Algorithm has become a widely used technology on various network platforms. Through data analysis and precise recommendations, it has changed the previous search mode of "people searching for information" and gradually achieved "information searching for people". People have different opinions on "algorithms". Some people believe that it facilitates users and provides more accurate network services; Some people believe that it is calculating users, causing problems such as information bias; Some people believe that as a technology, there is no distinction between good and bad, and the key lies in how to use the correct values and norms to govern it. Starting today, this edition will launch a series of reports on "Perspectives on Algorithms" to interpret the changes and impacts brought about by algorithms. The first article in the series focuses on the changes in information acquisition habits of netizens in the era of big data. The content of the current situation is more abundant, and the platform is more yuan. "The first reaction to problems encountered in the past was to open the browser to search. Now, in addition to searching the web page, we will also go to WeChat or short video platform to find answers." Wang Ying, a Beijing citizen, showed a short video to reporters: "You see, two days ago when we cooked, we wanted to make a fish flavored pork shred. When we looked for Tiktok, the teaching video came out." Wang Ying, 36 years old, He began to contact the Internet around 2000. In the first 10 years, there were two main ways for her to obtain information: searching on search engines and browsing portal websites. But in recent years, this habit has begun to change. "There is too much information online now, which is dazzling and difficult to distinguish. Sometimes, when specific information is needed, it is easier to find results in mobile applications." She explained while opening the phone interface: "For example, if you want to find shopping information, go to Taobao to browse; if you want to watch movies, go to Maoyan to search; if you want to learn about celebrity trends, go to Weibo to check; if you want to obtain professional knowledge, go to Zhihu search..." In Wang Ying's opinion, This kind of change is formed unconsciously. Frequently using various mobile apps every day, it's not difficult to easily search for them. Over time, the habit of searching for information on multiple platforms has formed. The most important thing is that after searching, the mobile application will remember its own needs and actively recommend information of interest, saving time and effort. Wang Ying's experience of using the internet is representative to a certain extent. The reporter conducted a small survey on the search behavior of 120 users, and the results showed that everyone has the habit of using search engines, but only 15% consider them as the only choice. Most people express that they will search for information in various mobile applications and frequently browse information recommended by various platforms. For example, when it comes to obtaining life experience information, many people choose to watch short videos, saying, "If you don't make a decision, video will teach you.". Industry data also confirms this point. As of June 2023, the number of search engine users in China has reached 841 million. But nearly 70% of users also complete searches through short videos, and the monthly active users of WeChat's "Search One Search" have exceeded 800 million, almost equivalent to the total number of search engine users. Another survey also showed that users search for information on an average of 3.8 platforms per day. Although the amount of online information has increased and there are more channels to obtain information, many users still express that they have "poor user experience". Letter