From 2e983112813c41b40800aee1ce9d0a083763f224 Mon Sep 17 00:00:00 2001
From: Patrick Simianer <p@simianer.de>
Date: Wed, 25 Mar 2015 09:32:22 +0100
Subject: rewrote perceptron

---
 perceptron-new-test.rb | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100755 perceptron-new-test.rb

(limited to 'perceptron-new-test.rb')

diff --git a/perceptron-new-test.rb b/perceptron-new-test.rb
new file mode 100755
index 0000000..6566f68
--- /dev/null
+++ b/perceptron-new-test.rb
@@ -0,0 +1,30 @@
+#!/usr/bin/env ruby
+
+require 'zipf'
+
+STDERR.write "reading test data...\n"
+test = []
+test_f = ReadFile.new ARGV[0]
+n = 0
+while i = test_f.gets
+  test << SparseVector.from_kv(i.strip, '=', ' ')
+  n += 1
+  STDERR.write "#{n}\n" if n%1000==0
+end
+STDERR.write " test set size = #{test.size}\n"
+
+errors = 0
+w = SparseVector.from_kv ReadFile.new(ARGV[1]).read, "\t", "\n"
+
+test.each { |x|
+  m = w.dot(x)
+  if m <= 0.0
+    errors += 1
+    puts -1
+  else
+    puts 1
+  end
+}
+
+STDERR.write "accuracy = #{(test.size-errors)/test.size.to_f}\n"
+
-- 
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