In this article, we propose and analyze a class of actor-critic algorithms. These are two-time-scale algorithms in which the critic uses temporal difference learning with a linearly parameterized approximation architecture, and the actor is updated in an approximate gradient direction, based on information provided by the critic. We show that the features for the critic should ideally span a su...

Intelligent industrial and mobile robots may be considered proven technology in structured environments. Teach programming and supervised learning methods permit solutions to a variety of applications. However, we believe that to extend the operation of these machines to more unstructured environments requires a new learning method. Both unsupervised learning and reinforcement learning are pote...

This paper proposes a new actor-critic-style algorithm called Dual Actor-Critic or Dual-AC. It is derived in a principled way from the Lagrangian dual form of the Bellman optimality equation, which can be viewed as a two-player game between the actor and a critic-like function, which is named as dual critic. Compared to its actor-critic relatives, Dual-AC has the desired property that the actor...

sociology of literature has relation with sociology on the one hand and and the literature on the other hand. delving into the  relation between literature and society forms basis of socialogical criticism of the literature. this approach focuses mainly on the structure and content of literary work and its relationship with society and interactions of literature, society and reflection of socia...

In earlier papers a critic for automatically generalizing conjectures in the context of failed inductive proofs was presented. The critic exploits the partial success of the search control heuristic known as rippling. Through empirical testing a natural generalization and extension of the basic critic emerged. Here we describe our extended generalization critic together with some promising expe...

We prove the convergence of an actor/critic algorithm that is equivalent to Q-learning by construction. Its equivalence is achieved by encoding Q-values within the policy and value function of the actor and critic. The resultant actor/critic algorithm is novel in two ways: it updates the critic only when the most probable action is executed from any given state, and it rewards the actor using c...

Thematic criticizm shares a new concept inherited from romanticism: literary work is, first of all, the revelation invisible and hidden connections, inspiration. The wtiter’s attitude toward language makes text place invention rather than self-expression. criticism is internal. For those who know how to read, writer’s relationship world, other people, himself entirely contained in writer;s text...

Actor-critic methods solve reinforcement learning problems by updating a parameterized policy known as an actor in a direction that increases an estimate of the expected return known as a critic. However, existing actor-critic methods only use values or gradients of the critic to update the policy parameter. In this paper, we propose a novel actor-critic method called the guide actor-critic (GA...

al-aqad was a contemporary prominent critic and writer of egypt who by authoring the book about ibn al rumi life and his poems‚ tried to present thoughtful view points, about this great poet. he believed that ibn al-rumi was a great poet of abbasi era and was a poet laureate of his contemporary poets but unlike his literary position‚ he was not supported by the kings. it is worth noting that be...