54 citations · 81 across the 5 of their papers we have counts for
4 papers · 1 filter
Sentiment in New York City: A High Resolution Spatial and Temporal View
Karla Z. Bertrand, Maya Bialik, Kawandeep Virdee +2
Measuring public sentiment is a key task for researchers and policymakers alike. The explosion of available social media data allows for a more time-sensitive and geographically sp…
A Complex Systems Science Approach to Healthcare Costs and Quality
Yaneer Bar-Yam with Shlomiya Bar-Yam, Karla Z. Bertrand, Nancy Cohen +3
There is a mounting crisis in delivering affordable healthcare in the US. For decades, key decision makers in the public and private sectors have considered cost-effectiveness in h…
UPDATE February 2012 - The Food Crises: Predictive validation of a quantitative model of food prices including speculators and ethanol conversion
Marco Lagi, Yavni Bar-Yam, Karla Z. Bertrand +1
Increases in global food prices have led to widespread hunger and social unrest---and an imperative to understand their causes. In a previous paper published in September 2011, we…
The Food Crises and Political Instability in North Africa and the Middle East
Marco Lagi, Karla Z. Bertrand, Yaneer Bar-Yam
Social unrest may reflect a variety of factors such as poverty, unemployment, and social injustice. Despite the many possible contributing factors, the timing of violent protests i…