scholarly journals Five-Card AND Computations in Committed Format Using Only Uniform Cyclic Shuffles

Author(s):  
Yuta Abe ◽  
Yu-ichi Hayashi ◽  
Takaaki Mizuki ◽  
Hideaki Sone

AbstractIn card-based cryptography, designing AND protocols in committed format is a major research topic. The state-of-the-art AND protocol proposed by Koch, Walzer, and Härtel in ASIACRYPT 2015 uses only four cards, which is the minimum permissible number. The minimality of their protocol relies on somewhat complicated shuffles having non-uniform probabilities of possible outcomes. Restricting the allowed shuffles to uniform closed ones entails that, to the best of our knowledge, six cards are sufficient: the six-card AND protocol proposed by Mizuki and Sone in 2009 utilizes the random bisection cut, which is a uniform and cyclic (and hence, closed) shuffle. Thus, a question has arisen: “Can we improve upon this six-card protocol using only uniform closed shuffles?” In other words, the existence or otherwise of a five-card AND protocol in committed format using only uniform closed shuffles has been one of the most important open questions in this field. In this paper, we answer the question affirmatively by designing five-card committed-format AND protocols using only uniform cyclic shuffles. The shuffles that our protocols use are the random cut and random bisection cut, both of which are uniform cyclic shuffles and can be easily implemented by humans.

Author(s):  
Marc Casas ◽  
Wilfried N Gansterer ◽  
Elias Wimmer

We investigate the usefulness of gossip-based reduction algorithms in a high-performance computing (HPC) context. We compare them to state-of-the-art deterministic parallel reduction algorithms in terms of fault tolerance and resilience against silent data corruption (SDC) as well as in terms of performance and scalability. New gossip-based reduction algorithms are proposed, which significantly improve the state-of-the-art in terms of resilience against SDC. Moreover, a new gossip-inspired reduction algorithm is proposed, which promises a much more competitive runtime performance in an HPC context than classical gossip-based algorithms, in particular for low accuracy requirements.


Author(s):  
Yasir Alanazi ◽  
Nobuo Sato ◽  
Pawel Ambrozewicz ◽  
Astrid Hiller-Blin ◽  
Wally Melnitchouk ◽  
...  

Event generators in high-energy nuclear and particle physics play an important role in facilitating studies of particle reactions. We survey the state of the art of machine learning (ML) efforts at building physics event generators. We review ML generative models used in ML-based event generators and their specific challenges, and discuss various approaches of incorporating physics into the ML model designs to overcome these challenges. Finally, we explore some open questions related to super-resolution, fidelity, and extrapolation for physics event generation based on ML technology.


2019 ◽  
Vol 11 (0) ◽  
pp. 1-8
Author(s):  
Mindaugas Žukauskas ◽  
Renata Korsakienė

Conflict resolution and leadership is growing research topic in academic literature. The demand of leaders of organizations to manage conflicts requires further analysis of this topic. It is necessary for better understanding of conflict resolution relationship with leadership. Bibliometrical analysis reveals this relationship. The study analyses 526 references collected from the Web of Science database and uses the VOSviewer program to graphically map the material. The bibliometric analysis involves co-occurrence of keywords, co-citation and co-authorship. The results identify the leading trends and development status in terms of impact, main journals, authors, papers, topics and countries. The analysis and graphical presentations are relevant for researchers and practitioners for better understanding of the state of the art of concflict resolution and leadership.


2017 ◽  
Vol 2 (2) ◽  
pp. 100-109 ◽  
Author(s):  
Anthony Pak-Hin Kong

Chinese is the world's most widely spoken language with about 1.2 billion speakers. Yet, the majority of the aphasia research to date has been focused on speakers of Indo-European languages. The goals of this paper are threefold: (a) to highlight major research findings that are specific to Chinese speakers with aphasia, (b) to provide a review of the state-of-the-art tools and resources for assessing and managing aphasia in Chinese, and (c) to discuss factors to consider for evaluating and treating Chinese aphasia.


2019 ◽  
Vol 19 (3) ◽  
pp. 693-720 ◽  
Author(s):  
Ferenc Attila Somogyi ◽  
Mark Asztalos

Abstract In model-driven methodologies, model matching is the process of finding a matching pair for every model element between two or more software models. Model matching is an important task as it is often used while differencing and merging models, which are key processes in version control systems. There are a number of different approaches to model matching, with most of them focusing on different goals, i.e., the accuracy of the matching process, or the generality of the algorithm. Moreover, there exist algorithms that use the textual representations of the models during the matching process. We present a systematic literature review that was carried out to obtain the state-of-the-art of model matching techniques. The search process was conducted based on a well-defined methodology. We have identified a total of 3274 non-duplicate studies, out of which 119 have been included as primary studies for this survey. We present the state-of-the-art of model matching, highlighting the differences between different matching techniques, mainly focusing on text-based and graph-based algorithms. Finally, the main open questions, challenges, and possible future directions in the field of model matching are discussed, also including topics like benchmarking, performance and scalability, and conflict handling.


Author(s):  
Andrew Rosenberg ◽  
Mark Hasegawa-Johnson

Automatic prosody labelling is a useful front-end for automatic speech recognition, for automatic speech understanding, and for the development of corpora used to create speech synthesizers. Automatic labelling of prosody has also proven to be quite useful in the linguistic analysis of new speaking styles in a known language. This chapter provides a survey of the state-of-the-art best practices and open questions in the automatic labelling of prosodic information and its assessment. It describes the major prosodic inventories that are used in prosody labelling. It then discusses the relevance of acoustics and syntax in automatic labelling. A brief description of AuToBI, a tool that performs automatic ToBI labelling of US English, is provided. The chapter concludes by discussing methods of evaluating automatic prosody labelling.


2018 ◽  
Vol 2 (Special edition 2) ◽  
pp. 113-122
Author(s):  
Smiljko Rudan ◽  
Irena Radić Rossi

Modern interdisciplinary projects are connecting researchers from seemingly unrelated fields, like naval engineering and archaeology. However, archaeological remnants of the present days, such as ancient ships and ceramic transport containers, were created by engineers and artisans of the past. It is therefore meaningful to consider their function and construction from an engineering point of view, complementing the archaeological research. One track of the interdisciplinary project Archaeology of Adriatic Shipbuilding and Seafaring (AdriaS), founded by the Croatian Science Foundation, aims at better understanding of structural behaviour of the ancient seaborne structures, made of wood and ceramics. In addition, a reverse engineering method is considered in the analysis of underwater archaeological sites, by the simulation of capsizing of ancient ship. This paper presents the possibilities and limitation of the application of the state-of-the-art engineering methods in nautical archaeology. It focuses on the analysis of wooden and ceramics structures, particularly through the identification of open questions, and exploitation of proper material models. Moreover, it presents the complex fluid-structure interaction analysis of a ship capsizing event as a possible engineering tool for testing hypothesis.


Author(s):  
T. A. Welton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.


2003 ◽  
Vol 48 (6) ◽  
pp. 826-829 ◽  
Author(s):  
Eric Amsel
Keyword(s):  

1968 ◽  
Vol 13 (9) ◽  
pp. 479-480
Author(s):  
LEWIS PETRINOVICH
Keyword(s):  

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