Mothball the calibration effort.

Author: linas

README-Calibration.md

@@ -2,11 +2,18 @@
 Calibrating Unsupervised Language Learning
 ==========================================
 * Version of May 2021
+* Mothballed, late 2021
 
-Ongoing project, continuing activity.  See the
+Mothballed project, halted activity. This was a good idea, but it
+foundered on severeal practical and several theoretical issues.
+Cannot move foreward, until these are addressed.  See below, "lessons
+learned". for a summary of these issues.
+
+See also the
 [language learning wiki](http://wiki.opencog.org/w/Language_learning)
-for an alternate overview. See the diary at
-`learn-lang-diary/learn-lang-diary-part-two.lyx` for a progress log.
+for an alternate overview. See
+[Diary Part Two](learn-lang-diary/learn-lang-diary-part-two.pdf)
+for a log of the experimental efforts and results.
 
 Project Summary
 ---------------
@@ -144,6 +151,15 @@ and questions arose fairly quickly.
   adjustable parameters even "aligned" with the axes of human language
   complexity? How does one even judge this?
 
+* A serious, practical impediment is that there is no easy way to just
+  "eyeball" the results. With English, one can just look at the stuff
+  being generated, and its fairly clear when it's good and when its
+  garbage.  But with artificial langauges, it is impossible to glance at
+  it and get any idea of what's going on. In order to track what's
+  happpening, one would need to build a deep, complex and throuogh set
+  of tools, carefully measuring everything at every step, to see if the
+  process is working or has gone off the rails.
+
 Additional details, results, questions and head-scartching can be found
 in the [Language Learning Diary, Part
 Two](learn-lang-diary/learn-lang-diary-part-two.pdf).
@@ -154,7 +170,6 @@ appear to be increasingly basic and simple. It feels like I haven't
 even dented the surface of grammar--corpus correspondence. Onward
 through the fog!
 
-
 That's all for now!
 -------------------
 THE END.

README-Natural-v2.md

@@ -0,0 +1,4 @@
+
+Integrated Natural Language System
+==================================
+ AKA v2.

README.md

@@ -531,12 +531,17 @@ Processing Overview
 See the [README-Natural](README-Natural.md) file for a description of
 the "open-loop" (un-calibrated) processing system. It describes the
 processing steps in detail.  Getting good results requires tuning
-a variety of parameters, and so calibration needs to be run first.
+a variety of parameters, and so careful monitoring is required.
 
-See the [README-Calibration](README-Calibration.md) file for the "new"
-(next-gen) process of generating artificial languages with bounded
-statistical properties, learning them, and then measuring the accuracy
-of the learned language vs. the generated artificial language.
+See the [README-Natural-v2](README-Natural-v2.md) file for the new
+"integrated", "continuous learning" pipeline. Under development.
+
+The [README-Calibration](README-Calibration.md) proposed a technique
+for calibrating the learning pipeline, by generating artificial languages
+with known, bounded statistical properties, then learning them, and then
+measuring the accuracy of the learned language vs. the generated artificial
+language. This approach is currently abandoned. Its not a bad idea, just
+that naive conception won't work.
 
 Directories
 -----------