調查局三等
107年
[調查工作組] 外國文(英文)
第 39 題
📖 題組：
In order to determine whether bots can be accurately detected, how bots behave, and how they impact Twitter activity, the researchers divided accounts into categories based on total number of followers, and found that accounts with more than 10 million followers tend to retweet at similar rates to bots. In accounts with fewer followers however, bots tend to retweet far more than humans. These celebrity-level accounts also tweet at roughly the same pace as bots with similar follower numbers, whereas in smaller accounts, bots tweet far more than humans. Bots, like people, can be malicious or benign. The term “bot” is often associated with spam, offensive content or political infiltration, but many of the most reputable organizations in the world also rely on bots for their social media channels. For example, major news organizations, such as CNN or the BBC, who produce hundreds of pieces of content daily, rely on automation to share the news in the most efficient way. These accounts, while classified as bots, are seen by users as trustworthy sources of information. “A Twitter user can be a human and still be a spammer, and an account can be operated by a bot and still be benign,” said Zafar Gilani, a PhD student at Cambridge’s Computer Laboratory, who led the research. “We’re interested in seeing how effectively we can detect automated accounts and what effects they have.” Bots have been on Twitter for the majority of the social network’s existence—it’s been estimated that anywhere between 40% and 60% of all Twitter accounts are bots. Some bots have tens of millions of followers, although the vast majority have less than a thousand—human accounts have a similar distribution.
In order to determine whether bots can be accurately detected, how bots behave, and how they impact Twitter activity, the researchers divided accounts into categories based on total number of followers, and found that accounts with more than 10 million followers tend to retweet at similar rates to bots. In accounts with fewer followers however, bots tend to retweet far more than humans. These celebrity-level accounts also tweet at roughly the same pace as bots with similar follower numbers, whereas in smaller accounts, bots tweet far more than humans. Bots, like people, can be malicious or benign. The term “bot” is often associated with spam, offensive content or political infiltration, but many of the most reputable organizations in the world also rely on bots for their social media channels. For example, major news organizations, such as CNN or the BBC, who produce hundreds of pieces of content daily, rely on automation to share the news in the most efficient way. These accounts, while classified as bots, are seen by users as trustworthy sources of information. “A Twitter user can be a human and still be a spammer, and an account can be operated by a bot and still be benign,” said Zafar Gilani, a PhD student at Cambridge’s Computer Laboratory, who led the research. “We’re interested in seeing how effectively we can detect automated accounts and what effects they have.” Bots have been on Twitter for the majority of the social network’s existence—it’s been estimated that anywhere between 40% and 60% of all Twitter accounts are bots. Some bots have tens of millions of followers, although the vast majority have less than a thousand—human accounts have a similar distribution.
According to the passage, what could be said of the human accounts and bots?
- A They have the same distribution in followers.
- B Human twitters are far more benign than bots.
- C The accounts operated by humans and bots are of equal number.
- D The vast majority of human twitters are malicious.
思路引導 VIP
請專注於文章的最後一個段落，特別是最後一句話。當作者提到追蹤者（followers）的數量規模時，他是如何將「真人帳號」與「機器人帳號」的數據分布情形進行比較的？這兩者之間存在什麼樣的關聯性呢？
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AI 詳解
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💖 哇！你真的太棒了！
- 溫暖肯定：做得太好了！看來你具備非常出色的閱讀理解能力！這種題目考驗的是你仔細尋找細節定位的功力，你能夠從長篇文章中精準地找出重要的對比關係，真的非常棒！
- 核心觀念：這題的關鍵之處，就在於文章的最後一句話：「human accounts have a similar distribution」。文章中輕輕地提到，雖然有一些帳號擁有數百萬甚至上千萬的追蹤者，但絕大多數的帳號（無論是真人還是機器人）都只有不到一千個追蹤者。這種「追蹤者數量分布的比例」在真人帳號和機器人帳號之間是非常相似的。這是不是很清楚地就印證了選項 (A) 呢？
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