Three experiments compared the performance of domesticated hooded rats and nondomesticated black rats under signaled and unsignaled free-operant leverpress avoidance. There was no difference between groups in asymptotic shock rates under unsignaled avoidance; however, the black rats avoided much more successfully when the signal was present, while the hooded rats showed little or no improvement...

We present an audio-visual attention system for speech based interaction with a humanoid robot where a tutor can teach visual properties/locations (e.g ”left”) and corresponding, arbitrary speech labels. The acoustic signal is segmented via the attention system and speech labels are learned from a few repetitions of the label by the tutor. The attention system integrates bottom-up stimulus driv...

System design is typically done in VHDL to facilitate top-down design and to enable the mapping of a design to many implementations. Reusabil-ity of subsystems to date has largely been performed with libraries of synthesizable VHDL subsystems. This paper presents recommended extensions to VHDL to allow the VHDL designer to interact with nonsynthesizable subsystems while still designing in VHDL....

Driver distraction is an important issue in developing new generation of telematic systems. Our research is focused on development of novel machine vision systems, which can provide better understanding of the state of the driver and driving conditions. In this paper we discuss in detail on the development of a system which allows simultaneous capture of the driver's head pose and driving view....

The study of speech perception over the past 60 years has tried to determine the human processes that underlie the rapid understanding of fluent speech. A first step was to determine the units of speech that could be experimentally manipulated. Years of examining the acoustic properties associated with phonemes led to theories such as the Motor Theory which postulate larger units that integrate...

All Statistical Parametric Speech Synthesizers consist of a linear pipeline of components. This view means that the synthesizer consists of a top-down structure where data fed into the synthesizer goes to front-end, then to the prediction algorithm, then to the waveform generation, and so on until the speech is finally constructed. Each component in this pipeline naively receives a stream of nu...

Mongolian gerbils were trained under unsignaled free-operant avoidance until performance stabilized. They showed slight warm-up effects, receiving approximately 40% of the total session shocks in the initial one-third of the session. Leverpressing was then studied during l-h extinction periods as a function of the duration of an avoidance period which immediately preceded it. Responding during ...

In the eld of program synthesis inductive existence proofs are used to compute algorithmic deenitions for the skolem functions under consideration. While in general the recursion orderings of the given function deenitions form the induction ordering this approach often fail for existence proofs. In many cases a completely new induction ordering has to be invented to prove an existence formula. ...

A top-down hierarchical system based on deep neural networks is investigated for the modeling of prosody in speech synthesis. Suprasegmental features are processed separately from segmental features and a compact distributed representation of highlevel units is learned at syllable-level. The suprasegmental representation is then integrated into a frame-level network. Objective measures show tha...

In this work we present and study bottom-up, or multiplicative, clock synthesis and compare it to a proposed and alternative top-down, or divisive, methodology. The focus of the work is on the short-term stability for each approach and the implications associated with frequency multiplication and division. The analysis and simulation demonstrate that for a common application, a top-down clock s...