The investment industry has recently continued to provide the greatest experience and has grown the number of investors to this day. It also increases the quantity of traded investment assets because of its varied cen...
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The principle of network construction and the principle of request signals service of Secondary surveillance radar systems predetermined the work of the respondents of the considered systems in conditions of intra-sys...
ISBN:
(数字)9781538652640
ISBN:
(纸本)9781538652657
The principle of network construction and the principle of request signals service of Secondary surveillance radar systems predetermined the work of the respondents of the considered systems in conditions of intra-system and intentional correlated and uncorrelated interferences. The article estimates the impact of masking fluctuation interferences on the quality of the request signals detection. It is shown that the choice of time-interval codes as the request signals predetermined the low noise immunity of the considered systems when a channel is exposed by the fluctuation interference.
We study cocartesian fibrations in the setting of the synthetic (∞,1)-category theory developed in simplicial type theory introduced by Riehl and Shulman. Our development culminates in a Yoneda Lemma for cocartesian ...
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User modelling in on-line distance learning is an important research field focusing on two important aspects: describing and predicting students' actions and intentions as well as adapting the learning process to ...
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User modelling in on-line distance learning is an important research field focusing on two important aspects: describing and predicting students' actions and intentions as well as adapting the learning process to students' features, habits, preferences, and so on. The aim is to greatly stimulate and improve the learning experience. Indeed, on the one hand, students' intentions may change during the realization of learning activities and thus their actions evolve accordingly as the learning process moves forward. On the other hand, adaptive systems can effectively plan and design appropriate learning tasks according to students' features, habits and interests with the aim of facilitating the achievement of the learning goal. In this context, user modelling implies a continuous processing and analysis of user interaction data during long-term learning activities, which produces large and considerably complex information. As a consequence, processing this information is costly and could require computational capacity beyond that of a single computer. In this paper, we show how a grid approach can considerably decrease the processing time of log data of on-line distance educational Web-based systems. Our prototype is based on the master-worker paradigm and is implemented using a peer-to-peer platform running on the Planetlab nodes. The results of our study show the feasibility of using grid middleware to speed and scale up the processing of log data and thus achieve an efficient and dynamic user modeling in on-line distance learning
In the paper, based on a comparative analysis of the methods of processing time-interval codes used as secondary surveillance radar information signals consisting of a different sequence of performing joint decoding o...
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ISBN:
(数字)9781538652640
ISBN:
(纸本)9781538652657
In the paper, based on a comparative analysis of the methods of processing time-interval codes used as secondary surveillance radar information signals consisting of a different sequence of performing joint decoding operations, selecting signals by duration and time position, it is shown that the most effective is the signal processing method in which first the signals are decoded, then the signals are selected in accordance with the duration and in the future with the selection according to the time position, which provides the lowest probability of a false alarm of the first kind.
One of the major difficulties in controlling software development project cost overruns and schedule delays has been developing practical and accurate software cost models. Software development could be modeled as an ...
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One of the major difficulties in controlling software development project cost overruns and schedule delays has been developing practical and accurate software cost models. Software development could be modeled as an economic production process and we therefore propose a theoretical approach to software cost modeling. Specifically, we present the Minimum Software Cost Model (MSCM), derived from economic production theory and systems optimization. The MSCM model is compared with other widely used software cost models, such as COCOMO and SLIM, on the basis of goodness of fit and quality of estimation using software project data sets available in the literature. Judged by both criteria, the MSCM model is comparable to, if not better than, the SLIM, and significantly better than the rest of the models. In addition, the MSCM model provides some insights about the behavior of software development processes and environment, which could be used to formulate guidelines for better software project management polic es and practices.
This paper purports to share with the higher education community the global PBL active learning curriculum and the learning environment, which have been collaboratively developed with the universities in Taiwan and Ka...
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This paper purports to share with the higher education community the global PBL active learning curriculum and the learning environment, which have been collaboratively developed with the universities in Taiwan and Kansai University (KU). The collaborated universities developed an optimal curriculum to enhance and nurture students' "Future Work Skills 2020" defined by the Institute for the Future, such future human skills as Sense Making, Social Intelligence, Novel & Adaptive Thinking, Cross-Cultural Competencies, Computational Thinking, New Media Literacy, Transdisciplinarity, Design Mindset, Cognitive Load Management, and Virtual Collaboration. The curriculum fully employs PBL strategies in global teams, where teams for PBL are organized with students with heterogeneous cultural backgrounds in the virtual learning environment. The basic concept of such curriculum is based on COIL (Collaborative Online International Learning), originally developed by State University of New York. COIL makes full usage of IT to generate virtual learning environment for students worldwide. In order to go beyond the COIL concept incorporating the future skills defined by IFTF, the allied universities employed PBL in global AGILE teams to deepen insights from various cultural viewpoints in terms of consensus building through team discussions. Due to the spatial and temporal differences, enrolled students conducted their team learning activities in the virtual learning environment asynchronously, making use of IT technologies and cloud services in order to be on "the same page" in the progress of the project throughout the course. Further, the assessment strategies to enhance students' efficacy is the key factor in the course, which is also discussed with examples. This paper reports the global PBL active learning curriculum and environment collaboratively developed with the universities in Taiwan and Kansai University.
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