From 92cdbe6fb9ae715373a12712a66d839436aed1d2 Mon Sep 17 00:00:00 2001
From: HydrogenSulfate <490868991@qq.com>
Date: Fri, 29 Apr 2022 13:53:21 +0800
Subject: [PATCH] add ref for emlloss

---
 ppcls/loss/emlloss.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ppcls/loss/emlloss.py b/ppcls/loss/emlloss.py
index 973570389..38b707fe1 100644
--- a/ppcls/loss/emlloss.py
+++ b/ppcls/loss/emlloss.py
@@ -23,6 +23,11 @@ from .comfunc import rerange_index
 
 
 class EmlLoss(paddle.nn.Layer):
+    """Ensemble Metric Learning Loss
+    paper: [Large Scale Strongly Supervised Ensemble Metric Learning, with Applications to Face Verification and Retrieval](https://arxiv.org/pdf/1212.6094.pdf)
+    code reference: https://github.com/PaddlePaddle/models/blob/develop/PaddleCV/metric_learning/losses/emlloss.py
+    """
+
     def __init__(self, batch_size=40, samples_each_class=2):
         super(EmlLoss, self).__init__()
         assert (batch_size % samples_each_class == 0)