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A python package for sampling from determinantal point processes

Project description


A python package for sampling from determinantal point processes. Below are instances of sampling from a bicluster and from a random set of points using pyDPP. Refer to examples and references for more information.

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Usage example:


>>> from pydpp.dpp import DPP
>>> import numpy as np
>>> X = np.random.random((10,10))
>>> dpp = DPP(X)
>>> dpp.compute_kernel(kernel_type = 'rbf', sigma= 0.4) # use 'cos-sim' for cosine similarity
>>> samples = dpp.samples() # samples := [1,7,2,5]
>>> ksamlpes = dpp.sample_k(3) # ksamples := [5,8,0]


To get the project's source code, clone the github repository:


$ git clone
$ cd pyDPP

Create a virtual environment and activate it. [optional]


$ [sudo] pip install virtualenv
$ virtualenv -p python3 venv
$ source venv/bin/activate

Next, install all the dependencies in the environment.


(venv)$ pip install -r requirements.txt

Install the package into the virtual environment.


(venv)$ python install

- Numpy
- Scipy

To run the example jupyter notebook you need install jupyter notebook, sklearn and matplotlib.

The package has been test with python 2.7 and python 3.5.2


- Kulesza, A. and Taskar, B., 2011. k-DPPs: Fixed-size determinantal point processes. In Proceedings of the 28th International Conference on Machine Learning (ICML-11) (pp. 1193-1200). [`paper <>`__]

- Kulesza, A. and Taskar, B., 2012. Determinantal point processes for machine learning. Foundations and Trends® in Machine Learning, 5(2–3), pp.123-286. [`paper <>`__]

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