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Usage: Overview

Table 1: User statistics
Users Totals Residence Organization
Identified US Asia Europe Other Identified Edu. Ind. Gov. Other
Total Users 1
- Simulation Users 5
- Interactive Users 6
3,238 2,092 46% 30% 15% 8% 259 93% 0% 7% 0%
- Download Users 7
Table 2: Simulation Usage
No data found.
Table 3: Miscellaneous Statistics
No data found.
Table 4: User statistics by registered/unregistered
Users Totals Residence Organization
Identified US Asia Europe Other Identified Edu. Ind. Gov. Other
Total Users 1
- Registered Users 2
1,124 1,119 64% 16% 11% 8% 147 82% 13% 4% 1%
- Unregistered Interactive Users 3
2,562 1,455 31% 37% 19% 10% 85 89% 0% 11% 0%
- Unregistered Download Users 4

  1. Sum of Registered Users2, Unregistered Interactive Users3 and Unregistered Download Users4
  2. Number of Users that logged in. User registration assigns a unique login to each individual user.
  3. Number of Unregistered Users, identified by unique hosts/IPs, that had an active Session 10 without logging in. Does not include known web bots/crawlers.
  4. Number of Unregistered users, identified by unique hosts/IPs, that had an active session of less than 15 minutes without logging in and downloaded a non-interactive resource such as PDF or podcast. Does not include web bots/crawlers.
  5. Number of Registered Users2 that ran one or more simulation runs.
  6. All Unregistered Users, identified by unique hosts/IPs, that had an active Session 10. Does not include known web bots/crawlers.
  7. All Unregistered users, identified by unique hosts/IPs that downloaded a non-interactive resource such as PDF or podcast. Does not include known web bots/crawlers.
  8. Sum of Simulation Users 5 + Unregistered Interactive Users 3 including web bots/crawlers.
  9. Number of Simulation users that returned after a gap of 3 months.
  10. Begins when an IP is active on the site for at least 15 minutes. Ends when inactive for more than 30 minutes, including time spent viewing videos.
  11. Identified by a unique IP address / hostname.
  12. Based on MIT OCW metric of Visits: A visit is activity by a unique visitor delimitated by a 30 minute absence from the site on either side of the activity.
    These visits correspond to unique visitors 11. Does not include known web bots/crawlers
  13. Number of Simulation sessions that were shared between 2 or more users.