Ross indexed the following pages under the keyword: "Trial and error".

Field (of substitution) Memory as break Trial and error optimal method 0895 0896

Transformation random transformation Summary: Fully developed form of the 'mechanical brain'; design for a chess-playing 'machine'.4563 Organisation frequency of trials Trial and error internal between trials Natural Selection [17]: Mutation rate must not be too high, 3530. Natural Selection [20]: Developing a super-chess playing system, 3530. 3529 3530

Adaptation speeding up adaptation Speed (of adaptation) of learning Adaptation speeding up adaptation Model speed of Play speed of Speed (of adaptation) of learning Trial and error speed of 4250 4251

Summary: Note on Darwinism. Summary: 'Experiment' = 'competition'. 4384 Competition equals trials Design for a Brain British Medical Journal review Experiment = competition Trial and error equals competition Society [49]: Trial = competition = experiment, 4380. Personal notes [20]: Reviews of "Design": 4258 Observer, 4309 Citizen, 4380 British Medical Journal, 4423 Journal of Consulting Psychology, 4423 McCulloch, 4446. Hibbert Journal, 4595 Galaxy, 4595 Scientific American, 4643 Occupational Psychology. 4380 4381

Trial and error sub-trials The Multistable System [79]: Trials within trials are an important advanced method 4546. Summary: Trials within trials, or the admission of variation into sub-units of an ultrastable system. Society [53]: Trials may [be] conducted as details within larger trial only if functionally disconnected while they are going on. 4547. 4546 4547

Adaptation strategy of Estimation and adaptation Maximal likelihood and adaptation Trial and error optimal method 4650 4651

Trial and error number of trials necessary Summary: Regulation in the homeostat's second order feedback. 4695, 4701, 4709 4686 4687

Question variety in Selection and variety Trial and error variety in Variety in set v. in element 4692 4693

Summary: In information, the point of view of the element is very different from that of the set. Searching variety in Homeostat its discontinuous 2nd order process can be changed through intermediates to that of thermostat Markov process / chain can be modified to give a field Regulation discontinuous and continuous are related Trial and error relation to continuous stability 4694 4695

Summary: Many concepts include that of "reduction". 4880, 4950, 4963 Design and information Machine as reduction Prediction as reduction Problems solving problems Property as information Reduction many forms Relation as information Code military Coding theory of Strategy of trial and error Trial and error optimal method 4796 4797

Summary: An input can be saturated i.e. has a capacity as a channel. Theory of nature of Trial and error determine of trial by theory 4848 4849

Summary: Trials are good, for they bring information. 4945, 4948, 4965, 4963 Information by trials Trial and error gives information Behaviour all reducible to behaviour Thing as way of behaving 4942 4943

Reducibility value of Trial and error nature of Epistemology [44]: The strategy of putting questions 4948. 4948 4949

Summary: Effects of channel capacity in joining two systems, only one of which is observed. Epistemology [49]: As the coupling between B and A is made richer, either by increasing channel capacity or by adding immediate effects, so will what is in B affect x the sooner. 5026. DIAGRAM Entropy during search Hunt and stick information flow Information during hunt and stick Searching information flow Selection informatiom flow Trial and error gives information 5026 5027

Transformation moving sequentially DAMS Mark II (Dispersive and Multistable System) [4]: Effect of a transformation being carried out sequentially, (so that e.g. x'2 depends on x'1, rather than x1) 5338. Summary: Effect of computing a transformation sequentially. Training of full efficiency Trial and error of full efficiency 5338 5339

Summary: From essential variables to Grand Outcome, via trials. 5573, 5642 Essential variables and trials Immediate effect equals "cause" Trial and error and essential variables Cause and feedback Discrimination requires information Feedback discriminative needs information Immediate effect and feedback Requisite Variety, Law of in discriminative feedback Supplementation in discriminatative feedback 5538 5539

Dispersion random dispersion useless Reducibility finding, while adapting Trial and error must not change dispersion Summary: Random dispersion will not achieve a useful degree of reducibility. 5619 5606 5607

Summary: One unit for adaptation (in Multistable System) may comprise many portions (arcs) in the cortex. 5653, 5746 The Multistable System [125]: One unit for adaptation (one "arc") may comprise many portions of both cortex and environment. 5634.3. Summary: Optimal duration of trial; optimal time back to make disruptive feedback work. 5642 Essential variables maximal speed Trial and error maximal speed 5634 5635

Summary: Continuity as a restraint. Constraint continuity as Continuity as constraint Trial and error duration of 5636 5637

Genius Campbell on genius Induction (gaining knowledge by induction) by genius Trial and error by genius Summary: Campbell won't allow "genius". 6289 Ignorance field of ignorance 6258 6259

Chess two-way search Efficiency in searching Goal two-way search Trial and error efficiency of Summary: In a process of search, knowing the goal, and especially of intermediate goals, can cut the time fabulously. Constraint in environment's transitions 6336 6337