From 2aae39f8c4b2548210959a4420504470ecb9abd7 Mon Sep 17 00:00:00 2001
From: edouardklein <edouardk.lei.n@gmail.com>
Date: Sat, 16 May 2015 22:02:54 +0200
Subject: Save and Load the solver as well.

Somebody noticed a spike in perplexity after loading the model. This spike disappears if we save and load the solver as well.
---
 character_demo.html | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

(limited to 'character_demo.html')

diff --git a/character_demo.html b/character_demo.html
index 143dc00..80a61a0 100644
--- a/character_demo.html
+++ b/character_demo.html
@@ -217,6 +217,17 @@ var saveModel = function() {
     }
   }
   out['model'] = model_out;
+  var solver_out = {};
+  solver_out['decay_rate'] = solver.decay_rate;
+  solver_out['smooth_eps'] = solver.smooth_eps;
+  step_cache_out = {};
+  for(var k in solver.step_cache) {
+    if(solver.step_cache.hasOwnProperty(k)) {
+      step_cache_out[k] = solver.step_cache[k].toJSON();
+    }
+  }
+  solver_out['step_cache'] = step_cache_out;
+  out['solver'] = solver_out;
   out['letterToIndex'] = letterToIndex;
   out['indexToLetter'] = indexToLetter;
   out['vocab'] = vocab;
@@ -235,6 +246,17 @@ var loadModel = function(j) {
       model[k].fromJSON(matjson);
     }
   }
+  solver = new R.Solver(); // have to reinit the solver since model changed
+  solver.decay_rate = j.solver.decay_rate;
+  solver.smooth_eps = j.solver.smooth_eps;
+  solver.step_cache = {};
+  for(var k in j.solver.step_cache){
+      if(j.solver.step_cache.hasOwnProperty(k)){
+          var matjson = j.solver.step_cache[k];
+          solver.step_cache[k] = new R.Mat(1,1);
+          solver.step_cache[k].fromJSON(matjson);
+      }
+  }
   letterToIndex = j['letterToIndex'];
   indexToLetter = j['indexToLetter'];
   vocab = j['vocab'];
@@ -242,7 +264,6 @@ var loadModel = function(j) {
   // reinit these
   ppl_list = [];
   tick_iter = 0;
-  solver = new R.Solver(); // have to reinit the solver since model changed
 }
 
 var forwardIndex = function(G, model, ix, prev) {
-- 
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