Towards a machine-readable literature: finding relevant papers based on an uploaded powder diffraction pattern

A prototype application for machine-readable literature is investigated. The program is called pyDataRecognition and serves as an example of a data-driven literature search, where the literature search query is an experimental data set provided by the user. The user uploads a powder pattern together with the radiation wavelength. The program compares the user data to a database of existing powder patterns associated with published papers and produces a rank ordered according to their similarity score. The program returns the digital object identifier and full reference of top-ranked papers together with a stack plot of the user data alongside the top-five database entries. The paper describes the approach and explores successes and challenges.

Specification of the Crystallographic Information File format, version 2.0

Version 2.0 of the CIF format incorporates novel features implemented in STAR 2.0. Among these are an expanded character repertoire, new and more flexible forms for quoted data values, and new compound data types. The CIF 2.0 format is compared with both CIF 1.1 and STAR 2.0, and a formal syntax specification is provided.

publCIF: software for editing, validating and formatting crystallographic information files

publCIFis an application designed for creating, editing and validating crystallographic information files (CIFs) that are used in journal publication. It validates syntax and dictionary-defined data attributes through internal routines, and also provides a web interface to thecheckCIFservice of the International Union of Crystallography (IUCr), which provides a full crystallographic analysis of the structural data. The graphical interface allows users to edit the CIF either in its `raw' ASCII form (using a text editor with context-sensitive data validation and input facilities) or as a formatted representation of a structure report (using a word-processing environment), as well asviaa number of convenience tools (e.g.spreadsheet representations of looped data). Beyond file and data validation,publCIFprovides access to resources to facilitate preparation of a structure report (e.g.databases of author details, experimental data, standard referencesetc., either distributed with the program or collected during its use), along with tools for reference parsing, spell checking, structure visualization and image management.publCIFwas commissioned by the IUCr, both as free software for authors and as a tool for in-house journal production; the tool for authors is described here. Binary distributions for Linux, MacOS and Windows operating systems are available.