Information flow during catastrophic events is a critical aspect of disaster management. Modern communication platforms, in particular online social networks, provide an opportunity to study such flow and derive early-warning sensors, thus improving emergency preparedness and response. Performance of the social networks sensor method, based on topological and behavioral properties derived from the “friendship paradox”, is studied here for over 50 million Twitter messages posted before, during, and after Hurricane Sandy. We find that differences in users’ network centrality effectively translate into moderate awareness advantage (up to 26 hours); and that geo-location of users within or outside of the hurricane-affected area plays a significant role in determining the scale of such an advantage. Emotional response appears to be universal regardless of the position in the network topology, and displays characteristic, easily detectable patterns, opening a possibility to implement a simple “sentiment sensing” technique that can detect and locate disasters.
Tweets database, part 1 of 5
Postgres database of tweets (backup created by pg_dump in pgAdmin). Partitioned into 5 smaller files with 'split' command. To assemble use "cat rawdata[1-5] > combined_rawdata.backup"
rawdata1
Tweets database, part 2 of 5
Postgres database of tweets (backup created by pg_dump in pgAdmin). Partitioned into 5 smaller files with 'split' command. To assemble use "cat rawdata[1-5] > combined_rawdata.backup"
rawdata2
Tweets database, part 3 of 5
Postgres database of tweets (backup created by pg_dump in pgAdmin). Partitioned into 5 smaller files with 'split' command. To assemble use "cat rawdata[1-5] > combined_rawdata.backup"
rawdata3
Tweets database, part 4 of 5
Postgres database of tweets (backup created by pg_dump in pgAdmin). Partitioned into 5 smaller files with 'split' command. To assemble use "cat rawdata[1-5] > combined_rawdata.backup"
rawdata4
Tweets database, part 5 of 5.
Postgres database of tweets (backup created by pg_dump in pgAdmin). Partitioned into 5 smaller files with 'split' command. To assemble use "cat rawdata[1-5] > combined_rawdata.backup"
rawdata5
Followees database, part 1 of 9
Postgres database of followees (backup created by pg_dump in pgAdmin). Partitioned into 9 smaller files with 'split' command. To assemble use "cat followees[1-9] > combined_followees.backup"
followees1
Followees database, part 2 of 9
Postgres database of followees (backup created by pg_dump in pgAdmin). Partitioned into 9 smaller files with 'split' command. To assemble use "cat followees[1-9] > combined_followees.backup"
followees2
Followees database, part 3 of 9
Postgres database of followees (backup created by pg_dump in pgAdmin). Partitioned into 9 smaller files with 'split' command. To assemble use "cat followees[1-9] > combined_followees.backup"
followees3
Followees database, part 4 of 9
Postgres database of followees (backup created by pg_dump in pgAdmin). Partitioned into 9 smaller files with 'split' command. To assemble use "cat followees[1-9] > combined_followees.backup"
followees4
Followees database, part 5 of 9
Postgres database of followees (backup created by pg_dump in pgAdmin). Partitioned into 9 smaller files with 'split' command. To assemble use "cat followees[1-9] > combined_followees.backup"
followees5
Followees database, part 6 of 9
Postgres database of followees (backup created by pg_dump in pgAdmin). Partitioned into 9 smaller files with 'split' command. To assemble use "cat followees[1-9] > combined_followees.backup"
followees6
Followees database, part 7 of 9
Postgres database of followees (backup created by pg_dump in pgAdmin). Partitioned into 9 smaller files with 'split' command. To assemble use "cat followees[1-9] > combined_followees.backup"
followees7
Followees database, part 8 of 9
Postgres database of followees (backup created by pg_dump in pgAdmin). Partitioned into 9 smaller files with 'split' command. To assemble use "cat followees[1-9] > combined_followees.backup"
followees8
Followees database, part 9 of 9
Postgres database of followees (backup created by pg_dump in pgAdmin). Partitioned into 9 smaller files with 'split' command. To assemble use "cat followees[1-9] > combined_followees.backup"
followees9
Data structure and instructions
Contains data description and instructions to recombine database backup and restore data tables
