Results 31 to 40 of about 123,647 (205)

Regular tessellation of the Lobachevskii plane

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2019
This paper discusses a new algorithm for construction of regular tessellation of the Lobachevskii plane. The problems of combinatorial and topological arrangement of regular tessellations, finding the number of tiles in each layer of such tessellation ...
P.I. Troshin
doaj   +1 more source

CPAM: Cross Patch Attention Module for Complex Texture Tile Block Defect Detection

open access: yesApplied Sciences, 2022
Due to the little variation in defect points, tile block defect detection typically detects subtle defects in large-format images, allowing defective characteristics to be displayed regionally.
Wenbo Zhu   +6 more
doaj   +1 more source

Periodicity in Tilings [PDF]

open access: yes, 2010
Tilings and tiling systems are an abstract concept that arise both as a computational model and as a dynamical system. In this paper, we characterize the sets of periods that a tiling system can produce. We prove that up to a slight recoding, they correspond exactly to languages in the complexity classes $\nspace{n}$ and $\cne$.
Jeandel, Emmanuel, Vanier, Pascal
openaire   +4 more sources

Tilings in graphons [PDF]

open access: yesEuropean Journal of Combinatorics, 2021
25 pages, 5 figures; to appear in European Journal of ...
Jan Hladký, Ping Hu, Diana Piguet
openaire   +3 more sources

Open Ended Systems, Dynamic Bisimulation, and Tile Logic

open access: yes, 2000
The SOS formats ensuring that bisimilarity is a congruence often fail in the presence of structural axioms on the algebra of states. Dynamic bisimulation, introduced to characterize the coarsest congruence for CCS which is also a (weak) bisimulation ...
Bruni, R., Montanari, U., Sassone, V.
core   +2 more sources

Emergency supplies purchase patterns during COVID-19 outbreak in the developing economy: frequency and stockpiling drivers’ assessment [PDF]

open access: yesJournal of Humanitarian Logistics and Supply Chain Management, 2022
Purpose – The purpose of the paper is to assess the roots of stockpiling behaviors and to give a quantitative assessment of shopping frequency changes for emergency supplies during the coronavirus disease 2019 (COVID-19) pandemic.
Alexander Rossolov   +2 more
doaj   +1 more source

Ranked Tiling [PDF]

open access: yes, 2014
Tiling is a well-known pattern mining technique. Traditionally, it discovers large areas of ones in binary databases or matrices, where an area is defined by a set of rows and a set of columns. In this paper, we introduce the novel problem of ranked tiling, which is concerned with finding interesting areas in ranked data. In this data, each transaction
Le Van, Thanh   +5 more
openaire   +3 more sources

Study Flower and vase motifs in Tile work of historical baths [PDF]

open access: yesJilvah-i hunar, 2019
The design of abstract vases with Khatai flowers (One of the major schemes and contractual Decorative Arts of Iran that is used gilding carpet and tile, and it is the horn chart layout, tree or shrub with flowers and leaves and buds), in Safavid period ...
J. Mansoori Jezabadi
doaj   +1 more source

Finding minimum spanning trees more efficiently for tile-based phase unwrapping. [PDF]

open access: yes, 2006
The tile-based phase unwrapping method employs an algorithm for finding the minimum spanning tree (MST) in each tile. We first examine the properties of a tile's representation from a graph theory viewpoint, observing that it is possible to make use of a
Al-Sawaf, Firas, Tatam, Ralph P.
core   +1 more source

Le Massif central, approche iconographique et archéologique. Une mise au point à propos des couvertures médiévales

open access: yesArchéologie Médiévale
In the absence of significant excavations, the roofing materials remain poorly known in the Massif Central. Textual sources, such as iconographic images, partly answer the questions, as do the many surveys, and chance discoveries.
Bruno Phalip
doaj   +1 more source

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