Data Structures and Algorithms

1906 Submissions

[6] viXra:1906.0510 [pdf] submitted on 2019-06-27 03:07:38

Technical Comparison Aspects of Leading Blockchain-Based Platforms on Key Characteristic

Authors: Alexander Ivanov, Yevhenii Babichenko, Hlib Kanunnikov, Paul Karpus, Leonid Foiu­Khatskevych, Roman Kravchenko, Kyrylo Gorokhovskyi, Ievhen Nevmerzhitskyi
Comments: 7 Pages. Journal: NaUKMA Research Papers. Computer Science

Blockchain as a technology is rapidly developing, finding more and more new entry points into everyday life. This is one of the elements of the technical Revolution 4.0, and it is used in the field of supply, maintenance of various types of registers, access to software products, combating DDOS attacks, distributed storage, fundraising for projects, IoT, etc. Nowadays, there are many blockchain­platforms in the world. They have one technological root but different applications. There are many prerequisites to the fact that in the future the number of new decentralized applications will increase. Therefore, it is important to develop a methodology for determining the optimal blockchain­based platform to solve a specific problem. As an example, consider the world­famous platforms Ethereum, Nem, and Stellar. Each of them allows to develop decentralized applications, issue tokens, and execute transactions. At the same time, the key features of these blockchain­based platforms are not similar to one another. These very features will be considered in the article. Purpose. Identify the key parameters that characterize the blockchain­based platforms. This will provide an opportunity to present a complex blockchain technology in the form of a simple and understandable architecture. Based on these parameters and using the expertise of the article’s authors, we will be able to develop a methodology to be used to solve the problems of choosing the optimal blockchain­based platform for solving the problem of developing smart contracts and issuing tokens. Methods. Analysis of the complexity of using blockchain­based platforms. Implementation of token issuance, use of test and public networks, execution of transactions, analysis of the development team and the community, analysis of the user interface and the developer interface. Discussion. By developing a platform comparison methodology to determine optimal characteristics, we can take the development process to a new level. This will allow to quickly and effectively solve the tasks. Results. Creation of a methodology for comparison blockchain­based platforms.
Category: Data Structures and Algorithms

[5] viXra:1906.0416 [pdf] submitted on 2019-06-23 05:01:48

Algorithms Developed for Two Porotypes of Airborne Vision-Based Control of Ground Robots

Authors: Ilan Ehrenfeld, Oleg Kupervasser, Hennadii Kutomanov, Vitalii Sarychev, Roman Yavich
Comments: 6 Pages. accepted to 9th Int. Conf. on Geotechnique, Construction Materials and Environment, Tokyo, Japan, 2019

Unmanned autonomous robots will be widely used very soon for land use, treatment, and monitoring. Our and the other groups already described technologies, that can be used for such robots (Kupervasser et al., International Journal of GEOMATE, May, 2018 Vol.14, Issue 45, pp.10-16; Djaja et al., International Journal of GEOMATE, Aug, 2017, Vol.13, Issue 36, pp.31-34). We continue developing these technologies and present here new patented technology of airborne vision-based control of ground robots. The main idea is that robot’s “eyes” is not located on robot, but are independent autonomous system. As a result, the “eyes” can go up and observe the robot from above. We present in this paper algorithms used for two real physical prototypes of a such system
Category: Data Structures and Algorithms

[4] viXra:1906.0388 [pdf] submitted on 2019-06-21 08:54:41

Debugging Quantum Computers

Authors: George Rajna
Comments: 61 Pages.

In the paper titled "Statistical Assertions for Validating Patterns and Finding Bugs in Quantum Programs," Huang and Margaret Martonosi, a professor of Computer Science at Princeton, identify three key difficulties in debugging quantum programs, and evaluate their solutions in addressing those difficulties. [37] Researchers at the University of Chicago published a novel technique for improving the reliability of quantum computers by accessing higher energy levels than traditionally considered. [36] An international team of researchers has taken an important step towards solving a difficult variation of this problem, using a statistical approach developed at the University of Freiburg. [35] Storing information in a quantum memory system is a difficult challenge, as the data is usually quickly lost. At TU Wien, ultra-long storage times have now been achieved using tiny diamonds. [34] Electronics could work faster if they could read and write data at terahertz frequency, rather than at a few gigahertz. [33] A team of researchers led by the Department of Energy's Oak Ridge National Laboratory has demonstrated a new method for splitting light beams into their frequency modes. [32] Quantum communication, which ensures absolute data security, is one of the most advanced branches of the "second quantum revolution". [31] Researchers at the University of Bristol's Quantum Engineering Technology Labs have demonstrated a new type of silicon chip that can help building and testing quantum computers and could find their way into your mobile phone to secure information. [30] Theoretical physicists propose to use negative interference to control heat flow in quantum devices. [29] Particle physicists are studying ways to harness the power of the quantum realm to further their research. [28]
Category: Data Structures and Algorithms

[3] viXra:1906.0335 [pdf] submitted on 2019-06-19 00:16:59

Discovering Domain-Sensitive Topics in User-Reviews

Authors: Sarthak Kamat
Comments: 4 Pages.

Customer reviews are integral to retail businesses. This paper demonstrates new methods for ranking the most representative and interesting snippets within reviews posted by their customers.
Category: Data Structures and Algorithms

[2] viXra:1906.0226 [pdf] submitted on 2019-06-13 23:51:47

An Interesting Investigation Towards Understanding of [ Openjit Compiler Framework + Imagej Java Imaging Software ] Interaction with Jikesrvm [ RVM Research Virtual Machine ] in the Context of [byte Code Engineering Library(bcel) + Iot + High Performa

Authors: Nirmal Tej Kumar
Comments: 4 Pages. Short Communication & Simple Suggestion

An Interesting Investigation towards Understanding of [ OpenJIT Compiler Framework + ImageJ - Java Imaging Software ] Interaction with JikesRVM [ RVM- Research Virtual Machine ] in the Context of [Byte Code Engineering Library(BCEL) + IoT + High Performance Computing (HPC)] related Java based Heterogeneous Image Processing Environments – A Simple Suggestion & Technical Notes.
Category: Data Structures and Algorithms

[1] viXra:1906.0071 [pdf] submitted on 2019-06-05 21:30:23

Indirect Quicksort and Mergesort

Authors: Takeuchi Leorge
Comments: 21 Pages.

This paper estimates indirect quicksort and mergesort for various sizes of array element, and suggests a data structure to guarantee time complexity of O(n log(n)) in C language.
Category: Data Structures and Algorithms