1,720,956 research outputs found
An integrated access tree construction and tree encryption to improve the encryption/decryption efficiency
Get PDFThis work proposes a useful Ciphertext-Policy Attribute-Based Hierarchical archive grouping Encryption plan named CP-ABHE. By sensible, we infer that CP-ABHE is progressively powerful in both calculation and additional room without surrendering information security. In CP-ABHE, we initially build up a ton of composed access trees subject to the chronicles' attribute sets. We use the insatiable procedure to create the trees bit by bit and build up the trees capably by joining the little ones. By then, all the reports on an organized access tree are encoded together. Particular to existing plans, the leaves in different access trees with a comparative trademark offer a comparable mystery number, which is used to scramble the archives. This fundamentally improves the presentation of CP-ABHE. The security of our arrangement is speculatively exhibited subject to the decisional bilinear Diffine Hellman supposition
Improve query response time and reduce CPU cost in web search
Get PDFWe suggest the Predictive Energy Saving Online Scheduling Algorithm (PESOS) to choice the greatest suitable CPU frequency to procedure a query on a per-core basis. PESOS goal at procedure queries by their limits, and leverage high-level preparation info to decrease the CPU energy ingesting of a query dispensation node. PESOS base its result on inquiry efficacy predictors, guessing the meting out volume and meting out time of a query. We experimentally gauge PESOS upon the TREC ClueWeb09B collection and the MSN2006 query log. PESOS outpace also the best state-of-the-art entrant with a 20% oomph saving, while the player requires a fine restriction fine-tuning and it may invite in wild potential abuses
Efficient and Secure Routing In Network Layer For MANET
Get PDFSecure routing and communication security protocols can be combined and applied on the messages to deliver them with complete shielding. The custom of communication security protocols initially advanced for wire line and Wi-Fi networks can also present a heavy burden on the limited network resources of a MANET. To discourse these issues, a novel secure framework (SUPERMAN) was projected. The basis is planned to consent existing network and routing protocols to complete their functions, while providing node authentication, access control, and communication security mechanisms. In this work we present innovative security framework for MANETs, SUPERMAN. Recreation results comparing SUPERMAN with IPsec, SAODV and SOLSR are provided to determine the suggested frameworks correctness for wireless communication security
A novel SSGK to protect the communication process and shared data from unauthorized access
Get PDFA cloud-based big data sharing system uses a storage facility from a cloud specialist co-op to impart data to authentic clients. As opposed to customary arrangements, cloud supplier stores the mutual data in the huge server farms outside the trust area of the data proprietor, which may trigger the issue of data classification. This paper proposes a secret sharing group key management convention (SSGK) to secure the correspondence procedure and shared data from unapproved get to. Not quite the same as the earlier works, a shared key is utilized to encode the common data and a secret sharing plan is utilized to circulate the shared key in SSGK. The broad security and execution investigations demonstrate that our convention profoundly limits the security and protection dangers of sharing data in distributed storage and spares about 12% of extra storage space
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
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