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software:rewdivisi2 [2010/11/02 11:34] eapontep created |
software:rewdivisi2 [2010/11/16 10:57] (current) eapontep |
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==== General ==== | ==== General ==== | ||
- | * Divisi | + | * Divisi2 |
- | * It is SVD (singular value decomposition) library for Python. | + | * It is a SVD (singular value decomposition) library for **Python**. |
- | * It requires numpy (numerical python, a standard library for scientifically | + | * Divisi |
- | * As far as I can see right now, it is necessary to develop or use another to collect the context vectors, etc.. | + | * As far as I can see right now, it is necessary to develop or use another |
+ | * Easy installation (around 5 minutes if you have numpy). | ||
* [[http:// | * [[http:// | ||
+ | * [[http:// | ||
+ | * **Note:** In a first run, Divisi2 didn't work. | ||
==== Installation ==== | ==== Installation ==== | ||
+ | * I presuppose that Python is already installed in your computer. Most distributions of linux include in their standard version Python. If you haven' | ||
+ | * The installation process is by itself quite simple -you will need just two commands. However a number of libraries are necessary to run Divisi2 and their installation is not quite simple, at least that is what I remember from installing numpy. In my case, I had to install (and maybe build) several libraries, in particular, ATLAS. | ||
+ | * To install: | ||
+ | - First install **pip**< | ||
+ | - This command will also install pysparse (in case you don't have it): <file bash> | ||
+ | - Now install **Divisi2**< | ||
+ | * For a further tutorial using [[http:// | ||
+ | |||
+ | ==== Technical Issues ===== | ||
+ | |||
+ | * Divisi2 utilizes Pysparce by means of a classes called SparseMatrix- Pysparce is can be seen as an extension of Numpy. It supports three formats for saving sparse matrices: | ||
+ | - Linked-list format | ||
+ | - Compressed sparse row format | ||
+ | - Sparse Skyline format | ||
+ | |||
+ | |||
+ | ==== Testing ==== | ||
+ | |||
+ | |||
+ | |||
+ | --- // | ||