[](https://github.com/Nikolay-Lysenko/readingbricks/actions/workflows/main.yml)
[](https://codecov.io/gh/Nikolay-Lysenko/readingbricks)
[](https://codeclimate.com/github/Nikolay-Lysenko/readingbricks/maintainability)
[](https://pypi.org/project/readingbricks/)
# ReadingBricks
## Overview
It is a Flask app for reading and searching notes from a personal knowledge base. Here, knowledge base means a collection of Jupyter notebooks with Markdown cells which may have tags and may contain links to each other. So, the approach resembles [Zettelkasten](https://en.wikipedia.org/wiki/Zettelkasten).
Features of the search system include:
- [x] Separate spaces for fields of knowledge
- [x] Search by single tag
- [x] Search by expressions consisting of tags, logical operators, and parentheses
- [x] Full-text search with TF-IDF
- [ ] Search within kNN-index built on vector representations of notes
The repository can be used either as a whole (with notes written by me) or as a Python package providing an interface to your notes.
## Usage as existing knowledge base
The most valuable part of this project is not a software. It is the [notes](https://github.com/Nikolay-Lysenko/readingbricks/tree/master/notes) itself. When writing them, I try to explain complicated things in a way that allows efficient grasping with as less ambiguity as possible. I write mostly on machine learning, but new topics are coming. Alas, there is a potential dealbreaker — as of now, the notes are in Russian only. If it does not suit you, please go to the [next section](#usage-as-an-interface).
To start with, you need to clone the repository to your local machine and install `readingbricks` package. This can be done by running the below commands from a terminal:
```bash
cd /your/path/
git clone https://github.com/Nikolay-Lysenko/readingbricks
cd readingbricks
python -m venv venv
source venv/bin/activate
pip install -r requirements.txt
pip install -e .
```
Every time you want to start a Flask application, run these commands:
```bash
cd /your/path/readingbricks
source venv/bin/activate
python -m readingbricks
```
The last command launches a local server. After it is ready, open your web browser and go to `127.0.0.1:5000`. See [interface guide](#interface-guide) for further details.
## Usage as an interface
To make your own knowledge base compatible with the app, it must be represented as follows:
```
notes_directory
├── field_one
│ ├── notebook_one.ipynb
│ ├── ...
│ └── notebook_n.ipynb
├── ...
└── field_k
├── notebook_one.ipynb
├── ...
└── notebook_m.ipynb
```
Here, fields stand for independent domains (say, machine learning, chemistry, music theory, etc.). Within a particular field, distribution of notes among Jupyter notebooks can be arbitrary. For example, you may simply keep all notes in a single notebook.
All cells of a notebook must be Markdown cells starting with `## {title}`. To tag a note, activate tagging facilities with 'View -> Cell Toolbar -> Tags'. To add link from one note to an other note, special patterns `__root_url__/{field}/notes/{note_title}` and `__home_url__/notes/{note_title}` can be used. While the latter is less verbose, only the former supports cross-field links.
So far so good. The knowledge base is ready, but the app must be configured to use it. Create somewhere a JSON file that looks like this:
```json
{
"LANGUAGE": "en",
"FIELDS": ["field_one", "field_two"],
"FIELD_TO_ALIAS": {"field_one": "Field #1", "field_two": "Field #2"},
"FIELD_TO_SEARCH_PROMPT": {"field_one": "the_most_popular_tag", "field_two": "the_most_popular_tag"},
"NOTES_DIR": "/absolute/path/to/notes_directory",
"RESOURCES_DIR": "/any/directory/for/storing/internal/files"
}
```
Now, let us install the Python package:
```bash
source /your/path/venv/bin/activate
pip install readingbricks
```
All that remains is to launch the app:
```bash
python -m readingbricks -c /absolute/path/to/config.json
```
As in the previous section, go to `127.0.0.1:5000`. Known bug is that some minor interface elements are in Russian regardless of notes language. I am still seeking an elegant and maintainable solution to this problem.
## Interface guide
The web interface is quite self-explanatory.
The only non-trivial control element is search bar which is located at home pages of fields. It can operate in three modes:
* query in natural language (e.g., `transformers in recommender systems`);
* query as expression consisting of tags, logical operators, and parentheses — special keyword `tags:` is required (e.g. `tags: transformers AND recommender_systems`);
* combination of above options — symbols before `tags:` form natural language query and symbols after it form tag expression (e.g., `transformers tags: recommender_systems`).
If at least part of a query is in natural language, results are sorted by TF-IDF. Else, order of results depends on lexicographic positions of their notebooks inside their field directory and on positions of cells inside notebooks.
Enjoy reading!
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Create somewhere a JSON file that looks like this:\n```json\n{\n \"LANGUAGE\": \"en\",\n \"FIELDS\": [\"field_one\", \"field_two\"],\n \"FIELD_TO_ALIAS\": {\"field_one\": \"Field #1\", \"field_two\": \"Field #2\"},\n \"FIELD_TO_SEARCH_PROMPT\": {\"field_one\": \"the_most_popular_tag\", \"field_two\": \"the_most_popular_tag\"},\n \"NOTES_DIR\": \"/absolute/path/to/notes_directory\",\n \"RESOURCES_DIR\": \"/any/directory/for/storing/internal/files\"\n}\n```\n\nNow, let us install the Python package:\n```bash\nsource /your/path/venv/bin/activate\npip install readingbricks\n```\n\nAll that remains is to launch the app:\n```bash\npython -m readingbricks -c /absolute/path/to/config.json\n```\n\nAs in the previous section, go to `127.0.0.1:5000`. Known bug is that some minor interface elements are in Russian regardless of notes language. 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