Search Results - "Carvalho, J Frederico"
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An algorithm for calculating top-dimensional bounding chains
Published in PeerJ. Computer science (28-05-2018)“…We describe the Coefficient-Flow algorithm for calculating the bounding chain of an $(n-1)$-boundary on an $n$-manifold-like simplicial complex $S$. We prove…”
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Journal Article -
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Free space of rigid objects: caging, path non-existence, and narrow passage detection
Published in The International journal of robotics research (01-09-2021)“…In this work, we propose algorithms to explicitly construct a conservative estimate of the configuration spaces of rigid objects in two and three dimensions…”
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Long-term Prediction of Motion Trajectories Using Path Homology Clusters
Published in 2019 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) (01-11-2019)“…In order for robots to share their workspace with people, they need to reason about human motion efficiently. In this work we leverage large datasets of paths…”
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Conference Proceeding -
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Composability and controllability of structural linear time-invariant systems: Distributed verification
Published in Automatica (Oxford) (01-04-2017)“…Motivated by the development and deployment of large-scale dynamical systems, often comprised of geographically distributed smaller subsystems, we address the…”
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The effect of Target Normalization and Momentum on Dying ReLU
Published 13-05-2020“…Optimizing parameters with momentum, normalizing data values, and using rectified linear units (ReLUs) are popular choices in neural network (NN) regression…”
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Journal Article -
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Free Space of Rigid Objects: Caging, Path Non-Existence, and Narrow Passage Detection
Published 07-02-2020“…In this work we propose algorithms to explicitly construct a conservative estimate of the configuration spaces of rigid objects in 2D and 3D. Our approach is…”
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Journal Article -
7
Sequential Topological Representations for Predictive Models of Deformable Objects
Published 23-11-2020“…Deformable objects present a formidable challenge for robotic manipulation due to the lack of canonical low-dimensional representations and the difficulty of…”
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A Decomposition-Based Approach to Reasoning about Free Space Path-Connectivity for Rigid Objects in 2D
Published 27-10-2017“…In this paper, we compute a conservative approximation of the path-connected components of the free space of a rigid object in a 2D workspace in order to solve…”
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9
Path Clustering with Homology Area
Published in 2018 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION (ICRA) (01-05-2018)“…Path clustering has found many applications in recent years. Common approaches to this problem use aggregates of the distances between points to provide a…”
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Conference Proceeding -
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Static Output Feedback: On Essential Feasible Information Patterns
Published 08-09-2015“…In this paper, for linear time-invariant plants, where a collection of possible inputs and outputs are known a priori, we address the problem of determining…”
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11
Static output feedback: On essential feasible information patterns
Published in 2015 54th IEEE Conference on Decision and Control (CDC) (01-12-2015)“…In this paper, for linear time-invariant plants, where a collection of possible inputs and outputs are known a priori, we address the problem of determining…”
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Conference Proceeding