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A Dynamic Resource Allocation on Service Supply Chain InTech
Soo Wook Kim; Kanghwa Choi.
Through the study, 6 variables for interactions between causes and effects are found, related to the profit maximization of an internet based company in management aspect from the internet bookstore, which is one of the most common types of internet shopping malls. And by connecting all the variables in complex, the map for the cause and effect is systematically constructed. Furthermore, by verifying the necessary information of system dynamics model for the purpose of testing the resource distributed decision making model, it made the resource distributed decision making possible. Based on these contents, the relation between the variable, related to the level of customer's purchase / loyalty in the internet bookstore, and the resource distribution...
Tipo: 19 Palavras-chave: Supply Chain.
Ano: 2008 URL: http://www.intechopen.com/articles/show/title/a_dynamic_resource_allocation_on_service_supply_chain
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A Geometric Approach to Scheduling of Concurrent Real-time Processes Sharing Resources InTech
Thao Dang; Philippe Gerner.
Tipo: 19 Palavras-chave: Multiprocessor Scheduling; Theory and Applications.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/a_geometric_approach_to_scheduling_of_concurrent_real-time_processes_sharing_resources
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A Novel 4-DOF Parallel Manipulator H4 InTech
Jinbo Wu; Zhouping Yin.
Tipo: 19 Palavras-chave: Parallel Manipulators; Towards New Applications.
Ano: 2008 URL: http://www.intechopen.com/articles/show/title/a_novel_4-dof_parallel_manipulator_h4
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A Teaching-Free Robot System Utilizing Three-Dimensional CAD Product Data InTech
Yoichi Nagao; Hideaki Ohta; Fumihiro Honda.
A welding robot system for large box structures has been developed and put to practical use to automate welding and to reduce labor requirements. The system automatically generates the robot operation data based on the design information from a three-dimensional CAD unit without the need for teaching by humans. This system was delivered to a client in September, 1999, since which time the system has been operating smoothly, allowing the factory to automate more than 80% of its welding work. In order to save the effort of preparation of welding information on a three-dimensional CAD unit, the authors have already implemented KCONG on Solidworks, a mechanical three-dimensional CAD. This new version has a function of definition of welding paths with which...
Tipo: 19 Palavras-chave: Industrial Robotics: Programming; Simulation and Applications.
Ano: 2006 URL: http://www.intechopen.com/articles/show/title/a_teaching-free_robot_system_utilizing_three-dimensional_cad_product_data
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Bearing-only Simultaneous Localization and Mapping for Vision-Based Mobile Robots InTech
Henry Huang; Frederic Maire; Narongdech Keeratipranon.
In this chapter, we proposed a vision-based approach to bearing-only SLAM in a 2dimensional space. We assumed the environment contained several visually distinguishable landmarks. This approach is inspired from techniques used in stereo vision and Structure From Motion. Our landmark initialization method relies solely on the bearing measurements from a single camera. This method does not require information from an odometer or a range sensor. All the object positions can be estimated in a landmark-based frame. The trade-off is that this method requires the robot to be able to move in a straight line for a short while to initialize the landmarks. The proposed method is particularly accurate and useful when the robot can guide itself in a straight line by...
Tipo: 19 Palavras-chave: Vision Systems: Applications.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/bearing-only_simultaneous_localization_and_mapping_for_vision-based_mobile_robots
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Bimanual Hand Tracking based on AR-KLT InTech
Hye-Jin Kim; Keun-Chang Kwak; Jae Jeon Lee.
Our ARKLT method is very useful for tracking and gesture recognition. As mentioned before, the ARKLT method consists of three points for each hand: the shoulder, elbow and hand. Since the model reflects the articulated motion of the human body which is restrained by the each limb's degree of freedom. That is, the possible region for hand movement is restricted in the elongated region of the shoulder and elbow movement. Therefore, the proposed method can devise effective prediction method, which enables to pre-detect crossing hands based on the body structure. In addition, the proposed method applies the KLT features and their regression line so that the body structure can effectively be fitted into the target. Also, the well-fitted KLT line can provide the...
Tipo: 19 Palavras-chave: Scene Reconstruction Pose Estimation and Tracking.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/bimanual_hand_tracking_based_on_ar-klt
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Connected Crawler Robot - Design and Motion Planning for Climbing a Step InTech
Sho Yokota.
This chapter showed sub-optimal number of crawler stages for connected crawler robot, through demonstrating the relationship between the number of stages and maximum climbable step height. After that, it proposed the actual connected crawler robot, and indicated basic experimental result. The conclusions of this chapter are as follows. A joint angle function was approximated by Fourier series and parameters were searched by GA.
Tipo: 19 Palavras-chave: Climbing and Walking Robots: towards New Applications.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/connected_crawler_robot_-_design_and_motion_planning_for_climbing_a_step
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Early Decision Making in Continuous Speech InTech
Odette Scharenborg; Louis ten Bosch; Lou Boves.
In the laboratory, listeners are able to reliably identify polysyllabic content words before the end of the acoustic realisation (e.g., Marslen-Wilson, 1987). In real life, listeners not only use acoustic-phonetic information, but also contextual constraints to make a decision about the identity of a word. This makes it possible for listeners to guess the identity of content words even before their uniqueness point. In the research presented here, we investigated an alternative ASR system, called SpeM, that is able to recognise words during the speech recognition process for its ability for recognising words before their acoustic offset ? but after their uniqueness point ? a capability that we dubbed `early recognition'. The restriction to recognition at...
Tipo: 19 Palavras-chave: Robust Speech Recognition and Understanding.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/early_decision_making_in_continuous_speech
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Effect of Robot and Screen Agent Recommendations on Human Decision-Making InTech
Kazuhiko Shinozawa; Junji Yamato.
Figure 5 shows that the dimensionality of the ESA causes differences in the recommendation's effect on user decision-making. The 3D body was not always superior to the 2D body for recommendation, and on-screen agents seem to have weak points, too. Those differences cannot be explained only by the advantages or disadvantage of pointing. In the 2D world condition, the color region was presented on the computer display. The display was in 3D space, so the color region was presented in the 3D space. From this point of view, there should be no difference between the 2D and 3D world conditions and therefore no difference in the effect. There must therefore be some other reasons. The results changed according to the combination of the location pointed to and the...
Tipo: 19 Palavras-chave: Human Robot Interaction.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/effect_of_robot_and_screen_agent_recommendations_on_human_decision-making
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Efficient Data Association Approach to Simultaneous Localization and Map Building InTech
Sen Zhang; Lihua Xie; Martin David Adams.
This chapter presented a data association algorithm for SLAM which offers a good trade-off between accuracy and computational requirements. We first formulated the data association problem in SLAM as a two dimensional assignment problem. In our work, only 1 frame of scan data is considered. The data association problem in SLAM is formulated as a two dimensional assignment problem rather than a three dimensional one which is an NP hard problem and is computationally more efficient. Further, since only one step prediction is involved, the effect of the vehicle model uncertainty is smaller as compared to the data association methods using two frame scan data. In order to obtain a fast solution, the 0-1 IP problem was firstly relaxed to an LP problem. Then we...
Tipo: 19 Palavras-chave: Mobile Robots: Perception & Navigation.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/efficient_data_association_approach_to_simultaneous_localization_and_map_building
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Energy-Efficient Walking for Biped Robot Using Self-Excited Mechanism and Optimal Trajectory Planning InTech
Qingjiu Huang; Kyosuke Ono.
In this chapter, we introduced the researches on energy-efficient walking of the biped robot for level ground form two viewpoints, one is semi-passive dynamic walking with only hip actuator using self-excited mechanism, another is active walking with actuators using optimal trajectory planning. We can make the conclusions as follow.
Tipo: 19 Palavras-chave: Humanoid Robots: New Developments.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/energy-efficient_walking_for_biped_robot_using_self-excited_mechanism_and_optimal_trajectory_plannin
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Event-driven Hybrid Classifier Systems and Online Learning for Soccer Game Strategies InTech
Yuji Sato.
In this section we have reported on the results of applying a classifier system to the acquisition of decision-making algorithms by agents in a soccer game. First, we introduced the hybrid system configurations of the existing algorithms and a classifier system. Then, in order to implement real-time learning while a game is in progress, we introduced a bucket brigade algorithm that implements reinforcement learning for the classifier, and a technique for selecting the subject of learning depending on the frequency of events. And finally, we introduced a method for performing learning by awarding players different reward values during reinforcement learning depending on whether they are assigned the role of forward, midfielder or defender. We played this...
Tipo: 19 Palavras-chave: Robotic Soccer.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/event-driven_hybrid_classifier_systems_and_online_learning_for_soccer_game_strategies
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Green's Functions of Matching Equations: A Unifying Approach for Low-level Vision Problems InTech
Jose R. A. Torreao; Joao L. Fernandes; Marcos S. Amaral; Leonardo Beltrao.
We have reviewed the computer vision applications of Green's functions of image matching equations. Green's functions of both uniform- and affine-matching second-order differential equations have been considered, and we have illustrated their use for the computer vision problems of edge detection, monocular shape estimation, and stereoscopy. The Green's filters considered are essentially point-spread functions which have proven able to model the image-plane projection of a broad class of motions, along with their associated blur effects (Ferreira Jr. et al., 2004). As shown here, such motion modeling capability makes them suitable for a unifying approach to several low-level vision processes, whose full consequences still remain to be explored. This work...
Tipo: 19 Palavras-chave: Vision Systems: Segmentation and Pattern Recognition.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/green_s_functions_of_matching_equations__a_unifying_approach_for_low-level_vision_problems
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Improving Face Recognition by Video Spatial Morphing InTech
Armando Padilha; Jorge Silva; Raquel Sebastiao.
This work addressed the applicability of Independent Component Analysis to face recognition through image analysis, namely to the facial authentication problem. We defined and tested the main functionality of a potentially automatic vision system. In fact, some aspects of the process have been performed manually, but it is well known and the literature clearly documents successful automated methods for those operations. The main purpose of the system is to validate the clients' access to restricted areas and to avoid the entrance of impostors, using as few restrictions on the environment as possible, and causing virtually no discomfort on the clients, both by not forcing them to multiple image acquisitions in the database construction phase, and by...
Tipo: 19 Palavras-chave: Face Recognition.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/improving_face_recognition_by_video_spatial_morphing
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Integrating Behaviors for Mobile Robots: an Ethological Approach InTech
Jose Maria Canas Plaza; Vicente Matellan Olivera.
An architecture for behaviour generation named JDE has been presented. Its distinguish characteristics are its hierarchical nature and the use of schemas as the basic building blocks. Its hierarchy model is taken from ethology and intended as a predisposition of the system to perceive certain stimuli and to response in a certain way to them. 327
Tipo: 19 Palavras-chave: Cutting Edge Robotics.
Ano: 2005 URL: http://www.intechopen.com/articles/show/title/integrating_behaviors_for_mobile_robots__an_ethological_approach
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Model-Based Control for Industrial Robots: Uniform Approaches for Serial and Parallel Structures InTech
Houssem Abdellatif; Bodo Heimann.
Tipo: 19 Palavras-chave: Industrial Robotics: Theory; Modelling and Control.
Ano: 2006 URL: http://www.intechopen.com/articles/show/title/model-based_control_for_industrial_robots__uniform_approaches_for_serial_and_parallel_structures
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Models of Continuous-Time Linear Time-Varying Systems with Fully Adaptable System Modes InTech
Miguel Angel Gutierrez de Anda; Arturo Sarmiento Reyes; Roman Kaszynski; Jacek Piskorowski.
In this chapter, a strategy for the formulation of a LTV scalar dynamical system with predefined dynamic behaviour was presented. Moreover, a model of a second-order LTV system whose dynamic response is fully adaptable was presented. It was demonstrated that the proposed model has a exponentially asymptotically stable behaviour provided that a set of stability constraints are observed. Moreover, it was demonstrated that the obtained system is BIBO stable as well. Finally, it was shown via simulations that the response of the proposed model reaches with a smaller overshoot its steady-state response compared to the response of a LTV lowpass filter proposed previously.
Tipo: 19 Palavras-chave: New Approaches in Automation and Robotics.
Ano: 2008 URL: http://www.intechopen.com/articles/show/title/models_of_continuous-time_linear_time-varying_systems_with_fully_adaptable_system_modes
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Multi-Agent System Concepts Theory and Application Phases InTech
Adel Al-Jumaily; Mohamed Al-Jaafreh.
The three robots with the current speeds in the circle formation can lock up a dynamic target of up to a speed of 0.300 meters/second. With that speed whenever the target tries to get out of the circle, it is blocked by one of the attackers and it has to avoid them and go back inside the circle. At worst case if the target's speed is slightly more than 0.300 the target is caught by one of the attackers doing the circle formation, but it can never escape.
Tipo: 19 Palavras-chave: Mobile Robotics; Moving Intelligence.
Ano: 2006 URL: http://www.intechopen.com/articles/show/title/multi-agent_system_concepts_theory_and_application_phases
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Multi-Legged Robot Control Using GA-Based Q-Learning Method With Neighboring Crossover InTech
Tadahiko Murata; Masatoshi Yamaguchi.
In this chapter, we proposed the neighboring crossover that improves the performance of QDSEGA for the multi-legged robot control problems. By introducing the neighboring crossover, we could reduce the number of generations to attain the target gain in the problem. We also show the fine effect of the modified reward for the problems with the moving target. When the target is moving in the problem, the robot needs to learn how to adjust its position toward the target. That is, it should learn how to adjust its direction toward the target, and how to convey its body toward the target. By adjusting the reward, we could improve the control of the multi-legged robot.
Tipo: 19 Palavras-chave: Frontiers in Evolutionary Robotics.
Ano: 2008 URL: http://www.intechopen.com/articles/show/title/multi-legged_robot_control_using_ga-based_q-learning_method_with_neighboring_crossover
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Multiple Sensor Fusion and Motion Control of Snake Robot Based on Soft-Computing InTech
Woo-Kyung Choi; Seong-Joo Kim; Hong-Tae Jeon.
The goal of this paper in a snake robot and sensor fusion is that the snake robot which imitates a real snake's an activity and being adapted to topography and has multiple sensors operates well with considering environment around it. To avoid overloads of a processor and process a huge data of multiple sensors in distribute methods, fusion module of sensor is constructed in a module. In a low level of sensor processes, we worked sensor fusion
Tipo: 19 Palavras-chave: Bioinspiration and Robotics Walking and Climbing Robots.
Ano: 2007 URL: http://www.intechopen.com/articles/show/title/multiple_sensor_fusion_and_motion_control_of_snake_robot_based_on_soft-computing
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