8 Matching Annotations
  1. Oct 2021
    1. random sample

      Is this a kind of waste?Can we find an optimal sample? If we can , does that mean we have to know the distribution or how to infer the distribution?

    1. Nonreactivity, however, does not ensure that these data are somehow a direct reflection of people’s behavior or attitudes.

      I think the worst thing is: it can only a direct reflection of some people's behavior or attitudes(40% or 50% ? I don't know). Mixing with that of people who tend to hide their true feelings on social medias, the measurements may be absurdly inaccurate(Is this a kind of system error?)

  2. www.bitbybitbook.com www.bitbybitbook.com
    1. systematic errors, the kinds of errors that I’ll describe below that arise from biases in how data are created

      Here comes the question: How can we detect them then eliminate them?

    1. billing data created by electric utilities

      That's really true. For example, we can use the big data of electricity to depict the resumption rate of factories after the pandemic.

  3. Sep 2021
    1. In fact, researchers must decide how to exercise their power based on inconsistent and overlapping rules, laws, and norms.

      It shouldn't be decided by researchers.

    2. By power, I mean the ability to do things to people without their consent or even awareness.

      Avoid using a patronizing tone!

    1. from the analog age to the digital age

      So what is the exact definition of digital age? When can we say that we live in a digital age?