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Incremental closeness centrality in distributed memory

Ahmet Erdem Sarıyüce, Erik Saule, Kamer Kaya, Ümit V. Çatalyürek
2015 Parallel Computing  
In this paper, we propose Streamer, a distributed memory framework for incrementally maintaining the closeness centrality scores of a network upon changes.  ...  The best known algorithm to compute the CC scores makes it impractical to recompute them from scratch after each modification.  ...  To be able to do that, the incremental algorithms main-tain complex information such as the biconnected component decomposition of the current graph [25] .  ... 
doi:10.1016/j.parco.2015.01.003 fatcat:klbizqhklnh5vnls3zx25bdxfe

Monitor placement for maximal identifiability in network tomography

Liang Ma, Ting He, Kin K. Leung, Ananthram Swami, Don Towsley
2014 IEEE INFOCOM 2014 - IEEE Conference on Computer Communications  
The basis to our solution is an efficient algorithm for determining all identifiable links for a given monitor placement.  ...  Based on this algorithm, we develop a polynomial-time greedy algorithm to incrementally place monitors such that each newly placed monitor maximizes the number of additional identifiable links.  ...  There exist fast algorithms to decompose an arbitrary graph G into biconnected components [16] and then triconnected components [17] .  ... 
doi:10.1109/infocom.2014.6848079 dblp:conf/infocom/MaHLST14 fatcat:gosuppw7pnd5ln4t7qw5gbd6te

An experimental comparison of four graph drawing algorithms

Giuseppe Di Battista, Ashim Garg, Giuseppe Liotta, Roberto Tamassia, Emanuele Tassinari, Francesco Vargiu
1997 Computational geometry  
In this paper we present an extensive experimental study comparing four general-purpose graph drawing algorithms.  ...  The four algorithms take as input general graphs (with no restrictions whatsoever on connectivity, planarity, etc.) and construct orthogonal grid drawings, which are widely used in software and database  ...  Acknowledgements We thank Yannis Tollis, Achilleas Papakostas and the anonymous referees for useful comments and suggestions.  ... 
doi:10.1016/s0925-7721(96)00005-3 fatcat:gumdlfc3irccrfw4omci22r3ya

SNAP, Small-world Network Analysis and Partitioning: An open-source parallel graph framework for the exploration of large-scale networks

David A. Bader, Kamesh Madduri
2008 Proceedings, International Parallel and Distributed Processing Symposium (IPDPS)  
We conduct an extensive experimental study on real-world graph instances and demonstrate that our parallel schemes, coupled with aggressive algorithm engineering for smallworld networks, give significant  ...  We present SNAP (Small-world Network Analysis and Partitioning), an open-source graph framework for exploratory study and partitioning of large-scale networks.  ...  We thank Nicolas Bitouze (ENS Cachan) for implementing the parallel greedy agglomeration algorithm, and Jon Berry and Bruce Hendrickson (Sandia National Laboratories) for discussions on large-scale graph  ... 
doi:10.1109/ipdps.2008.4536261 dblp:conf/ipps/BaderM08 fatcat:gceim62ogjdybe4nfyx224t4wa

Achieving Fault-Tolerant Network Topology in Wireless Mesh Networks [chapter]

Svilen Ivanov, Edgar Nett
2012 Wireless Mesh Networks - Efficient Link Scheduling, Channel Assignment and Network Planning Strategies  
Then we will discuss related work to the automatic base station planning algorithm.  ...  Availability of the radio coverage The availability of the service radio coverage is a necessary condition for reliable communication in wireless networks.  ...  The project flexWARE (Flexible Wireless Automation in Real-Time Environments) develops a communication system for factory-wide wireless real-time control [12, 13, 38] .  ... 
doi:10.5772/50173 fatcat:ees7q5gu7feethplpqnpbkkvwa

Large Deviations of Convex Hulls of Random Walks and Other Stochastic Models

Hendrik Schawe, Alexander K. Hartmann, Joachim Krug
2019 Zenodo  
The same interaction also leads to an increased difficulty in obtaining results analytically, such that the numerical examination of the whole distribution seems worthwhile.  ...  For this rather simple model much progress was made in the last decades and it is the only problem of this thesis for which prior numerical results of the whole distribution exists in the special case  ...  Large-deviation properties of the largest biconnected component for random graphs The first author, Hendrik Schawe, is the author of the thesis at hand. Alexander K.  ... 
doi:10.5281/zenodo.3377932 fatcat:pbej6euvmjdtjkantta66er77u

Multi-Robot Path-Planning Problem for a Heavy Traffic Control Application: A Survey

Ebtehal Turki, Hisham Al-Rawi
2016 International Journal of Advanced Computer Science and Applications  
This survey looked at the methods used to solve multi-autonomous vehicle path-planning for an application of heavy traffic control in cities.  ...  The study found that decoupled centralised approaches are the most relevant approaches for an autonomous vehicle path-planning problem for three reasons: (1) a city is a large environment and coupled centralised  ...  Multi-robot path planning (MPP) is an abstraction of the problem of finding the complete optimal path from the start point to the target point for each robot with the minimum time and path length while  ... 
doi:10.14569/ijacsa.2016.070623 fatcat:7f64mov5uvdh5hrbwlgz4qgyw4

On the Complexity of Checking Transactional Consistency [article]

Ranadeep Biswas, Constantin Enea
2019 arXiv   pre-print
Transactions simplify concurrent programming by enabling computations on shared data that are isolated from other concurrent computations and are resilient to failures.  ...  Modern databases provide different consistency models for transactions corresponding to different tradeoffs between consistency and availability.  ...  We extend these results even further by relying on an abstraction of executions called communication graphs [15] .  ... 
arXiv:1908.04509v1 fatcat:tmr2a6whgjholfxklnucsn2hwe

Poly-logarithmic deterministic fully-dynamic algorithms for connectivity, minimum spanning tree, 2-edge, and biconnectivity

Jacob Holm, Kristian de Lichtenberg, Mikkel Thorup
1998 Proceedings of the thirtieth annual ACM symposium on Theory of computing - STOC '98  
Deterministic fully dynamic graph algorithms are presented for connectivity, minimum spanning tree, 2-edge connectivity, and biconnectivity.  ...  n) biconnectivity.  ...  We would like to thank Haim Kaplan for careful comments to an earlier draft of the document.  ... 
doi:10.1145/276698.276715 dblp:conf/stoc/HolmLT98 fatcat:i3sknyp5ffc6tex4rslclngshi

10 Reasons to Get Interested in Graph Drawing [chapter]

Carla Binucci, Ulrik Brandes, Tim Dwyer, Martin Gronemann, Reinhard von Hanxleden, Marc van Kreveld, Petra Mutzel, Marcus Schaefer, Falk Schreiber, Bettina Speckmann
2019 Lecture Notes in Computer Science  
This is an invitation to the research area of graph drawing.  ...  It encompasses basic research such as graph theory, complexity theory, data structures, and graph algorithms as well as applied research such as software libraries, implementations, and applications.  ...  [22] compute an order of the connections suitable for incremental placement, leading to an O(n log n) time algorithm.  ... 
doi:10.1007/978-3-319-91908-9_6 fatcat:wchqxlk4fbfqdmhdjhhks74joe

Poly-logarithmic deterministic fully-dynamic algorithms for connectivity, minimum spanning tree, 2-edge, and biconnectivity

Jacob Holm, Kristian de Lichtenberg, Mikkel Thorup
2001 Journal of the ACM  
Deterministic fully dynamic graph algorithms are presented for connectivity, minimum spanning tree, 2-edge connectivity, and biconnectivity.  ...  n) biconnectivity.  ...  We would like to thank Haim Kaplan for careful comments to an earlier draft of the document.  ... 
doi:10.1145/502090.502095 fatcat:nytjliurxbenfeunk5tzhaakmi

Lightweight causal and atomic group multicast

André Schiper, Kenneth Birman, Pat Stephenson
1991 ACM Transactions on Computer Systems  
If a given group is in a biconnected component of size k, processes in this group need only to maintain and transmit timestamps for other groups in this biconnected component.  ...  Our approach will be to construct an abstract description of the group overlap structure for the system.  ...  ACKNOWLEDGMENTS The authors are grateful to Maureen Robinson for the preparation of many of the figures.  ... 
doi:10.1145/128738.128742 fatcat:touj52ue6zgqvjizvct6d2was4

Learning and Multiagent Reasoning for Autonomous Agents

Peter Stone
2007 International Joint Conference on Artificial Intelligence  
To be applicable for teams of autonomous robots, all algorithms must be fully distributed.  ...  An important component of this incremental design process involves reevaluating the assumptions made about bidders in light of auction outcomes.  ... 
dblp:conf/ijcai/Stone07 fatcat:2br3vltrvfefffmgztnr2ha75m

Counter strike

Pit Fender, Guido Moerkotte
2013 Proceedings of the VLDB Endowment  
For both optimization strategies, efficient enumeration algorithms have been published.  ...  However, there are two severe limitations for the topdown approach: The published algorithms can handle only (1) simple (binary) join predicates and (2) inner joins.  ...  We thank Simone Seeger for her help preparing this manuscript and the referees for their thorough feedback.  ... 
doi:10.14778/2556549.2556565 fatcat:izn2bsgkszglnastqnobapfgeq

Mobile Heterogeneous Sensor Network for Prioritized Sensing

R. Andres Cortez, Rafael Fierro, John Wood
2013 Journal of Communications  
We also provide an algorithm that allows for adding communication links to the minimal spanning tree of the heterogeneous proximity graph to create a biconnected graph that is robust to a single node failure  ...  We then combine a prioritized search algorithm and the communication constraints to provide a decentralized prioritized sensing control algorithm for a heterogenous sensor network that maintains network  ...  Algorithm 2 2 Biconnected Graph Algorithm (G B ) Assume a complete graph, G with n + m vertices, compute M ST G .  ... 
doi:10.12720/jcm.8.1.16-31 fatcat:5wkertlaefaufhlccqjxl5qkny
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