Filters








67,758 Hits in 5.8 sec

Morphological operations in recursive neighbourhoods

Pieter P Jonker
2004 Pattern Recognition Letters  
The benefit of the latter over an extension of the neighbourhood or the use of sub-cycles is emphasized.  ...  Two applications are presented that use the recursive neighbourhood in a 3D surface and a 3D curve anchor-skeleton variant.  ...  In literature [10] , often the terminology sequential algorithm versus parallel algorithm is used for the use of the recursive neighbourhood versus the local neighbourhood with sub-cycles.  ... 
doi:10.1016/j.patrec.2003.12.004 fatcat:nkhy5tvneneblgnbjs4phuqlya

Morphological Operations in Recursive Neighbourhoods [chapter]

Pieter P. Jonker
2002 Lecture Notes in Computer Science  
The benefit of the latter over an extension of the neighbourhood or the use of sub-cycles is emphasized.  ...  Two applications are presented that use the recursive neighbourhood in a 3D surface and a 3D curve anchor-skeleton variant.  ...  In literature [10] , often the terminology sequential algorithm versus parallel algorithm is used for the use of the recursive neighbourhood versus the local neighbourhood with sub-cycles.  ... 
doi:10.1007/3-540-45986-3_17 fatcat:wslgtx33d5fb5diuscspwnuesy

Weakly symmetric graphs, elementary landscapes, and the TSP

A. Solomon, J.W. Barnes, S.P. Dokov, R. Acevedo
2003 Applied Mathematics Letters  
It is shown that the TSP on a weakly symmetric graph joined with each of a number of well-known local search neighbourhoods yields elementary landscapes (in which local minima are better than the average  ...  In conclusion, an O(n 2) algorithm for identifying weakly symmetric graphs is described. ~)  ...  For each type, we may state results on the 'smoothness' of the landscape and on the number of steps in a local search for a better than average solution.  ... 
doi:10.1016/s0893-9659(03)80064-2 fatcat:jpm4skkdtvhjleu7dnc62yzl3a

Finding a second Hamiltonian decomposition of a 4-regular multigraph by integer linear programming [article]

Andrei V. Nikolaev, Egor V. Klimov
2022 arXiv   pre-print
This problem arises in polyhedral combinatorics as a sufficient condition for non-adjacency in the 1-skeleton of the travelling salesperson polytope.  ...  A Hamiltonian decomposition of a regular graph is a partition of its edge set into Hamiltonian cycles.  ...  An example of a satisfied sufficient condition is shown in Fig. 1 . We formulate the sufficient condition for vertex non-adjacency of the travelling salesperson polytope as a combinatorial problem.  ... 
arXiv:2201.03846v1 fatcat:3denxy42rrerxp77imksn5ukn4

El ecodiseño y planeamiento de barrios sostenibles: el caso de estudio de Vallbona (Barcelona)
The ecodesign and planning of sustainable neighbourhoods: the Vallbona case study (Barcelona)

R. Farreny, J. Oliver-Solà, M. Montlleó, E. Escribà, X. Gabarrell, J. Rieradevall
2011 Informes de la Construccion  
Finally, we are grateful for the comments of an anonymous reviewer.  ...  The ecodesign and planning of sustainable neighbourhoods: the Vallbona case study (Barcelona) El ecodiseño y planeamiento de barrios sostenibles: el caso de estudio de Vallbona (Barcelona)  ...  Besides this, the local context and given conditions are determinant for the successful achievement of the proposed goals.  ... 
doi:10.3989/ic.11.069 fatcat:ee7lloxtpvdkroq46g4mhdaeqm

Built Environment, Travel Attitudes and Travel Behaviour: Quasi-Longitudinal Analysis of Links in the Case of Greeks Relocating from US to Greece

Dimitris Milakis, Dimitrios Efthymiou, Constantinos Antoniou
2017 Sustainability  
For instance, longer travel time to city center was associated with higher car use, higher density neighbourhoods and increased accessibility to local amenities were associated with increased bike use  ...  A quasi-longitudinal design was developed to collect data about the perceived neighbourhood characteristics, neighbourhood preferences, travel attitudes and changes in car, walking and bicycle usage of  ...  Acknowledgments: The authors are grateful to the participants of this survey for sharing their experiences with changes in their mobility behaviour after relocation from the US to Greece.  ... 
doi:10.3390/su9101774 fatcat:4hkdg25pfrf3zg6dfae6pymsuu

Association between parental perceptions of residential neighbourhood environments and childhood obesity in Porto, Portugal

M. M. Ferrao, A. Gama, V. R. Marques, L. L. Mendes, I. Mourao, H. Nogueira, G. Velasquez-Melendez, C. Padez
2013 European Journal of Public Health  
Conclusion: Parental perceptions of neighbourhood safety and the quality of local sidewalks are significantly associated with obesity values.  ...  -0.90) and when local sidewalks were well maintained and unobstructed (OR = 1.18, 95% CI = 1.01-1.40).  ...  This study stresses the need for increased and effective cooperation between urban planning and health.  ... 
doi:10.1093/eurpub/cks187 pmid:23325125 fatcat:tpuydkt6yrhrplync6jrgwnyyq

Minimally locally 1-connected graphs

K.H. Kulkarni
1978 Bulletin of the Australian Mathematical Society  
A necessary and sufficient condition for a locally connected graph to be minimally locally 1-connected is given, and i t is shown that for 2 n 2 7 , C is minimally locally 1-connected. .  ...  For a vertex V of a graph G , let N(v) denote the set of a l l vertices of G adjacent with v . The neighbourhood of v , denoted by G(v) , is the subgraph of G induced by /l/(u) .  ...  In this paper a necessary and sufficient condition for a locally connected graph to be minimally 2 locally 1-connected is given and i t is shown that for n t 1 , C is minimally locally 1-connected. 2.  ... 
doi:10.1017/s0004972700008467 fatcat:v27kefa34bb35cvmcgjam47dky

Attractors in complex networks

Alexandre A. P. Rodrigues
2017 Chaos  
corresponding to the most positive expanding eigenvalues form a part of an attractor (observable in numerical simulations).  ...  We prove that, generically, in an attracting heteroclinic network involving a finite number of hyperbolic and non-resonant saddle-equilibria whose linearization has only real eigenvalues, the connections  ...  Also special thanks to Alexander Lohse, Michael Field, Pedro Duarte, José Pedro Gaivão and Telmo Peixe for the fruitful discussions.  ... 
doi:10.1063/1.4996883 pmid:29092414 fatcat:7lujzg6jtvgtrp7zmrfmyr42iu

Universal reparametrization of a family of cycles : a new approach to meromorphic equivalence relations

David Mathieu
2000 Annales de l'Institut Fourier  
Suppose that thé following conditions hold: For every SQ e 5', there exist a compact set LQ of Z and a relatively compact neighbourhood SQ of SQ in S such that, for every s e 6'o, and for every cycle X  ...  It remains to show that thé continuous family of cycles (X} Ĵ satisfies condition 2): for a point SQ G S, consider thé neighbourhood 5' o of SQ := a(so) and thé compact set LQ of Z given by condition 2  ... 
doi:10.5802/aif.1788 fatcat:komrr3gznbatvguet4lkqa2ste

On Infinite Cycles I

Reinhard Diestel, Daniela K�hn
2004 Combinatorica  
We adapt the cycle space of a finite graph to locally finite infinite graphs, using as infinite cycles the homeomorphic images of the unit circle S 1 in the graph compactified by its ends.  ...  We also generalize Euler's theorem by showing that a locally finite connected graph with ends contains a closed topological curve traversing every edge exactly once if and only if its entire edge set lies  ...  Conditions So we are looking for a locally finite graph G with a topology that satisfies (1) and (2) but is incomparable with Top.  ... 
doi:10.1007/s00493-004-0005-z fatcat:ldwv3oyp7fe7rjxdhhjitig2pe

How does the individual perception of local conditions affect cycling? An analysis of the impact of built and non-built environment factors on cycling behaviour and attitudes in an urban setting

Andreas Blitz
2021 Travel Behaviour & Society  
The impact of local environment characteristics on individual cycling behaviour has been discussed in transport research for several years.  ...  for a more comprehensive view.  ...  Furthermore, I would like to thank Martin Lanzendorf for his support as well as Franziska Kirschner, Annika Busch-Geertsema and Alison Hindley Chatterjee for their helpful feedback.  ... 
doi:10.1016/j.tbs.2021.05.006 fatcat:in4tibhijjhyndtld4q3gzkajm

RESIDENTS' PERSPECTIVE ON CYCLING AS AN OPTION FOR TRANSPORTATION IN PUTRAJAYA

Siti Fatimah Hashim, Habsah Hashim, Kamarul Bahrain Shuib
2017 PLANNING MALAYSIA JOURNAL  
It was found that respondents were aware of the benefits of cycling but hesitant to adopt cycling as mode of transportation for their daily trips.  ...  towards greener cities and more sustainable urban neighbourhoods.  ...  for a greener future city especially in neighbourhoods experiencing constant traffic congestions.  ... 
doi:10.21837/pmjournal.v16.i6.271 fatcat:s2wwq6zc25hanp4cjqbvgw7xfe

TOWARDS A FRAMEWORK FOR INTUITIVE PROGRAMMING OF CELLULAR AUTOMATA

SAMI TORBEY
2009 Parallel Processing Letters  
The ability to obtain complex global behaviour from simple local rules makes cellular automata an interesting platform for massively parallel computation.  ...  the simplicity of local processing elements.  ...  For example, if a non-local automaton with a neighbourhood size of 5 is expected to converge in 3 cycles, the neighbourhood size of the local automaton should be 15.  ... 
doi:10.1142/s0129626409000079 fatcat:i4pmb7td5vekxjv3r3ngavt62q

Is there switching without suspended horseshoes? [article]

Alexandre Rodrigues
2015 arXiv   pre-print
Thus we provide an example of an asymptotically stable network exhibiting sensitive dependence on initial conditions.  ...  In this note, revisiting the equivariant Shilnikov scenario, we describe an attracting homoclinic network exhibiting forward switching and without suspended horseshoes in its neighbourhood.  ...  In this case, the network consists of two cycles and trajectories are allowed to change from a neighbourhood of one cycle to a neighbourhood of the other cycle.  ... 
arXiv:1511.08643v1 fatcat:hilothv5qzgnvdfihalp4q25mi
« Previous Showing results 1 — 15 out of 67,758 results