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Graph database Neo4j discovers fake reviews on Amazon

04.08.2020

Home » Archive » 2020 » Issue 58: Graph... »

five-star reviews that look very similar. The problem is so evident on Amazon that customers rub their eyes in amazement wondering why the online giant doesn't intervene. Graph databases can help

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Visualizing time series data

21.08.2014

Home » Archive » 2014 » Issue 22: OpenS... »

application then grabs the data from this database and creates charts. The client can be programmed by the user or it can come as a prepared daemon (e.g., collectd [3]). If you like to measure your own ... 22

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I/O Profiling at the Block Level

27.08.2014

Home » HPC » Articles »

-1600) CentOS 6.5 (updates current as of August 22, 2014) For testing, I used a Samsung SSD 840 Series drive that has 120GB of raw capacity (unformatted) and is connected via a SATA 3 (6Gbps) connection

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mpi4py – high-performance distributed Python

30.11.2020

Home » Archive » 2020 » Issue 60: Secur... »

): 11 12 s = 0.0 13 s += h * f(a) 14 for i in range(1, n): 15 s += 2.0 * h * f(a + i*h) 16 # end for 17 s += h * f(b) 18 return (s/2.) 19 # end def 20 21 22 # Main section 23 comm = MPI

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Security first with the Hiawatha web server

11.04.2016

Home » Archive » 2016 » Issue 32: Measu... »

-fastcgi are running, as expected. Listing 1 Process List root 589 0.0 0.3 142492 3092 ? Ss 20:35 0:00 nginx: master process /usr/sbin/nginx -g daemon on; master_process on; www

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Warewulf 4

13.12.2022

Home » HPC » Articles »

Packages: (1/6): dhcp-common-4.3.6-47.el8.noarch.rpm 902 kB/s | 206 kB 00:00 (2/6): dhcp-libs-4.3.6-47.el8.x86_64.rpm 3.1 MB/s | 147 kB 00:00 (3

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Kubernetes k3s lightweight distro

25.03.2020

Home » Archive » 2020 » Issue 56: Secur... »

Lead Image Photo by Josh Rakower on Unsplash

into continuous integration and continuous deployment (CI/CD) pipeline tests and IoT appliances. The super-portable k3s [2] Kubernetes distribution is a lightweight solution to all the capacity challenges ... The k3s lightweight and secure Kubernetes distribution can handle both unattended workloads in remote locations with minimal resources and clusters of IoT appliances. ... Kubernetes k3s lightweight distro

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Gathering Data on Environment Modules

10.09.2012

Home » HPC » Articles »

to logfiles, and it’s pretty simple to use: [laytonjb@test1 ~]$ logger "This is a test" ... [root@test1 ~]# tail -n 2 /var/log/messages Aug 22 15:54:47 test1 avahi-daemon[1398]: Invalid query packet. Aug 22 17:00

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Asynchronous PostgreSQL

12.09.2013

Home » Archive » 2013 » Issue 16: Docker »

.pl 00:00:00.50023 The output shows the amount of computing time the database engine consumed. You can pass in the desired time as a CGI parameter: $ curl http://localhost/cgi/burn0.pl\?3 00:00

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System temperature as a dimension of performance

28.11.2022

Home » Archive » 2022 » Issue 72: OpenS... »

of alternative sources. Listing 1 sensors Output federico@ferenginar:~$ sensors k10temp-pci-00c3 Adapter: PCI adapter temp1: +42.5¡C (high = +70.0¡C) (crit = +100.0¡C

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