From e26434979adc33bd949566ba7bf02dff64e80a3e Mon Sep 17 00:00:00 2001
From: Chris Dyer <cdyer@cab.ark.cs.cmu.edu>
Date: Tue, 2 Oct 2012 00:19:43 -0400
Subject: cdec cleanup, remove bayesian stuff, parsing stuff

---
 gi/pf/tpf.cc | 99 ------------------------------------------------------------
 1 file changed, 99 deletions(-)
 delete mode 100644 gi/pf/tpf.cc

(limited to 'gi/pf/tpf.cc')

diff --git a/gi/pf/tpf.cc b/gi/pf/tpf.cc
deleted file mode 100644
index 7348d21c..00000000
--- a/gi/pf/tpf.cc
+++ /dev/null
@@ -1,99 +0,0 @@
-#include <iostream>
-#include <tr1/memory>
-#include <queue>
-
-#include "sampler.h"
-
-using namespace std;
-using namespace tr1;
-
-shared_ptr<MT19937> prng;
-
-struct Particle {
-  Particle() : weight(prob_t::One()) {}
-  vector<int> states;
-  prob_t weight;
-  prob_t gamma_last;
-};
-
-ostream& operator<<(ostream& os, const Particle& p) {
-  os << "[";
-  for (int i = 0; i < p.states.size(); ++i) os << p.states[i] << ' ';
-  os << "| w=" << log(p.weight) << ']';
-  return os;
-}
-
-void Rejuvenate(vector<Particle>& pps) {
-  SampleSet<prob_t> ss;
-  vector<Particle> nps(pps.size());
-  for (int i = 0; i < pps.size(); ++i) {
-//    cerr << pps[i] << endl;
-    ss.add(pps[i].weight);
-  }
-//  cerr << "REJUVINATING...\n";
-  for (int i = 0; i < pps.size(); ++i) {
-    nps[i] = pps[prng->SelectSample(ss)];
-    nps[i].weight = prob_t(1.0 / pps.size());
-//    cerr << nps[i] << endl;
-  }
-  nps.swap(pps);
-//  exit(1);
-}
-
-int main(int argc, char** argv) {
-  const unsigned particles = 100;
-  prng.reset(new MT19937);
-  MT19937& rng = *prng;
-
-  // q(a) = 0.8
-  // q(b) = 0.8
-  // q(c) = 0.4
-  SampleSet<double> ssq;
-  ssq.add(0.4);
-  ssq.add(0.6);
-  ssq.add(0);
-  double qz = 1;
-
-  // p(a) = 0.2
-  // p(b) = 0.8
-  vector<double> p(3);
-  p[0] = 0.2;
-  p[1] = 0.8;
-  p[2] = 0;
-
-  vector<int> counts(3);
-  int tot = 0;
-
-  vector<Particle> pps(particles);
-  SampleSet<prob_t> ppss;
-  int LEN = 12;
-  int PP = 1;
-  while (pps[0].states.size() < LEN) {
-    for (int pi = 0; pi < particles; ++pi) {
-      Particle& prt = pps[pi];
-
-      bool redo = true;
-      const Particle savedp = prt;
-      while (redo) {
-        redo = false;
-        for (int i = 0; i < PP; ++i) {
-          int s = rng.SelectSample(ssq);
-          double gamma_last = p[s];
-          if (!gamma_last) { redo = true; break; }
-          double q = ssq[s] / qz;
-          prt.states.push_back(s);
-          prt.weight *= prob_t(gamma_last / q);
-        }
-        if (redo) { prt = savedp; continue; }
-      }
-    }
-    Rejuvenate(pps);
-  }
-  ppss.clear();
-  for (int i = 0; i < particles; ++i) { ppss.add(pps[i].weight); }
-  int sp = rng.SelectSample(ppss);
-  cerr << pps[sp] << endl;
-
-  return 0;
-}
-
-- 
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