Relevant bibliographies by topics / Pattern posets

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Pattern posets'

Author: Grafiati
Published: 25 June 2021
Last updated: 11 March 2023

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Journal articles on the topic "Pattern posets"

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Bernini, Antonio, and Luca Ferrari. "Vincular Pattern Posets and the Möbius Function of the Quasi-Consecutive Pattern Poset." Annals of Combinatorics 21, no. 4 (August 21, 2017): 519–34. http://dx.doi.org/10.1007/s00026-017-0364-y.

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Anderson, David, Eric S. Egge, Manda Riehl, Lucas Ryan, Ruth Steinke, and Yuriko Vaughan. "Pattern avoiding linear extensions of rectangular posets." Journal of Combinatorics 9, no. 1 (2018): 185–220. http://dx.doi.org/10.4310/joc.2018.v9.n1.a9.

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Yakoubov, Sophia. "Pattern avoidance in extensions of comb-like posets." Journal of Combinatorics 6, no. 1–2 (2015): 249–72. http://dx.doi.org/10.4310/joc.2015.v6.n1.a13.

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Bousquet-Mélou, Mireille, Anders Claesson, Mark Dukes, and Sergey Kitaev. "(2+2)-free posets, ascent sequences and pattern avoiding permutations." Journal of Combinatorial Theory, Series A 117, no. 7 (October 2010): 884–909. http://dx.doi.org/10.1016/j.jcta.2009.12.007.

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Dukes, Mark, and Peter R. W. McNamara. "Refining the bijections among ascent sequences, (2+2)-free posets, integer matrices and pattern-avoiding permutations." Journal of Combinatorial Theory, Series A 167 (October 2019): 403–30. http://dx.doi.org/10.1016/j.jcta.2019.05.007.

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Mansour, Toufik, and Mark Shattuck. "Ascent sequences and Fibonacci numbers." Filomat 29, no. 4 (2015): 703–12. http://dx.doi.org/10.2298/fil1504703m.

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An ascent sequence is one consisting of non-negative integers in which the size of each letter is restricted by the number of ascents preceding it in the sequence. Ascent sequences have recently been shown to be related to (2+2)-free posets and a variety of other combinatorial structures. Let Fn denote the Fibonacci sequence given by the recurrence Fn = Fn-1 + Fn-2 if n ? 2, with F0 = 0 and F1 = 1. In this paper, we draw connections between ascent sequences and the Fibonacci numbers by showing that several pattern-avoidance classes of ascent sequences are enumerated by either Fn+1 or F2n-1. We make use of both algebraic and combinatorial methods to establish our results. In one of the apparently more difficult cases, we make use of the kernel method to solve a functional equation and thus determine the distribution of some statistics on the avoidance class in question. In two other cases, we adapt the scanning-elements algorithm, a technique which has been used in the enumeration of certain classes of pattern-avoiding permutations, to the comparable problem concerning pattern-avoiding ascent sequences.
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Farris, James S. "Pattern poses." Cladistics 30, no. 2 (June 11, 2013): 116–19. http://dx.doi.org/10.1111/cla.12034.

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Bacher, Axel, Antonio Bernini, Luca Ferrari, Benjamin Gunby, Renzo Pinzani, and Julian West. "The Dyck pattern poset." Discrete Mathematics 321 (April 2014): 12–23. http://dx.doi.org/10.1016/j.disc.2013.12.011.

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Hopkins, Sam, and Morgan Weiler. "Pattern Avoidance in Poset Permutations." Order 33, no. 2 (August 13, 2015): 299–310. http://dx.doi.org/10.1007/s11083-015-9367-7.

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Pereira, Renata, Rodrigo Barros Esteves Lins, Victória Castelan Rodrigues, Débora Alves Nunes Leite Lima, Luís Roberto Marcondes Martins, and Flávio Henrique Baggio Aguiar. "Glass fiber posts." Brazilian Journal of Oral Sciences 19 (May 18, 2020): e207508. http://dx.doi.org/10.20396/bjos.v19i0.8657508.

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Aim: Glass fiber posts are indicated in the rehabilitation of extensively damaged teeth; their cementation represents a critical step in restorative dentistry. The aim of this study was to quantify and compare the push-out bond strength of glass fiber posts cemented by conventional technique, two-step technique with luting agent and two-step technique associating bulk-fill composite and luting agent. Methods: Eighty maxillary bovine incisors were endodontically treated and divided into eight groups (n = 10) according to the luting agent (Rely X ARC and Duo-link) and cementation technique (conventional technique; two-step technique with luting agent; and two-step technique associating bulk-fill composite – Filtek Bulk-fill flow or Surefil SDR flow – and luting agent). Samples were submitted to pushout bond strength test, and the fracture pattern was evaluated through scanning electron microscope. Data were submitted to two-way ANOVA and Tukey’s test (α = 0.05). Results: When Rely X ARC was used, the conventional cementation technique obtained higher bond strength values than the twostep technique associated with Filtek Bulk-fill flow. When Duolink was used, the two-step technique associated with Filtek Bulk-fill flow presented higher bond strength values than the conventional technique. The most prevalent fracture patterns were adhesive between luting agent and dentin, and adhesive between bulk-fill composite and dentin. Conclusion: Two-step cementation technique associated with bulk-fill composite may be promising depending on the luting agent used.
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Dissertations / Theses on the topic "Pattern posets"

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Cervetti, Matteo. "Pattern posets: enumerative, algebraic and algorithmic issues." Doctoral thesis, Università degli studi di Trento, 2003. http://hdl.handle.net/11572/311140.

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The study of patterns in combinatorial structures has grown up in the past few decades to one of the most active trends of research in combinatorics. Historically, the study of permutations which are constrained by not containing subsequences ordered in various prescribed ways has been motivated by the problem of sorting permutations with certain devices. However, the richness of this notion became especially evident from its plentiful appearances in several very different disciplines, such as pure mathematics, mathematical physics, computer science, biology, and many others. In the last decades, similar notions of patterns have been considered on discrete structures other than permutations, such as integer sequences, lattice paths, graphs, matchings and set partitions. In the first part of this talk I will introduce the general framework of pattern posets and some classical problems about patterns. In the second part of this talk I will present some enumerative results obtained in my PhD thesis about patterns in permutations, lattice paths and matchings. In particular I will describe a generating tree with a single label for permutations avoiding the vincular pattern 1 - 32 - 4, a finite automata approach to enumerate lattice excursions avoiding a single pattern and some results about matchings avoiding juxtapositions and liftings of patterns.
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Cervetti, Matteo. "Pattern posets: enumerative, algebraic and algorithmic issues." Doctoral thesis, Università degli studi di Trento, 2021. http://hdl.handle.net/11572/311152.

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The study of patterns in combinatorial structures has grown up in the past few decades to one of the most active trends of research in combinatorics. Historically, the study of permutations which are constrained by not containing subsequences ordered in various prescribed ways has been motivated by the problem of sorting permutations with certain devices. However, the richness of this notion became especially evident from its plentiful appearances in several very different disciplines, such as pure mathematics, mathematical physics, computer science,biology, and many others. In the last decades, similar notions of patterns have been considered on discrete structures other than permutations, such as integer sequences, lattice paths, graphs, matchings and set partitions. In the first part of this talk I will introduce the general framework of pattern posets and some classical problems about patterns. In the second part of this talk I will present some enumerative results obtained in my PhD thesis about patterns in permutations, lattice paths and matchings. In particular I will describe a generating tree with a single label for permutations avoiding the vincular pattern 1 - 32 - 4, a finite automata approach to enumerate lattice excursions avoiding a single pattern and some results about matchings avoiding juxtapositions and liftings of patterns.
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Cervetti, Matteo. "Pattern posets: enumerative, algebraic and algorithmic issues." Doctoral thesis, Università degli studi di Trento, 2021. http://hdl.handle.net/11572/311152.

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The study of patterns in combinatorial structures has grown up in the past few decades to one of the most active trends of research in combinatorics. Historically, the study of permutations which are constrained by not containing subsequences ordered in various prescribed ways has been motivated by the problem of sorting permutations with certain devices. However, the richness of this notion became especially evident from its plentiful appearances in several very different disciplines, such as pure mathematics, mathematical physics, computer science, biology, and many others. In the last decades, similar notions of patterns have been considered on discrete structures other than permutations, such as integer sequences, lattice paths, graphs, matchings and set partitions. In the first part of this talk I will introduce the general framework of pattern posets and some classical problems about patterns. In the second part of this talk I will present some enumerative results obtained in my PhD thesis about patterns in permutations, lattice paths and matchings. In particular I will describe a generating tree with a single label for permutations avoiding the vincular pattern 1 - 32 - 4, a finite automata approach to enumerate lattice excursions avoiding a single pattern and some results about matchings avoiding juxtapositions and liftings of patterns.
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Jung, JiYoon. "ANALYTIC AND TOPOLOGICAL COMBINATORICS OF PARTITION POSETS AND PERMUTATIONS." UKnowledge, 2012. http://uknowledge.uky.edu/math_etds/6.

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In this dissertation we first study partition posets and their topology. For each composition c we show that the order complex of the poset of pointed set partitions is a wedge of spheres of the same dimension with the multiplicity given by the number of permutations with descent composition c. Furthermore, the action of the symmetric group on the top homology is isomorphic to the Specht module of a border strip associated to the composition. We also study the filter of pointed set partitions generated by knapsack integer partitions. In the second half of this dissertation we study descent avoidance in permutations. We extend the notion of consecutive pattern avoidance to considering sums over all permutations where each term is a product of weights depending on each consecutive pattern of a fixed length. We study the problem of finding the asymptotics of these sums. Our technique is to extend the spectral method of Ehrenborg, Kitaev and Perry. When the weight depends on the descent pattern, we show how to find the equation determining the spectrum. We give two length 4 applications, and a weighted pattern of length 3 where the associated operator only has one non-zero eigenvalue. Using generating functions we show that the error term in the asymptotic expression is the smallest possible.
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Hainzl, Sebastian, Frank Scherbaum, and Gert Zöller. "Spatiotemporal earthquake patterns : [Poster]." Universität Potsdam, 2006. http://www.uni-potsdam.de/imaf/events/ge_work0602.html.

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Kuhnert, Matthias, Andreas Güntner, Mechthild Klann, Garrido F. Martin, and Birgit Zillgens. "Methods for spatial pattern comparison in distributed hydrological modelling : [Poster]." Universität Potsdam, 2006. http://www.uni-potsdam.de/imaf/events/ge_work0602.html.

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The rigorous development, application and validation of distributed hydrological models obligates to evaluate data in a spatially distributed way. In particular, spatial model predictions such as the distribution of soil moisture, runoff generating areas or nutrient-contributing areas or erosion rates, are to be assessed against spatially distributed observations. Also model inputs, such as the distribution of modelling units derived by GIS and remote sensing analyses, should be evaluated against groundbased observations of landscape characteristics. So far, however, quantitative methods of spatial field comparison have rarely been used in hydrology.

In this paper, we present algorithms that allow to compare observed and simulated spatial hydrological data. The methods can be applied for binary and categorical data on regular grids. They comprise cell-by-cell algorithms, cell-neighbourhood approaches that account for fuzziness of location, and multi-scale algorithms that evaluate the similarity of spatial fields with changing resolution. All methods provide a quantitative measure of the similarity of two maps.

The comparison methods are applied in two mountainous catchments in southern Germany (Brugga, 40 km2) and Austria (Löhnersbach, 16 km2). As an example of binary hydrological data, the distribution of saturated areas is analyzed in both catchments. For categorical data, vegetation zones that are associated with different runoff generation mechanisms are analyzed in the Löhnersbach. Mapped spatial patterns are compared to simulated patterns from terrain index calculations and from satellite image analysis. It is discussed how particular features of visual similarity between the spatial fields are captured by the quantitative measures, leading to recommendations on suitable algorithms in the context of evaluating distributed hydrological models.


Interdisziplinäres Zentrum für Musterdynamik und Angewandte Fernerkundung
Workshop vom 9. - 10. Februar 2006
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Riedel, Michael R., Martin A. Ziemann, and Roland Oberhänsli. "Pattern dynamics applied to the kinetics of mineral phase transformations : [Poster]." Universität Potsdam, 2006. http://www.uni-potsdam.de/imaf/events/ge_work0602.html.

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Doktor, Daniel, Franz-W. Badeck, Alberte Bondeau, Dirk Koslowsky, Jörg Schaber, and Murdock McAllister. "Using satellite imagery and ground observations to quantify the effect of intra-annually changing temperature patterns on spring time phenology : [Poster]." Universität Potsdam, 2006. http://www.uni-potsdam.de/imaf/events/ge_work0602.html.

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Torreglosa, Camila Ragne. "Padrões alimentares e fatores de risco em indivíduos com doença cardiovascular." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/89/89131/tde-23022015-162319/.

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As doenças cardiovasculares (DCV) representam a principal causa de mortalidade e de incapacidade, em ambos os gêneros, no Brasil e no mundo. O padrão de consumo alimentar está tanto positiva como negativamente associado aos principais fatores de risco para DCV, entre eles diabetes, hipertensão, obesidade e hipertrigliceridemia, todos componentes da síndrome metabólica. Este estudo tem como objetivos identificar os padrões alimentares em indivíduos com DCV, considerando a densidade de energia, a gordura saturada, a fibra, o sódio e o potássio consumidos, e investigar sua associação com fatores de risco de DCV e síndrome metabólica. Trata-se de um estudo transversal. Foram utilizados dados do estudo DICA Br. A amostra foi composta de indivíduos com DCV, com idade superior a 45 anos, de todas as regiões brasileiras. O consumo alimentar foi obtido por recordatório alimentar de 24h e os padrões alimentares obtidos pela regressão por posto reduzido (RPR). Para a RPR, utilizaram-se 28 grupos alimentares como preditores e como variáveis respostas componentes dietéticos. O teste de Mann Whitney foi utilizado para testar as diferenças entre as médias dos escores. Foram obtidos dados de 1.047 participantes; 95% apresentavam doença arterial coronariana; em sua maioria, eram idosos, da classe econômica C1 e C2 e estudaram até o ensino médio. A prevalência de síndrome metabólica foi de 58%. Foram extraídos dois padrões alimentares. O primeiro foi marcado pelo maior consumo de fibra alimentar e potássio, composto por arroz e feijão, frutas e sucos naturais com ou sem açúcar, legumes, carne bovina ou processada, verduras, raízes e tubérculos. O segundo padrão caracterizou-se pelo consumo de gordura saturada e maior densidade energética, representado por panificados salgados, gorduras, carne bovina e processada, doces caseiros, pizza, salgadinhos de pacote ou festa, sanduíche e alimento salgado pronto para consumo. Houve associação significativa entre o padrão alimentar 1 com medida da circunferência da cintura e nível de HDL adequados e com o padrão 2 e HDL adequado. A adoção do padrão alimentar 1 pode estar associada à proteção contra alguns dos componentes da síndrome metabólica.
Cardiovascular diseases (CVD) are the leading cause of mortality and disability in both genders in Brazil and worldwide. The dietary pattern is at the same time positive and negatively associated with the main risk factors for CVD, including diabetes, hypertension, obesity and hypertriglyceridemia, all components of the metabolic syndrome. This study aims to identify dietary patterns in individuals with CVD, considering the energy density, and the amount of saturated fatty acid, fiber, sodium and potassium of the diet, and to investigate its association with CVD risk factors and metabolic syndrome. This is a cross-sectional study, data were used from \"DICA Br\" study. The sample consisted of individuals with CVD, over 45 years old, residents from all Brazilian regions. Food consumption was obtained by one 24-hours diet recall and dietary patterns by reduced rank regression (RRR). In the RRR, 28 food groups were included as predictors and dietary components was chosen as the response variable. The Mann-Whitney test was used to test the differences between the factors scores\' means. Data of 1047 participants were analyzed. 95% have coronary artery disease, most are elderly, economical class most observed are C1 and C2. Also, most of them and studied up to high school. The prevalence of metabolic syndrome was 58%. Two dietary patterns were extracted: the first one is higher in dietary fiber and potassium, which is composed by rice, beans, fruits and natural juices with or without sugar, vegetables, beef or processed meat, roots and tubers. The second pattern is higher in saturated fatty acid and energy density, represented by breads, fats, and processed meat, homemade pastries, pizza, snacks or party package, sandwich and salty food ready for consumption. There was a significant association between dietary pattern 1 and low waist circumference and adequate high density cholesterol blood concentration. There was a significant association between dietary pattern 2 and adequate high density cholesterol blood concentration. We suggest that the adoption of the dietary pattern 1 may be associated with protection against some of the components of metabolic syndrome.
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Alberts, Stefan Francois. "Real-time Software Hand Pose Recognition using Single View Depth Images." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86442.

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Thesis (MEng)--Stellenbosch University, 2014.
ENGLISH ABSTRACT: The fairly recent introduction of low-cost depth sensors such as Microsoft’s Xbox Kinect has encouraged a large amount of research on the use of depth sensors for many common Computer Vision problems. Depth images are advantageous over normal colour images because of how easily objects in a scene can be segregated in real-time. Microsoft used the depth images from the Kinect to successfully separate multiple users and track various larger body joints, but has difficulty tracking smaller joints such as those of the fingers. This is a result of the low resolution and noisy nature of the depth images produced by the Kinect. The objective of this project is to use the depth images produced by the Kinect to remotely track the user’s hands and to recognise the static hand poses in real-time. Such a system would make it possible to control an electronic device from a distance without the use of a remote control. It can be used to control computer systems during computer aided presentations, translate sign language and to provide more hygienic control devices in clean rooms such as operating theatres and electronic laboratories. The proposed system uses the open-source OpenNI framework to retrieve the depth images from the Kinect and to track the user’s hands. Random Decision Forests are trained using computer generated depth images of various hand poses and used to classify the hand regions from a depth image. The region images are processed using a Mean-Shift based joint estimator to find the 3D joint coordinates. These coordinates are finally used to classify the static hand pose using a Support Vector Machine trained using the libSVM library. The system achieves a final accuracy of 95.61% when tested against synthetic data and 81.35% when tested against real world data.
AFRIKAANSE OPSOMMING: Die onlangse bekendstelling van lae-koste diepte sensors soos Microsoft se Xbox Kinect het groot belangstelling opgewek in navorsing oor die gebruik van die diepte sensors vir algemene Rekenaarvisie probleme. Diepte beelde maak dit baie eenvoudig om intyds verskillende voorwerpe in ’n toneel van mekaar te skei. Microsoft het diepte beelde van die Kinect gebruik om verskeie persone en hul ledemate suksesvol te volg. Dit kan egter nie kleiner ledemate soos die vingers volg nie as gevolg van die lae resolusie en voorkoms van geraas in die beelde. Die doel van hierdie projek is om die diepte beelde (verkry vanaf die Kinect) te gebruik om intyds ’n gebruiker se hande te volg oor ’n afstand en die statiese handgebare te herken. So ’n stelsel sal dit moontlik maak om elektroniese toestelle oor ’n afstand te kan beheer sonder die gebruik van ’n afstandsbeheerder. Dit kan gebruik word om rekenaarstelsels te beheer gedurende rekenaargesteunde aanbiedings, vir die vertaling van vingertaal en kan ook gebruik word as higiëniese, tasvrye beheer toestelle in skoonkamers soos operasieteaters en elektroniese laboratoriums. Die voorgestelde stelsel maak gebruik van die oopbron OpenNI raamwerk om die diepte beelde vanaf die Kinect te lees en die gebruiker se hande te volg. Lukrake Besluitnemingswoude ("Random Decision Forests") is opgelei met behulp van rekenaar gegenereerde diepte beelde van verskeie handgebare en word gebruik om die verskeie handdele vanaf ’n diepte beeld te klassifiseer. Die 3D koördinate van die hand ledemate word dan verkry deur gebruik te maak van ’n Gemiddelde-Afset gebaseerde ledemaat herkenner. Hierdie koördinate word dan gebruik om die statiese handgebaar te klassifiseer met behulp van ’n Steun-Vektor Masjien ("Support Vector Machine"), opgelei met behulp van die libSVM biblioteek. Die stelsel behaal ’n finale akkuraatheid van 95.61% wanneer dit getoets word teen sintetiese data en 81.35% wanneer getoets word teen werklike data.
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Books on the topic "Pattern posets"

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Melo, Martha De. From plan to market: Patterns of transition. Washington, DC: World Bank, Policy Research Dept., Transition Economics Division, 1996.

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Post, Laurens Van der. About Blady: A pattern out of time. San Diego, CA: Harcourt Brace Jovanovich, Publishers, 1993.

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1943-, Thorn Lawry, ed. The Stitchin' Post, Sisters, Oregon, USA. Bothell, WA: That Patchwork Place, 1993.

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Patterns of political elite recruitment in post-communist Romania. București: Ziua, 2004.

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Matějů, Petr. Revolution for whom?: Analysis of selected patterns of intragenerational mobility in the Czech Republic, 1989-1992. Prague: Institute of Sociology, Academy of Sciences of the Czech Republic, 1993.

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Cahill, Kevin E. Employment patterns and determinants among older individuals with a history of short-duration jobs. Washington, D.C.]: U.S. Dept. of Labor, U.S. Bureau of Labor Statistics, Office of Productivity and Technology, 2010.

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The weight of historical patterns, collective memory and historical legacies over the evolution of the Romanian democratization process. Iasi̦: Lumen, 2006.

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M, Słomczyński Kazimierz, ed. Social patterns of being political: The initial phase of the post-communist transition in Poland. Warsaw: IFiS Publishers, 2000.

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On Baltic Slovenia and Adriatic Lithuania: A qualitative comparative analysis of patterns in post-communist transformation. Budapest: Apostrofa Publishers, 2012.

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W, Carter Francis, Jordan Peter 1949-, and Rey Violette, eds. Central Europe after the fall of the Iron Curtain: Geopolitical perspectives, spatial patterns, and trends. 2nd ed. Frankfurt am Main: Lang, 1998.

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Book chapters on the topic "Pattern posets"

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Martín-Félez, Raúl, Ramón A. Mollineda, and Javier Salvador Sánchez. "Human Recognition Based on Gait Poses." In Pattern Recognition and Image Analysis, 347–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21257-4_43.

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Cioni, Lapo, and Luca Ferrari. "Enumerative Results on the Schröder Pattern Poset." In Cellular Automata and Discrete Complex Systems, 56–67. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-58631-1_5.

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Alonso-Fernandez, Fernando, Javier Barrachina, Kevin Hernandez-Diaz, and Josef Bigun. "SqueezeFacePoseNet: Lightweight Face Verification Across Different Poses for Mobile Platforms." In Pattern Recognition. ICPR International Workshops and Challenges, 139–53. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68793-9_10.

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Papadopoulos, Konstantinos, Enjie Ghorbel, Renato Baptista, Djamila Aouada, and Björn Ottersten. "Two-Stage RGB-Based Action Detection Using Augmented 3D Poses." In Computer Analysis of Images and Patterns, 26–35. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29888-3_3.

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Roth, K. A., J. Ritter, and G. Mazoujian. "Central and Peripheral Bronchial Carcinoids Possess Distinct Peptide Immunostaining Patterns." In Progress in Surgical Pathology, 241–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/978-3-662-09515-7_10.

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Goldenfeld, Nigel. "Introduction to Pattern Selection in Dendritic Solidification." In Metastability and Incompletely Posed Problems, 103–33. New York, NY: Springer New York, 1987. http://dx.doi.org/10.1007/978-1-4613-8704-6_8.

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Cho, Woon Jung, Jin-Hee Yang, Hannah Kim, Dong-Hyun Kang, Min Sun Kim, Ja Hyung Lee, Yong-Jun Kim, Joo-Hyeon Lee, and Kwang-Hee Han. "CamouFAB: Real-Time Generation of Camouflage Pattern Using Optic Fiber Display." In HCI International 2014 - Posters’ Extended Abstracts, 570–73. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07857-1_100.

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Jing, Hung-Sying. "On Two Types of Thinking Patterns in Aviation Safety." In HCI International 2019 – Late Breaking Posters, 103–7. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30712-7_13.

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Kang, Namgyu, and Ryosuke Sato. "Proposal for an Affective Skateboard Using Various Lighting Patterns." In HCI International 2018 – Posters' Extended Abstracts, 402–11. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92279-9_54.

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Gitahi, Joseph, and Michael Hahn. "Evaluation of Crowd-Sourced PM2.5 Measurements from Low-Cost Sensors for Air Quality Mapping in Stuttgart City." In iCity. Transformative Research for the Livable, Intelligent, and Sustainable City, 225–40. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92096-8_14.

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AbstractExposure to particulate matter (PM) pollution poses a major risk to the environment and human health. Monitoring PM pollution is thus crucial to understand particle distribution and mitigation. There has been rapid development of low-cost PM sensors and advancement in the field of Internet of Things (IoT) that has led to the deployment of the sensors by technology-aware people in cities. In this study, we evaluate the stability and accuracy of PM measurements from low-cost sensors crowd-sourced from a citizen science project in Stuttgart. Long-term measurements from the sensors show a strong correlation with measurements from reference stations with most of the selected sensors achieving Pearson correlation coefficients of r > 0.7. We investigate the stability of the sensors for reproducibility of measurements using five sensors installed at different height levels and horizontal distances. They exhibit minor variations with low correlation of variation (CV) values of between 10 and 14%. A CV of ≤10% is recommended for low-cost sensors. In a dense network, the sensors enable extraction pollution patterns and trends. We analyse PM measurements from 2 years using space-time pattern analysis and generate two clusters of sensors that have similar trends. The clustering shows the relationship between traffic and pollution with most sensors near major roads being in the same cluster.
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Conference papers on the topic "Pattern posets"

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Mickelson, Jason, Matthew Canton, and Wendy Ju. "Pattern poses." In the 10th International Conference. New York, New York, USA: ACM Press, 2011. http://dx.doi.org/10.1145/1999030.1999072.

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Sun, Xiaochuan, and Shahram Payandeh. "Estimation of Incision Patterns Based on Visual Tracking of Surgical Tools in Minimally Invasive Surgery." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-37827.

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In minimally invasive surgery, the positions of surgical tools are important in multiple instruments set-up and procedures. Typically, each surgery requires 4–5 incision holes and for each specific procedure, the layout of points defines specific pattern. Taking advantage of this possible one-to-one relationship between a specific procedure in minimally invasive surgery and the incision patterns, such patterns can be utilized in tele-monitoring of trainee during an emulated surgical operation. For example, in performance evaluation of trainee, this procedure would automatically estimate and verify the initial incision pattern to that of the predefined expected template associated with a particular surgical procedure. In this paper, we propose and analyze two models, based on color and shape respectively, to reconstruct the pattern. Both approaches use image information only to reconstruct the incision patterns in three dimensional space. The challenge of monocular endoscopic view is the lack of depth perception which hindered the vision-based tracking of laparoscopic tools. To address the problem, we present a method to determine not only the spatial tip position of the surgical tools, but also their orientation with respect to the camera coordinate frame. Detailed formulation shows that how segmented tool edges and camera field of view localize the 3D orientations of tools. Then, 3D position of the tool tip is reconstructed using either color or edge detection method. Finally, the orientations and the position of tool tips uniquely determine the poses of the tools. From above procedures, geometrical models of cylindrical tools can be constructed in each sequence of mono-camera images. To further use the tracking result in order to localize the incision point, we computed the vectors of the cylindrical tool center lines at multiple poses at number of frames. Extracted incision point is further analyzed as a recognition pattern to map into the patients’ pre-operative incision procedure. Accuracy of 3D tool pose estimation and incision pattern is evaluated in real image sequences with known ground truth.
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Morimoto, Yuki, and Kenji Ono. "Computer-generated tie-dyeing pattern." In ACM SIGGRAPH ASIA 2009 Posters. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1666778.1666814.

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Schiller, Lars, Duraikannan Maruthavanan, Arthur Seibel, and Josef Schlattmann. "Kit Based Motion Generator for a Soft Walking Robot." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23151.

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Abstract In order to control high-level goals such as walking speed and direction or position of legged robots, a locomotion controller is required. This complicated task can be solved in many different ways. The approach presented here selects the optimal gait pattern from a discrete, predefined set of possibilities to get closer to a given target position. The method is based on an off-line component: elementary gait patterns are generated by trajectory optimization using a simulation model, and an on-line component: for given robot and target positions the optimal next elementary gait pattern is chosen based on a minimization problem, and the joint space references are derived from it. To ensure feasible subsequent poses, the elementary patterns always begin and end with one and the same pose, so that they can be placed on top of each other like Lego bricks. A great advantage of this method is a straightforward transition between different motion modes, such as switching from trotting to crawling. It is discussed how many different elementary patterns are needed to ensure a stable locomotion control. Finally, in simulation and experiment, it is shown that the robot can master any obstacle course using the proposed locomotion controller.
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Igarashi, Yuki, Takeo Igarashi, and Hiromasa Suzuki. "Automatically adding seam allowance to cloth pattern." In ACM SIGGRAPH 2008 posters. New York, New York, USA: ACM Press, 2008. http://dx.doi.org/10.1145/1400885.1400902.

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Crispell, Daniel, and Gabriel Taubin. "Image-based rug patterns." In ACM SIGGRAPH 2005 Posters. New York, New York, USA: ACM Press, 2005. http://dx.doi.org/10.1145/1186954.1187032.

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Tan, Wai Beng, and Tong Ming Lim. "A Critical Review on Engagement Rate and Pattern on Social Media Sites." In International Conference on Digital Transformation and Applications (ICDXA 2020). Tunku Abdul Rahman University College, 2020. http://dx.doi.org/10.56453/icdxa.2020.1002.

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Popular social media sites such as Facebook, Instagram and Twitter have become important tools in fostering relationships between companies and customers. When using social media sites, organisations are often keen to maximise engagements from their target audiences. Companies tend to create posts to which their audience will reply, retweet, comment, share and like. However, different types of contents from posts can impact on three interaction metrics: likes, comments and shares. In this paper, we investigate the factors that characterise the posts with which an audience engages. The results showed that media and content type of posts have a positive significant impact on customer engagement. The study also demonstrated the importance of an active online participation and communication among consumers will ultimately impact their purchase behaviour in reality. Keywords: Social Media Sites, customer engagement, Facebook, content post, media post
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Reynolds, Craig. "Using interactive evolution to discover camouflage patterns." In ACM SIGGRAPH 2010 Posters. New York, New York, USA: ACM Press, 2010. http://dx.doi.org/10.1145/1836845.1836966.

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"Posters." In CVPR '07. IEEE Conference on Computer Vision and Pattern Recognition. IEEE, 2007. http://dx.doi.org/10.1109/cvpr.2007.382950.

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Johzaki, Sawako, Maki Terai, and Reiji Tsuruno. "An interactive design system for creating repetition patterns." In ACM SIGGRAPH 2008 posters. New York, New York, USA: ACM Press, 2008. http://dx.doi.org/10.1145/1400885.1400966.

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Reports on the topic "Pattern posets"

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Jones, Nicole S. 2018 Impression, Pattern and Trace Evidence Symposium. RTI Press, May 2018. http://dx.doi.org/10.3768/rtipress.2018.cp.0006.1805.

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From January 22 to 25, 2018, RTI International, the National Institute of Justice (NIJ) and the Forensic Technology Center of Excellence (FTCoE) held the 2018 Impression, Pattern and Trace Evidence Symposium (IPTES) in Arlington, VA, to promote collaboration, enhance knowledge transfer, and share best practices and policies for the impression, pattern, and trace evidence forensic science communities. NIJ and FTCoE are committed to improving the practice of forensic science and strengthening its impact through support of research and development, rigorous technology evaluation and adoption, effective knowledge transfer and education, and comprehensive dissemination of best practices and guidelines to agencies dedicated to combating crime. The future of forensic sciences and its contribution to the public and criminal justice community is a motivating topic to gather expertise in a forum to discuss, learn, and share ideas. It’s about becoming part of an essential and historic movement as the forensic sciences continue to advance. The IPTES was specifically designed to bring together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities. The IPTES was designed to bring together practitioners and researchers to enhance information sharing and promote collaboration among impression, pattern, and trace evidence analysts, law enforcement, and legal communities. This set of proceedings comprises abstracts from workshops, general sessions, breakout sessions, and poster presentations.
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Philipek, Frances. Post-Mazama aboriginal settlement/subsistence patterns : Upper Klamath Basin, Oregon. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.3217.

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Levitis, Daniel A., and Laurie Bingaman Lackey. Human longevity and post-fertile survival are not predicted by primate allometric patterns. Rostock: Max Planck Institute for Demographic Research, October 2010. http://dx.doi.org/10.4054/mpidr-wp-2010-031.

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Blakeslee, Donald B., Ronald Banks, Vincent D. Eusterman, and Daniel Brooks. Correlation of the Vocal Fold Vibratory Pattern to the Post-Operative Surgical Wound in the Porcine Model. Fort Belvoir, VA: Defense Technical Information Center, February 1992. http://dx.doi.org/10.21236/ada251718.

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Gao, Shan, Laurie M. Apple, Stephanie K. Hubert, and Kathleen R. Smith. Shifting the Basic Pattern Block into a New Framework to Fit the Demands of Post Double Mastectomy Women: Part 2. Ames: Iowa State University, Digital Repository, 2017. http://dx.doi.org/10.31274/itaa_proceedings-180814-334.

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Corbet, T. F. Evolution of patterns of regional groundwater flow in southeastern New Mexico: Response to post-Pleistocene changes in climate. Office of Scientific and Technical Information (OSTI), December 1994. http://dx.doi.org/10.2172/10114250.

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INDASEA INC KULA HAWAII. A Window of Opportunity for Aceh, Indonesia Post-Tsunami: Historic Continuity, Current Points of Interest, and a Pattern. Output of the Cultural Simulation Model. Fort Belvoir, VA: Defense Technical Information Center, January 2006. http://dx.doi.org/10.21236/ada456976.

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Richard, P. J. H. Patterns of Post-Wisconsinan Plant Colonization in Quebec-Labrador [Chapter 7: Quaternary Environments in Canada As Documented By Paleobotanical Case Histories]. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/131571.

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McKinnon, Mark, Craig Weinschenk, and Daniel Madrzykowski. Modeling Gas Burner Fires in Ranch and Colonial Style Structures. UL Firefighter Safety Research Institute, June 2020. http://dx.doi.org/10.54206/102376/mwje4818.

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The test scenarios ranged from fires in the structures with no exterior ventilation to room fires with flow paths that connected the fires with remote intake and exhaust vents. In the ranch, two replicate fires were conducted for each room of origin and each ventilation condition. Rooms of fire origin included the living room, bedroom, and kitchen. In the colonial, the focus was on varying the flow paths to examine the change in fire behavior and the resulting damage. No replicates were conducted in the colonial. After each fire scene was documented, the interior finish and furnishings were replaced in affected areas of the structure. Instrumentation was installed to measure gas temperature, gas pressure, and gas movement within the structures. In addition, oxygen sensors were installed to determine when a sufficient level of oxygen was available for flaming combustion. Standard video and firefighting IR cameras were also installed inside of the structures to capture information about the fire dynamics of the experiments. Video cameras were also positioned outside of the structures to monitor the flow of smoke, flames, and air at the exterior vents. Each of the fires were started from a small flaming source. The fires were allowed to develop until they self-extinguished due to a lack of oxygen or until the fire had transitioned through flashover. The times that fires burned post-flashover varied based on the damage occurring within the structure. The goal was have patterns remaining on the ceiling, walls, and floors post-test. In total, thirteen experiments were conducted in the ranch structure and eight experiments were conducted in the colonial structure. All experiments were conducted at UL's Large Fire Laboratory in Northbrook, IL. Increasing the ventilation available to the fire, in both the ranch and the colonial, resulted in additional burn time, additional fire growth, and a larger area of fire damage within the structures. These changes are consistent with fire dynamics based assessments and were repeatable. Fire patterns within the room of origin led to the area of origin when the ventilation of the structure was considered. Fire patterns generated pre-flashover, persisted post-flashover if the ventilation points were remote from the area of origin.
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Marcos-Marne, Hugo. The Spanish Radical Right under the shadow of the invasion of Ukraine. European Center for Populism Studies (ECPS), March 2023. http://dx.doi.org/10.55271/rp0030.

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Despite the geographical distance, the war in Ukraine has brought to the fore links between the Russian establishment and Radical Right forces in Spain. Both scholars and pundits have taken an interest in the question, which spread to party competition, quickly turning into a (discursive) race away from Putin as the consequences of war become more evident. Despite the war’s unquestioned relevance and previous links between Russia and the Radical Right in Spain (albeit less established than in other European countries), a systematic analysis of the effects of the invasion is missing. This report addresses this gap by focusing on the impact of the Ukraine invasion on party discourse and public opinion in Spain. It analyses records of proceedings from the Spanish Parliament, Twitter messages posted by the VOX party and its leader, and survey data gathered since February 2022 by the Spanish Center for Sociological Research (CIS). The main findings at the party level highlight the relatively weak associations between the Kremlin and The Radical Right in Spain (compared to other European countries), as well as efforts to separate from Putin after the invasion started. A more complex pattern of preferences is identified at the individual level.
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