ing the Tower of Hanoi Craig A. Knoblock School of Computer Science Carnegie Mellon University Pittsburgh, PA 15213 [email protected] Abstract This paper describes an automated approach to generating abstractions for the Tower of Hanoi and analyzes the use of these abstractions for problem solving. The analysis shows that the learned abstractions produce an exponential reduction in the size of the...

Magnetic reconnection is a complex mechanism that converts magnetic energy into particle kinetic and plasma thermal in space astrophysical plasmas. In addition, turbulence appear to be intimately related We analyze the magnetic-field at exhaust of four events detected solar wind using Jensen-Shannon complexity-entropy index. The interplanetary field decomposed LMN coordinates hybrid minimum var...

During spatial navigation, the head orientation of an animal is encoded internally by neural persistent activity in the head-direction (HD) system. In computational models, such a bell-shaped "hill of activity" is commonly assumed to be generated by recurrent excitation in a continuous attractor network. Recent experimental evidence, however, indicates that HD signal in rodents originates in a ...

OBJECTIVE To determine clinically related characteristics in patients with pure lower motor neuron (LMN) syndromes, not fulfilling accepted diagnostic criteria, who were likely to respond to intravenous immunoglobulin (IVIg) treatment. METHODS Demographic, clinical, laboratory and neurophysiological characteristics were prospectively collected from patients with undifferentiated isolated LMN ...

Motor neuron disease (MND) is a progressive neurodegenerative condition, affecting pyramidal neurons of the corticospinal tract (upper motor neurons (UMN)), brainstem motor nerve nuclei and spinal cord anterior horn cells (lower motor neurons (LMN)). Clinical presentation varies, according to the site(s) affected and the relative balance between UMN and LMN signs (see Table 1). The term ‘amyotr...