Re-designing Cloud Platforms for Massive Scale Using a P2P Architecture

2017 ◽  
Author(s):  
Joao Monteiro Soares ◽  
Fetahi Wuhib ◽  
Vinay Yadhav ◽  
Xin Han ◽  
Robin Joseph
Keyword(s):  
Massive Scale

Construction and Reduction Methods of Web Spam Identification Index System

2019 ◽  
Vol 12 (3) ◽  
pp. 202-211
Author(s):  
Yuancheng Li ◽  
Rong Huang ◽  
Xiangqian Nie
Keyword(s):  
Index System ◽  
Rapid Development ◽  
Recognition Rate ◽  
Computing Power ◽  
Detection Model ◽  
Web Spam ◽  
Reduction Methods ◽  
Massive Scale ◽  
The Index System ◽  
The Web

Background: With the rapid development of the Internet, the number of web spam has increased dramatically in recent years, which has wasted search engine storage and computing power on a massive scale. To identify the web spam effectively, the content features, link features, hidden features and quality features of web page are integrated to establish the corresponding web spam identification index system. However, the index system is highly correlation dimension. Methods: An improved method of autoencoder named stacked autoencoder neural network (SAE) is used to realize the reduction of the web spam identification index system. Results: The experiment results show that our method could reduce effectively the index of web spam and significantly improves the recognition rate in the following work. Conclusion: An autoencoder based web spam indexes reduction method is proposed in this paper. The experimental results show that it greatly reduces the temporal and spatial complexity of the future web spam detection model.

The “Impossible State”

2017 ◽  
Author(s):  
Alex J. Bellamy
Keyword(s):  
East Asia ◽  
State Policy ◽  
North Korea ◽  
The State ◽  
Regional Trend ◽  
State Collapse ◽  
Power Politics ◽  
Massive Scale ◽  
Contemporary Situation

This is the first of two chapters to examine states that have bucked the regional trend. North Korea stands out as the only state in East Asia that continues to employ mass atrocities as a matter of state policy. This chapter explains why the forces that promoted peace in other parts of the region (state consolidation and responsibility, the developmental trading state, habits of multilateralism, and power politics) failed to achieve the same effects in these two countries. It then looks at the contemporary situation to ascertain the prospects for reform and the likelihood of future reductions in the incidence of mass atrocities. It finds that the state relies on mass coercion to maintain itself in power and that there is little prospect of imminent reform, whilst state collapse remains a viable possibility that could precipitate mass atrocities on a massive scale.

scholarly journals Fast and robust identity-by-descent inference with the templated positional Burrows-Wheeler transform

2020 ◽  
Author(s):  
William A Freyman ◽  
Kimberly F McManus ◽  
Suyash S Shringarpure ◽  
Ethan M Jewett ◽  
Katarzyna Bryc ◽  
...  
Keyword(s):  
Isolation By Distance ◽  
False Negative ◽  
Segment Length ◽  
Data Sets ◽  
Haplotype Sharing ◽  
Binary File ◽  
Inference Algorithms ◽  
Out Of Sample ◽  
Massive Scale ◽  
Burrows Wheeler Transform

Abstract Estimating the genomic location and length of identical-by-descent (IBD) segments among individuals is a crucial step in many genetic analyses. However, the exponential growth in the size of biobank and direct-to-consumer (DTC) genetic data sets makes accurate IBD inference a significant computational challenge. Here we present the templated positional Burrows-Wheeler transform (TPBWT) to make fast IBD estimates robust to genotype and phasing errors. Using haplotype data simulated over pedigrees with realistic genotyping and phasing errors we show that the TPBWT outperforms other state-of-the-art IBD inference algorithms in terms of speed and accuracy. For each phase-aware method, we explore the false positive and false negative rates of inferring IBD by segment length and characterize the types of error commonly found. Our results highlight the fragility of most phased IBD inference methods; the accuracy of IBD estimates can be highly sensitive to the quality of haplotype phasing. Additionally we compare the performance of the TPBWT against a widely used phase-free IBD inference approach that is robust to phasing errors. We introduce both in-sample and out-of-sample TPBWT-based IBD inference algorithms and demonstrate their computational efficiency on massive-scale datasets with millions of samples. Furthermore we describe the binary file format for TPBWT-compressed haplotypes that results in fast and efficient out-of-sample IBD computes against very large cohort panels. Finally, we demonstrate the utility of the TPBWT in a brief empirical analysis exploring geographic patterns of haplotype sharing within Mexico. Hierarchical clustering of IBD shared across regions within Mexico reveals geographically structured haplotype sharing and a strong signal of isolation by distance. Our software implementation of the TPBWT is freely available for non-commercial use in the code repository https://github.com/23andMe/phasedibd.

Sex and Coronavirus

Contexts ◽  
2020 ◽  
Vol 19 (4) ◽  
pp. 67-69
Author(s):  
Laura M. Carpenter
Keyword(s):  
Social Life ◽  
Sexual Relationships ◽  
Social Distancing ◽  
Massive Scale ◽  
Will Self

Human sexual relationships are one of the myriad aspects of social life that have been affected by our coronavirus-inspired regime of “social distancing.” Will self-seclusion on a massive scale enhance or diminish people's sex lives? Will they have more or less sex? Better or worse sex? In this article, the author explores these questions and more.

Help to War Victims in Nigeria

1968 ◽  
Vol 8 (93) ◽  
pp. 626-633 ◽  
Keyword(s):  
International Institutions ◽  
International Committee ◽  
Red Cross ◽  
The Third ◽  
Considerable Cost ◽  
Massive Scale ◽  
Governmental Institutions ◽  
To Come ◽  
War Victims ◽  
Work Up

In our last month's issue we gave an account of ICRC relief work up to the end of October 1968 in Nigeria and the secessionist province Biafra. This clearly brought out the scale and very considerable cost of the mission which will continue for months to come. As the financial situation had reached the crisis stage, the International Committee invited representatives of governments, National Societies and international institutions, able to help it, to a meeting in Geneva, in order to explain the facts which justify not only the massive scale of, but also support for, the Red Cross action. There were in fact three meetings, one of National Societies, the second of representatives of governments and inter-governmental institutions and the third of voluntary agencies.

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