diff --git a/analysis/inference.rst b/analysis/inference.rst
index 8be66388baff2f734782c57ed73ca4472e9653be..109709f494e4e6889c0d931b0f04e9712577b4d0 100644
--- a/analysis/inference.rst
+++ b/analysis/inference.rst
@@ -43,10 +43,21 @@ secondary mass satisfies :math:`m_2 \leq 3 M_{\odot}`.
 the final remnant compact object. This is calculated using the disk mass
 fitting formula from [#DiskMass]_ (Equation 4).
 
-For preliminary estimates based on the matched-filter pipeline results, the
-source properties are calculated using a supervised learning technique;
-mass-dependent rates are the same as those used for the classification. For
-parameter estimation, updated properties are calculated from posterior samples.
+The way that these probabilities are calculated for preliminary alerts differs
+for different search pipelines:
+
+- For GstLAL, the probabilities consider the uncertainty in the
+  matched-filter estimates of the template parameters. The probabilities are
+  calculated using supervised machine learning on a feature space consisting of
+  the masses, spins, and :term:`SNR` of the best-matching template, described
+  in [#MLEMBright]_.
+
+- For all other pipelines, the source property probabilities are reported as
+  exactly 0 or exactly 1 depending on whether the corresponding condition is
+  satisfied by the best-matching template. **In this case, these probabilities
+  do not capture uncertainty in the matched-filter estimates of the template
+  parameters, and should be interpreted with caution.**
+
 
 .. include:: /journals.rst
 
@@ -57,3 +68,7 @@ parameter estimation, updated properties are calculated from posterior samples.
 .. [#DiskMass]
    Foucart, F., Hinderer, T. & Nissanke, S. 2018, |PRD|, 98, 081501.
    :doi:`10.1103/PhysRevD.98.081501`
+
+.. [#MLEMBright]
+   Chatterjee, D., Ghosh, S., Brady, P. R., et al. 2020, |ApJ|,
+   :arXiv:`1911.00116`
diff --git a/changes.rst b/changes.rst
index 339b23b66f37963425802c6d9fb18bf46161cabf..d9e184c6c090ed8f80b0d282b0eb6b02342781f4 100644
--- a/changes.rst
+++ b/changes.rst
@@ -12,6 +12,9 @@ Version 17 (unreleased)
 
 .. rubric:: Data Analysis
 
+*  Add the reference to the source properties methods paper.
+   Provide details on the cases where the above method is used.
+
 .. rubric:: Alert Contents
 
 .. rubric:: Sample Code
diff --git a/spelling_wordlist.txt b/spelling_wordlist.txt
index dc48ecbfaf43f46691ea9a364628e2a535eb6803..fa9e0cffebd9d3e974a9b386b7641c4e461eb361 100644
--- a/spelling_wordlist.txt
+++ b/spelling_wordlist.txt
@@ -19,6 +19,7 @@ capabilities
 carée
 Cascina
 Caudill
+Chatterjee
 Chu
 coalescences
 comoving
@@ -43,6 +44,7 @@ Fortran
 Foucart
 geocenter
 Germain
+Ghosh
 glitching
 gnomonic
 Górski