4169
An objective function is defined to impose lo-calization constraint , in addition to the non-negativity constraint in the standard NMF -LSB- 1 -RSB- .
 objective function, lo-calization constraint; non-negativity constraint, NMF
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 objective function, lo-calization constraint; non-negativity constraint, NMF