Search Results for "algorithm"
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Showing 23 open source projects for "algorithm"
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MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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Go from Code to Production URL in SecondsSkip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
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Brotli
Brotli compression format
...This happens when "one-shot" decoding API is used (or input chunk for streaming API is not limited), input size (chunk size) is larger than 2GiB, and input contains uncompressed blocks. After the overflow happens, memcpy is invoked with a gigantic num value, that will likely cause the crash. Brotli is a generic-purpose lossless compression algorithm that compresses data using a combination of a modern variant of the LZ77 algorithm, Huffman coding and 2nd order context modeling, with a compression ratio comparable to the best currently available general-purpose compression methods. It is similar in speed with deflate but offers more dense compression. The specification of the Brotli Compressed Data Format is defined in RFC 7932. ... -
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FractalImageCompression
Java Fractal Image Compression based on Delaunay triangulation
Implementation of the algorithm of the paper: "Fractal image compression based on Delaunay triangulation and vector quantization" It is a Fractal compression algorithm, based on relationships between regions of the image (in this case triangles), rather than in explicitly the pixel values themselves. Video demo: https://frojasg1.com:8443/resource_counter/resourceCounter? -
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HashSum is a .NET port from GNU's md5sum and sha1sum. It supports: hash algorithm selection between MD5 and SHA1 (more could be added later) and compatibility between HashSum and GNU's checksum file format
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Crunch
Insane(ly slow but wicked good) PNG image optimization
Crunch is an image compression tool for lossy PNG image file optimization. Using a combination of selective bit depth, color palette reduction and color type, as well as zopfli DEFLATE compression algorithm encoding that employs the pngquant and zopflipng PNG optimization tools, Crunch is effectively able to optimize and compress images with minimal decrease in image quality. While it may produce file size gains larger than those produced by lossless approaches, the impact on image quality is often imperceptible, and optimized file sizes are still significantly lower than the original. -
Fully Managed MySQL, PostgreSQL, and SQL ServerCloud SQL handles your database ops end to end, so you can focus on your app.
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clzw
Implementation of LZW compression algorithm in C
Simple, fast implementation of LZW (Lempel–Ziv–Welch) data compression algorithm in C. - Console encoder/decoder tools - OS independent - Could be used in embedded projects - Works with raw code-stream LZW features: - Hardcoded dictionary size - Variable code size - Code search is performed by hash table and embedded in dictionary linked lists (encoder) - No dynamic memory allocation -
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Manifest Maker
Python app to create plain text manifest from files
Manifest Maker is a graphical Python application which takes a file or group of files and creates a plain text manifest list of each item. The manifest includes the file name (including directory structure) as well as a checksum of the file. (No longer maintained) -
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MicroZip
Create,extract and encrypt ZIP,GZIP,TAR,BZIP2,TAZ files on Java mobile
...MicroZip allows you to extract selected files without extracting the whole ZIP archive. MicroZip also supports encrypted ZIP archives with both classic ZIP encryption and AES 256 encryption algorithm. -
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backdup
BackDup is a Duplicity front-end for MacOS and Linux
BackDup is a Duplicity (http://duplicity.nongnu.org/) front-end for MacOS and Linux written in Java. Duplicity creates bandwidth-efficient backup using the rsync algorithm. Mac OS users: please install Duplicity via macports (https://www.macports.org/) Linux users: install Duplicity via your package manager as usual. -
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SafePassDB
Protect your personal data with SafePassDB.
...SafePassDB is a free multi-platform software application written in Java programming language that will enable you to protect all of your personal data with one "Master Password" using AES (Advanced Encryption Standard). SafePassDB is light weight and super easy to use! Current version of the software uses 128 bit AES (Advanced Encryption Standard) algorithm, which is a standard by U.S. National Institute of Standards and Technology (NIST), for protecting your personal data. IMPORTANT: In order to run SafePassDB you need to have Java installed on your computer. Java is free and can be downloaded from - http://www.java.com/ -
Ship Agents FasterGemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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Use of Michael Rabin's Information Dispersal Algorithm to provide secure, dispersed storage in a networked environment. For full download, please get both Math-FastGF2 and Crypt-IDA releases under the files link. See project wiki for more information.
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The utility sfxcompress is a bash script used to pack and encrypt the current directory on a self-extracting file. It also includes the calculation of the MD5 function to check if the compressed file is correct.
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qlsdup
GUI based lightweight duplicate file finder / remover.
...This is basically a reimplementation of dupfinder as: it doesn't compile on my computer, the executable won't work either, the projects seems dead and I didn't wanna work through the original code. So Look'n'Feel should be somewhat the same, though some changes have been made. Algorithm is simple and suitable for large file sets with few differences: basic set of duplicate candidates is determined by file size, then candidates are compared byte-wise. So for files which don't start to differ by growing at the tail it reduces read operations greatly compared to hash-based comparision (i.e. test case: 40GB of files, 16GB RAM, many differences: initial compare (uncached by OS) around 300sec, subsequent compare (relevant file parts cached by OS) ca. 2sec) Note: this program is not related to lsdup -
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The RLE compression pack is a set of utilities to compress and decompress files using RLE algorithm.
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ShredBitz is a free and simple file shredder tool that can wipe selected files from any hard disk drive. ShredBitz is written in the java programming language and uses a custom written algorithm for shredding. ShredBitz is a very powerful tool.
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This software is used to delete files securely in the Linux operating system using low level system calls.
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An algorithm for compression and decompression of Binary Decision Diagrams will in many cases reduce the size of the BDD to 1-2 bits per node.
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Calculates differences of executable files using a randomized algorithm for matching with mismatches.
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The project will develop an in – memory object cache utilizing the LRU (least-recently-used) algorithm. The cache will store the objects that are most accessed within a fixed size memory pool. Thus system is keep statistics and calculates tradeoffs.
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Disk Optimizer selects files to be placed on any disk medium that will maximize the space used. It is very efficient in finding an optimum file set since it uses a Genetic Algorithm instead of brute force.
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Jarsync is a Java implementation of the rsync algorithm, a delta compression algorithm for fast network file transfers.
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Firefly's Clean Lzo
A human-readable ISC-Licensed implementation of the LZO1X algorithm.
...Usually it implies inline assembly or trying to execute data which actually contains machine code. This is sick. Whoever is responsible for this sorry situation ought to be ashamed. So I'm going to deobfuscate LZO and provide a ISC implementation of this algorithm in Python and C. In addition, I will provide a textual description of the algorithm so that it can be easily ported to any programming language. I expect a severe performance degradation, but I leave optimizing for speed to other people.
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