Open Source Search Software

Bowtie, an ultrafast, memory-efficient short read aligner for short DNA sequences (reads) from next-gen sequencers. Please cite: Langmead B, et al. Ultrafast and memory-efficient alignment of short DNA sequences to the human genome. Genome Biol 10:R25.

Search and replace operations on file content accross multiple files. Recursive operations within entire directory trees. FAR comes with support for regular expressions (regex) over multiple lines, automatic backup and various character encodings. Run grep like extractions to condense or rearrange sources, or perform bulk file renaming.

Efficient indexing and searching (1M Weibo 500M data is indexed in 28 seconds, search response time is 1.65 milliseconds, and search QPS is 19K). Support Chinese word segmentation (concurrent word segmentation using the sego word segmentation package, speed 27MB/sec). Support to calculate the proximity distance of keywords in the text (token proximity). When a request to add a document to the index comes in, the main coroutine will send the text to be segmented to a word segmentation coroutine through a channel, and the coroutine will segment the text and send it to a word segmentation through another channel. Indexer coroutines. The indexer coroutine builds an inverted index from the search keyword to the document, and the inverted index table is stored in memory for quick recall. The main coroutine receives the user's request, segments the request phrase in the main coroutine, and then sends it to the indexer through the channel.

A universal suite of utilities for large corpora processing.

Looks at file names in a directory and finds common parts in them trying to search similar and repeated ones. Useful when you have multiple files which differ in checksum and somehow in names. You can collect them and make a decision afterwards.

Like Unix-Tail BUT: - Runs with or without GUI - Suspend and resume tailing at runtime - Can monitor a set of Files - Print output to a textfield, stdout or file - Runs in "Grep" mode, too (Read files once) - (Almost) the same options as Unix-Tail

UProm Requirement Management System (traceability and requirement coverage). Includes : - An admin module to manage SCRUM Project and tree of requirements - A multi-user Web-based client - Tools for databases management (HSQLDB, PostGreSQL,...) UProm

csart - Clever-Search-And-Replace-Text Search, find and replace text in named files or recursive in all directories (-r). If choosen, strings are only replaced if another key-string occures in the line (-w)

The "Lib45" string search library provides routines that generate fast string searching code at run-time. The library is written in Assembly language for Intel 32bit CPUs.