Примери коришћења Blumenstock на Енглеском и њихови преводи на Српски
{-}
-
Colloquial
-
Ecclesiastic
-
Computer
-
Latin
-
Cyrillic
Adapted from Blumenstock.
Blumenstock was interested in measuring wealth and well-being.
Figure 3.16: Schematic of the study by Blumenstock, Cadamuro, and On(2015).
Adapted from Blumenstock, Cadamuro, and On(2015), figures 1a and 3c.
Peer to peer economic transfers earthquake mobile money data Blumenstock, Fafchamps, and Eagle(2011).
Људи такође преводе
In particular, Blumenstock split his data into 10 chunks of 100 people each.
For more about the machine learning approaches in Blumenstock, Cadamuro, and On(2015), see James et al.
Recall that Blumenstock was interested in measuring wealth and well-being.
Finally, for more about the machine learning approaches in Blumenstock, Cadamuro, and On(2015), see James et al.
For example, Blumenstock could predict with 97.6% accuracy if someone owned a radio.
These dramatically faster and lower cost estimates create new possibilities for researchers, governments,and companies(Blumenstock, Cadamuro, and On 2015).
To start, Blumenstock partnered with the largest mobile phone provider in Rwanda.
To get a sense of the quality of their estimates, Blumenstock and colleagues needed to compare them with something else.
Thus, Blumenstock and colleagues might suffer from the types of coverage errors that biased the 1936 Literary Digest survey that I described earlier.
In addition to the millions of calls from family, friends, and business associates,about 1,000 Rwandans received a call from Joshua Blumenstock and his colleagues.
In addition to the survey data, Blumenstock and colleagues also had the complete call records for all 1.5 million people.
In addition to the millions of calls from family, friends, and business associates,about 1,000 Rwandans received a call from Joshua Blumenstock and his colleagues.
If this was possible, then Blumenstock could use this model to predict the survey responses of all 1.5 million customers.
First, in the feature engineering step,for everyone that was interviewed, Blumenstock converted the call records into a set of characteristics about each person;
In this case, Blumenstock used logistic regression, but he could have used a variety of other statistical or machine learning approaches.
In other words, by combining a small amount of survey data with the call records, Blumenstock and colleagues were able to produce estimates comparable to those from gold-standard approaches.
Thus, Blumenstock and colleagues might suffer from the types of coverage errors that biased the 1936 Literary Digest survey that I described earlier.
In order to evaluate the performance of his predictive model, Blumenstock used cross-validation, a technique commonly used in data science but rarely in social science.
In this case, Blumenstock used logistic regression with 10-fold cross-validation, but he could have used a variety of other statistical or machine learning approaches.
Next, in the supervised learning step, Blumenstock built a model to predict the survey response for each person based on their features.
In this case, Blumenstock used logistic regression with 10-fold cross-validation, but he could have used a variety of other statistical or machine learning approaches.
Next, in the supervised learning step, Blumenstock built a statistical model to predict the survey response for each person based on their features.
In conclusion, Blumenstock's amplified asking approach combined survey data with digital trace data to produce estimates comparable with gold-standard survey estimates.
Putting these two estimates together, Blumenstock and colleagues produced an estimate of the geographic distribution of subscriber wealth at extremely fine spatial granularity.
In conclusion, Blumenstock's amplified asking approach combined survey data with a big data source to produce estimates comparable to those from a gold-standard survey.