* Update agents.py

* Update test_agents.py

* Add bidirectional search + update h function

* add bidirectional search test

* Update search.py

* Update test_search.py

* DataFile Update

* Update learning.py

* Update search.py

* Update test_learning.py

* Update test_text.py

* Add files via upload

* Update text.ipynb

* Update search-4e.ipynb

* Create CONTRIBUTING.md

* Update games.py

* Create test_games.py

* Create games.ipynb

* Added test for fol_fc_ask()

* Optimization of fol_fc_ask()

* Faster fol_fc_ask()

* Removed subst for rules in KB

* Delete test_grid.py

* Delete grid.ipynb

* Delete grid.py

* Move grid functions to utils

* Move grid tests to utils

* Update agents.py

* Update mdp.py

* Update search.py

* Update search.py

* Update test_search.py

* Create function to initialize random weights

* Add sigmoid derivative function

* Update csp.py

* Add test

* Update learning.ipynb

* Update test_learning.py

* Resolve conflicts

* Update test_mdp.py

* Update mdp.py

* Fix flake8 warnings

* Remove unnecessary #noqa

* Fix doctest

* Modified relevant_pages()

* Additional tests for relevant_pages()

* Add Gaussian Function

* Added Tests

Add tests for Continuous Naive Bayes + Means/Standard Deviation

* Update learning.py

* Commenting Fix

* Add test for gaussian

* test for every class

* Update test_learning.py

* Round float results to make sure test passes

* Added test for FIFOQueue

* Updated FIFOQueue

* Updated FIFOQueue

* FIFOQueue using deque

* fixed flake8 warnings

* replace assert with if test in add_thing

* removed inline assert

* added unit test to check edit

* improve user interface

* Add test for determineInlinks()

* Add test for HITS()

* fixed premature updation

* Refactor code to match pseudocode

* Added test_rl.py

* Update test_rl.py

Accidentally left "agent.U == 0" in. It was there for some testing of mine.

* Update learning.py

* Update test_learning.py

* Update test_learning.py

* define HLA, Problem and implement 11.1

* add demonstration of job_shop_problem

* implementing 11.5

* adding test for refinement

* Update search.py

* Update test_search.py

* minor edits and notes

* removed fuzzywuzzy

* Add 8-Queens Test

* Optimization without veering from pseudocode

* Variable renaming

* Update search.py

* Optimization

* Update test_search.py

* Fairer reproduction

* Add grade_learner

* Update test_learning.py

* Fixed normalize()

* Update test for normalize()

added test for count() and mode()

* Update test_learning.py

* Update learning.py

* set max_score to -1 (for now)

* Update learning.py

* Make find_max more pythonic