Relevant bibliographies by topics / Multi-group connectivity

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Multi-group connectivity'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Multi-group connectivity"

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Li, Xiaoli, and Yugeng Xi. "FLOCKING OF MULTI-AGENT DYNAMIC SYSTEMS WITH GUARANTEED GROUP CONNECTIVITY*." Journal of Systems Science and Complexity 21, no. 3 (2008): 337–46. http://dx.doi.org/10.1007/s11424-008-9117-7.

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Casetti, Claudio Ettore, Carla Fabiana Chiasserini, Yufeng Duan, Paolo Giaccone, and Andres Perez Manriquez. "Data Connectivity and Smart Group Formation in Wi-Fi Direct Multi-Group Networks." IEEE Transactions on Network and Service Management 15, no. 1 (2018): 245–59. http://dx.doi.org/10.1109/tnsm.2017.2766124.

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Zhang, Yintao, Chengyan Lin, Lihua Ren, et al. "Study on Connectivity of Fractured-Vuggy Marine Carbonate Reservoirs Based on Dynamic and Static Methods." Journal of Marine Science and Engineering 13, no. 3 (2025): 435. https://doi.org/10.3390/jmse13030435.

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Fractured-vuggy marine carbonate reservoirs, as an unconventional energy resource, hold significant potential for exploration and development. In this study, the Manshen block of the Furman oilfield in the Tarim Basin, China, was selected as the research object. A systematic investigation was conducted on the types of marine carbonate reservoir bodies, production characteristics, and both static and dynamic connectivity. Static connectivity analysis was performed using the heat diffusion equation and the multi-source potential field method. Dynamic connectivity evaluation was carried out by co
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H.Vincent Poor, Narayan B. Mandayam, Wade Trappe, and Andrey Garnaev. "A multi-link communication connectivity game under hostile interference." ITU Journal on Future and Evolving Technologies 2, no. 1 (2021): 101–12. http://dx.doi.org/10.52953/swhp5412.

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In this paper, we consider a communication connectivity problem involving a primary user (transmitter, for example, a Ground Control Station (GCS)) servicing a group of secondary users (receivers, for example, drones) under hostile interference. We formulate this multi-link communication connectivity problem, where the channels are affected by Rayleigh fading, as a zero-sum power resource allocation game between a transmitter and an adversary (jammer). The transmitter's objective is to maximize the probability of communication connectivity with all the receivers. It is proven that the problem
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Coluzzi, Davide, and Giuseppe Baselli. "Diffuse and Localized Functional Dysconnectivity in Schizophrenia: a Bootstrapped Top-Down Approach." Fundamenta Informaticae 189, no. 2 (2023): 171–98. http://dx.doi.org/10.3233/fi-222157.

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Schizophrenia is a brain disorder leading to detached mind’s normally integrated processes. Hence, the exploration of the symptoms in relation to functional connectivity (FC) had great relevance in the field. Connectivity can be investigated on different levels, going from global features to single edges between pairs of regions, revealing diffuse and localized dysconnection patterns. In this context, schizophrenia is characterized by a different global integration with reduced connectivity in specific areas of the brain, part of the Default Mode Network (DMN). However, the assessment of FC pr
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Ferri, J., J. M. Ford, B. J. Roach, et al. "Resting-state thalamic dysconnectivity in schizophrenia and relationships with symptoms." Psychological Medicine 48, no. 15 (2018): 2492–99. http://dx.doi.org/10.1017/s003329171800003x.

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AbstractBackgroundSchizophrenia (SZ) is a severe neuropsychiatric disorder associated with disrupted connectivity within the thalamic-cortico-cerebellar network. Resting-state functional connectivity studies have reported thalamic hypoconnectivity with the cerebellum and prefrontal cortex as well as thalamic hyperconnectivity with sensory cortical regions in SZ patients compared with healthy comparison participants (HCs). However, fundamental questions remain regarding the clinical significance of these connectivity abnormalities.MethodResting state seed-based functional connectivity was used
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Zhu, Yu, Bangsen Tian, Chou Xie, et al. "Multi-Temporal InSAR Deformation Monitoring Zongling Landslide Group in Guizhou Province Based on the Adaptive Network Method." Sustainability 15, no. 2 (2023): 894. http://dx.doi.org/10.3390/su15020894.

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Due to the influence of atmospheric phase delays and terrain fluctuation in complex mountainous areas, traditional PS-InSAR technology often fails to select enough measurement points (MPs) and loses effective MPs during phase unwrapping. To solve this problem, this paper proposes an adaptive network construction algorithm, which combines the permanent scatterer (PS) points with the distributed scatterer (DS) points. Firstly, to ensure the extraction quality of the DS points, the covariance matrix of DS points is estimated robustly. Secondly, based on the traditional Delaunay triangulation netw
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Lopes Alves, Rael, Maxciel Zortea, Paul Vicuña Serrano, et al. "Modulation of neural networks and symptom correlated in fibromyalgia: A randomized double-blind multi-group explanatory clinical trial of home-based transcranial direct current stimulation." PLOS ONE 19, no. 11 (2024): e0288830. http://dx.doi.org/10.1371/journal.pone.0288830.

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Background Transcranial direct current stimulation (tDCS) might modulate neural activity and promote neural plasticity in patients with fibromyalgia (FM). This multi-group randomized clinical trial compared home-based active tDCS (HB-a-tDCS) on the left dorsolateral prefrontal cortex (l-DLPFC) or home-based sham tDCS (HB-s-tDCS), and HB-a-tDCS or HB-s-tDCS on the primary motor cortex (M1) in the connectivity analyses in eight regions of interest (ROIs) across eight resting-state electroencephalography (EEG) frequencies. Methods We included 48 women with FM, aged 30 to 65, randomly assigned to
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Sahel, Aurelia, Rafael Ceschin, Daryaneh Badaly, et al. "Increased Cerebello-Prefrontal Connectivity Predicts Poor Executive Function in Congenital Heart Disease." Journal of Clinical Medicine 12, no. 16 (2023): 5264. http://dx.doi.org/10.3390/jcm12165264.

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Background: Children and adolescents with congenital heart disease (CHD) are at risk for cognitive impairments, such as executive function deficits and motor delays, which can impact their academic and adaptive functioning as well as their quality of life. We investigated whether alterations in connectivity between the prefrontal and cerebellar brain structures exist between CHD and control cohorts and if these alterations could predict cognitive or motor impairment among youths with CHD. Methods: 53 participants with CHD and 73 healthy control participants completed multi-modal magnetic reson
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Hao, Yangguang, Zhongwei Shen, Jiexi Ma, Jiawei Li, and Mengqian Yang. "Research on the Spatial Network Connection Characteristics and Influencing Factors of Chengdu–Chongqing Urban Agglomeration from the Perspective of Flow Space." Land 14, no. 1 (2025): 120. https://doi.org/10.3390/land14010120.

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Urban Agglomerations (UAs), as the primary form of China’s new urbanization and an essential spatial unit for promoting coordinated regional development, play a crucial role in measuring the sustainable and healthy development of urban clusters through the assessment of spatial network connections among cities within the UAs. Taking the 16 prefecture-level cities of the Chengdu-Chongqing Urban Agglomeration (CCUA) as the research subject, this study constructs six types of element flow networks, including population flow, logistics, and information flow. Employing network visualization analysi
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Dissertations / Theses on the topic "Multi-group connectivity"

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Munim, Ziaul Haque, and Hans-Joachim Schramm. "The impacts of port infrastructure and logistics performance on economic growth: the mediating role of seaborne trade." SpringerOpen, 2018. http://dx.doi.org/10.1186/s41072-018-0027-0.

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Considering 91 countries with seaports, this study conducted an empirical inquiry into the broader economic contribution of seaborne trade, from a port infrastructure quality and logistics performance perspective. Investment in quality improvement of port infrastructure and its contribution to economy are often questioned by politicians, investors and general public. A structural equation model (SEM) is used to provide empirical evidence of significant economic impacts of port infrastructure quality and logistics performance. Furthermore, analysis of a multi-group SEM is performed by dividing
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Book chapters on the topic "Multi-group connectivity"

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Wekesa, Chemuku, Leila Ndalilo, and Carolyne Manya. "Reconciling Community Livelihood Needs and Biodiversity Conservation in Taita Hills Forests for Improved Livelihoods and Transformational Management of the Landscape." In Fostering Transformative Change for Sustainability in the Context of Socio-Ecological Production Landscapes and Seascapes (SEPLS). Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6761-6_2.

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AbstractThe fragmented forests of Taita Hills form an exceptional multi-functional socio-ecological production landscape with outstanding diversity of flora and fauna that provide ecosystem goods and services supporting human wellbeing and livelihood systems. However, these forests are threatened by illegal logging for wood products and encroachment for crop farming. A study was conducted in villages surrounding five forest fragments to establish the conservation programmes responsible for keeping these forests intact for provision of goods and services to the local communities. Semi-structure
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Han, Dongkun, Yijun Huang, Hejun Huang, and Tianrui Fang. "Distributed Coordination for Multi-Vehicle Systems in the Presence of Misbehaving Vehicles." In Advances in Transdisciplinary Engineering. IOS Press, 2025. https://doi.org/10.3233/atde250099.

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The coordination problem of multi-vehicle systems is of great interests in the area of autonomous driving and multi-vehicle control. This work mainly focuses on multi-task coordination problem of a group of vehicles with a bicycle model and some specific control objectives, including collision avoidance, connectivity maintenance and convergence to desired destinations. The basic idea is to develop a proper Lyapunov-like barrier function for all tasks and a distributed controller could be built in the presence of misbehaving vehicles. Control protocols are provided for both leader vehicle and f
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Rao, Bapuji, Sasmita Mishra, and Sarojananda Mishra. "Applications of Social Graphs." In Improving E-Commerce Web Applications Through Business Intelligence Techniques. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3646-8.ch013.

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The chapter focuses on the applications of three social graphs, namely author, email, and telephone. The important application of author graph is the real network communications among the authors publishing research papers. The authors have proposed an algorithm to extract sub-graphs of authors. Individual email sending is more frequently within a group rather than group sending. Such group entities can be detected and analyzed further for knowledge discovery. For this, the authors have proposed an algorithm for extraction of strong and weak communicator's sub-graph. The telephone graph with m
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Petkov George, Kalitzin Stiliyan, Demuru M., Widman G., Suffczynski P., and Lopes da Silva Fernando. "Computational Model Exploration of Stimulation Based Paradigm for Detection of Epileptic Systems." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2018. https://doi.org/10.3233/978-1-61499-929-4-324.

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A stimulation-based measurement paradigm is proposed that can provide a biomarker, which we call “separatrix proximity marker”, able to assess how close is a neural system from an epileptic transition. We use a distributed network of potentially multi-stable local systems that can have different levels of susceptibility for transitions to oscillatory states, considered surrogates of epileptic seizures. The simplest computational model of the bistable system is the complex-valued polynomial model, also called z6model that has been developed by our group. A two-dimensional gr
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Kan Zhen, Shea John M., and Dixon Warren E. "Navigation Function Based Decentralized Control of A Multi-Agent System with Network Connectivity Constraints." In NATO Science for Peace and Security Series - D: Information and Communication Security. IOS Press, 2014. https://doi.org/10.3233/978-1-61499-391-9-104.

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A wide range of applications require or can benefit from collaborative behavior of a group of agents. The technical challenge addressed in this chapter is the development of a decentralized control strategy that enables each agent to independently navigate to ensure agents achieve a collective goal while the system maintains network connectivity. Specifically, cooperative controllers are developed for networked agents that have both limited sensing and network connectivity constraints. By modeling the interaction among the agents as a graph, several different approaches to address the problems
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Conference papers on the topic "Multi-group connectivity"

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Li Xiaoli and Xi Yugeng. "Flocking of multi-agent dynamic systems with guaranteed group connectivity." In 2008 Chinese Control Conference (CCC). IEEE, 2008. http://dx.doi.org/10.1109/chicc.2008.4605646.

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Cherif, Mouna Regaieg, and Hela Moalla Frikha. "IoT Device Connectivity Selection Using a Hybrid Multi-Criteria Group Decision-Making Approach." In 2023 International Conference on Decision Aid Sciences and Applications (DASA). IEEE, 2023. http://dx.doi.org/10.1109/dasa59624.2023.10286610.

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Jung, SungHoon, and SaeWoong Bahk. "Online Control of Traffic Split and Distributed Cell Group State Decisions for Multi-connectivity." In 2020 IEEE Wireless Communications and Networking Conference (WCNC). IEEE, 2020. http://dx.doi.org/10.1109/wcnc45663.2020.9120660.

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Caregnato-Neto, Angelo, Marcos R. O. A. Maximo, and Rubens J. M. Afonso. "Trajectory Planning and Decision-Making for Multi-Robot Systems with Robust and Resilient Connectivity Maintenance and Human-Robot Collaboration." In Anais Estendidos do XVI Simpósio Brasileiro de Robótica. Sociedade Brasileira de Computação, 2024. https://doi.org/10.5753/sbrlars_estendido.2024.244518.

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This work addresses the problems of motion planning and decision-making for multi-robot systems with emphasis on the maintenance of communication network properties such as resiliency and connectivity. Planners based on mixed-integer programming and model predictive control (MPC) are proposed, enabling the group of robots to perform tasks while maintaining network connectivity considering potential bounded disturbances and robot failures. The requirement of both omnidirectional and directional line of sight between agents for communication links to be formed is studied. A novel algorithm for h
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Vogiatzis, Panagiotis, Shikui Chen, Xianfeng David Gu, Ching-Hung Chuang, Hongyi Xu, and Na Lei. "Multi-Material Topology Optimization of Structures Infilled With Conformal Metamaterials." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-85663.

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Topology optimization is being widely employed in designing metamaterial unit cells which can be utilized as core materials for structural components. In this paper, we carried out multi-material topology optimization using orthotropic metamaterials. After topology optimization, the microstructures of the metamaterials are mapped to the resulted irregular domains for each material phase, acting as infill. Different from the existing work, we proposed an alternative way of mapping the metamaterial microstructures to irregular domains by employing the conformal mapping theory. Conformal mapping
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Dzulkifli, Izyan Nadirah, Amy Mawarni M. Yusoff, Abdul Hakim Basri, et al. "Improving the Stratigraphic Concept of Channel Complex Reservoir of a Brown Field: A Case Study in Field A." In International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21406-ms.

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Abstract Major reservoirs in Field A namely A-2, A-3U, A-3M, and A-3L, are deposited within a multi stacked channel complex system within Group I in Malay Basin. These reservoirs were previously understood based on existing data to have no or very minimal vertical communication between them and are treated as separate systems. In 2018, three wells were proposed to drain the attic oil in the north region of A-3U reservoir. When drilling these infill wells, it was discovered that the pressure has exceeded initial reservoir pressure although the reservoir has been idle for almost a year prior to
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Parashar, Sarvagya, and Ivan Zhia Ming Wu. "A Novel Machine-Assisted Technique for Extracting Multiscale Vugs and Fractures in Heterogeneous Carbonates Sequence." In SPE Middle East Oil & Gas Show and Conference. SPE, 2021. http://dx.doi.org/10.2118/204555-ms.

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Abstract Predicting petrophysical properties in carbonate reservoirs is challenging due to the deposition and diagenetic history, which creates pore-scale features and heterogeneity at multiple-length scale. Non-fractured carbonate rocks with monomodal pore distribution often provide weak transportation properties compared to carbonates with multimodal pore system. The behaviour of such formations is subject to percolation effect where the connectivity of vug clusters control the poro-perm relationship which can be explained with high-resolution microresistivity images and nuclear magnetic res
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Issayev, Duman, Ulan Zhumadilov, Kalampyr Baktybayeva, et al. "Collaborative Evolution: Transforming Korolev Infill Wells from Single Wells to Mutli-Well Pad with Optimal Targets." In SPE Caspian Technical Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/223465-ms.

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Abstract Brownfields often pose challenges with identifying optimal locations to drill new wells and developing well trajectory that satisfies technical requirements both at the surface and subsurface. The team utilized risk-based technical and economic analysis which enabled high-quality decisions and created significant value within the Korolev field infill project. This important project involved drilling three new production wells in the field after a two decades of hiatus. At the early concept stage, TengizChevrOil (TCO) Reservoir Management Group (RMG) Wells Factory team collaborated wit
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Cayeux, E., B. Daireaux, G. Pelfrene, and R. Mihai. "Drilling Automation: Revisiting the Digital Drilling Program." In SPE/IADC International Drilling Conference and Exhibition. SPE, 2025. https://doi.org/10.2118/223774-ms.

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Abstract In parallel with the increasing adoption of drilling automation at the rig site, there is a notable emphasis on the digitalization of the drilling program. These activities should not be viewed in isolation, as reinventing the drilling program may lead to significant breakthroughs in how automated processes are seamlessly integrated into drilling operations. Drilling operations are largely predictable, with parameters such as the number of sections and stands typically set in advance and rarely updated. However, significant uncertainty often exists regarding formation depths, and geom
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Muñoz, David. "New strategies in proprioception’s analysis for newer theories about sensorimotor control." In Systems & Design 2017. Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/sd2017.2017.6903.

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Abstract Human’s motion and its mechanisms had become interesting in the last years, where the medecine’s field search for rehabilitation methods for handicapped persons. Other fields, like sport sciences, professional or military world, search to distinguish profiles and ways to train them with specific purposes. Besides, recent findings in neuroscience try to describe these mechanisms from an organic point of view. Until now, different researchs had given a model about control motor that describes how the union between the senses’s information allows adaptable movements. One of this sense is
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Reports on the topic "Multi-group connectivity"

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Abera, Mikyas, Jean Claude Byungura, Raymond Ndikumana, et al. Implementing e-Learning in low-resourced university settings: A policy and institutional perspectives at the University of Gondar and University of Rwanda. Mary Lou Fulton Teachers College, 2023. http://dx.doi.org/10.14507/mcf-eli.j11.

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The COVID-19 pandemic outbreak affected most universities, and it severely disrupted their face-to-face teaching and learning processes. The University of Gondar (UoG) and the University of Rwanda (UR) were no exceptions. Before the pandemic, E-learning was not an education norm in both institutions. Education was mainly face-to-face, inside a four-wall classroom experience. As COVID-19 restricted such experience, the two universities adopted a range of online platforms to support teaching, learning, and access to learning resources. Across the globe, E-learning solutions promise institutional
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