The following diagram shows the four iterations of Learning Real Time A* (LRTA*) on a one-dimensional state space. Each state is labeled with H(s), the current cost estimate to reach a goal, and every link has an action cost of 1. The red state marks the location of the agent, and the updated cost estimates at each iteration have a double circle. What will be the agent's move in the next iteration?

Which one of the following diagrams describes the searching with no observation in nondeterministic (slippery) environments?

The following diagram shows part of the search graph for the slippery vacuum world. What kind of problem is this? (Choose the best answer.)

What kind of agent is described by the following pseudo-code?

What search algorithm is described by the following pseudo-code? (This search algorithm handles repeated states.)

Which is NOT correct about the vacuum world?

The following diagram depicts a vacuum-cleaner world that we studied in class. 

Which mapping between a percept sequence and action does NOT show a logical action?

What kind of agent is described by the following pseudo-code?

What is the following diagram about?

What kind of agent is described by the following pseudo-code?