示例#1
0
def main(open_plot=True):
    # Make MDP distribution, agents.
    mdp_distr = make_mdp.make_mdp_distr(mdp_class="four_room")
    ql_agent = QLearnerAgent(actions=mdp_distr.get_actions())
    rand_agent = RandomAgent(actions=mdp_distr.get_actions())

    # Run experiment and make plot.
    run_agents_multi_task([ql_agent, rand_agent], mdp_distr, task_samples=50, episodes=1, steps=1500, reset_at_terminal=True, open_plot=open_plot)
示例#2
0
def main():
    import OptimalBeliefAgentClass

    # Setup multitask setting.
    # R ~ D : Puddle, Rock Sample
    # G ~ D : octo, four_room
    # T ~ D : grid

    mdp_class, is_goal_terminal, samples = parse_args()

    mdp_distr = make_mdp_distr(mdp_class=mdp_class,
                               is_goal_terminal=is_goal_terminal)
    mdp_distr.set_gamma(0.99)
    actions = mdp_distr.get_actions()

    # Compute average MDP.
    print "Making and solving avg MDP...",
    sys.stdout.flush()
    avg_mdp = compute_avg_mdp(mdp_distr)
    avg_mdp_vi = ValueIteration(avg_mdp,
                                delta=0.001,
                                max_iterations=1000,
                                sample_rate=5)
    iters, value = avg_mdp_vi.run_vi()
    print "done."  #, iters, value
    sys.stdout.flush()

    # Agents.
    print "Making agents...",
    sys.stdout.flush()
    mdp_distr_copy = copy.deepcopy(mdp_distr)
    opt_stoch_policy = compute_optimal_stoch_policy(mdp_distr_copy)
    opt_stoch_policy_agent = FixedPolicyAgent(opt_stoch_policy,
                                              name="$\pi_{prior}$")
    opt_belief_agent = OptimalBeliefAgentClass.OptimalBeliefAgent(
        mdp_distr, actions)
    vi_agent = FixedPolicyAgent(avg_mdp_vi.policy, name="$\pi_{avg}$")
    rand_agent = RandomAgent(actions, name="$\pi^u$")
    ql_agent = QLearningAgent(actions)
    print "done."

    agents = [vi_agent, opt_stoch_policy_agent, rand_agent, opt_belief_agent]

    # Run task.
    run_agents_multi_task(agents,
                          mdp_distr,
                          task_samples=samples,
                          episodes=1,
                          steps=100,
                          reset_at_terminal=False,
                          track_disc_reward=False,
                          cumulative_plot=True)
示例#3
0
def main():
    # Make MDP distribution, agents.
    mdp_distr = make_mdp_distr(mdp_class="grid")
    ql_agent = QLearnerAgent(actions=mdp_distr.get_actions())
    rand_agent = RandomAgent(actions=mdp_distr.get_actions())

    # Run experiment and make plot.
    run_agents_multi_task([ql_agent, rand_agent],
                          mdp_distr,
                          task_samples=30,
                          episodes=100,
                          steps=50,
                          reset_at_terminal=True,
                          include_optimal=True)
示例#4
0
def main():

    # ========================
    # === Make Environment ===
    # ========================
    mdp_class = "four_room"
    gamma = 1.0
    environment = make_mdp.make_mdp_distr(mdp_class=mdp_class, step_cost=0.01, grid_dim=15, gamma=gamma)
    actions = environment.get_actions()


    # ==========================
    # === Make SA, AA Stacks ===
    # ==========================
    sa_stack, aa_stack = hierarchy_helpers.make_hierarchy(environment, num_levels=2)

    # Debug.
    print "\n" + ("=" * 30) + "\n== Done making abstraction. ==\n" + ("=" * 30) + "\n"
    sa_stack.print_state_space_sizes()
    aa_stack.print_action_spaces_sizes()

    # ===================
    # === Make Agents ===
    # ===================
    # baseline_agent = QLearnerAgent(actions)
    agent_class = QLearnerAgent
    baseline_agent = agent_class(actions, gamma=gamma)
    rand_agent = RandomAgent(actions)
    # hierarch_r_max = HRMaxAgent(actions, sa_stack=sa_stack, aa_stack=aa_stack)
    l0_hierarch_agent = HierarchyAgent(agent_class, sa_stack=sa_stack, aa_stack=aa_stack, cur_level=0, name_ext="-$l_0$")
    l1_hierarch_agent = HierarchyAgent(agent_class, sa_stack=sa_stack, aa_stack=aa_stack, cur_level=1, name_ext="-$l_1$")
    # l2_hierarch_agent = HierarchyAgent(agent_class, sa_stack=sa_stack, aa_stack=aa_stack, cur_level=2, name_ext="-$l_2$")
    dynamic_hierarch_agent = DynamicHierarchyAgent(agent_class, sa_stack=sa_stack, aa_stack=aa_stack, cur_level=1, name_ext="-$d$")
    # dynamic_rmax_hierarch_agent = DynamicHierarchyAgent(RMaxAgent, sa_stack=sa_stack, aa_stack=aa_stack, cur_level=1, name_ext="-$d$")

    print "\n" + ("=" * 26)
    print "== Running experiments. =="
    print "=" * 26 + "\n"

    # ======================
    # === Run Experiment ===
    # ======================
    agents = [dynamic_hierarch_agent, baseline_agent]

    run_agents_multi_task(agents, environment, task_samples=10, steps=20000, episodes=1, reset_at_terminal=True)
def main():

    # ========================
    # === Make Environment ===
    # ========================
    mdp_class = "hrooms"
    environment = make_mdp.make_mdp_distr(mdp_class=mdp_class)
    actions = environment.get_actions()

    # ==========================
    # === Make SA, AA Stacks ===
    # ==========================
    # sa_stack, aa_stack = aa_stack_h.make_random_sa_diropt_aa_stack(environment, max_num_levels=3)
    sa_stack, aa_stack = hierarchy_helpers.make_hierarchy(environment, num_levels=3)

    # Debug.
    print("\n" + ("=" * 30))
    print("== Done making abstraction. ==")
    print("=" * 30 + "\n")
    sa_stack.print_state_space_sizes()
    print("Num Action Abstractions:", len(aa_stack.get_aa_list()))

    # ===================
    # === Make Agents ===
    # ===================
    baseline_agent = QLearningAgent(actions)
    rmax_agent = RMaxAgent(actions)
    rand_agent = RandomAgent(actions)
    l0_hierarch_agent = HierarchyAgent(QLearningAgent, sa_stack=sa_stack, aa_stack=aa_stack, cur_level=0, name_ext="-$l_0$")
    l1_hierarch_agent = HierarchyAgent(QLearningAgent, sa_stack=sa_stack, aa_stack=aa_stack, cur_level=1, name_ext="-$l_1$")
    # l2_hierarch_agent = HierarchyAgent(QLearningAgent, sa_stack=sa_stack, aa_stack=aa_stack, cur_level=2, name_ext="-$l_2$")
    dynamic_hierarch_agent = DynamicHierarchyAgent(QLearningAgent, sa_stack=sa_stack, aa_stack=aa_stack, cur_level=1, name_ext="-$d$")
    # dynamic_rmax_hierarch_agent = DynamicHierarchyAgent(RMaxAgent, sa_stack=sa_stack, aa_stack=aa_stack, cur_level=1, name_ext="-$d$")

    print("\n" + ("=" * 26))
    print("== Running experiments. ==")
    print("=" * 26 + "\n")

    # ======================
    # === Run Experiment ===
    # ======================
    agents = [l1_hierarch_agent, dynamic_hierarch_agent, baseline_agent]
    run_agents_multi_task(agents, environment, task_samples=10, steps=1500, episodes=1, reset_at_terminal=True)
def main(open_plot=True):
    # Setup MDP, Agents.
    mdp_distr = make_mdp.make_mdp_distr(mdp_class="four_room")
    ql_agent = QLearnerAgent(actions=mdp_distr.get_actions())
    rand_agent = RandomAgent(actions=mdp_distr.get_actions())

    # Make goal-based option agent.
    goal_based_options = aa_helpers.make_goal_based_options(mdp_distr)
    goal_based_aa = ActionAbstraction(prim_actions=mdp_distr.get_actions(),
                                      options=goal_based_options)
    option_agent = AbstractionWrapper(QLearnerAgent,
                                      actions=mdp_distr.get_actions(),
                                      action_abstr=goal_based_aa)

    # Run experiment and make plot.
    run_agents_multi_task([ql_agent, rand_agent, option_agent],
                          mdp_distr,
                          task_samples=10,
                          episodes=100,
                          steps=150,
                          open_plot=open_plot)
def main(eps=0.1, open_plot=True):

    mdp_class, is_goal_terminal, samples, alg = parse_args()

    # Setup multitask setting.
    mdp_distr = make_mdp.make_mdp_distr(mdp_class=mdp_class)
    actions = mdp_distr.get_actions()

    # Compute average MDP.
    print "Making and solving avg MDP...",
    sys.stdout.flush()
    avg_mdp = compute_avg_mdp(mdp_distr)
    avg_mdp_vi = ValueIteration(avg_mdp,
                                delta=0.001,
                                max_iterations=1000,
                                sample_rate=5)
    iters, value = avg_mdp_vi.run_vi()

    ### Yuu

    transfer_fixed_agent = FixedPolicyAgent(avg_mdp_vi.policy,
                                            name="transferFixed")
    rand_agent = RandomAgent(actions, name="$\pi^u$")

    opt_q_func = compute_optimistic_q_function(mdp_distr)
    avg_q_func = avg_mdp_vi.get_q_function()

    if alg == "q":
        pure_ql_agent = QLearnerAgent(actions, epsilon=eps, name="Q-0")
        qmax = 1.0 * (1 - 0.99)
        # qmax = 1.0
        pure_ql_agent_opt = QLearnerAgent(actions,
                                          epsilon=eps,
                                          default_q=qmax,
                                          name="Q-vmax")
        transfer_ql_agent_optq = QLearnerAgent(actions,
                                               epsilon=eps,
                                               name="Q-trans-max")
        transfer_ql_agent_optq.set_init_q_function(opt_q_func)
        transfer_ql_agent_avgq = QLearnerAgent(actions,
                                               epsilon=eps,
                                               name="Q-trans-avg")
        transfer_ql_agent_avgq.set_init_q_function(avg_q_func)

        agents = [
            pure_ql_agent, pure_ql_agent_opt, transfer_ql_agent_optq,
            transfer_ql_agent_avgq
        ]
    elif alg == "rmax":
        pure_rmax_agent = RMaxAgent(actions, name="RMAX-vmax")
        updating_trans_rmax_agent = UpdatingRMaxAgent(actions,
                                                      name="RMAX-updating_max")
        trans_rmax_agent = RMaxAgent(actions, name="RMAX-trans_max")
        trans_rmax_agent.set_init_q_function(opt_q_func)
        agents = [pure_rmax_agent, updating_trans_rmax_agent, trans_rmax_agent]
    elif alg == "delayed-q":
        pure_delayed_ql_agent = DelayedQLearnerAgent(actions,
                                                     opt_q_func,
                                                     name="DelayedQ-vmax")
        pure_delayed_ql_agent.set_vmax()
        updating_delayed_ql_agent = UpdatingDelayedQLearnerAgent(
            actions, name="DelayedQ-updating_max")
        trans_delayed_ql_agent = DelayedQLearnerAgent(
            actions, opt_q_func, name="DelayedQ-trans-max")
        agents = [
            pure_delayed_ql_agent, updating_delayed_ql_agent,
            trans_delayed_ql_agent
        ]
    else:
        print "Unknown type of agents:", alg
        print "(q, rmax, delayed-q)"
        assert (False)

    # Run task.
    # TODO: Function for Learning on each MDP
    run_agents_multi_task(agents,
                          mdp_distr,
                          task_samples=samples,
                          episodes=1,
                          steps=100,
                          reset_at_terminal=is_goal_terminal,
                          is_rec_disc_reward=False,
                          cumulative_plot=True,
                          open_plot=open_plot)
def main():

    # Setup environment.
    mdp_class, agent_type, samples = parse_args()
    is_goal_terminal = False
    mdp_distr = make_mdp_distr(mdp_class=mdp_class,
                               is_goal_terminal=is_goal_terminal)
    mdp_distr.set_gamma(0.99)
    actions = mdp_distr.get_actions()

    # Compute priors.

    # Stochastic mixture.
    mdp_distr_copy = copy.deepcopy(mdp_distr)
    opt_stoch_policy = ape.compute_optimal_stoch_policy(mdp_distr_copy)

    # Avg MDP
    avg_mdp = ape.compute_avg_mdp(mdp_distr)
    avg_mdp_vi = ValueIteration(avg_mdp,
                                delta=0.001,
                                max_iterations=1000,
                                sample_rate=5)
    iters, value = avg_mdp_vi.run_vi()

    # Make agents.

    # Q Learning
    ql_agent = QLearnerAgent(actions)
    shaped_ql_agent_prior = ShapedQAgent(shaping_policy=opt_stoch_policy,
                                         actions=actions,
                                         name="Prior-QLearning")
    shaped_ql_agent_avgmdp = ShapedQAgent(shaping_policy=avg_mdp_vi.policy,
                                          actions=actions,
                                          name="AvgMDP-QLearning")

    # RMax
    rmax_agent = RMaxAgent(actions)
    shaped_rmax_agent_prior = ShapedRMaxAgent(
        shaping_policy=opt_stoch_policy,
        state_space=avg_mdp_vi.get_states(),
        actions=actions,
        name="Prior-RMax")
    shaped_rmax_agent_avgmdp = ShapedRMaxAgent(
        shaping_policy=avg_mdp_vi.policy,
        state_space=avg_mdp_vi.get_states(),
        actions=actions,
        name="AvgMDP-RMax")
    prune_rmax_agent = PruneRMaxAgent(mdp_distr=mdp_distr)

    if agent_type == "rmax":
        agents = [
            rmax_agent, shaped_rmax_agent_prior, shaped_rmax_agent_avgmdp,
            prune_rmax_agent
        ]
    else:
        agents = [ql_agent, shaped_ql_agent_prior, shaped_ql_agent_avgmdp]

    # Run task.
    run_agents_multi_task(agents,
                          mdp_distr,
                          task_samples=samples,
                          episodes=1,
                          steps=200,
                          is_rec_disc_reward=False,
                          verbose=True)