We carried out a one-year project to build a portable speech-to-speech translation system in a new language that could run on a small portable computer. Croatian was chosen as the target language. The resulting system was tested with real users on a trip to Croatia in the spring of 2001. We describe its basic components, the methods we used to build them,… (More)
Macroeconomic forecasting is a very difficult task due to the lack of an accurate, convincing model of the economy. The most accurate models for economic forecasting, " black box " time series models, assume little about the structure of the economy. Constructing reliable time series models is challenging due to short data series, high noise levels,… (More)
Feedforward networks composed of units which compute a sigmoidal function of a weighted sum of their inputs have been much investigated. We tested the approximation and estimation capabilities of networks using functions more complex than sigmoids. Three classes of functions were tested: polynomials, rational functions, and flexible Fourier series. Unlike… (More)
The Tongues portable, rapid-development, speech-to-speech machine translation system was developed specifically to allow a realistic field-test of a deployable prototype. In this paper we will describe the system, its field-testing using regular US Army officers and naive Croatians, and the evaluation of these tests. The evaluation includes analysis of… (More)
Before 1900, the Missouri–Mississippi River system transported an estimated 400 million metric tons per year of sediment from the interior of the United States to coastal Louisiana. During the last two decades (1987–2006), this transport has averaged 145 million metric tons per year. The cause for this substantial decrease in sediment has been attributed to… (More)
This paper describes building of the basic components, particularly speech recognition and synthesis, of a speech-to-speech translation system. This work is described within the framework of the " Tongues: small footprint speech-to-speech translation device " developed at CMU and Lock-heed Martin for use by US Army Chaplains.
The response of a glass batch to heating is determined by the batch makeup and in turn determines the rate of melting. Batches formulated for a high-alumina nuclear waste to be vitrified in an all-electric melter were heated at a constant temperature-increase rate to determine changes in melting behavior in response to the selection of batch chemicals and… (More)
The recent proof by Bigelow and Krammer that the braid groups are linear opens the possibility of applications to the study of knots and links. It was proved by the first author and Menasco that any closed braid representative of the unknot can be systematically simplified to a round planar circle by a finite sequence of exchange moves and reducing moves.… (More)