阅读理解
Big
data(数据) is lot of sets of information that are put together so they can be
used by a computer program. The computer program looks for different kinds of answers
or patterns in the data. Big data can have different kinds of information from many
sources, such as information that
comes from schools, social media sites(社交媒体网站), companies
and governments. One set of data can have people's names and addresses. Another
set can have what they like, where they go to school, and how much time they spend
on the computer.
Big
data can be used in many ways. The government uses it to understand how many people
travel on buses or trains. This information is then used to make bus or train systems
better. Some schools use big data to understand which children may need more help
in class. The teacher can then give certain students more help or support so those
students can succeed in school. Companies use big data, too. It helps them understand
who buys their products. For example, one company uses weather data to see when
people eat the most ice cream.
Big
data can be used for good reasons. Some hospitals use big data to predict if a baby
who is born too early will get sick. The hospital can then take extra steps to take
care of that baby so he, she does not get sick. Big data can also be used for bad
reasons. It can be used to predict which kinds of people are likely to break the
law or hurt others, even if they have not done anything wrong.
How
can big data be used for good and bad things? It is because the computer programs
used to look at big data and understand it are written by people. People think a
certain way. Because they think a certain way, they build a model of those ideas.
These ideas are then used to look at the data. Sometimes, these ideas are helpful
for people or businesses. Other times, bad ideas can cause problems for certain
groups of people.
