Diffraction of pulsed electromagnetic (EM) waves in a slot excited Fabry Perot type resonator antenna is studied analytically in the modified Kirchhoff approximation. Closed-form space-time expressions for the radiate...
ISBN:
(纸本)9781785618154;9781785618161
Diffraction of pulsed electromagnetic (EM) waves in a slot excited Fabry Perot type resonator antenna is studied analytically in the modified Kirchhoff approximation. Closed-form space-time expressions for the radiated EM fields are found using the Cagniard-DeHoop technique. Illustrative numerical examples are given.
Apache Spark is commonly used as a big data analytical platform on powerful computer clusters, as it primarily employ the main computer memory for the evaluation. Our attempt adds self-organizing map software librarie...
详细信息
Apache Spark is commonly used as a big data analytical platform on powerful computer clusters, as it primarily employ the main computer memory for the evaluation. Our attempt adds self-organizing map software libraries onto a single big data analytical stack and is efficient and fast enough even on a standard single computer. This innovative approach brings the big data analysis to researchers with limited resources. Our genuine idea was experimentally confirmed and is described here. As a case study for our method we we used the available #Brexit data and the sentiment analysis of corresponding tweets and the correlation with the stock exchange data.
We introduce perfect half space games, in which the goal of Player 2 is to make the sums of encountered multi-dimensional weights diverge in a direction which is consistent with a chosen sequence of perfect half space...
详细信息
ISBN:
(纸本)9781509030187
We introduce perfect half space games, in which the goal of Player 2 is to make the sums of encountered multi-dimensional weights diverge in a direction which is consistent with a chosen sequence of perfect half spaces (chosen dynamically by Player 2). We establish that the bounding games of Jurdziński et al. (ICALP 2015) can be reduced to perfect half space games, which in turn can be translated to the lexicographic energy games of Colcombet and Niwiński, and are positionally determined in a strong sense (Player 2 can play without knowing the current perfect half space). We finally show how perfect half space games and bounding games can be employed to solve multi-dimensional energy parity games in pseudo-polynomial time when both the numbers of energy dimensions and of priorities are fixed, regardless of whether the initial credit is given as part of the input or existentially quantified. This also yields an optimal 2-EXPTIME complexity with given initial credit, where the best known upper bound was non-elementary.
The ability to categorize objects and outcomes of events using auditory signals is rather advanced in humans. When it comes to robots, limitations in sensing pose many challenges for this type of categorization specif...
详细信息
Image dehazing deals with the removal of undesired loss of visibility in outdoor images due to the presence of fog. Retinex is a color vision model mimicking the ability of the Human Visual System to robustly discount...
详细信息
In this work, a serious game is presented to sensitize young people to stigma in mental health. This a video game, developed by a multidisciplinary team (computer scientists, psychologists, psychiatrists and educators...
详细信息
Color is a powerful feature for image analysis but it is usually not used in image classification schemes. We propose a method to combine fuzzy color information with the result obtained from a One-Versus-All classifi...
详细信息
ISBN:
(纸本)9781509060351
Color is a powerful feature for image analysis but it is usually not used in image classification schemes. We propose a method to combine fuzzy color information with the result obtained from a One-Versus-All classifier (OVA) trained with Bag-of-features. This method consists in weighting the outputs of the OVA classifier based on the distances between the new image to be classified and the classes. Experimental results show that our approach improves OVA classifier performance.
Natural-language processing of historical documents is complicated by the abundance of variant spellings and lack of annotated data. A common approach is to normalize the spelling of historical words to modern forms. ...
详细信息
The reassembly of a broken archaeological ceramic pottery from its fragments (called sherds) is an open and complex problem, which remains a scientific process of extreme interest for the archaeological community. All...
As Mobile Learning (M-Learning) has had a great impact on online education, more and more mobile applications are designed and developed for the M-Learning. In this paper, a novel mobile-optimized application architec...
详细信息
暂无评论