Emergencies often happen in a random and unexpected way, and operational forces must take immediate actions to reduce damages to the affected properties and people. Contextual information provides emergency response t...
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Emergencies often happen in a random and unexpected way, and operational forces must take immediate actions to reduce damages to the affected properties and people. Contextual information provides emergency response teams with an overview of the ongoing emergency and allows better decision making, such as the coordination of operational forces and resources provisioning. In this paper, we present the Emergency State Builder (ESB), acentral component we designed to aggregate contextual information about emergencies from multiple data sources with emphasis on fires, explosions, gas leaks and environmental damage incidents. The ESB is our answer to the challenge and providing timely, reliable and relevant contextual information to other components of a emergency management platform, called RESCUER, and, ultimately, to the emergency response teams. To illustrate the applicability of this work, we present how the RESCUER Public Communication module (RESCUER News) benefited from the information provided by ESB.
In this work, we proposed an efficient system for animal recognition and classification based on texture features which are obtained from the local appearance and texture of animals. The classification of animals are ...
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The objective of authors' study was to assess the effect of using the remote Tangent Galvanometer experiment on teaching and leaming physics in high-school classes. The idea was to understand how the remote experimen...
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The objective of authors' study was to assess the effect of using the remote Tangent Galvanometer experiment on teaching and leaming physics in high-school classes. The idea was to understand how the remote experiment can contribute to understanding scientific concepts of high school students, specifically in physics. Five public high-schools located in the urban area of Guaratingueta were selected for our pilot test. Only one of the schools has a science laboratory, which is often not used due to the shortage of appropriate material for experiments. However, all five schools have computer labs with internet access. Authors worked with a total of 335 students from five schools. Authors' pilot test began with theoretical classes, related to the experiment, given by the teachers of each school: Concept of Magnetic Induction Field and the Biot-Savart Law. The classes were followed by a pre-test. After applying the pre-test, the students accessed the experimental activity via Interact remote access in the computer lab. At the end of the experimental activity, the students completed the multiple choice post-tests. All students completed the post-tests. The pre-test and post-test analysis has been used as an assessment method in education and social sciences.
The learning Analytics has been and is still an emerging technology, the amount of research on learning analysis are increasing every day. The integration of new tools, methods and theories is necessary. The aim of th...
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The fundamental step in content based video retrieval is shot boundary detection. This step is essential for characterizing videos in any video processing system. Reliable detection of shots in videos is still a chall...
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ISBN:
(纸本)9781509020300
The fundamental step in content based video retrieval is shot boundary detection. This step is essential for characterizing videos in any video processing system. Reliable detection of shots in videos is still a challenging issue. In this work, we address automatic detection of abrupt shots in video sequences. We have proposed a method termed as Midrange LBP (MRLBP), which enhances the discriminative capability of basic LBP. Each frame of a video is processed to extract LBP histogram values based on midrange statistics for its description. A dissimilarity measure is applied on the feature vectors of adjacent frames and the distance values obtained are used for shot detection process using adaptive threshold approach. To check the efficacy of the proposed method, we carried out experiments on a subset of standard video data set TRECVID 2001. The results obtained by the proposed approach outperform the existing shot boundary detection algorithms in terms of different performance measures.
Motion control for a high degrees of freedom humanoid robot is one the hardest problems in Mobile Robotics. Researchers have been very successful in designing walking motions using reduced order mathematical models ba...
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ISBN:
(纸本)9781509036578
Motion control for a high degrees of freedom humanoid robot is one the hardest problems in Mobile Robotics. Researchers have been very successful in designing walking motions using reduced order mathematical models based on the ZMP approach. However, this approach is unable to design very dynamic motions, such as movements to get up and long distance kicks. In these cases, keyframe movements have proven to be a successful technique. Therefore, this paper presents a system that allows a parallel approach for optimizing keyframe movements for the Robocup 3D Soccer Simulation League. Moreover, optimization results obtained using this system are shown to validate it.
This paper presents a methodology for deriving the robot's and the computer vision system's performance requirements for the IEEE Very Small Size Competition. Representative behaviors were modeled and then a f...
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ISBN:
(纸本)9781509036578
This paper presents a methodology for deriving the robot's and the computer vision system's performance requirements for the IEEE Very Small Size Competition. Representative behaviors were modeled and then a full simulation environment was developed in order to access the impact of a set of parameters in the performance of the whole system. Using this setup, we could accurately estimate what are the necessary requirements both for the robot and the computer vision system for achieving a desired overall system performance.
This paper presents the application of the localization technique known as Monte Carlo Localization for the estimation of the global pose of virtual robots agents in the Robocup 3D Soccer Simulation League. For this s...
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ISBN:
(纸本)9781509036578
This paper presents the application of the localization technique known as Monte Carlo Localization for the estimation of the global pose of virtual robots agents in the Robocup 3D Soccer Simulation League. For this specific problem, a special formulation for this famous method is demanded in order to deal with the kidnapping problem, i. e. when the robot is moved by an external agent. We extended the classic landmark observation to incorporate also field lines observations. In this work, we will introduce the filtering algorithm and describe the stochastic modeling and implementation traits concerning this challenge. We also conducted tests in the RoboCup Soccer 3D environment to demonstrate the results obtained, especially the improvement due to the inclusion of lines observation.
Clustering methods have a wide range of applications. However, the presence of missing attribute values on the dataset may limit the use of clustering methods. Developing clustering methods that can deal with missing ...
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ISBN:
(纸本)9782875870278
Clustering methods have a wide range of applications. However, the presence of missing attribute values on the dataset may limit the use of clustering methods. Developing clustering methods that can deal with missing data has been a topic of interest among researchers in recent years. This work presents a variant of the well known k-means algorithm that can handle missing data. The proposed algorithm uses one type of soft constraints for observed data and a second type for imputed data. Four public datasets were used in the experiments in order to compare the performance of the proposed model with a traditional k-means algorithm and an algorithm that uses soft constraints only for observed data. The results showed that the proposed method outperformed the benchmark methods for all datasets considered in the experiments.
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