This paper discusses some main difficulties of restricted-domain question-answering systems, in particular the problem of precision performance. We propose methods for improving the precision, which can be classified into two main approaches: improving the Information Retrieval module, and improving its results. We present the application of these methods in a real QA system for a large company...

Designing of Method for Improving Synchronization Accuracy in Packet Networks Michal Pravda, Jiri Vodrazka Department of Telecommunication Engineering Czech Technical University in Prague Technicka 2, 166 27, Prague Czech Republic Abstract: This article deals with the possibilities of improving the synchronization accuracy over packet networks. The first part is focused on the analysis and meas...

We consider how the period of an oscillator is affected by white noise, with special attention given to the cases of additive noise and parameter fluctuations. Our treatment is based upon the concepts of isochrons, which extend the notion of the phase of a stable periodic orbit to the basin of attraction of the periodic orbit, and phase response curves, which can be used to understand the geome...

Understanding a program based on its source code is tedious and error-prone. Unfortunately, such a task is often necessary due to lack of adequate documentation. To assist software engineers in this task, automated analysis tools are often used. Such tools analyze the program source, computing information, and present that information to the tool user in a useful way. To compute correct informa...

mixed convection fluid flow and heat transfer of water-al2o3 nanofluid inside a lid-driven square cavity has been examined numerically in order to find the optimal distribution of discrete heat sources on the wall of a cavity. the effects of different heat source length, richardson number and grashof number on optimal heat source location has been investigated. moreover, the average nusselt num...

Despite the advent of scalable process mining techniques that can handle both noisy and incomplete real-life event logs, there is a lack of scalable algorithms capable of handling a common cause of model underfitting: when the same activity in the log in fact behaves differently depending on the number of occurrences in a particular trace. This paper proposes a simple scalable technique to iden...