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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
97 69 42% 32% 22% 4% 19 89% 11% 0% 0%
- Simulation Users 5
0 0 0% 0% 0% 0% 0 0% 0% 0% 0%
- Interactive Users 6
43 39 67% 21% 13% 0% 10 100% 0% 0% 0%
- Download Users 7
47 44 39% 32% 23% 7% 2 100% 0% 0% 0%
Table 2: Simulation Usage
Simulation Users 5 0 users
Table 3: Miscellaneous Statistics
Domains Served 218
Cummulative Interactive User Sessions 10 104
Cummulative Session Time 53 days
Visitors 11 627
Visits 12 1,128
New Accounts 2
Max User Logins 4 users on 2012-01-27
Web Server Hits 102,237
Table 4: User statistics by registered/unregistered
Users Totals Residence Organization
Identified US Asia Europe Other Identified Edu. Ind. Gov. Other
Total Users 1
97 69 42% 32% 22% 4% 19 89% 11% 0% 0%
- Registered Users 2
21 0 0% 0% 0% 0% 6 100% 0% 0% 0%
- Unregistered Interactive Users 3
31 27 52% 30% 19% 0% 8 100% 0% 0% 0%
- Unregistered Download Users 4
45 42 36% 33% 24% 7% 5 60% 40% 0% 0%
  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.