new file:   demo.sh
	new file:   script/evaluation.py
	new file:   src/PMF/model.py
	new file:   src/PerPopular/personalPopular.py
	modified:   script/evaluation.py
	modified:   script/filterUserAndLocationByFreq.py
	modified:   script/segCheckinPair.py
	modified:   setenv.py
	modified:   src/tool.py
	modified:   src/Popular/globalPopular.py