The ability to monitor cognitive load level in real time is extremely useful for preventing fatal operating errors or improving the efficiency of task execution. In top of the success of our previously proposed speech based cognitive load monitoring system, we explored alternative classification techniques in this paper, including simple linear kernel Support Vector Machine (SVM), hybrid SVM-GM...

Gaussian mixture modeling with universal background model (GMM-UBM) is a widely used method for speaker identification, where the GMM model is used to characterize a specific speaker’s voice. The estimation of model parameters is generally performed based on the maximum likelihood (ML) or maximum a posteriori (MAP) criteria. In this way, interspeaker information that discriminates between diffe...

More than half of all US import relationships begin with less than $10,000 annually. The median relationship is observed to last just one year. The incidence and duration of these relationships are consistent with a matching model of international trade. The preponderance of small starting relationships reveals uncertainty present in formation of trade relationships. Initial size, reliability, ...

In a world where poor countries provide weak protection for intellectual property rights, market integration will systematically shift technical change in favor of rich nations. For this reason, free trade can increase international income differences. At the same time, integration with countries where intellectual property rights are weakly protected can have a large adverse effect on the worl...

I n this paper, the evaluation of the real exchange rate transfer and the asymmetric transmission of real exchange rate fluctuations to the export prices of food products for the country during the period (2001-2015) was studied using two approaches of PMG and GMM systems. The TGARCH method was used to calculate the real exchange rate fluctuation index and the Markov Switching method was u...

More than half of all US import relationships begin with less than $10,000 annually. The median relationship is observed to last just one year. The incidence and duration of these relationships are consistent with a search model of international trade. The preponderance of small starting relationships reveals uncertainty present in formation of trade relationships. Initial size, reliability, an...

This paper examines shipments of wine from European producers to various European ports. The research question focuses on disaggregated decisions on which port to use controlling for port performance, distance, and whether a national border must be crossed to reach the port. Using a mixed logit model we find heterogeneous impacts of distance, performance, and national borders on port choice acr...

We provide evidence that increased political influence, arising from CIA interventions during the Cold War, was used to create a larger foreign market for American products. Following CIA interventions, imports from the US increased dramatically, while total exports to the US were unaffected. The surge in imports was concentrated in industries in which the US had a comparative disadvantage, not...

This paper applies the recently developed econometric methods of panel unit root tests and non-linear mean-reversion to investigate price convergence in China --the largest transitional economy in the world. We find that prices did converge to the law of one price in China for an overwhelming majority of goods and services based on a large panel dataset. The finding sheds light on the extent of...

This paper develops a dynamic model of innovation and international trade in which agents can direct their research efforts to specific goods the economy. Trade affects direction through its impact on expected market size for an invention, leading two-way relationship between technology absent standard quantitative Ricardian models. Following theory-consistent strategy estimate extent endogenou...