fix: factorization machines diverged

[zhenghaoz]

No description provided.

[codecov]

Codecov Report

Patch coverage: 25.00% and project coverage change: -0.10% ⚠️

Comparison is base (e3e44b1) 70.12% compared to head (941d1cf) 70.03%.

❗ Current head 941d1cf differs from pull request most recent head 5dc9ef6. Consider uploading reports for the commit 5dc9ef6 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #743      +/-   ##
==========================================
- Coverage   70.12%   70.03%   -0.10%     
==========================================
  Files          64       64              
  Lines       12166    12186      +20     
==========================================
+ Hits         8532     8535       +3     
- Misses       2854     2868      +14     
- Partials      780      783       +3     

Files Changed	Coverage Δ
base/progress/progress.go	0.00% <0.00%> (ø)
storage/cache/mongodb.go	80.46% <0.00%> (-0.54%)	⬇️
master/tasks.go	59.36% <33.33%> (-0.11%)	⬇️
model/click/model.go	78.47% <62.50%> (-0.46%)	⬇️
model/ranking/model.go	81.70% <100.00%> (ø)

... and 1 file with indirect coverage changes

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