takuti / flurs

:ocean: FluRS: A Python library for streaming recommendation algorithms

FluRS: Streaming Recommendation in Python

FluRS is a Python library for online item recommendation. The name indicates Flu-* (Flux, Fluid, Fluent) Recommender Systems which incrementally adapt to dynamic user-item interactions in a streaming environment.

• FluRS: A Library for Streaming Recommendation Algorithms at EuroSciPy 2017 (video)
• FluRS: A Python Library for Online Item Recommendation | takuti.me
• A repository takuti/stream-recommender uses FluRS v0.0.1 to write research papers.

Installation

pip install flurs

Usage

See documentation for detail.

flurs's Issues

Setup CI for Windows

Use AppVayor

TypeError: no supported conversion for types: (dtype('<U32'),)

I have a list of a dataset of user,item,context that I have mapped to a list of Event with

Event(User(e.user), Item(e.item), context=np.array([e.context]))

I am using a FM but I don't know what is p here so I tried the number of possible values for the context column:

recommender = FMRecommender(p=count_context_column_values)

I do:

recommender.initialize()

and then try to use it in an Evaluator:

evaluator = Evaluator(recommender, repeat=False)
for x in evaluator.evaluate(events_list):
    print(x)

But I always get the error:

TypeError: no supported conversion for types: (dtype('<U32'),)

From line 126 of the score method: u_mat = sp.csr_matrix(np.repeat(u_vec, n_target, axis=1))

Questions

1. why is this happening, how to fix?
2. what should I use for p
3. repeat=False in the evaluator means that not to consider repeated entries in the dataset??

Thank you for your help and time.

P.S.: I've tried without Evaluator and by calling the recommender.recommend function myself and it either complained about index out of range in the i_mat or, when I passed candidates with an empty or with a single 0 value it gave the same error as described above.

regularization for FM

data matrix usually spars, so may you clarify if you use regularization
Thanks

error installing on windows computer and python 3

Please help how install on Windows computer and Python 3

details about python installation are:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

D:\code>python
Python 3.5.4 |Anaconda custom (64-bit)| (default, Aug 14 2017, 13:41:13) [MSC v.
1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.

error message is
D:\code>pip install flurs
Collecting flurs
Downloading flurs-0.0.2.tar.gz
Requirement already satisfied: numpy in c:\anaconda3\lib\site-packages (from flu
rs)
Requirement already satisfied: scipy in c:\anaconda3\lib\site-packages (from flu
rs)
Requirement already satisfied: scikit_learn in c:\anaconda3\lib\site-packages (f
rom flurs)
Collecting mmh3 (from flurs)
Downloading mmh3-2.5.1.tar.gz
Building wheels for collected packages: flurs, mmh3
Running setup.py bdist_wheel for flurs ... done
Stored in directory: C:\Users\AppData\Local\pip\Cache\wheels\4d\57\63\2
79a1b015f85bafe80a65708340abde3313d0ed3a76e68beb9
Running setup.py bdist_wheel for mmh3 ... error
Complete output from command c:\anaconda3\python.exe -u -c "import setuptools,
tokenize;file='C:\Users\AppData\Local\Temp\pip-build-stf4mwne
\mmh3\setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().repla
ce('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" bdist_wheel -d
C:\Users\AppData\Local\Temp\tmpme3fog09pip-wheel- --python-tag cp35:
running bdist_wheel
running build
running build_ext
building 'mmh3' extension
creating build
creating build\temp.win-amd64-3.5
creating build\temp.win-amd64-3.5\Release
cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Ic:\anaconda3\include -Ic:\anacond
a3\include /EHsc /Tpmmh3module.cpp /Fobuild\temp.win-amd64-3.5\Release\mmh3modul
e.obj
error: command 'cl.exe' failed: No such file or directory

---

Failed building wheel for mmh3
Running setup.py clean for mmh3
Successfully built flurs
Failed to build mmh3
Installing collected packages: mmh3, flurs
Running setup.py install for mmh3 ... error
Complete output from command c:\anaconda3\python.exe -u -c "import setuptool
s, tokenize;file='C:\Users\AppData\Local\Temp\pip-build-stf4mwn
e\mmh3\setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().rep
lace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --re
cord C:\Users\AppData\Local\Temp\pip-4_zt8393-record\install-record.txt -
-single-version-externally-managed --compile:
running install
running build
running build_ext
building 'mmh3' extension
creating build
creating build\temp.win-amd64-3.5
creating build\temp.win-amd64-3.5\Release
cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Ic:\anaconda3\include -Ic:\anaco
nda3\include /EHsc /Tpmmh3module.cpp /Fobuild\temp.win-amd64-3.5\Release\mmh3mod
ule.obj
error: command 'cl.exe' failed: No such file or directory

----------------------------------------

Command "c:\anaconda3\python.exe -u -c "import setuptools, tokenize;file='C:
\Users\AppData\Local\Temp\pip-build-stf4mwne\mmh3\setup.py';f=get
attr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.clo
se();exec(compile(code, file, 'exec'))" install --record C:\Users\App
Data\Local\Temp\pip-4_zt8393-record\install-record.txt --single-version-external
ly-managed --compile" failed with error code 1 in C:\Users\AppData\Local
Temp\pip-build-stf4mwne\mmh3\

D:\code>

Type statically and validate with `mypy`

Better to introduce the type checker for development: http://mypy-lang.org/

error while running import nltk

i have installed python,nltk .did coding related stemming .
everything was fine.
but suddenly error came by showing that 'python' is not recognized as internal and external command
reinstalled python 2.7
now while importing nltk below error is showing

my project has come to end suddenly it happen
how to resolve this
thank you in advance

Add examples with non-MovieLens positive-only feedback data

e.g., criteo click stream

error : ValueError: Attempted relative import in non-package

\Anaconda2\Lib\site-packages\flurs\base.py", line 1, in
from .data.entity import User, Item

ValueError: Attempted relative import in non-package

pls help

Revising project paths

• Evaluation related code into a unified module
• metric -> metrics
• Modules under data are bit confusing

Benchmark with alternative recommender libraries (in a static setting)

• libFM
• fastFM
• librec

Support creating User/Item object from arbitrary ID, rather than sequential index

FluRS should internally hold ID-index mapping.

updated are not on pip for appveyor and etc

you added something like
https://github.com/takuti/flurs/tree/master/appveyor
but last pip update is on 2017-08-31 version flurs-0.0.2.tar.gz (md5)
may you update please pip instalaltion
by the way what this appveyor doing for Windows OS?

error running movielens1m.py

I have installed flurs from pip
and try to tun movielens1m.py

it is the error message
File "d:\Recommender systems\code\flurs_master_FEb20\flurs-master\examples\movielens1m.py", line 4, in
from flurs.datasets import fetch_movielens

builtins.ModuleNotFoundError: No module named 'flurs.datasets'

my guess it tries to use function
fetch_movielens(data_home=None, size='100k')
from
https://github.com/takuti/flurs/blob/master/flurs/datasets/movielens.py