1,720,994 research outputs found
Simplifying Sequential Gate-Level Test Generation Through Exploitation of High-Level Information
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Parametric Throughput Oriented Large Integer Multipliers for High Level Synthesis
Full text linkThe multiplication of large integers represents a significant computation effort in some cryptographic techniques. The use of dedicated hardware is an appealing solution to improve performances or efficiency. We propose a methodology to generate throughput oriented hardware accelerators for large integers multiplication leveraging High-Level Synthesis. The proposed micro-architectural template combines Karatsuba and Comba algorithms to control the extra-functional properties of the generated multiplier. The goal is to enable the end user to explore a wide range of possibilities, in terms of performance and resource utilization, without requiring them to know implementation and synthesis details. Experimental results show the large flexibility of the generated architectures and that the generated Pareto-set of multipliers can outperform some state-of-the-art RTL design
An efficient heuristic approach to solve the unate covering problem
No full textThe paper presents a new approach to solve the unate covering problem based on exploitation of information provided by Lagrangean relaxation. In particular, main advantages of the proposed heuristic algorithm are the effective choice of elements to be included in the solution, cost-related reductions of the problem, and a good lower bound on the optimum. The results support the effectiveness of this approach: on a wide set of benchmark problems, the algorithm nearly always hits the optimum and in most cases proves it to be such. On the problems whose optimum is actually unknown, the best known result is strongly improved
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Full text link“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
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