Symbol Emergence in Robotics: A Survey

College of Information Science and Engineering, Ritsumeikan University, 1-1-1 Noji Higashi, Kusatsu, Shiga 525-8577, Japan Department of Mechanical Engineering and Intelligent Systems, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu-shi, Tokyo 182-8585, Japan Faculty of Computer Science and Systems Engineering, Okayama Prefectural University, 111 Kubogi, Soja-shi, Okayama 719-1197, Japan Department of Intermedia Art and Science, School of Fundamental Science and Engineering, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan Artificial Intelligence Research Center, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 1, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8560, Japan