Recent Articles Changed
(Authentication|Access control|Identification) - AuthN
Modified Sep 25 - 12:31
Authentication is the process that establishes the identity of a user who accesses a resource of an application (page, image,...) It's abbreviated as AuthN for authentication versus AuthZ for authorization. The process validates who you are.(Identity "...
Java - Iterator Implementation
Modified Sep 24 - 15:31
The iterator implementation in Java is just an inner class that implements the iterator interface. In order to be able to use it in a for loop construction, the iterable interface must be implemented. See also: Introduced in the Java JDK 1.2 release "...
Web Service - Representational State Transfer (REST|RESTful) Web services
Modified Sep 24 - 14:38
Representational State Transfer (REST) Web services, or “RESTful” Web services describes any simple interface that transmits data over a standardized interface (such as HTTP) without an additional messaging layer, such asSOAURImicro-serviceHTTP r "...
Authentication - Basic Authentication (HTTP)
Modified Sep 22 - 17:55
Basic Access Authentication is an Authentication mechanism from HTTP auth. Basic access authentication uses the easily reversible Base64 encoding making it non-secure unless used in conjunction with TLS. The basic mechanism provides no confidentialit "...
Recent Articles Created
How to set the bitrate with ffmpeg
Created Sep 14 - 10:44
The bitrate with ffmpeg is a parameter that sets the quality of your video. You can set the bitrate: directly by giving a value with b:v (if you care the exact file size) or indirectly by giving the Constant Rate Factor (CRF) of the encoding scheme...
How to reduce the size of a video dramatically with ffmpeg ?
Created Aug 28 - 14:20
This article shows you how to reduce the size of video with ffmpeg. Size parameters The following parameters have an important on the size: the codec: the codec is the algorithm that encodes the picture into the video format. The better, the algorit...
How to crop a video with ffmpeg
Created Aug 28 - 12:09
This article shows you how to crop a video with ffmpeg. The crop filter once you have installed it, you can use the crop filter to crop your video. the crop is a filter that accepts the parameters such as the following w, out_w: the width of the out...
How to download and convert a video from twitter, youtube, tiktok (ie m3u, m3u8 format)
Created Aug 28 - 10:07
The M3U file is a playlist file format used often to define a stream video on the Internet. Twitter (as of today) uses it as video definition format. This page shows you how to download and convert a m3u8 playlist video to mp4 manually.youtube-ddevel...
Data all the way
Always keep one hand firmly on data, Amos liked to say.
Data is what set psychology apart from philosophy, and physics from metaphysics.
Data Warehouse Subsystems
Developing a data warehouse means assembling a lot of subsystems in order to create a whole and coherent data application.
Discovers the 34 Kimball Subsystems and drill down to discover them
Data Processing
Data processing has changed a lot since 1940 :) and luckily, we are not using punch card anymore.
Stream processing is becoming the norm in data integration task while batch processing stays the king in data analysis.
ENIAC, 1946
The first fully electronic digital computer
Dimensional Data Modeling
Dimensional Data Modeling permits you to model a (hyper)cube and analyse a process through different perspective. You define dimensions, measures and metrics.
Most programs process some input to produce some output; that’s pretty much the definition of computing.
Function
A Function is the basic block of all reusable code component. It is also becoming the central component of any serverless architecture.
Knowledge isn't free. You have to pay attention.
Computing Division at the Department of the Treasury, mid 1920s
Table / Relation
The table format (known also as a relation) is the most important data structure used in data analysis. Did you know that its name originate from the medieval counting table ?
Education isn't something you can finish.