00100	This number is to be used for the new 4-output tables which are to
00200	be gated during learning in accordance with my new ideas.
00300	The general idea is to have about 16 large tables, ' am settling on
00400	256 cells at the present but every thing will be done to make it easy
00500	to change this number later if desired. There will be actually three
00600	sets of tables, one set used during recognition only, a second set
00700	used during learning only and a reserve set which is used to consolidate
00800	new learning with old at the end of each learning session or part of
00900	session and the recognition set updated
01000	
01100	There will then be three distinct phases,- a learning phase, an update phase
01200	and a recognition phase. Each table will have each word divided into
01300	4 fields corresponding to the 4 outputs. In the learning tables these 4
01400	fields will be used to accumulate counts so that one can learn only
01500	until one counter has reached 511. Actually the counters may
01600	start with 31 rather than 0 so that the effective capacity is reduced
01700	to 480. This comes about from the fact that the reserve tables are used
01800	to count in units of 32 and after each update the overflow mod 32 is
01900	restored to the learning tables. The total capacity of the reserve and
02000	learn tables to accumulate counts is thus 2↑14, allowing for
02100	the 4 bit overlap. The recognition tables
02200	also have 9 bits in each field and so are used to contain probabilities
02300	in parts per 512.
02400	
02500	Each table (except for the first one) has a parent table and a parent
02600	output field in this table. During recognition, the probability from 
02700	this parent field is used to multiply the probabilities read from
02800	the line specified by the input and these probabilities are reported as
02900	the outputs from the table in question. In this way the final probabilities
03000	are kept comparable and reflect the true probabilities of the output in
03100	question.
03200	
03300	If we limit the size to 256 as proposed, we could then allow for 4 inputs
03400	of 2 bits each, for 3 inputs of 3,3 and 2 bits, or 2 inputs of 4 bits each.
03500	It would be desirable to allow one to specify the choice simply by the
03600	number of input names that one typed in to the MAKE program.
03700	
03800	As a further simplification to the MAKE program we could use the same names
03900	for table outputs as are used for phonettes anf features and arrange for
04000	the creation of the necessary linkages when one typed one name as that of
04100	the parent.
04200	
04300	To simplify the use of different subsets of the tables, the header information
04400	would be kept separate from the tables proper. This information would then
04500	be read in but once and it would not have to be written out at the end
04600	of a run.
04700	
04800	The handling of input tables if they to be used would be done by a separate
04900	MAKE program.