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Littérature scientifique sur le sujet « Prym map »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 10 mars 2023

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Articles de revues sur le sujet "Prym map"

Colombo, Elisabetta, et Paola Frediani. « Prym map and second Gaussian map for Prym-canonical line bundles ». Advances in Mathematics 239 (juin 2013) : 47–71. http://dx.doi.org/10.1016/j.aim.2013.02.009.

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Lange, Herbert, et Angela Ortega. « On the Prym map of cyclic coverings ». Archiv der Mathematik 111, n^o 6 (25 août 2018) : 621–31. http://dx.doi.org/10.1007/s00013-018-1242-5.

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Scognamillo, Renata. « Prym-Tjurin varieties and the Hitchin map ». Mathematische Annalen 303, n^o 1 (septembre 1995) : 47–62. http://dx.doi.org/10.1007/bf01460978.

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Lange, Herbert, et Angela Ortega. « The Prym map of degree-7 cyclic coverings ». Algebra & ; Number Theory 10, n^o 4 (20 juin 2016) : 771–801. http://dx.doi.org/10.2140/ant.2016.10.771.

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Naranjo, Juan-Carlos. « The positive-dimensional fibres of the Prym map ». Pacific Journal of Mathematics 172, n^o 1 (1 janvier 1996) : 223–26. http://dx.doi.org/10.2140/pjm.1996.172.223.

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Ortega, Angela. « The Prym Map : From Coverings to Abelian Varieties ». Notices of the American Mathematical Society 67, n^o 09 (1 octobre 2020) : 1. http://dx.doi.org/10.1090/noti2150.

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Colombo, Elisabetta, Paola Frediani, Alessandro Ghigi et Matteo Penegini. « Shimura curves in the Prym locus ». Communications in Contemporary Mathematics 21, n^o 02 (27 février 2019) : 1850009. http://dx.doi.org/10.1142/s0219199718500098.

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We study Shimura curves of PEL type in [Formula: see text] generically contained in the Prym locus. We study both the unramified Prym locus, obtained using étale double covers, and the ramified Prym locus, corresponding to double covers ramified at two points. In both cases, we consider the family of all double covers compatible with a fixed group action on the base curve. We restrict to the case where the family is one-dimensional and the quotient of the base curve by the group is [Formula: see text]. We give a simple criterion for the image of these families under the Prym map to be a Shimura curve. Using computer algebra we check all the examples obtained in this way up to genus 28. We obtain 43 Shimura curves contained in the unramified Prym locus and 9 families contained in the ramified Prym locus. Most of these curves are not generically contained in the Jacobian locus.

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Ciliberto, Ciro, Thomas Dedieu, Concettina Galati et Andreas Leopold Knutsen. « On the locus of Prym curves where the Prym-canonical map is not an embedding ». Arkiv för Matematik 58, n^o 1 (2020) : 71–85. http://dx.doi.org/10.4310/arkiv.2020.v58.n1.a5.

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Marcucci, Valeria Ornella, et Gian Pietro Pirola. « Generic Torelli theorem for Prym varieties of ramified coverings ». Compositio Mathematica 148, n^o 4 (juillet 2012) : 1147–70. http://dx.doi.org/10.1112/s0010437x12000280.

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AbstractWe consider the Prym map from the space of double coverings of a curve of genus gwithrbranch points to the moduli space of abelian varieties. We prove that 𝒫:ℛg,r→𝒜δg−1+r/2is generically injective ifWe also show that a very general Prym variety of dimension at least 4 is not isogenous to a Jacobian.

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LANGE, HERBERT, et ANGELA ORTEGA. « COMPACTIFICATION OF THE PRYM MAP FOR NON-CYCLIC TRIPLE COVERINGS ». International Journal of Mathematics 24, n^o 03 (mars 2013) : 1350015. http://dx.doi.org/10.1142/s0129167x13500158.

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According to [H. Lange and A. Ortega, Prym varieties of triple coverings, Int. Math. Res. Notices2011(22) (2011) 5045–5075], the Prym variety of any non-cyclic étale triple cover f : Y → X of a smooth curve X of genus 2 is a Jacobian variety of dimension 2. This gives a map from the moduli space of such covers to the moduli space of Jacobian varieties of dimension 2. We extend this map to a proper map Pr of a moduli space [Formula: see text] of admissible S3-covers of genus 7 to the moduli space [Formula: see text] of principally polarized abelian surfaces. The main result is that [Formula: see text] is finite surjective of degree 10.

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Thèses sur le sujet "Prym map"

GROSSELLI, GIAN PAOLO. « Shimura varieties in the Prym loci of Galois covers ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/356638.

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In questa tesi si studiano le sottovarietà di Shimura negli spazi di moduli delle varietà abeliane complesse. Queste sottovarietà derivano da famiglie di rivestimenti di Galois compatibili con un'azione di gruppo fissata sulla curva base tale che il quoziente della curva base per il gruppo è isomorfo alla retta proiettiva. Si da un criterio affinché l'immagine di queste famiglie tramite la mappa di Prym sia una sottovarietà speciale e, sfruttando il computer, si costruiscono numerose sottovarietà di Shimura contenute nei luoghi di Prym.
In this thesis we study Shimura subvarieties in the moduli space of complex abelian varieties. These subvarieties arise from families of Galois covers compatible with a fixed group action on the base curve such that the quotient of the base curve by the group is isomorphic to the projective line. We give a criterion for the image of these families under the Prym map to be a special subvariety and, using computer algebra, we build several Shimura subvarieties contained in the Prym loci.

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Lahoz, Vilalta Marti. « Theta-duality in abelian varieties and the bicanonical map of irregular varieties ». Doctoral thesis, Universitat Politècnica de Catalunya, 2010. http://hdl.handle.net/10803/77898.

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The first goal of this Thesis is to contribute to the study of principally polarized abelian varieties (ppav), especially to the Schottky and the Torelli problems. Ppav admit a duality theory analogous to that of projective spaces, where the role played by hyperplanes in projective spaces is played by divisors representing the principal polarization. Thus, given a subvariety Y of a ppav, we can define its thetadual T(Y) as the set of divisors representing the principal polarization that contain this subvariety. This set admits a natural schematic structure (as defined by Pareschi and Popa). Jacobian and Prym varieties are classical examples of ppav constructed from curves. Besides, they are interesting because some properties of the curves involved in their construction are reflected in their geometry or in the geometry of some special subvarieties. For example, in the case of Jacobians we have the BrillNoether loci Wd ( W1 corresponds to the AbelJacobi curve) and in the case of Pryms we have the AbelPrym curve C. In chapter III, we study the schematic structure of the thetadual of the BrillNoether loci Wd and the AbelPrym curve. In the first case, we obtain with different methods, the result of Pareschi and Popa T(Wd)= Wgd1. In the case of the AbelPrym curve C, we get that T(C)=V², where V² is the second PrymBrillNoether locus with the schematic structure defined by Welters. Pareschi and Popa have proved a result for ppavs analogous to the Castelnuovo Lemma for projective spaces. That is, if (A,Θ) is a ppav of dimension g, then g+2 distinct points in general position with respect to Θ, but in special position with respect to 2Θ, have to be contained in a curve of minimal degree in A, i.e. an AbelJacobi curve. In particular, they obtain a Schottky result because A has to be a Jacobian variety and a Torelli result, because the curve is the intersection of all the divisors in |2Θ| that contain the g+2 points. In chapter IV, as Eisenbud and Harris have done in the projective Castelnuovo Lemma, we extend this result to possibly nonreduced finite schemes. The second goal of this thesis is the study of varieties of general type. Almost by definition, pluricanonical maps are the essential tool to study them. One of the main problems in this area is to find geometric or numerical conditions to guarantee that the mth pluricanonical map (for low m) induces a birational equivalence with its image. The classification of surfaces whose bicanonical map is nonbirational has attracted considerable interest among algebraic geometers. In chapter V, we give a sufficient numerical condition for the birationality of the bicanonical map of irregular varieties of arbitrary dimension. We also prove that, if X is a primitive variety, then it only admits very special fibrations to other irregular varieties. For primitive varieties we get that the following are equivalent: X is birational to a divisor Θ in an indecomposable ppav, the irregularity q(X) > dim X and the bicanonical map is nonbirational. When X is a primitive variety of general type and q(X) = dim X we prove, under certain conditions over the Stein factorization of the Albanese map, that the only possibility for the bicanonical map being nonbirational is that X is a double cover branched along a divisor in |2Θ|. These results extend to arbitrary dimension, wellknown theorems in the case of surfaces and curves.
El primer objectiu d'aquesta tesi és contribuir a l'estudi de les varietats abelianes principalment polaritzades (vapp), especialment als problemes de Schottky i Torelli. Les vapp admeten una teoria de dualitat anàloga a la dualitat dels espais projectius, on el paper que juguen els hiperplans de l'espai projectiu és substituït pels divisors que representen la polarització principal. Així doncs, donada una subvarietat Y d'una vapp, podem definir el seu thetadual T(Y) com el conjunt dels divisors que representen la polarització principal i contenen aquesta subvarietat. Aquest conjunt admet una estructura esquemàtica natural (tal i com la defineixen Pareschi i Popa). Les varietats Jacobianes i de Prym són exemples clàssics de vapp construïdes a partir de corbes. A més, són interessants perquè certes propietats de les corbes involucrades es veuen reflectides en elles o en algunes subvarietats especials. Per exemple, en el cas de les Jacobianes tenim els llocs de BrillNoether Wd ( W1 correspon a la corba d'AbelJacobi) i en el cas de les Pryms tenim la corba d'AbelPrym C. Al capítol III de la tesi s'estudia l'estructura esquemàtica del thetadual dels llocs de BrillNoether Wd i de la corba d'AbelPrym. En el primer cas, es reobté amb uns altres mètodes, el resultat de Pareschi i Popa T(Wd)= Wgd1. En el cas de la corba d'AbelPrym C, s'obté que T(C)=V², onV² és el segon lloc de PrymBrillNoether amb l'estructura esquemàtica definida per Welters. Pareschi i Popa han demostrat un resultat anàleg per les vapp al Lemma de Castelnuovo pels espais projectius. És a dir, si (A,Θ) és una vapp de dimensió g, aleshores g+2 punts en posició general respecte Θ, però en posició especial respecte 2Θ, han d'estar continguts en una corba de grau minimal a A, i.e. una corba d'AbelJacobi. En particular, s'obté un resultat de Schottky ja que A ha de ser una Jacobiana i un resultat de Torelli, ja que la corba és la intersecció de tots els divisors de |2Θ| que contenen els g+2 punts. Al capítol IV, tal i com Eisenbud i Harris van fer en el cas projectiu, s'estén aquest resultat a esquemes finits possiblement no reduïts. El segon objectiu d'aquesta tesi és contribuir a l'estudi de les varietats de tipus general. Pràcticament per definició, les aplicacions pluricanòniques són essencials pel seu estudi. Un dels problemes principals de l'àrea és donar condicions geomètriques o numèriques per assegurar que la mèsima aplicació pluricanònica (per m baix) indueix una equivalència biracional amb la imatge. La classificació de les superfícies que tenen l'aplicació bicanònica no biracional ha atret l'atenció de molts geòmetres algebraics. Al capítol V, es dóna un criteri numèric suficient per assegurar la biracionalitat de l'aplicació bicanònica de les varietats irregulars de dimensió arbitrària. També es demostra que si X és una varietat primitiva, aleshores només admet fibracions molt especials a altres varietats irregulars. Per aquestes varietats s'obté que és equivalent que X sigui biracional a un divisor Θ en una vapp indescomponible, a què la irregularitat q(X) > dim X i l'aplicació bicanònica sigui no biracional. Quan X és una varietat primitiva de tipus general i q(X) = dim X es demostra sota certes condicions de la descomposició de Stein del morfisme d'Albanese, que l'única possibilitat per tal que l'aplicació bicanònica sigui no biracional és que X sigui un recobriment doble sobre una vapp ramificat al llarg d'un divisor a |2Θ|. Aquest resultats estenen a dimensió arbitrària, teoremes ben coneguts en el cas de superfícies i corbes.

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Andrade, Ismael Mendes. « Territorializa??o da Aten??o Prim?ria ? Sa?de : avalia??o e perspectivas no munic?pio de Santo Ant?nio de Jesus, Bahia ». Universidade Estadual de Feira de Santana, 2015. http://localhost:8080/tede/handle/tede/534.

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Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2017-11-29T00:37:35Z No. of bitstreams: 1 DISSERTA??O_ISMAEL_MENDES_ANDRADE.pdf: 2423968 bytes, checksum: 7c9dd9504eb53f3eb30471b6313e642f (MD5)
Made available in DSpace on 2017-11-29T00:37:35Z (GMT). No. of bitstreams: 1 DISSERTA??O_ISMAEL_MENDES_ANDRADE.pdf: 2423968 bytes, checksum: 7c9dd9504eb53f3eb30471b6313e642f (MD5) Previous issue date: 2015-04-07
The territorialization stands out as a technique which ?creates?political territories for Health, is also an organizing tool in healthcare practices, included in the National Policy of Primary Care through attached territory, and allows for the planning, decentralized programming and the development of intersectoral actions in line with the principle of equality established by the Unified Health System. Therefore the main objective of the study was to analyze the territorialization in Primary Health Care in Santo Ant?nio de Jesus, Bahia. The methodology became the choice for exploratory approach from the quantitative nature. Therefore held survey of bibliographic references on the Unified Health System (SUS), on territory, health and primary health care and verification of documents related to legislation also ordinances and resolutions on the subject, made her survey of cartographic base the census tracts of the city under study, and research of the administrative organization of the Municipal Health Department, georeferencing of the Family Health Units and application forms with the Community Health Agents of the service areas of the Health Unit. The result showed need for territorial parameterized as many health facilities exceeded the population limits; weaknesses to the employment contract of top-level professionals. And contribution of adequacy proposals, in addition to thematic maps for organization in health districts and consequently in health units.
A Territorializa??o destaca-se como t?cnica que ?cria?territ?rios pol?ticos para a Sa?de, representa, tamb?m, um instrumento de organiza??o das pr?ticas de Sa?de, inserida nas diretrizes da Pol?tica Nacional da Aten??o B?sica por meio de territ?rio adstrito, e permite o planejamento, a programa??o descentralizada e o desenvolvimento de a??es intersetoriais na conson?ncia com o princ?pio da igualdade estabelecido pelo Sistema ?nico de Sa?de. Portanto o objetivo principal do trabalho foi avaliar a territorializa??o na Aten??o Prim?ria ? Sa?de no munic?pio de Santo Ant?nio de Jesus, Bahia. Na metodologia fez-se a escolha pela abordagem explorat?ria a partir da natureza quantitativa. Para tanto realizou-se levantamento de referenciais bibliogr?ficos sobre o Sistema ?nico de Sa?de (SUS), sobre territ?rio, sa?de e Aten??o Prim?ria ? Sa?de e verifica??o de documentos referentes ? legisla??o, tamb?m portarias e resolu??es sobre a tem?tica, fez se levantamento de base cartogr?fica dos setores censit?rios do munic?pio em estudo, al?m de pesquisa da organiza??o administrativa da Secretaria Municipal de Sa?de, georreferenciamento das Unidades de Sa?de da Fam?lia e aplica??o de formul?rios com os Agentes Comunit?rios de Sa?de das ?reas de atendimento da Unidade de Sa?de. O resultado mostrou a necessidade de uma territorializa??o com par?metros, pois muitas unidades de sa?de ultrapassaram os limites populacionais;fragilidades ao v?nculo empregat?cio de profissionais de n?vel superior. E contribui??o das propostas de adequa??o, com os mapas tem?ticos para organiza??o nos distritos sanit?rios e consequentemente das Unidades de Sa?de.

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Jacobsson, Madeleine. « Dr. Eleine Mad ». Thesis, Kungl. Konsthögskolan, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kkh:diva-587.

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Dr. Eleine Mad är Madeleine Jacobsssons talesperson för dom vetenskapliga och paranormala upptäckter som uppstår i hennes världar. Hon beskriver innehåll, teknik och estetik utifrån ett kategoriseringssytem där konsten delas upp som olika typer av komponenter och därefter avkodas dessa allteftersom. För att förstå intuitionens inblandning i arbetsprocessen omförvandlas den till tre separata roller av en Sökare, Samlare och Myntare. Med rollerna försöker jag beskriva på vilka sätt som intuitionen är till gagn eller av förödelse för det konstnärliga arbetet. Sagan om M handlar om en grodlik karaktär, Delop, som lämnar sin hemplanet för att uppsöka andra världar. I sitt sökande hittar Delop ett folkslag vars syn och levnadssätt skiljer sig från hennes erfarenheter av “verkligheten” såsom hon lärt sig att överleva i den.
Dr. Eleine Mad is Madeleine Jacobsson's spokesperson for the scientific and paranormal discoveries that arise in her worlds. She describes content, tecniques and aesthetics based on a categorization system where art is divided into different types of components and then decoded as they go. To understand the intuition's involvement in the work process, it is transformed into three separate roles by a Seeker, Collector and a Myntare(In swedish language the one who is a "myntare" -is verbally declaring a concept or term). With these roles I try to describe in what ways intuition is beneficial or devastating to the artistic work. The story of M is about a frog-like character, Delop, who leaves the home planet to seek out other worlds. In her search, Delop finds a world whose views and lifestyles differ from her experiences of "reality" as she learned to survive in it.

Recorded sound and image material of the presentation is available for private use.

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Livres sur le sujet "Prym map"

A man and a pram. Clacton on Sea : Apex Publishing, 2008.

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Fenollera, Natalia Sanmartin. The awakening of Miss Prim. London : Abacus, 2014.

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translator, Soto Sonia, dir. The awakening of Miss Prim. Rearsby, Leicester : WF Howes Ltd, 2015.

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Italian boss, proud Miss Prim. Toronto : Harlequin, 2009.

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Wilson, Scarlet. The Maverick Doctor and Miss Prim. Don Mills, Ontario : Harlequin, 2013.

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Prom night at Finley High. Fort Worth, TX : Keith Walker Books, 2015.

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1939-, Lachinger Johann, Scheuringer Hermann, Tatzreiter Herbert, Adalbert-Stifter Institut des Landes Oberösterreich., Upper Austria (Austria). Abteilung Kultur. et Arbeitstagung zu Sprache und Dialekt in Oberösterreich (1st : 1988 : Schloss Zell an der Pram, Austria), dir. Sprache und Dialekt in Oberösterreich : Vorträge der 1. Arbeitstagung am 13. und 14. Mai 1988 in Schloss Zell a.d. Pram. Linz : Adalbert-Stifter-Institut des Landes Oberösterreich, 1989.

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Cundy, Mark. Man & a Pram. Apex Publishing Limited, Essex, 2019.

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Nasser, Nabeel, Sheila Stratford, Fabienne Brochier et Mike Diprose. Elect&Mag Prim Sci. Taylor & Francis Group, 2012.

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MAN WITH A PRAM. P/B, 2001.

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Chapitres de livres sur le sujet "Prym map"

Colombo, Elisabetta, et Paola Frediani. « Second Fundamental Form of the Prym Map in the Ramified Case ». Dans Galois Covers, Grothendieck-Teichmüller Theory and Dessins d'Enfants, 55–66. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-51795-3_4.

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Verra, Alessandro. « The Igusa Quartic and the Prym Map, with Some Rational Moduli ». Dans Rationality of Varieties, 403–33. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-75421-1_15.

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Cardenas, Michael, Craig J. Galban, Thomas L. Chenevert, Michelle Miller-Thomas, Brian D. Ross et Christina Tsien. « Parametric Response Map (PRM) Analysis Improves Response Assessment in Gliomas ». Dans Glioma Imaging, 109–26. Cham : Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-27359-0_7.

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Martens, Jan, Jan Friso Groote, Lars van den Haak, Pieter Hijma et Anton Wijs. « A Linear Parallel Algorithm to Compute Bisimulation and Relational Coarsest Partitions ». Dans Formal Aspects of Component Software, 115–33. Cham : Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-90636-8_7.

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AbstractThe most efficient way to calculate strong bisimilarity is by finding the relational coarsest partition of a transition system. We provide the first linear-time algorithm to calculate strong bisimulation using parallel random access machines (PRAMs). More precisely, with n states, m transitions and $$| Act |\le m$$ | A c t | ≤ m action labels, we provide an algorithm for $$\max (n,m)$$ max ( n , m ) processors that calculates strong bisimulation in time $$\mathcal {O}(n+| Act |)$$ O ( n + | A c t | ) and space $$\mathcal {O}(n+m)$$ O ( n + m ) . The best-known PRAM algorithm has time complexity $$\mathcal {O}(n\log n)$$ O ( n log n ) on a smaller number of processors making it less suitable for massive parallel devices such as GPUs. An implementation on a GPU shows that the linear time-bound is achievable on contemporary hardware.

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Amelung, Nina, Rafaela Granja et Helena Machado. « Introduction ». Dans Modes of Bio-Bordering, 1–14. Singapore : Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8183-0_1.

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Abstract This introductory chapter sets out the key themes and arguments of the book and provides a road map for the remaining chapters. It outlines the book’s ambition to contribute to the sociological and criminological literature on technological infrastructures, borders and specific visions of Europe by portraying what we call the biobordering processes at work in the EU. Relying on what Misa and Schot, reflecting on technological infrastructures, have called the ‘hidden integration’ and ‘hidden fragmentation’ of Europe, the transnational exchange of forensic DNA data organized through the Prüm system serves as an exemplary case through which to explore the different logics of biobordering dynamics at work across the European Union. We complement an EU-level analysis with country case analysis of modes of biobordering that emphasize the legal, scientific, technical, political and ethical dimensions related to the governance and uses of biometric technologies both at a national level and in a transnational collaboration.

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« Draw a circle around the things in this box you think a magnet will attract. In the box, draw things in your classroom that a magnet will attract. » Dans Elect&Mag Prim Sci, 73. Routledge, 2012. http://dx.doi.org/10.4324/9780203179161-10.

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« Test your magnets for strength ! What you need : different size and shape magnets, a box of ». Dans Elect&Mag Prim Sci, 74. Routledge, 2012. http://dx.doi.org/10.4324/9780203179161-11.

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« Magnetic puppets - Instruction sheet The puppets are now ready ! » Dans Elect&Mag Prim Sci, 75. Routledge, 2012. http://dx.doi.org/10.4324/9780203179161-12.

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« fold fold fold base fold ». Dans Elect&Mag Prim Sci, 76. Routledge, 2012. http://dx.doi.org/10.4324/9780203179161-13.

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« fold fold fold base support tab paper clips ». Dans Elect&Mag Prim Sci, 77–78. Routledge, 2012. http://dx.doi.org/10.4324/9780203179161-14.

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Actes de conférences sur le sujet "Prym map"

Ma, Xu, et Song Fu. « Position-Aware Recalibration Module : Learning From Feature Semantics and Feature Position ». Dans Twenty-Ninth International Joint Conference on Artificial Intelligence and Seventeenth Pacific Rim International Conference on Artificial Intelligence {IJCAI-PRICAI-20}. California : International Joint Conferences on Artificial Intelligence Organization, 2020. http://dx.doi.org/10.24963/ijcai.2020/111.

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We present a new method to improve the representational power of the features in Convolutional Neural Networks (CNNs). By studying traditional image processing methods and recent CNN architectures, we propose to use positional information in CNNs for effective exploration of feature dependencies. Rather than considering feature semantics alone, we incorporate spatial positions as an augmentation for feature semantics in our design. From this vantage, we present a Position-Aware Recalibration Module (PRM in short) which recalibrates features leveraging both feature semantics and position. Furthermore, inspired by multi-head attention, our module is capable of performing multiple recalibrations where results are concatenated as the output. As PRM is efficient and easy to implement, it can be seamlessly integrated into various base networks and applied to many position-aware visual tasks. Compared to original CNNs, our PRM introduces a negligible number of parameters and FLOPs, while yielding better performance. Experimental results on ImageNet and MS COCO benchmarks show that our approach surpasses related methods by a clear margin with less computational overhead. For example, we improve the ResNet50 by absolute 1.75% (77.65% vs. 75.90%) on ImageNet 2012 validation dataset, and 1.5%~1.9% mAP on MS COCO validation dataset with almost no computational overhead. Codes are made publicly available.

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Samano-Robles, Ramiro. « MAC-PRY Cross-Layer Design for Secure Wireless Avionics Intra-Communications ». Dans 2019 Eighth International Conference on Emerging Security Technologies (EST). IEEE, 2019. http://dx.doi.org/10.1109/est.2019.8806208.

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Velagic, Jasmin, Dada Delimustafic et Dinko Osmankovic. « Mobile robot navigation system based on Probabilistic Road Map (PRM) with Halton sampling of configuration space ». Dans 2014 IEEE 23rd International Symposium on Industrial Electronics (ISIE). IEEE, 2014. http://dx.doi.org/10.1109/isie.2014.6864789.

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Yoon, Su-Kyung, Kwang-Su Jung, Xian-Shu Li, Sung-Min Lee et Shin-Dug Kim. « Hot-cold data filtering and management for PRAM based memory-storage unified system ». Dans 2017 IEEE International Conference on Systems, Man and Cybernetics (SMC). IEEE, 2017. http://dx.doi.org/10.1109/smc.2017.8122845.

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Xiao, Qianxi, et Jiejin Cai. « A Location Algorithm for Orphan Radioactive Source ». Dans 2022 29th International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/icone29-93592.

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Abstract In order to reduce the harm to public safety caused by the loss of radioactive sources. A source searching method is proposed to locate orphan gamma source in the environment with obstacles and radiation shielding. The method is divided into two parts: predicting the probability of a radioactive source by Gaussian process regression (GPR) and path planning for the mobile robot using the probabilistic roadmap (PRM) method. The mean function and covariance function of the Gaussian process need to be selected in advance and the hyperparameters are calculated in the training process. Predicted values of GPR are given in the form of Gaussian distribution, which make us able to calculate the probability that there is a radioactive source in the grid and construct a probability map to guide the robot. The path connecting the start grid to the target grid is planned by the PRM method in a very short time, the cost function of A* algorithm in the query phase controls the pattern of the robot. At the beginning of the search, the robot prefers to move to areas with more information, after data above the threshold is detected, the robot switches to the tracking mode, accesses to the radioactive source rapidly. The effectiveness of the proposed method is verified in a simulation experiment in which a 10m × 10m radiation field with five walls is simulated. The searches of gamma point source are all successfully realized in 5 different cases and compared with the total number of discrete grids, the method uses only a small part of the grid data to realize the location. Overall, the results show that the proposed method is efficient for searching and locating orphan radioactive source.

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Bertini, Joao R., Maria do Carmo Nicoletti et Estevam R. Hruschka. « A Comparative Evaluation of Constructive Neural Networks Methods using PRM and BCP as TLU Training Algorithms ». Dans 2006 IEEE International Conference on Systems, Man and Cybernetics. IEEE, 2006. http://dx.doi.org/10.1109/icsmc.2006.384661.

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Santos, Paulo, Karina Delgado, Marcelo Lauretto et Marcio Ribeiro. « Revisão Sistemática da Literatura sobre ranking de Relacionamentos na Web Semântica ». Dans XIII Simpósio Brasileiro de Sistemas de Informação. Sociedade Brasileira de Computação, 2017. http://dx.doi.org/10.5753/sbsi.2017.6023.

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O ato de realizar pesquisas na Web tem sido o mesmo por anos. O usu´ario realiza uma consulta composta de termos, e o motor de busca ´e respons´avel por encontrar as melhores respostas `aquela consulta. Frequentemente, existem informa¸c˜oes subjetivas que o usu´ario n˜ao consegue transmitir em sua consulta, mas que ele espera que o motor de busca seja capaz de inferir. Isso leva a resultados que s˜ao relacionados `a sua consulta, mas n˜ao aos seus interesses. Uma forma de mitigar esse problema foi a introdu¸c˜ao da Web Semˆantica, que visa a permitir que os dados dispon´ıveis na Web tenham um sentido, ou seja, uma semˆantica. Diversas abordagens de busca na Web Semˆantica tˆem sido propostas e implementadas nos ´ultimos anos, bem como abordagens para classifica¸c˜ao (ranking) de resultados. Esta revis˜ao sistem´atica da literatura tem por objetivo identificar as tendˆencias na ´area de ranking de relacionamentos na Web Semˆantica. De um total de 1.194 artigos inicialmente retornados em nossa pesquisa, foram selecionados e analisados 10 estudos prim´arios nesse tipo de ranking, dando-se especial aten¸c˜ao `as caracter´ısticas das t´ecnicas adotadas e aos experimentos realizados. Observou-se ent˜ao que novas solu¸c˜oes promissoras envolvem o uso de algoritmos de aprendizado de m´aquina para realizar o ranking dos resultados das consultas.

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Strahan, BJ, EJ Peterson et PG Arndt. « PRAM-1 Regulates LPS-Induced Pulmonary Neutrophil Recruitment Via c-Jun N-Terminal Kinase and LPS-Induced CXC Chemokine (LIX). » Dans American Thoracic Society 2009 International Conference, May 15-20, 2009 • San Diego, California. American Thoracic Society, 2009. http://dx.doi.org/10.1164/ajrccm-conference.2009.179.1_meetingabstracts.a3633.

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Bell, A. J., S. Ram, W. W. Labaki, S. Murray, E. Kazerooni, S. Galban, D. A. Lynch et al. « Topological Parametric Response Mapping (PRM) Analysis for Spatially Localized Parenchymal Characterization in COPD : A COPDGene Study ». Dans American Thoracic Society 2021 International Conference, May 14-19, 2021 - San Diego, CA. American Thoracic Society, 2021. http://dx.doi.org/10.1164/ajrccm-conference.2021.203.1_meetingabstracts.a1047.

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getsy, john A., dawn harper, maya levy, jacobus burggraaf, matthijs moerland, ingrid de visser, marlies wijsenbeek et al. « The Effects Of Recombinant Human Pentraxin-2, (PRM-151), On Circulating Fibrocytes In Idiopathic Pulmonary Fibrosis (IPF) ». Dans American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado. American Thoracic Society, 2011. http://dx.doi.org/10.1164/ajrccm-conference.2011.183.1_meetingabstracts.a3803.

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