# Welcome to Agatha’s documentation!¶

Agatha is a machine-learning powered literature management tool.

The tool allows you to train a scoring model for an existing evaluated literature database. This allows you to quickly pre-score other literature based on the same model.

This software is licensed under the Modified BSD License. See LICENSE.txt for the full text of the license.

## Installation¶

Agatha requires python 3 and can be installed via:

$python setup.py install  Please see the requirements.txt file for external package dependencies. ## Quickstart¶ For the purpose of Agatha, all literature is identified by a unified resource identifier (URI). Common examples for URIs used in this context are doi://10.1000/xyz123, arxiv://1501.0001, or http:://www.example.com. For the purpose of creating a training set, create a file containing a list of URIs and a score value, e.g.: # input.txt doi://10.1000/xyz123 0.2 doi://10.1010/abc456 0 arxiv://1501.001 0.3 http://www.example.com 0.2 # and so on  The score is a value between 0 and 1, where 0 means not relevant and 1 means highly relevant. Training for not relevant entries actually improves the model! Agatha can help you to create a training set, see training. Next, we train the model and store it in a file called model.json. agatha train input.txt > model.json  Finally we can take a different set of data and score it with this model: agatha score --model model.json literature.txt >> scored.txt  The scored.txt will contain the URIs and the score value based on the model sorted by score. The literature.txt file has the same format as the input.txt file, with the only difference that the score-value may be missing. ## Training¶ There are two primary ways of creating a training set: batch and interactively. The batch method is simply appending the same score value to a input set which is useful when you have pre-categorized libraries. $ bib2uri mylib.bib > mylib.txt
$agatha score mylib.txt -s 0.8 >> train.txt  Here, we are using the bib2uri script, which is automatically installed with Agatha to extract the URIs from the BibTeX library file. You can use Agatha interactively to go through a new list of unrated resources. Agatha will attempt to obtain as many information about the specified resource and ask you to rate it on a scale from 0 to 5. $ agatha score input.txt --ignore train.txt >> train.txt

Scoring 'doi://10.1103/PhysRevLett.70.2924':
Journal: Phys. Rev. Lett.
Title: Formation of a dodecagonal quasicrystalline phase in a simple
monatomic liquid
Authors: Dzugutov, Mikhail
Keywords: None
Abstract: In a recent paper M. Dzugutov, Phys. Rev. Lett. 70 2924
(1993), describes a molecular dynamics cooling simulation where he
obtained a large monatomic dodecagonal quasicrystal from a melt. The
structure was stabilized by a special potential [Phys. Rev. A46 R2984
(1992)] designed to prevent the nucleation of simple dense crystal
structures. In this comment we will give evidence that the ground
state structure for Dzugutov's potential is an ordinary bcc crystal.
Enter score [s|1..5] (s):


You can either enter a score or ‘s’ for skip. If you just hit enter, the default value will be used which is either skip or the value already provided by the input set.

We are using the -i/--ignore argument to skip all resources that are already in the output set. This enables us to stop and restart the scoring process at any point in time.

Note

The interactive scoring scale ranges from 0 to 5 instead of 0 to 1 to allow fast and intuitive 5-star-rating. The value is always normalized before storing.

## Sources¶

To fetch new literature and obtain resource information, Agatha supports the configuration of sources. To configure a source, simply create a agatha_config.py file in your home directory. For example, if you would like to specify all BibTeX-files in your home directory as a source, you would create a config file like this:

# ~/agatha_config.py
from agatha.sources import BibTexLibrary

sources = [
BibTexLibrary('~/*.bib')  # wild-cards are allowed!
]