A new method measures the integration or segregation of immigrants based on their tweets

March 15, 2018, Spanish National Research Council

An international team led by researchers from the Spanish National Research Council (CSIC) has developed a method to measure the integration or segregation of immigrants based on the messages they write on the social network Twitter. In the work, published in the journal PLOS ONE, the researchers developed a method to use Twitter data to analyse the degree of spatial segregation of immigrant communities. "The users' communities of origin are determined by the language in which the tweets are posted, establishing an 'idiomatic algebra' to assign the most likely community to which a tweet belongs," explains the study's director, José Javier Ramasco, CSIC researcher at the Institute for Cross-Disciplinary Physics and Complex Systems, in Mallorca, Spain.

"If all the messages are in the local language, then the user is considered to be a local resident. On the other hand, if some messages are in the language of an , it can be assumed that the user knows that language and belongs to that community," he adds.

The language used, together with the location of the messages, make it possible to find the typical residential areas of the different communities and to study whether they are more or less concentrated in those areas than the local population. "This method has allowed us to analyse communities in 53 of the world's largest cities. In each one of them we can define a metric that measures the spatial integration capacity of the immigrants living there," Ramasco explains.

By applying this metric, cities can be divided into three categories: those with high integration capacity, those with few or highly segregated immigrant communities, and an intermediate category between both extremes, explains Ramasco. "In the first group (high integration) we find cities such as London, San Francisco, Tokyo and Los Angeles, while at the other extreme (low integration), we see cities such as Detroit, Miami, Toronto and Amsterdam," he explains.

In addition to considering cities, the researchers can analyse how different cultures are integrated within the countries where these cities are located. The best integration is found among nearby cultures, for example, Latin-based speakers (speakers of Portuguese and Italian) in South American Spanish-speaking countries, or those from European countries within the United Kingdom. The cases of greater segregation occur between extremely different cultures.

This method offers a new source of data to analyse the segregation or spatial integration of immigrants' residences. The online data, which is intended for other purposes, is immense, and constantly updated. These studies offer a significantly reduced-cost form of access to near real-time information, with study areas on a global scale. "We hope that this first work will open up the possibility for future use of this data to study . We also hope that it may be a valuable complement beyond the scientific community for managers and public authorities who are in charge of immigration," concludes Ramasco.

Explore further: Mapping migrant communities across Europe to support local integration

Related Stories

Recommended for you

Can China keep it's climate promises?

March 26, 2019

China can easily meet its Paris climate pledge to peak its greenhouse gas emissions by 2030, but sourcing 20 percent of its energy needs from renewables and nuclear power by that date may be considerably harder, researchers ...

What happened before the Big Bang?

March 26, 2019

A team of scientists has proposed a powerful new test for inflation, the theory that the universe dramatically expanded in size in a fleeting fraction of a second right after the Big Bang. Their goal is to give insight into ...

Cellular microRNA detection with miRacles

March 26, 2019

MicroRNAs (miRNAs) are short noncoding regulatory RNAs that can repress gene expression post-transcriptionally and are therefore increasingly used as biomarkers of disease. Detecting miRNAs can be arduous and expensive as ...

In the Tree of Life, youth has its advantages

March 26, 2019

It's a question that has captivated naturalists for centuries: Why have some groups of organisms enjoyed incredibly diversity—like fish, birds, insects—while others have contained only a few species—like humans.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.