Search Results for "algorithm"

Java API to realize quick ISAM (Index Sequential Access Method) functionality for application in the file system. Includes scalable database files w/ space recovery and variable record length, scalable B+Tree index files. Supports file backup and restore. Two package types: one with and one without strong file encryption using Twofish algorithm and state-of-the-art encryption technology.

calculate TOTP using database stored procedures allowing you to validate a user's entered TOTP with a stored secret. Cooperates with all authorization apps that calculate a TOTP using SHA1 encryption

The sqlite3fish is another encryption solution for sqlite3. It is based on some source code of botansqlite3(https://github.com/OlivierJG/botansqlite3) . But it does not need Botan library, it uses Blowfish algorithm to encrypt/decrypt the database file. This library only depends on the source code(no-modify) of SQLite3, it is clean and easy to compile. But currently it only supports the version 3.7.0 of SQLite3 (http://www.sqlite.org/sqlite-amalgamation-3_7_0.zip) .

Semantic query optimization (SQO) is the process of finding equivalent rewritings of an input query given constraints that hold in a database instance. We present a Chase & Backchase (C&B) algorithm strategy that generalizes and improves on well-known methods in the field. The implementation of our approach, the pegasus system, outperforms existing C&B systems an average by two orders of magnitude. This gain in performance is due to a combination of novel methods that lower the complexity...

jIntersect is an OLAP like Java algorithm that takes a JDBC ResultSet as input and returns a data structure with all possible intersections, combinations and permutations of the data, pre-summarized at multiple levels for quick access.

A disk based production quality RTree based upon Guttman’s quadratic split algorithm having following features: Buffering with dirty write, Index joins, Tree Seeding, Window and NN queries, Runtime STR Packing capability, Completely Thread safe.

The Peach Validator is a small program used verify the application of the Lhun's algorithm to s.i.n numbers. This program is designed to offer some insight into writting program wrappers or GUI applications with python.