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| author | Thibaut Horel <thibaut.horel@gmail.com> | 2015-09-14 23:08:02 -0400 |
|---|---|---|
| committer | Thibaut Horel <thibaut.horel@gmail.com> | 2015-09-14 23:08:02 -0400 |
| commit | ab0b1f3cefedb35327a19ec1b6afd560bfdf802d (patch) | |
| tree | b777f3e2c0ac0e712d8c5faab5107b1d236e2c3a /ic_experiments/new.py | |
| parent | 960676226862d2d68c7a9c04c56d4f8157803025 (diff) | |
| download | criminal_cascades-ab0b1f3cefedb35327a19ec1b6afd560bfdf802d.tar.gz | |
Import supplements and repo reorganization
Diffstat (limited to 'ic_experiments/new.py')
| -rw-r--r-- | ic_experiments/new.py | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/ic_experiments/new.py b/ic_experiments/new.py new file mode 100644 index 0000000..4274dd7 --- /dev/null +++ b/ic_experiments/new.py @@ -0,0 +1,23 @@ +from math import log, exp + +T = 100 +N = 100 + + +def kernel(t, mu): + return mu * exp(-mu * t) + + +def base_rate(t, lamb): + return lamb + + +def ll(crimes, weights, mu, lamb): + r = 0 + for i, crime in enumerate(crimes): + t, v = crime + a = sum(weights[(u, v)] * kernel(t - s, mu) for s, u in crimes[:t]) + r += log(base_rate(t, lamb) + a) + for j in range(N): + a = sum(weights[(u, v)] * kernel(T - s, mu) for s, u in crimes) + r -= log(a) |
