1,720,953 research outputs found
Parallel lightweight Block Cipher algorithm for Multicore CPUs
Get PDFأصبحت حماية البيانات واحدة من أهم القضايا على الرغم من التقدم الكبير في الاتصالات والتكنولوجيا. لكي ترسل التكنولوجيا المستندة إلى الويب البيانات بسرعة وأمان ، يجب تشفير البيانات. التشفير هو عملية تحويل النص العادي إلى نص مشفر ، لا يستطيع الأشرار قراءته أو تغييره. تتطلب كل من إجراءات تحليل التشفير وفك التشفير قدرًا كبيرًا من الوقت من أجل الحفاظ على المستوى المطلوب من الأمان. ومع ذلك ، طور عدد من الباحثين نهج التشفير بالتوازي من أجل تقليل مقدار الوقت اللازم لإنهاء إجراءات التشفير وفك التشفير. أنتج التحقيق في هذه القضية عددًا من الحلول القابلة للتطبيق. تمكن الباحثون من تحقيق مستويات أداء محسّنة في تقنية التشفير باستخدام التوازي لزيادة الإنتاجية وتعزيز كفاءة طرق التشفير. لتحقيق أداء عالٍ ، تم تقديم خوارزميات تشفير البقعة خفيفة الوزن وتنفيذها على منصات وحدة المعالجة المركزية مع تحسينات مختلفة. وبالتالي ، في هذا العمل ، تم اقتراح مخطط تشفير خفيف الوزن يستخدم جولة واحدة فقط من تقنية تشفير الكتلة التي يتم تطبيقها بالتوازي على معالج متعدد النواة. تستخدم خوارزمية تشفير الرسائل المقترحة كتلتين فرعيتين من 128 بت من الرسائل العادية ومربع الاستبدال و splitmix64 PRNG لتشفير الرسالة العادية والحصول على كتلتين فرعيتين مشفرتين ، مما يجعلها تقنية سريعة لتشفير وفك تشفير كتل الرسائل. بالمقارنة مع الطريقة الحالية. وفقًا لنتائج الأداء ، فإنه قادر على الوصول إلى إنتاجية عالية للبيانات مقارنة ببعض الأساليب خفيفة الوزن الموجودة بالفعل ، مع معدل نقل أعلى من 25 كيكابت في الثانية على وحدة المعالجة المركزية Intel Core i7. تتفوق طريقة التشفير المقترحة على طريقة البقع المتوازية بمعدل 14.10 مرة أسرع عند تنفيذها على وحدة معالجة مركزية متعددة النواة. متوسط التسريع مقارنة بالنسخة التسلسلية للخوارزمية المقترحة والتنفيذ المتوازي لها هو 4.70. أيضًا ، توفر طريقة التشفير المقترحة قدرًا كبيرًا من العشوائية وتجتاز الاختبارات الإحصائية لـ PractRand. وبالتالي ، فإن الطريقة المقترحة هي منافس قوي للتنفيذ عالي الأمان على المعالجات متعددة النواة.
Data protection has become one of the top issues despite major advancements in communications and technology. For web-based technology to send data quickly and safely, the data must be encrypted. Encryption is the process of turning plain text into ciphred text, which bad people can't read or change. Both the cryptanalysis and decryption procedures required a large amount of time in order to maintain the requisite level of security. However, a number of researchers developed the cryptography approach in parallel in order to reduce the amount of time needed for the encryption and decryption procedures to be finished. The investigation of the issue has produced a number of viable solutions. Researchers were able to attain improved performance levels on the encryption technique by using parallelism to increase the throughput and boost the efficiency of encryption methods. To achieve high performance, lightweight speck cipher algorithms have been presented and implemented on CPU platforms with various improvements. Thus, in this work, a lightweight cipher scheme is proposed which only employs one round of block cipher technique that is applied in parallel over a multicore processor. The proposed message encryption algorithm uses two subblocks of 128 bits of plain message and substitution box and splitmix64 PRNG to encrypt the plain message and obtain two encrypted subblocks, making it a fast technique to encrypt and decrypt blocks of messages. In comparison to the existing method. According to the performance findings, it is able to reach a high data throughput in comparison to some lightweight methods that already exist, with a throughput that is higher than 25 Gigabits per second on an Intel Core i7 central processing unit. The proposed encryption method outperforms the parallel speck method by an average of 14.10 times faster when executed over a multicore CPU. The average speedup compared to the sequential version of the proposed algorithm and its parallel implementation is 4.70. Also, the proposed encryption method offers a substantial amount of randomness and passes PractRand's statistical tests. Thus, the suggested method is a strong contender for high-security implementation on multicore processors.
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
Author Under Sail The Imagination of Jack London, 1893-1902
No full textIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Intro -- Title Page -- Copyright Page -- Dedication -- Contents -- Acknowledgments -- Introduction -- 1. Spirit Truth -- 2. From Absorption to Theatricality and Back Again -- 3. "I Will Build a New Present" -- 4. Sons as Authors -- 5. Fathers as Publishers -- 6. The Daughter as Author -- 7. Lovers as Authors -- 8. At Sea with the Family -- 9. Yellow News, Yellow Stories -- 10. The Return Home -- Notes -- Bibliography -- Index -- About Jay WilliamsIn Author Under Sail, Jay Williams offers the first complete literary biography of Jack London as a professional writer engaged in the labor of writing. It examines the authorial imagination in London's work, the use of imagination in both his fiction and nonfiction, and the ways he defined imagination in the creative process in his business dealings with his publishers, editors, and agents. In this first volume of a two-volume biography, Williams traverses the years 1893 to 1902, from London's "Story of a Typhoon" to The People of the Abyss. The Jack London who emerges in the pages of Author Under Sail is a writer whose partnership with publishers, most notably his productive alliance with George Brett of Macmillan, was one of the most formative in American literary history. London pioneered many author models during the heyday of realism and naturalism, blurring the boundaries of these popular genres by focusing on absorption and theatricality and the representation of the seen and unseen. London created an impassioned, sincere, and extremely personal realism unlike that of other American writers of the time. Author Under Sail is a literary tour de force that reveals the full range of London as writer, creative citizen, and entrepreneur at the same time it sheds light on the maverick side of machine-age literature.Description based on publisher supplied metadata and other sources.Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, YYYY. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries
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