diff --git a/Makefile b/Makefile
index 57d960a..b480f31 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ src/naive_bayes_simp.hk:
 
 src/NaiveBayes.hs: src/naive_bayes_simp.hk
 	# compile src/naive_bayes_simp.hk -o src/NaiveBayes.hs -M NaiveBayes
-	summary --logfloat-prelude src/naive_bayes_simp.hk -o src/NaiveBayes.hs -M NaiveBayes
+	# summary --logfloat-prelude src/naive_bayes_simp.hk -o src/NaiveBayes.hs -M NaiveBayes
 
 build: src/NaiveBayes.hs data
 	stack build
diff --git a/app/TCP.hs b/app/TCP.hs
index 3d4377c..789310a 100644
--- a/app/TCP.hs
+++ b/app/TCP.hs
@@ -1,5 +1,6 @@
 module Main where
 
+import System.Environment (getArgs)
 import qualified Data.ByteString.Char8 as B
 import News (getNews)
 import qualified System.Random.MWC as MWC
@@ -13,7 +14,9 @@ import Data.List (sort)
 import Data.Number.LogFloat
 
 main = do
-  (words, docs, topics) <- getNews (Just 10) [0..]
+  args <- getArgs
+  let n = (read (head args)) :: Int
+  (words, docs, topics) <- getNews (Just n) [0..]
   g <- MWC.create
   let 
     zPrior = onesFrom topics
diff --git a/confusion.R b/confusion.R
index e32acd9..4e15e5f 100644
--- a/confusion.R
+++ b/confusion.R
@@ -1,10 +1,12 @@
+args <- commandArgs(TRUE)
+arg <- args[1]
 # Make sure we have all the packages we need
 deps <- c("ggplot2", "reshape2")
 new.packages <- deps[!(deps %in% installed.packages()[,"Package"])]
 if(length(new.packages)) install.packages(new.packages)
 for(dep in deps) do.call("library",list(dep))
 
-conf <- table(read.csv("./nb-confusion.csv"))
+conf <- table(read.csv(paste(arg, "csv", sep=".")))
 
 g <- ggplot(as.data.frame(conf ), aes(y=true, x=predicted, fill=Freq))+geom_tile() 
-ggsave("nb-confusion.pdf", plot=g)
\ No newline at end of file
+ggsave(paste(arg, "png", sep="."), plot=g, width=4, height=3, dpi=300)
diff --git a/eval/README.md b/eval/README.md
new file mode 100644
index 0000000..32bf7d0
--- /dev/null
+++ b/eval/README.md
@@ -0,0 +1,20 @@
+# Evaluation results
+Inital evaluation performed by Max Orhai at Galois, May 2017.
+
+## Method
+On a MacBook Pro I timed and ran the submitted solution 100 times, with training sets ranging from 1 to 100 documents per topic.
+The captured output was [scored](score.py) for accuracy.
+The scores and timing are summarized in a [CSV](scores.csv).
+
+## Accuracy
+The classifier performs well, attaining 60% accuracy after only 20 sampled documents per topic, and approaching 80% when given more training data.
+
+The animation below shows the improvement as the size of the training set ranges from 1 to 100 documents for each of the 20 newsgroups.
+
+![animated confusion matrix](nb-confusion.gif)
+
+## Performance
+As expected, run times are quadratic in the input size.
+The plot below shows the (dimensionless) proportion of correctly classified documents along with the number of seconds *per document*, so it appears linear.
+
+![performance plot](performance.png)
diff --git a/eval/csv/nb-confusion-001.csv b/eval/csv/nb-confusion-001.csv
new file mode 100644
index 0000000..6259f72
--- /dev/null
+++ b/eval/csv/nb-confusion-001.csv
@@ -0,0 +1,21 @@
+true, predicted
+0, 6
+1, 6
+2, 14
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+4, 3
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+19, 17
diff --git a/eval/csv/nb-confusion-002.csv b/eval/csv/nb-confusion-002.csv
new file mode 100644
index 0000000..5247561
--- /dev/null
+++ b/eval/csv/nb-confusion-002.csv
@@ -0,0 +1,41 @@
+true, predicted
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diff --git a/eval/csv/nb-confusion-003.csv b/eval/csv/nb-confusion-003.csv
new file mode 100644
index 0000000..042a72c
--- /dev/null
+++ b/eval/csv/nb-confusion-003.csv
@@ -0,0 +1,61 @@
+true, predicted
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diff --git a/eval/csv/nb-confusion-004.csv b/eval/csv/nb-confusion-004.csv
new file mode 100644
index 0000000..9daf96a
--- /dev/null
+++ b/eval/csv/nb-confusion-004.csv
@@ -0,0 +1,81 @@
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diff --git a/eval/csv/nb-confusion-005.csv b/eval/csv/nb-confusion-005.csv
new file mode 100644
index 0000000..6799131
--- /dev/null
+++ b/eval/csv/nb-confusion-005.csv
@@ -0,0 +1,101 @@
+true, predicted
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diff --git a/eval/csv/nb-confusion-006.csv b/eval/csv/nb-confusion-006.csv
new file mode 100644
index 0000000..b6adac3
--- /dev/null
+++ b/eval/csv/nb-confusion-006.csv
@@ -0,0 +1,121 @@
+true, predicted
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diff --git a/eval/csv/nb-confusion-007.csv b/eval/csv/nb-confusion-007.csv
new file mode 100644
index 0000000..34d48f1
--- /dev/null
+++ b/eval/csv/nb-confusion-007.csv
@@ -0,0 +1,141 @@
+true, predicted
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diff --git a/eval/csv/nb-confusion-008.csv b/eval/csv/nb-confusion-008.csv
new file mode 100644
index 0000000..97b2919
--- /dev/null
+++ b/eval/csv/nb-confusion-008.csv
@@ -0,0 +1,161 @@
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diff --git a/eval/csv/nb-confusion-009.csv b/eval/csv/nb-confusion-009.csv
new file mode 100644
index 0000000..22d70b4
--- /dev/null
+++ b/eval/csv/nb-confusion-009.csv
@@ -0,0 +1,181 @@
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diff --git a/eval/csv/nb-confusion-010.csv b/eval/csv/nb-confusion-010.csv
new file mode 100644
index 0000000..e73bbab
--- /dev/null
+++ b/eval/csv/nb-confusion-010.csv
@@ -0,0 +1,201 @@
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diff --git a/eval/csv/nb-confusion-011.csv b/eval/csv/nb-confusion-011.csv
new file mode 100644
index 0000000..f133c11
--- /dev/null
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diff --git a/eval/csv/nb-confusion-012.csv b/eval/csv/nb-confusion-012.csv
new file mode 100644
index 0000000..354bb5b
--- /dev/null
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diff --git a/eval/csv/nb-confusion-013.csv b/eval/csv/nb-confusion-013.csv
new file mode 100644
index 0000000..3cbc963
--- /dev/null
+++ b/eval/csv/nb-confusion-013.csv
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diff --git a/eval/csv/nb-confusion-014.csv b/eval/csv/nb-confusion-014.csv
new file mode 100644
index 0000000..0ba2def
--- /dev/null
+++ b/eval/csv/nb-confusion-014.csv
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diff --git a/eval/csv/nb-confusion-015.csv b/eval/csv/nb-confusion-015.csv
new file mode 100644
index 0000000..7fe4ec9
--- /dev/null
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new file mode 100644
index 0000000..4fded0e
--- /dev/null
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diff --git a/eval/csv/nb-confusion-017.csv b/eval/csv/nb-confusion-017.csv
new file mode 100644
index 0000000..5ef0d2a
--- /dev/null
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diff --git a/eval/csv/nb-confusion-018.csv b/eval/csv/nb-confusion-018.csv
new file mode 100644
index 0000000..d97404d
--- /dev/null
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diff --git a/eval/csv/nb-confusion-019.csv b/eval/csv/nb-confusion-019.csv
new file mode 100644
index 0000000..44a6910
--- /dev/null
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diff --git a/eval/csv/nb-confusion-020.csv b/eval/csv/nb-confusion-020.csv
new file mode 100644
index 0000000..282dce7
--- /dev/null
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diff --git a/eval/csv/nb-confusion-021.csv b/eval/csv/nb-confusion-021.csv
new file mode 100644
index 0000000..a81c933
--- /dev/null
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diff --git a/eval/csv/nb-confusion-022.csv b/eval/csv/nb-confusion-022.csv
new file mode 100644
index 0000000..490aa72
--- /dev/null
+++ b/eval/csv/nb-confusion-022.csv
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diff --git a/eval/csv/nb-confusion-023.csv b/eval/csv/nb-confusion-023.csv
new file mode 100644
index 0000000..bd67199
--- /dev/null
+++ b/eval/csv/nb-confusion-023.csv
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diff --git a/eval/csv/nb-confusion-024.csv b/eval/csv/nb-confusion-024.csv
new file mode 100644
index 0000000..8d4d2f4
--- /dev/null
+++ b/eval/csv/nb-confusion-024.csv
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diff --git a/eval/csv/nb-confusion-025.csv b/eval/csv/nb-confusion-025.csv
new file mode 100644
index 0000000..11f0c16
--- /dev/null
+++ b/eval/csv/nb-confusion-025.csv
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diff --git a/eval/csv/nb-confusion-026.csv b/eval/csv/nb-confusion-026.csv
new file mode 100644
index 0000000..954b6c7
--- /dev/null
+++ b/eval/csv/nb-confusion-026.csv
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diff --git a/eval/csv/nb-confusion-027.csv b/eval/csv/nb-confusion-027.csv
new file mode 100644
index 0000000..1001077
--- /dev/null
+++ b/eval/csv/nb-confusion-027.csv
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diff --git a/eval/csv/nb-confusion-028.csv b/eval/csv/nb-confusion-028.csv
new file mode 100644
index 0000000..10dc083
--- /dev/null
+++ b/eval/csv/nb-confusion-028.csv
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diff --git a/eval/csv/nb-confusion-029.csv b/eval/csv/nb-confusion-029.csv
new file mode 100644
index 0000000..b48dd57
--- /dev/null
+++ b/eval/csv/nb-confusion-029.csv
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diff --git a/eval/csv/nb-confusion-030.csv b/eval/csv/nb-confusion-030.csv
new file mode 100644
index 0000000..3d62b33
--- /dev/null
+++ b/eval/csv/nb-confusion-030.csv
@@ -0,0 +1,601 @@
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diff --git a/eval/csv/nb-confusion-031.csv b/eval/csv/nb-confusion-031.csv
new file mode 100644
index 0000000..af56184
--- /dev/null
+++ b/eval/csv/nb-confusion-031.csv
@@ -0,0 +1,621 @@
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diff --git a/eval/csv/nb-confusion-032.csv b/eval/csv/nb-confusion-032.csv
new file mode 100644
index 0000000..e148e4c
--- /dev/null
+++ b/eval/csv/nb-confusion-032.csv
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diff --git a/eval/csv/nb-confusion-033.csv b/eval/csv/nb-confusion-033.csv
new file mode 100644
index 0000000..a9ac3de
--- /dev/null
+++ b/eval/csv/nb-confusion-033.csv
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diff --git a/eval/csv/nb-confusion-034.csv b/eval/csv/nb-confusion-034.csv
new file mode 100644
index 0000000..790ec1f
--- /dev/null
+++ b/eval/csv/nb-confusion-034.csv
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diff --git a/eval/csv/nb-confusion-035.csv b/eval/csv/nb-confusion-035.csv
new file mode 100644
index 0000000..2be6f0c
--- /dev/null
+++ b/eval/csv/nb-confusion-035.csv
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diff --git a/eval/csv/nb-confusion-036.csv b/eval/csv/nb-confusion-036.csv
new file mode 100644
index 0000000..2fe6de0
--- /dev/null
+++ b/eval/csv/nb-confusion-036.csv
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diff --git a/eval/csv/nb-confusion-037.csv b/eval/csv/nb-confusion-037.csv
new file mode 100644
index 0000000..5e0b2ca
--- /dev/null
+++ b/eval/csv/nb-confusion-037.csv
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diff --git a/eval/csv/nb-confusion-038.csv b/eval/csv/nb-confusion-038.csv
new file mode 100644
index 0000000..fbd54e8
--- /dev/null
+++ b/eval/csv/nb-confusion-038.csv
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diff --git a/eval/csv/nb-confusion-039.csv b/eval/csv/nb-confusion-039.csv
new file mode 100644
index 0000000..587e00f
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diff --git a/eval/csv/nb-confusion-040.csv b/eval/csv/nb-confusion-040.csv
new file mode 100644
index 0000000..d860337
--- /dev/null
+++ b/eval/csv/nb-confusion-040.csv
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diff --git a/eval/csv/nb-confusion-041.csv b/eval/csv/nb-confusion-041.csv
new file mode 100644
index 0000000..9c7bceb
--- /dev/null
+++ b/eval/csv/nb-confusion-041.csv
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diff --git a/eval/csv/nb-confusion-042.csv b/eval/csv/nb-confusion-042.csv
new file mode 100644
index 0000000..eb08264
--- /dev/null
+++ b/eval/csv/nb-confusion-042.csv
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diff --git a/eval/csv/nb-confusion-043.csv b/eval/csv/nb-confusion-043.csv
new file mode 100644
index 0000000..9d55a3f
--- /dev/null
+++ b/eval/csv/nb-confusion-043.csv
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diff --git a/eval/csv/nb-confusion-044.csv b/eval/csv/nb-confusion-044.csv
new file mode 100644
index 0000000..dac9099
--- /dev/null
+++ b/eval/csv/nb-confusion-044.csv
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diff --git a/eval/csv/nb-confusion-045.csv b/eval/csv/nb-confusion-045.csv
new file mode 100644
index 0000000..74f8b30
--- /dev/null
+++ b/eval/csv/nb-confusion-045.csv
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diff --git a/eval/csv/nb-confusion-046.csv b/eval/csv/nb-confusion-046.csv
new file mode 100644
index 0000000..d0dbb7a
--- /dev/null
+++ b/eval/csv/nb-confusion-046.csv
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diff --git a/eval/csv/nb-confusion-047.csv b/eval/csv/nb-confusion-047.csv
new file mode 100644
index 0000000..7ca88c2
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diff --git a/eval/csv/nb-confusion-048.csv b/eval/csv/nb-confusion-048.csv
new file mode 100644
index 0000000..9fe49d8
--- /dev/null
+++ b/eval/csv/nb-confusion-048.csv
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diff --git a/eval/csv/nb-confusion-049.csv b/eval/csv/nb-confusion-049.csv
new file mode 100644
index 0000000..b5e86fd
--- /dev/null
+++ b/eval/csv/nb-confusion-049.csv
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diff --git a/eval/csv/nb-confusion-050.csv b/eval/csv/nb-confusion-050.csv
new file mode 100644
index 0000000..587db4e
--- /dev/null
+++ b/eval/csv/nb-confusion-050.csv
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diff --git a/eval/csv/nb-confusion-051.csv b/eval/csv/nb-confusion-051.csv
new file mode 100644
index 0000000..4654993
--- /dev/null
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diff --git a/eval/csv/nb-confusion-052.csv b/eval/csv/nb-confusion-052.csv
new file mode 100644
index 0000000..fc8d692
--- /dev/null
+++ b/eval/csv/nb-confusion-052.csv
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diff --git a/eval/csv/nb-confusion-053.csv b/eval/csv/nb-confusion-053.csv
new file mode 100644
index 0000000..39edfe7
--- /dev/null
+++ b/eval/csv/nb-confusion-053.csv
@@ -0,0 +1,1061 @@
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diff --git a/eval/csv/nb-confusion-054.csv b/eval/csv/nb-confusion-054.csv
new file mode 100644
index 0000000..1d6b888
--- /dev/null
+++ b/eval/csv/nb-confusion-054.csv
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diff --git a/eval/csv/nb-confusion-055.csv b/eval/csv/nb-confusion-055.csv
new file mode 100644
index 0000000..007dae2
--- /dev/null
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diff --git a/eval/csv/nb-confusion-056.csv b/eval/csv/nb-confusion-056.csv
new file mode 100644
index 0000000..784eed1
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diff --git a/eval/csv/nb-confusion-057.csv b/eval/csv/nb-confusion-057.csv
new file mode 100644
index 0000000..712ab0a
--- /dev/null
+++ b/eval/csv/nb-confusion-057.csv
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diff --git a/eval/csv/nb-confusion-058.csv b/eval/csv/nb-confusion-058.csv
new file mode 100644
index 0000000..6812e88
--- /dev/null
+++ b/eval/csv/nb-confusion-058.csv
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diff --git a/eval/csv/nb-confusion-059.csv b/eval/csv/nb-confusion-059.csv
new file mode 100644
index 0000000..981eb93
--- /dev/null
+++ b/eval/csv/nb-confusion-059.csv
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diff --git a/eval/csv/nb-confusion-060.csv b/eval/csv/nb-confusion-060.csv
new file mode 100644
index 0000000..4b7de2e
--- /dev/null
+++ b/eval/csv/nb-confusion-060.csv
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diff --git a/eval/csv/nb-confusion-061.csv b/eval/csv/nb-confusion-061.csv
new file mode 100644
index 0000000..ca867f0
--- /dev/null
+++ b/eval/csv/nb-confusion-061.csv
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diff --git a/eval/csv/nb-confusion-062.csv b/eval/csv/nb-confusion-062.csv
new file mode 100644
index 0000000..b5ac71c
--- /dev/null
+++ b/eval/csv/nb-confusion-062.csv
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diff --git a/eval/csv/nb-confusion-063.csv b/eval/csv/nb-confusion-063.csv
new file mode 100644
index 0000000..8d1bd50
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diff --git a/eval/csv/nb-confusion-064.csv b/eval/csv/nb-confusion-064.csv
new file mode 100644
index 0000000..a3acf72
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diff --git a/eval/csv/nb-confusion-065.csv b/eval/csv/nb-confusion-065.csv
new file mode 100644
index 0000000..5a065a1
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diff --git a/eval/csv/nb-confusion-066.csv b/eval/csv/nb-confusion-066.csv
new file mode 100644
index 0000000..b64db9d
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diff --git a/eval/csv/nb-confusion-067.csv b/eval/csv/nb-confusion-067.csv
new file mode 100644
index 0000000..fe1fb37
--- /dev/null
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diff --git a/eval/csv/nb-confusion-068.csv b/eval/csv/nb-confusion-068.csv
new file mode 100644
index 0000000..2ad2abf
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diff --git a/eval/csv/nb-confusion-069.csv b/eval/csv/nb-confusion-069.csv
new file mode 100644
index 0000000..8818520
--- /dev/null
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diff --git a/eval/csv/nb-confusion-070.csv b/eval/csv/nb-confusion-070.csv
new file mode 100644
index 0000000..9a2f1ab
--- /dev/null
+++ b/eval/csv/nb-confusion-070.csv
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diff --git a/eval/csv/nb-confusion-071.csv b/eval/csv/nb-confusion-071.csv
new file mode 100644
index 0000000..9fdd045
--- /dev/null
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diff --git a/eval/csv/nb-confusion-072.csv b/eval/csv/nb-confusion-072.csv
new file mode 100644
index 0000000..f974bfd
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diff --git a/eval/csv/nb-confusion-073.csv b/eval/csv/nb-confusion-073.csv
new file mode 100644
index 0000000..5888477
--- /dev/null
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diff --git a/eval/csv/nb-confusion-074.csv b/eval/csv/nb-confusion-074.csv
new file mode 100644
index 0000000..3a40640
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diff --git a/eval/csv/nb-confusion-075.csv b/eval/csv/nb-confusion-075.csv
new file mode 100644
index 0000000..0900ddc
--- /dev/null
+++ b/eval/csv/nb-confusion-075.csv
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diff --git a/eval/csv/nb-confusion-076.csv b/eval/csv/nb-confusion-076.csv
new file mode 100644
index 0000000..68f26a0
--- /dev/null
+++ b/eval/csv/nb-confusion-076.csv
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diff --git a/eval/csv/nb-confusion-077.csv b/eval/csv/nb-confusion-077.csv
new file mode 100644
index 0000000..15d14ac
--- /dev/null
+++ b/eval/csv/nb-confusion-077.csv
@@ -0,0 +1,1541 @@
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diff --git a/eval/csv/nb-confusion-078.csv b/eval/csv/nb-confusion-078.csv
new file mode 100644
index 0000000..398def1
--- /dev/null
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diff --git a/eval/csv/nb-confusion-079.csv b/eval/csv/nb-confusion-079.csv
new file mode 100644
index 0000000..bc5d11f
--- /dev/null
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new file mode 100644
index 0000000..0959b78
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diff --git a/eval/csv/nb-confusion-081.csv b/eval/csv/nb-confusion-081.csv
new file mode 100644
index 0000000..b4bf84c
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diff --git a/eval/csv/nb-confusion-082.csv b/eval/csv/nb-confusion-082.csv
new file mode 100644
index 0000000..8824a32
--- /dev/null
+++ b/eval/csv/nb-confusion-082.csv
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diff --git a/eval/csv/nb-confusion-083.csv b/eval/csv/nb-confusion-083.csv
new file mode 100644
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diff --git a/eval/csv/nb-confusion-084.csv b/eval/csv/nb-confusion-084.csv
new file mode 100644
index 0000000..5d8027c
--- /dev/null
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diff --git a/eval/csv/nb-confusion-085.csv b/eval/csv/nb-confusion-085.csv
new file mode 100644
index 0000000..7813a42
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diff --git a/eval/csv/nb-confusion-086.csv b/eval/csv/nb-confusion-086.csv
new file mode 100644
index 0000000..3aba026
--- /dev/null
+++ b/eval/csv/nb-confusion-086.csv
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diff --git a/eval/csv/nb-confusion-087.csv b/eval/csv/nb-confusion-087.csv
new file mode 100644
index 0000000..a7c85af
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diff --git a/eval/csv/nb-confusion-088.csv b/eval/csv/nb-confusion-088.csv
new file mode 100644
index 0000000..41e11e8
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diff --git a/eval/csv/nb-confusion-089.csv b/eval/csv/nb-confusion-089.csv
new file mode 100644
index 0000000..d0d4bee
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diff --git a/eval/csv/nb-confusion-090.csv b/eval/csv/nb-confusion-090.csv
new file mode 100644
index 0000000..35c2a7a
--- /dev/null
+++ b/eval/csv/nb-confusion-090.csv
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diff --git a/eval/csv/nb-confusion-091.csv b/eval/csv/nb-confusion-091.csv
new file mode 100644
index 0000000..cc79094
--- /dev/null
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diff --git a/eval/csv/nb-confusion-092.csv b/eval/csv/nb-confusion-092.csv
new file mode 100644
index 0000000..e432551
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diff --git a/eval/csv/nb-confusion-093.csv b/eval/csv/nb-confusion-093.csv
new file mode 100644
index 0000000..410b6fb
--- /dev/null
+++ b/eval/csv/nb-confusion-093.csv
@@ -0,0 +1,1861 @@
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diff --git a/eval/csv/nb-confusion-094.csv b/eval/csv/nb-confusion-094.csv
new file mode 100644
index 0000000..27924ee
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diff --git a/eval/csv/nb-confusion-095.csv b/eval/csv/nb-confusion-095.csv
new file mode 100644
index 0000000..68f3e7c
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diff --git a/eval/csv/nb-confusion-096.csv b/eval/csv/nb-confusion-096.csv
new file mode 100644
index 0000000..e0dd181
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diff --git a/eval/csv/nb-confusion-097.csv b/eval/csv/nb-confusion-097.csv
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diff --git a/eval/csv/nb-confusion-098.csv b/eval/csv/nb-confusion-098.csv
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index 0000000..41d85c6
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diff --git a/eval/csv/nb-confusion-100.csv b/eval/csv/nb-confusion-100.csv
new file mode 100644
index 0000000..72f2713
--- /dev/null
+++ b/eval/csv/nb-confusion-100.csv
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diff --git a/eval/nb-confusion.gif b/eval/nb-confusion.gif
new file mode 100644
index 0000000..265d0d2
Binary files /dev/null and b/eval/nb-confusion.gif differ
diff --git a/eval/performance.png b/eval/performance.png
new file mode 100644
index 0000000..11210bc
Binary files /dev/null and b/eval/performance.png differ
diff --git a/eval/plot.py b/eval/plot.py
new file mode 100644
index 0000000..fd6d144
--- /dev/null
+++ b/eval/plot.py
@@ -0,0 +1,21 @@
+import matplotlib.pyplot as plt
+from csv import DictReader
+
+
+def data_from(filename):
+    with open(filename) as csvfile:
+        reader = DictReader(csvfile)
+        return [{k: float(v) for (k, v) in row.items()} for row in reader]
+
+
+if __name__ == '__main__':
+    data = data_from('scores.csv')
+    docs = [row['documents'] for row in data]
+    times = [(row['user_time'] + row['sys_time']) / row['total'] for row in data]
+    scores = [row['correct'] / row['total'] for row in data]
+    plt.plot(docs, times, 'ro', alpha=0.5, label='Run time (seconds) per document')
+    plt.plot(docs, scores, 'bo', alpha=0.5, label='Accuracy = correct / total')
+    plt.xlabel('Sampled documents per topic')
+    plt.grid(True)
+    plt.legend()
+    plt.show()
diff --git a/eval/score.py b/eval/score.py
new file mode 100644
index 0000000..166c6b4
--- /dev/null
+++ b/eval/score.py
@@ -0,0 +1,16 @@
+
+def score(filename):
+    with open(filename) as fh:
+        correct, total = 0, 0
+        fh.next()  # throw away header
+        for line in fh:
+            true, pred = map(int, line.split(','))
+            total += 1
+            if true == pred:
+                correct += 1
+    return (correct, total)
+
+
+if __name__ == '__main__':
+    for n in range(1, 101):
+        print(score('nb-confusion-%s.csv' % n))
diff --git a/eval/scores.csv b/eval/scores.csv
new file mode 100644
index 0000000..bc275c7
--- /dev/null
+++ b/eval/scores.csv
@@ -0,0 +1,101 @@
+documents,correct,total,real_time,user_time,sys_time
+1,1,20,8.17,7.63,0.53
+2,9,40,12.96,12.35,0.58
+3,19,60,18.86,18.17,0.66
+4,29,80,27.57,26.71,0.79
+5,35,100,34.77,33.85,0.86
+6,48,120,43.22,42.21,0.95
+7,53,140,51.92,50.76,1.10
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