better performance than either human or machine predictions achieved alone.
“ While the past research has demonstrated the benefits of combining machine predictions or combining human predictions, this work shows a new direction in demonstrating the potential of combining human and machine predictions, pointing to new and improved approaches to human-AI cooperation, ” Smyth said.
“ The blend of cognitive science focusing on understanding how humans think and behave and computer science in which technologies are produced will provide further insight into how humans and machines can cooperate to build more accurate artificially intelligent systems, ” the researchers said.
1. Which of the following may the research’s findings agree with?| A．Humans have poor performance in making predictions. |
| B．Humans and machine algorithms should work together. |
| C．Machine algorithms have low accuracy in calculation. |
| D．Machine algorithms failed in the classification experiment. |
| A．Comparison. | B．Assumption. | C．Giving examples. | D．Analysing reasons. |
| A．Difference. | B．Combination. | C．Contradiction. | D．Advantage. |
| A．Humans are confident of their predictions |
| B．Humans can improve the predictions of AI |
| C．Develop mixed human- machine model for smarter AI |
| D．Identify the strengths of humans and machine algorithms |
1.你对假期的理解；
2.你的个人选择及原因。
注意：1.词数100左右；开头结尾已给出，不计入总数；
2.可适当增加细节，以使行文连贯。
Dear Tom,
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Yours,
Li Hua
3 . My best friend traveled to stay with our family last weekend. When she arrived, she went straight to the kitchen and, without asking, ate a spoonful of raspberry jam and some dried fruit. She wasn’t being rude. I knew she would do this. We’ve known each other for almost 20 years. She can eat anything she wants from my kitchen. Indeed, I bought her favorite fruits and snacks at the shop that morning.
Our long weekend together was luxuriously (惬意地) simple. I was recovering from surgery (手术) and couldn’t go to shopping malls. We passed the time running errands (做杂事), going to the post office and collecting dry cleaning. We drank way too many cappuccinos. But we talked about every little detail of our lives.
There’s never been a quiet moment in our friendship. We’ve lived in different cities for almost a decade. Reunions demand constant conversation. our personalities are matched, to be sure, and a shared history is indescribably valuable. We were competitors in high school before bonding over a bad experience. Then we discovered the many interests that we had in common. Our friendship cemented (巩固) itself quickly. We stayed companions through law school, through our first jobs and our first boyfriends. We supported each other through break-ups and breakthroughs. Ours is a friendship for the ages.
There is something special about friends who know everyone and everything about you. They are rare. These are the people you’ve chosen to witness your life. They have seen the bright lights of achievement, the depths of despair (绝望) and the boring routine (平淡乏味) of the in-between.
It’s special to unpack feelings and frustrations without wasting time filling in the blanks. As my long weekend shows, with such friends we don’t have to “do”, we simply have to “be”. We drop the act, the performance, the public version of ourselves.
The special friendships are those which never fail to delight, the continuation of which is worth the extra effort, despite distance and difference sneaking (溜进) into your separate lives. I had the very great joy of this reminder last weekend. I’m lucky to have found this friend, to see a future where her companionship remains. Being together is perfection.
1. What happened during her best friend’s visit?| A．They enjoyed an eventful long weekend. | B．They bonded by having long conversations. |
| C．They made their favorite snacks and coffee. | D．They talked about recent news events. |
| A．they help each other deal with the boredom of life |
| B．they prefer to witness each other’s lives from far away |
| C．they try to show each other their best selves |
| D．they are comfortable being themselves when together |
| A．Charm comes from differences. | B．Politeness brings best friends closer. |
| C．Good friendships last naturally. | D．Good friendships need devotion. |
| A．describe what her best friend is like | B．tell about the friendship she treasures |
| C．explore the key aspects of friendship | D．express thanks to her best friend |
4 . If you really want to go green, here’s good news: eating green foods is good for you. The very foods with a high carbon dioxide cost — dairy products, processed snacks — also tend to be filled with fat and calories. A green diet would be mostly vegetables and fruits, wholegrains, fish and lean meats like chicken — a diet that’s eco- and waistline-friendly. Eating green foods can be healthier and beneficial to the climate.
It may be hard to believe that a meal at McDonalds produces more carbon dioxide than that your trip to a faraway place produces. More than 37% of the world’s land is used for agriculture, much of which was once forested. Deforestation (砍伐森林) is a major source of carbon dioxide. The fertilizer (肥料) and machinery needed on a modern farm also have a large carbon footprint, as does the network of ships and trucks that brings the food from the farm to your plate.
The most efficient way to reduce the carbon footprint of your menu is to eat less meat, especially beef. Raising cattle takes a lot more energy than growing the equivalent (相等的) amount of grains, fruits or vegetables. What’s more, the majority of cattle in the U.S. are fed on grains and the fertilizer used to grow grains creates separate environmental problems.
Focus on eating food lower on the food chain, with more plants and fruits and less meat and fewer dairy products. It’s simple. We can change today what goes into our bodies for the health of our planet and ourselves.
1. According to the passage, eating green foods will ______.| A．protect the animals from being killed |
| B．promote the development of agriculture |
| C．help us lose weight and keep self-confidence |
| D．be good for our health and make a change of the climate |
| A．Deforestation. | B．Grains. |
| C．Machinery. | D．Fertilizer. |
| A．eat more vegetables than meat |
| B．stop raising cattle |
| C．plant more grains |
| D．use less fertilizer |
| A．The benefits of eating green foods. |
| B．How to reduce carbon dioxide. |
| C．The change of our menu. |
| D．The ways of keeping healthy. |
| 我眼中的财富 | 至少两点，比如友谊、理想 …… |
| 拥有它们的意义 | 1. 拥有它们对学习、生活的作用 2. 失去它们对学习、生活的影响 |
| 获取它们的途径 | （请考生根据自己的经历或感想，提出至少两种做法） |
注意：
1. 词数150左右。开头已经写好，不计入总词数。
2. 作文中不得提及考生所在学校和本人姓名。
My Treasures
In our life, we have treasures like money, houses and cars, etc. However, we have a lot more hidden treasures, such as knowledge, health and experiences. As a senior student, I think the most important treasures in our life are
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