Renamed logistic function to match naming convention, addressed PR comments

Author: jxmils

ACKNOWLEDGEMENTS.md

@@ -6,5 +6,5 @@ Thank you to everyone here for your impactful contributions!
 - Rich Caruana
 - Avinava Dubey
 - Manolis Kellis
-- Jason Miller
-- Eric Xing
+- Eric Xing
+- Jason Miller

contextualized/functions.py

@@ -18,7 +18,7 @@ def identity(x):
     return x
 
 
-def logistic(x, slope, intercept):
+def logistic_link(x, slope, intercept):
     return 1 / (1 + torch.exp(-x * slope - intercept))
 
 
@@ -45,14 +45,14 @@ def make_fn(base_fn, **params):
     return partial(base_fn, **params)
 
 
-def logistic_constructor(slope=1, intercept=0):
+def logistic_link_constructor(slope=1, intercept=0):
     """
     Creates a single-parameter logistic function with slope m and offset b.
     :param slope:  (Default value = 1)
     :param intercept:  (Default value = 0)
 
     """
-    return make_fn(logistic, slope=slope, intercept=intercept)
+    return make_fn(logistic_link, slope=slope, intercept=intercept)
 
 
 def identity_link_constructor():
@@ -85,6 +85,6 @@ def softmax_link_constructor(slope=1, intercept=0):
 LINK_FUNCTIONS = {
     "identity": identity_link_constructor(),
     "linear": linear_link_constructor(),
-    "logistic": logistic_constructor(),
+    "logistic": logistic_link_constructor(),
     "softmax": softmax_link_constructor(),
 }