Results 31 to 40 of about 5,765,386 (368)

From average case complexity to improper learning complexity [PDF]

open access: yes, 2014
The basic problem in the PAC model of computational learning theory is to determine which hypothesis classes are efficiently learnable. There is presently a dearth of results showing hardness of learning problems. Moreover, the existing lower bounds fall
Berthet Q.   +3 more
core   +1 more source

A matter of ephemerality: the study of Kel Tadrart Tuareg (southwest Libya) campsites via quantitative spatial analysis

open access: yesEcology and Society, 2016
We examined the settlement structure from the Kel Tadrart Tuareg, a small pastoral society from southwest Libya. Our objective was to apply spatial analysis to establish the statistical significance of specific patterns in the settlement layout.
Stefano Biagetti   +2 more
doaj   +1 more source

Fixed-TimeBackstepping Control of Quadrotor Trajectory Tracking Based On Neural Network

open access: yesIEEE Access, 2020
This paper aims at the trajectory tracking of a quadrotor. A novel fixed-time backstepping control design scheme is proposed for the quadrotor based on adaptive neural control approach.
Mingyu Wang, Bing Chen, Chong Lin
doaj   +1 more source

Algorithms and Bounds for Very Strong Rainbow Coloring

open access: yes, 2018
A well-studied coloring problem is to assign colors to the edges of a graph $G$ so that, for every pair of vertices, all edges of at least one shortest path between them receive different colors.
Algorithms and Complexity   +8 more
core   +1 more source

Separating decision tree complexity from subcube partition complexity [PDF]

open access: yes, 2015
The subcube partition model of computation is at least as powerful as decision trees but no separation between these models was known. We show that there exists a function whose deterministic subcube partition complexity is asymptotically smaller than ...
Kothari, Robin   +2 more
core   +2 more sources

Oriented Getzler-Kapranov complexes and framed curves [PDF]

open access: yesarXiv, 2022
In the present paper, we introduce and study oriented Getzler-Kapranov complexes. These complexes are generalizations of S. Merkulov's oriented graph complex. We investigate their relation to the cohomology of moduli spaces of complex and tropical curves, ribbon graph complexes, and motivic structures in string topology.
arxiv  

The Complexity of Complex Patients [PDF]

open access: yesJournal of General Internal Medicine, 2015
A s the population of the United States ages, and more and more people live with multiple chronic conditions, the issue of complex patients is receiving increasing attention. Physicians have recognized that disease-centric approaches to clinical management have serious limitations for patients with multiple co-occurring medical conditions.
openaire   +3 more sources

An Unintended Effect of Financing the University Education of the Most Brilliant and Poorest Colombian Students: The Case of the Intervention of the Ser Pilo Paga Program

open access: yesComplexity, 2018
In this paper, we show an unintended effect of the program Ser Pilo Paga (SPP) that was a flagship program of the Colombian government between 2014 and 2018.
Pablo Medina   +7 more
doaj   +1 more source

Automatic design of mechanical metamaterial actuators

open access: yesNature Communications, 2020
Efficient strategies to optimize metamaterial design for specific applications are urgently needed despite the rapid progress in this area. Here the authors propose a computational method combining an optimization algorithm with discrete element ...
Silvia Bonfanti   +4 more
doaj   +1 more source

On the Complexity of Automatic Complexity [PDF]

open access: yesTheory of Computing Systems, 2017
Generalizing the notion of automatic complexity of individual strings due to Shallit and Wang, we define the automatic complexity $A(E)$ of an equivalence relation $E$ on a finite set $S$ of strings. We prove that the problem of determining whether $A(E)$ equals the number $|E|$ of equivalence classes of $E$ is $\mathsf{NP}$-complete.
openaire   +3 more sources

Home - About - Disclaimer - Privacy