Results 81 to 90 of about 1,097 (101)

Something's "Fishy" at Global Ways and Gill Breeders - Analysis with nSpace and GeoTime

open access: closed2007 IEEE Symposium on Visual Analytics Science and Technology, 2007
GeoTime and nSpace are two interactive visual analytics tools that support the process of analyzing massive and complex datasets. The two tools were used to examine and interpret the 2007 VAST contest dataset. This poster paper describes how the capabilities of the tools were used to facilitate and expedite every stage of an analyst workflow.
Lynn Chien, Annie Tat, William Wright
semanticscholar   +3 more sources

Separation with the Ruzzo, Simon, and Tompa relativization implies Dspace(log n) ≠ Nspace(log n)

open access: closedInformation Processing Letters, 1987
Let NSPACE(log n)\(\) denote the class of languages accepted by nondeterministic oracle Turing machines that are restricted in the sense of Ruzzo, Simon, and Tompa. We show that it will be hard to find an oracle set A with DSPACE(log n)(A)\(=NSPACE(\log n)\) since this would separate the base classes DSPACE(log n) and NSPACE(log n).
Kirsig, Bernd, Lange, Klaus-Jörn
semanticscholar   +4 more sources

VAST 2007 Contest - Analysis with nSpace and GeoTime

open access: closed2007 IEEE Symposium on Visual Analytics Science and Technology, 2007
GeoTime and nSpace are two interactive visual analytics tools that support the process of analyzing massive and complex datasets. The two tools were used to examine and interpret the 2007 VAST contest dataset. This paper describes how the capabilities of the tools were used to facilitate and expedite every stage of the analysis.
Lynn Chien   +5 more
semanticscholar   +3 more sources

A relation between sparse and printable sets in NSPACE(log n)

open access: closedFoundations of Computer Science: Potential - Theory - Cognition, 1997
For the polynomial time classes NPsparse and NPprint it is known that these classes coincide if and only if nondeterministic exponential time is closed under complement ([Ha Ye 84]). Transfering this result to logarithmic space classes would lead to an equality of sparse and printable sets in NSPACE(log n) if and only if nondeterministic space classes ...
Bernd Kirsig
semanticscholar   +3 more sources

Towards the Complexity of Petri Nets and One Counter Machines via Coordinated Table Selective Substitution Systems

Symposium on Symbolic and Numeric Algorithms for Scientific Computing, 2021
We investigate computational resources used by Turing machines (TMs) and alternating Turing machines (ATMs) to accept languages generated by coordinated table selective substitution systems with two components.
Liliana Cojocaru
semanticscholar   +1 more source

The complexity of solution sets to equations in hyperbolic groups

Israel Journal of Mathematics, 2020
We show that the full set of solutions to systems of equations and inequations in a hyperbolic group, as shortlex geodesic words (or any regular set of quasigeodesic normal forms), is an EDT0L language whose specification can be computed in NSPACE(n2 log
L. Ciobanu, M. Elder
semanticscholar   +1 more source

The Sandbox for analysis: concepts and methods

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, 2006
The Sandbox is a flexible and expressive thinking environment that supports both ad-hoc and more formal analytical tasks. It is the evidence marshalling and sense-making component for the analytical software environment called nSpace. This paper presents
W. Wright   +4 more
semanticscholar   +1 more source

Solutions sets to systems of equations in hyperbolic groups are EDT0L in PSPACE

International Colloquium on Automata, Languages and Programming, 2019
We show that the full set of solutions to systems of equations and inequations in a hyperbolic group, with or without torsion, as shortlex geodesic words, is an EDT0L language whose specification can be computed in $\mathsf{NSPACE}(n^2\log n)$ for the ...
L. Ciobanu, M. Elder
semanticscholar   +1 more source

The Expressive Power of Uniform Population Protocols with Logarithmic Space

Symposium on Algorithmic Foundations of Dynamic Networks
Population protocols are a model of computation in which indistinguishable mobile agents interact in pairs to decide a property of their initial configuration. Originally introduced by Angluin et. al.
Philipp Czerner   +2 more
semanticscholar   +1 more source

Back to space

New Yearbook for Phenomenology and Phenomenological Philosophy, 2019
Exercise 1 Warm up 1. What are the best inclusions you know of NL and NPSPACE, into deterministic classes? Prove them briey. 2. A unidirectional verier is a Turing machine with an additional input tape, which head never moves to the left (stay or right ...
Lilian Alweiss
semanticscholar   +1 more source

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