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Graph Stream Summarization

Nan Tang, Qing Chen, Prasenjit Mitra
2016 Proceedings of the 2016 International Conference on Management of Data - SIGMOD '16  
Given a graph stream G, directed or undirected, the problem of graph stream summarization is to summarize G as SG with a much smaller (sublinear) space, linear construction time and constant maintenance  ...  Due to the sheer volume and highly dynamic nature of graph streams, the practical way of handling them is by summarization.  ...  Graph Streams Summaries: Big Crunch The problem of summarizing graph streams is, given a graph stream G, to compute another data structure SG from G, such that: 1.  ... 
doi:10.1145/2882903.2915223 dblp:conf/sigmod/0001CM16 fatcat:rrn2b2qn3ja6bo44cl3z2dpgke

Time After Time — Big Bang Cosmology and the Arrows of Time [chapter]

Rüdiger Vaas
2011 The Arrows of Time  
Thanks also to Karl Marx who helped me with Figure 5 . Figures 1 and 2 were taken and modified from [169] .  ...  For support, comments, and extraordinary patience I am very grateful to Martin Bojowald, Claus Kiefer, Angela Lahee, Stephen Lyle, Laura Mersini-Houghton, Andreas Müller, André Spiegel, Nela Varwig, Doug  ...  In a quantum cosmological framework, however, everything with classical properties is destroyed in the maximum stage, due to quantum interference, and the big bang and big crunch are ultimately the same  ... 
doi:10.1007/978-3-642-23259-6_2 fatcat:xiky3q6syvdkpbudwd72xqqyyq

A synopsis of 5D physics

Luis Soto
2020 Zenodo  
and informative forces in multiple scales of the Universe, talking of multiple big-bangs balanced with big-crunches.  ...  stream of thought.  ... 
doi:10.5281/zenodo.4320331 fatcat:32m7q4ooezakjhgf6lvdi4blli

Quantum nature of the big bang: Improved dynamics

Abhay Ashtekar, Tomasz Pawlowski, Parampreet Singh
2006 Physical Review D  
The scalar field continues to serve as 'emergent time', the big bang is again replaced by a quantum bounce, and quantum evolution remains deterministic across the deep Planck regime.  ...  Acknowledgments: We would like to thank Martin Bojowald, Frank Herrmann and especially Kevin Vandersloot for discussions.  ...  Both the Big Bang and Big Crunch singularities are resolved and replaced by quantum bounces.  ... 
doi:10.1103/physrevd.74.084003 fatcat:nyeyrfdllbc2de3rjiwl2qj7gi

Baby black holes, strange matter and GNA risks in the Entropic age of History

Luis Sancho Soto
2008 Zenodo  
it: an ultra hot black hole baby is born exceedingly small and according to those laws it attracts mass, cools down as it evaporates the environment and grows in a novel explosion.  ...  We also consider that Hawking's equation, is mimetic to the '5D metrics' of a baby black hole, which once born at high metabolic temperature, feeds on mass: ∆ Mass x - ∆ temperature = K.  ...  big-bangs from beta decay to novas of stars and planets to galaxies.  ... 
doi:10.5281/zenodo.4318695 fatcat:cqrkt4ezrva6nkzknoc2yjcqie

Effective network reconfiguration with distributed generation allocation in radial distribution networks using water cycle algorithm

M El-sayed, M El-Hameed, M El-Arini
2019 Egyptian Journal for Engineering Sciences and Technology  
Moreover, the graph theory is presented to get the fundamental loops that used to reduce the search space for DNR by limiting the infeasible configurations during the optimization process, where the connection  ...  Loss sensitivity factor index is utilized to crop the candidate buses for DG allocation aiming to narrow the search space for DG sizing.  ...  In [34] , the problem is solved using a multi-objective based on bang-big crunch algorithm.  ... 
doi:10.21608/eijest.2019.97297 fatcat:ne3iimbbcvfbjbwlg43ez23p3u

Mainspring of the Universe -The Mechanism Sustaining the Universe's Steady State

Conrad Ranzan
2021 International Journal of Cosmology Astronomy and Astrophysics  
From an unprecedented and unique perspective, the article delves into the Mainspring object (somewhat analogous to a nonsingular black hole) and its four functional components: (1) The key component is  ...  Following logically from the defined principle of physicality, any excess mass acquired by the Mainspring object leads to mass extinction at the core -a process of mass destruction by aether deprivation  ...  The Big Bang closed model is an exemplar; it bounces between big bang and big crunch.  ... 
doi:10.18689/ijcaa-1000128 fatcat:kmuvuj3z6rfcvpwxxhqlwnj4ze

The expanding universe: an introduction [article]

Markus Pössel
2017 arXiv   pre-print
An introduction to the physics and mathematics of the expanding universe, using no more than high-school level / undergraduate mathematics.  ...  Acknowledgements The summer school "Astronomy from Four Perspectives" from August 26 to September 2 in Heidelberg, at which this lecture was held, was made possible through generous funding from the W.  ...  I would like to thank Thomas Müller for his thorough and, in parts, repeated reading of this manuscript and his many corrections and suggestions; I would also like to thank Martin Wetz, Björn Malte Schäfer  ... 
arXiv:1712.10315v1 fatcat:w65el5jkwbgdvpk7tmojev76gy

Energy rate density. II. Probing further a new complexity metric

E.J. Chaisson
2011 Complexity  
big bang to humankind.  ...  We have discerned a common basis upon which to compare all material structures, from the early Universe to the present Earth-again, from big bang to humankind inclusively.  ... 
doi:10.1002/cplx.20373 fatcat:cpemv6vhqreijibk6mgk5vxdhi

Constraining the physics of the early Universe [article]

J. P. P. Vieira
2019 arXiv   pre-print
The established cosmological theory which describes the history of the Universe since shortly after the "Big Bang" until today is remarkably successful.  ...  Thanks to the increasing precision of available observational data, we are now able to considerably constrain the geometry and composition of the Universe --- and to glimpse how these will evolve in the  ...  for the universe before the hot big bang.  ... 
arXiv:1903.11472v1 fatcat:qr3eajohjngzhogfjckytlgh6m

Spin-Torsion, Braneworlds and Changing Symmetry in the Universe [article]

Bernard Leong
2003 arXiv   pre-print
In this thesis, we explore three phenomenological alternatives to the current paradigm of the standard inflationary big bang scenario.  ...  are also insensitive to the high energy effects.  ...  PROLOGUE to explore alternative mechanisms to the standard inflationary big bang cosmology.  ... 
arXiv:gr-qc/0311016v1 fatcat:oqt6p77dyrbxbdu7wxd4seekmq

The Ghost in the Quantum Turing Machine [article]

Scott Aaronson
2013 arXiv   pre-print
Taking this viewpoint seriously leads to many interesting conceptual problems.  ...  I also compare the viewpoint explored here to the more radical speculations of Roger Penrose.  ...  from the Big Bang, the greater the entropy we'll find.  ... 
arXiv:1306.0159v2 fatcat:bhn6y7jtfnex3jr46gh3twkl4i

Formation of Structure in the Universe [article]

Robert H. Brandenberger (Brown University, Univ. of British Columbia)
1995 arXiv   pre-print
An introduction to modern theories for the origin of structure in the Universe is given.  ...  The final chapter is devoted to some speculative ideas concerning the connection between cosmology and fundamental physics, in particular to ways in which the singularity problem of classical cosmology  ...  Figure 3 : 3 Temperature-time diagram of standard big bang cosmology.  ... 
arXiv:astro-ph/9508159v2 fatcat:uf4hbyeaqzh37pixjrkodwlndq

Model with two periods of inflation

Simon Schettler, Jürgen Schaffner-Bielich
2016 Physical Review D  
Particular attention is paid to the case where the second inflation leads solely to a shift of the observable spectrum from the first inflation. A viable scenario requires this shift to be small.  ...  For various parameter sets of the potential the spectra of scalar and tensor perturbations that are expected to originate from this scenario are calculated.  ...  The scenario of a bouncing universe can be extended to a cyclic history of cosmic crunches and bangs [122] .  ... 
doi:10.1103/physrevd.93.025001 fatcat:iltyranpqbefhixijzbywmcmdu

Grand unified theories and supersymmetry in particle physics and cosmology

W De Boer
1994 Progress in Particle and Nuclear Physics  
The possible role of such a "primeval" force will be discussed in the framework of the Big Bang Theory.  ...  Such theories predict a new kind of force, which could provide answers to several open questions in cosmology.  ...  From this equation one observes that about one microsecond after the Big Bang the temperature has dropped from a value above the Planck temperature, corresponding to an energy of 10 19 GeV to a temperature  ... 
doi:10.1016/0146-6410(94)90045-0 fatcat:5szppim3rreujglthpdmiieipq
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