moreka

from functools import partial
from typing import Callable, List


def deriv_squared_loss(x: float) -> float:
    """Derivative of the squared loss l(x) = 1/2 x^2"""
    return x


def deriv_huber_loss(x: float, delta: float) -> float:

moreka

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moreka

Broadcast Code Readme

This project is Python2-compatible and have issues while running with python 3. So please use Python2 (We used Anaconda's CPython distribution, maybe PyPy would be faster, but I don't even know whether it's OK to move to PyPy)

1. Data Access

All data access related classes are in data package. We suppose there are two SQLite databases, namely db.sqlite3 and links.sqlite3 which are stored on shared memory (/dev/shm) for faster access (they should be copied, in case of vanishing). First DB, holds tweets table with following schema:

CREATE TABLE tweets (user_id integer, tweet_time integer);