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1. |
Record Nr. |
UNINA9910668617303321 |
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Titolo |
Arabic in contact / / edited by Stefano Manfredi, CNRS, INALCO, SeDyl ; Mauro Tosco, University of Turin |
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Pubbl/distr/stampa |
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Amsterdam ; ; Philadelphia : , : John Benjamins Publishing Company, , [2018] |
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©2018 |
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Descrizione fisica |
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1 online resource (380 pages) |
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Collana |
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Studies in Arabic linguistics ; ; 6 |
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Disciplina |
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Soggetti |
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Languages in contact - Arab countries |
Sociolinguistics - Arab countries |
Arabic language - Social aspects |
Arabic language - Foreign elements |
Arabic language - Foreign countries |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Selected proceedings of the conference, Arabic in Contact: Linguistic and Sociolinguistic Perspective, held December 15-17, 2014 at the University of Naples. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Arabic in contact, now and then / Stefano Manfredi and Mauro Tosco -- The Arabic component in Domari / Bruno Herin -- Syntactic outcomes of contact in Sason Arabic / Faruk Akkus and Elabbas Benmamoun -- Arabic-Berber-Songhay contact and the grammaticalisation of "thing" / Lameen Souag -- Arabic and Berber in contact: Arabic in a minority situation i al Hoceima region / Dominique Caubet -- Arabic on the Dahlak Islands (Eritrea) / Marie-Claude Simeone-Senelle -- Hassaniyya Arabic in contact with Berber: the case of quadriliteral verbs / Catherine Taine-Cheikh -- Loan verbs in Egyptian Arabic: perspectives and evidence from social media / Ashraf F. Hassan -- Phonetical and morphological remarks on the adaptation of Italian loanwords in Libyan Arabic / Luca d'Anna -- An assessment of the Arabic lexical contribution to contemporary spoken Koalib / Nicolas Quint -- Why linguistics needs an historically oriented Arabic linguistics / Jonathan Owens -- Temporal adverbs of contrast in the basic variety of Arabic / Kees Versteegh -- On the relationship between Arabic foreigner talk |
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and pidgin Arabic / Andrei Avram -- Mountains do not meet, but men do: music and sociocultural networks among Arabic Creole-speaking communities across East Africa / Shuichiro Nakao -- Determiner phrase: how specific is it in Moroccan Arabic-French codeswitching? / Karima Ziamari -- From Arabia to Persia and back: code-switching among the al Ali tribe in the UAE and Iran / Dénes Gazsi -- Arabic borrowing of the Hebrew word menahel "manager": articulations and ideologies / Nancy Hawker -- Contact-induced change from a speakers' perspective: a study of language attitudes in Siwa / Valentina Serreli. |
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Sommario/riassunto |
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" The present volume provides an overview of current trends in the study of language contact involving Arabic. By drawing on the social factors that have converged to create different contact situations, it explores both contact-induced change in Arabic and language change through contact with Arabic. The volume brings together leading scholars who address a variety of topics related to contact-induced change, the emergence of contact languages, codeswitching, as well as language ideologies in contact situations. It offers insights from different theoretical approaches in connection with research fields such as descriptive and historical linguistics, sociolinguistics, ethnolinguistics, and language acquisition. It provides the general linguistic public with an updated, cutting edge overview and appreciation of themes and problems in Arabic linguistics and sociolinguists alike. As of January 2023, this e-book is freely available, thanks to the support of libraries working with Knowledge Unlatched. " |
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2. |
Record Nr. |
UNINA9910484234603321 |
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Autore |
Andrei Neculai |
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Titolo |
Nonlinear Conjugate Gradient Methods for Unconstrained Optimization / / by Neculai Andrei |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2020 |
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ISBN |
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Edizione |
[1st ed. 2020.] |
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Descrizione fisica |
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1 online resource (515 pages) |
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Collana |
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Springer Optimization and Its Applications, , 1931-6828 ; ; 158 |
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Disciplina |
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Soggetti |
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Mathematical optimization |
Mathematical models |
Optimization |
Mathematical Modeling and Industrial Mathematics |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di contenuto |
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1. Introduction -- 2. Linear Conjugate Gradient Algorithm -- 3. General Convergence Results for Nonlinear Conjugate Gradient Methods -- 4. Standard Conjugate Gradient Methods -- 5. Acceleration of Conjugate Gradient Algorithms -- 6. Hybrid and Parameterized Conjugate Gradient Methods -- 7. Conjugate Gradient Methods as Modifications of the Standard Schemes -- 8. Conjugate Gradient Methods Memoryless BFGS Preconditioned -- 9. Three-Term Conjugate Gradient Methods -- 10. Other Conjugate Gradient Methods -- 11. Discussion and Conclusions -- References -- Author Index -- Subject Index. |
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Sommario/riassunto |
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Two approaches are known for solving large-scale unconstrained optimization problems—the limited-memory quasi-Newton method (truncated Newton method) and the conjugate gradient method. This is the first book to detail conjugate gradient methods, showing their properties and convergence characteristics as well as their performance in solving large-scale unconstrained optimization problems and applications. Comparisons to the limited-memory and truncated Newton methods are also discussed. Topics studied in detail include: linear conjugate gradient methods, standard conjugate gradient |
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methods, acceleration of conjugate gradient methods, hybrid, modifications of the standard scheme, memoryless BFGS preconditioned, and three-term. Other conjugate gradient methods with clustering the eigenvalues or with the minimization of the condition number of the iteration matrix, are also treated. For each method, the convergence analysis, the computational performances and the comparisons versus other conjugate gradient methods are given. The theory behind the conjugate gradient algorithms presented as a methodology is developed with a clear, rigorous, and friendly exposition; the reader will gain an understanding of their properties and their convergence and will learn to develop and prove the convergence of his/her own methods. Numerous numerical studies are supplied with comparisons and comments on the behavior of conjugate gradient algorithms for solving a collection of 800 unconstrained optimization problems of different structures and complexities with the number of variables in the range [1000,10000]. The book is addressed to all those interested in developing and using new advanced techniques for solving unconstrained optimization complex problems. Mathematical programming researchers, theoreticians and practitioners in operations research, practitioners in engineering and industry researchers, as well as graduate students in mathematics, Ph.D. and master students in mathematical programming, will find plenty of information and practical applications for solving large-scale unconstrained optimization problems and applications by conjugate gradient methods. |
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