Lecture notes on folksonomies and classification

8/6/2019 Lecture notes on folksonomies and classification

1/48

Folksonomies

How social tagging has changed the way we deal with

information and knowledge

Speaker:

Luigi [email protected]

Communication and societyProf. Nicoletta Di Blas


2/48

Luigi SpagnoloFolksonomies

!"#$%&'#&($

%)$%&'#&$

!"#$%&'(%


3/48


3!"#$*+,&-&.$%)$/-,#*$

!! )*(%01'#2#'$3#,$+&'$",'-%-4$*#-(4$56785$,+**+%1$9-:#(%.///0//,2(/(3-,4(0+&56%7&'2"8%%9:%7"8%;-($1%$9#&(%1-*$%&$>%&*'$9&%,*#?$>"%(#$#*%@A#14$(%*AB%1$'+'$1%4$#2+(4$+1$(%?#$"#2-:%10%.000=%F-%/"-%'"$G#"16%$*,-%,','"$(%*&@(%/"-%B&11&/(2%38%"'%(C+(--,D(%

'#9((+%10%)*(%


4/48


4!"#$*+,&-&.$%)$/-,#*$

!! )*(%01'#2#'$3#,$+&'$",'-%-4$*#-(4$56785$,+**+%1$9-:#(%.///0//,2(/(3-,4(0+&56%7&'2"8%%9:%7"8%;-($1%$9#&(%1-*$%&$>%&*'$9&%,*#?$>"%(#$#*%@A#14$(%*AB%1$'+'$1%4$#2+(4$+1$(%?#$"#2-:%10%.000=%F-%/"-%'"$G#"16%$*,-%,','"$(%*&@(%/"-%B&11&/(2%38%"'%(C+(--,D(%

'#9((+%10%)*(%


5/48


5/#)%$4"#$>#,M$!! !(&@1(%*"D(%"1/"8-%B"+(2%$*(%9&%,*#?%&BJ%N+1'+1:%@*8-,+"1%&3K(+$-%."'2%,'B"L&'=%

M! !#,5"#8%"1,$8J%%O1'+1:$+1)%&?-B%1$P$?#?,#&+1:$-1'$4#**+1:$%4"#&($

M! N(B(%2,E,$"1%#(D&1GL&'J%%O1'+1:$+1)%&?-B%1$P$O1'+1:$4"#$9".(+"+


6/48


6!"#$%&'#&($%)$%&'#&$J3#+1,#&:#&LS5$!! N+&(4$%&'#&J%O#E"',4,'E%&3K(+$-%$*(5-(1D(-%N&&H-%&'%-*(1D(-6%2&+G5('$-%,'%+"3,'($-6%@*&$&-%,'%"13G5-P%

T".(+%&*'%"%F#,-$&$1(U-%+"$(E,(-V%W,''("G-%X-%$"C&'&58%&B%-@(+,(-%

S("#+*,'E%5("'-J%!"#$%&'(%/"1H,'E6%3#&/-,'E6%#(18,'E%&'%

5(5%"'2%1,3#"#,"'%(C@(#L-(%%


7/48


7!"#$%&'#&($%)$%&'#&$J3#+1,#&:#&LSU$!! I#


8/48


8!"#$%&'#&($%)$%&'#&$J3#+1,#&:#&LSV$!! !"+&'$%&'#&%,E,$"1%,'B"L&'%Y%2,E,$"1%?#4-'-4-$a&%5(%@*8-,+"1%+&'-$#",'$-\%

M! F%2,E,$"1%+&'$('$%+"'%("-,18%-$"8%,'%$/&%%5(%2,R(#('$%@1"+(-%

M! 7($"[,'B"L&'%


9/48


9!"#$%&'#&($%)$%&'#&$J3#+1,#&:#&LS8$!! c'%$*(%2,E,$"1%/~%/(%B&+G-%&'%*#-R#($&-4"#&$4"-1$4#($

d&+G-%&'%G',$-%&B%,'B"L&'%#"$*(#%$*"'%"EE#(E"$(%e0E0%,'%$*(%f8',1^Z"--(g(^Z`%(#"J%

M! ?(%3#&GE*$%5",'18%-*,A?(6%$*('%/(%1,-$(2%$&%-&'E-%M! )*(%@#&2G+L&'%+&-$-%#(_G,#(2%$&%-(11%"13G5-%

e0E0%,'%,!&2^,)G'(-%(#"J%

M! ?(%3G8%5",'18%4&-


10/48


11/48


11

!! 3#,(+4#(%*"D(%."'2%@"#$18%-L11%"#(=%3(('%'#(+:1#'%/,$*%$*(%(-?#$9"+*%(%9".$%)$9'+:+4-*$+1)%&?-B%1$

"%*,(#"#+*8%Y%B(/%+&'$#&11(2%5($"2"$"%

!"#$3#,$57Y$


12/48


12

!! F++(--%-$#"$(E8%,-%5",'18%3"-(2%&'%*,(#"#+*,+"1%,'B"L&'%"%4-2%1%?+#($

!! 7G1L@1(%*,(#"#+*,(-%")-


13/48


13

!! S&5(%$(#5-%"#(%(_G,D"1('$%.-8'&'85-J%(0E0%=%"%


14/48


14E#-*+4.$+($-?,+:%A(S5$!! ?*"$%-$#"'E(%"',5"1%,-%$*,-j%!1"$8@G-\%

-+,('LA+%$"C&'&5,-$-%/(#(%"$%A#-$%+&'D,'+(2%$*"$%"%-H,11(2%F-,"'%$"C,2(#5,-$%*"2%-(/'%$*(%3,11%&B%"%2G+H%$&%$*(%-H,'%&B%"%5&1("-%"%*&"C0$


15/48


15E#-*+4.$+($-?,+:%A(SU$

!! ?*&%,-%$*,-%EG8j%%


16/48


16E#-*+4.$+($-?,+:%A(SV$

!! S&5(%@&--,31(%"'-/(#-P%b&*'%k"53&%S81D(-$(#%%S$"11&'(%F'%,'D,'+,31(%*(#&%F%3,g(#%/"#%D($(#"'%)*(%D,&1('$%F5(#,+"'%

,'D"2(#%)*(%@(#-&',A+"L&'%&B%3#G$(%B+(%

F11%&B%$*&-(%"'2%"'8$*,'E%(1-(%$*"$%5"8%"@@18P%


17/48


17E#-*+4.$+($-?,+:%A(SU$!! ?*"$%@1"+(%,-%$*,-j%

I47$T#4#&(,A&:6%EA((+-%%;#1+1:&-'\$HIIEj%N&$*j%%%)*&+,%-.,/.$&$0%"'111.)*,'E-%5"8%+*"'E(%


18/48


18GR#&.$


19/48


19GR#&.$


20/48


20!-::+1:$+1$[?-Q%1$

!! l&/%$&%A'2%"'%*,-$,+"1%E#"@*,+%'&D(1j%Z&53,'(%G-(#%$"E-%.(0E0%2*4,2/%Fa`%5*0'6.5"0.,,=%


21/48


21

!! N%*=($]$4-2%1%?.$P$)%*=(%1%?.%hS&%$*(%G-(#[+#("$(2%3&g&5[G@%+"$(E,+"1%-$#G+$G#(%

2(D(1&@5('$%/,$*%"'%(5(#E('$%$*(-"G#G-%/&G12%3(+&5(%"%d&1H-&'&58jimno!&-$(2%&'%$*(%5(53(#-%5",1,'E%1,-$%&B%$*(%c'B"L&'%F#+*,$(+$G#(%c'-L$G$(%&'%bG18%;p6;


22/48


22[$4.9+


23/48


23_%BR-B%1($)%&$4-::+1:$

!! )"EE,'E%-$"#$-%B#&5%"%9#&(%1-*$1##'$

N&&H5"#H,'E%/(3%@"E(-%.`(10,+,&0G-=%O#E"',4,'E%+&'$('$-%+#("$(2^G@1&"2(2%38%$*(%G-(#%

M! !*&$&-%.d1,+H#=%%M! f,2(&-%.]&G$G3(=%M! !#&2G+$-%.F5"4&'=%M! N&&H-%,'%8&G#%1,3#"#8%.W,3#"#8)*,'E=%M! !(&@1(%$*"$%"@@("#%,'%"%@*&$&%.d"+(3&&H=%

e"-(%&B%G-(J%$"E-%"#(%-,5@1(6%(C$(5@"#86%T(C,31(%5($"2"$"%M! ]&G%KG-$%"22%"'8%$(#5%$*"$%+&5(%,'%8&G#%5,'2%"'2%8&G%

+&'-,2(#%G-(BG1%%


24/48


24`+a#$9%((+,*#$


25/48


25!"#$!"#$%$%)$4-:(S5$

!! !&/(#%1"/%

7"'8%G-(#-%G-(%$*(%-"5(%B(/%$"E-%d(/%$"E-%"#(%G-(2%5"'8%L5(-%38%$*(%-"5(%G-(#%7"'8%@*('&5('"%B&11&/%$*,-%1"/%%

M! W"'EG"E(%G-(%M! `,-$#,3GL&'%&B%#(-&G#+(-%

%

%


26/48


26!"#$!"#$%$%)$4-:(b$4-:$


27/48


27!"#$!"#$%$%)$4-:(SV$!! )"E-%+"'%*(1@%8&G%A'2%5(%&'%"%$&@,+%T+R%4$,&%>(+1:$&'%$"E%"--,E'(2%$&%"'%&3K(+$%

%

%


28/48


28!"#$!"#$%$%)$4-:(S8$!! d&1H-&'&5,(-%+"'%*(1@%8&G%A'2%@(&@1(%/,$*%-"5(%,'$(#(-$-%."'2%-&%2,-+&D(#%'(/%#(-&G#+(-=%

%

%


29/48


29!"#$!"#$%$%)$4-:(S6$!! )"E-%+"'%+&53,'(2%$&E($*(#%$&%3G,12%G@%'(/%28'"5,+%+1"--,A+"L&'-%e0E0%ha&'[A+L&'"1%*,-$,+"1%/H-%&'%??cci%%"%"+(4%&.\$>>++\$XO


30/48


30!"#$!"#$%$%)$4-:(Sc$!! )"E-%+"'%3(%-$"L-L+"118%"'"1,4(2%$&%A'2%+#(1"L&'-%"'2%h+1G-$(#-i%&B%G-"E(%

%

%


31/48


31G24&-


32/48


32G24&-


33/48


33G24&-


34/48


34G24&-


35/48


35G24&-


36/48


36G24&-


37/48


37!"#$!"#$%$%)$4-:(b$4%$(A??-&+Q#$!! )"E-%"#(%"%B%&B%


38/48


38!"#$)%A&$*->($%)$4"#$^A1:*#$J3#+1,#&:#&LS5$

90! d,1$(#%&'%$*(%/"8%&G$6%'&$%$*(%/"8%,'%?"8%,'J%2(-,E'(#-%.,'B"L&'%"#+*,$(+$G#(=%+*&-(%

"%+&'$#&11(2%"'2%/(11%"++(@$(2%D&+"3G1"#8%&B%$(#5-B%+1"--,A+"L&'%

?"8%&G$J%"'%G'+&'$#&11(2%-($%&B%$"E-%,-%E,D('%$&%$*(%G-(#-V%$*(%A1$(#%,-%$*(%@&@G1"#,$8%"'2%G-"E(%

;0! !G$%("+*%1("B%&'%"-%5"'8%3#"'+*(-%"-%@&--,31(%!#&D,2,'E%"-%5"'8%$"E-%"-%8&G%/"'$^+"'%)*,-%5"H(-%$*(%2(-+#,@L&'%&B%#(-&G#+(-%5(%

h"++G#"$(i%


39/48


39!"#$)%A&$*->($%)$4"#$^A1:*#$J3#+1,#&:#&LSU$

r0! eD(#8$*,'E%,-%5($"2"$"%"'2%(D(#8$*,'E%+"'%3(%"%1"3(1%7($"2"$"%,-%KG-$%/*"$%8&G%G-(%B%-("#+*^3#&/-,'E%"$"%,-%/*"$%KG-$%8&G%1&&H%B%)*(8%"#(%,'$(#+*"'E("31(\%

p0! t,D(%G@%+&'$#&1%u-(#-%*"D(%$*(%@&/(#%&B%"22,'E%5($"2"$"%(-,E'(#-%KG-$%2(A'(%$*(%h#G1(-%&B%$*(%E"5(i%


40/48


40T&%,*#?($>+4"$4-::+1:S5$

!! !#&31(5-%/,$*%9


41/48


42/48


42

!! I#?-1B#,%)*(%E&"1J%%&:-1+Q+1:$+1)%&?-B%1$+1$-$JA1+R%-.$$*"$%+"'%3(%#-(+*.$A1'#&(4%%'$J-1'$


43/48


43

I#?-1B#,$(A99%&4#&($!! h)"E-%"#(%$&&%5(--8%"'2%

"53,E&G-%"'2%-&%'&$%-G,$"31(%B%@#&B(--,&'"1%2&5",'-i%

!! h)"E-%+"''&$%#,E&G-18%*"'21(%(_G,D"1('+(6%*,(#"#+*86%"'2%&$*(#%-$#,+$%-(5"'L+%#(1"L&'-*,@-i%

!! h)"E-%"#(%'&$%5"+*,'([#("2"31(i%

[1$+'#%*%:+


44/48


44

!! NG,12,'E-6%"'2%-&+,($8%"-%"%/*&1(6%"#(%+&'-$#G+$-%&B%-(D(#"1%1"8(#-%("+*%/,$*%"%G',_G(%"'2%-G,$"31(%#"$(%&B%

+*"'E(%.N#"'2=%e0E0%$*(%BG#',$G#(%+*"'E(-%5(%#"@,218%$*"'%$*(%-$#G+$G#(%&B%3G,12,'E-%

!! F1-&%/(3%"@@1,+"L&'-%"#(%5"2(%&B%1"8(#-%$*"$%(D&1D(%/,$*%"%2,R(#('$%!"2$..7D,11(=%S(5"'L+%/(3%,-%E&&2%B%,'B#"-$#G+$G#(%

d&1H-&'&5,(-%+"'%"2"@$%#"@,218%$&%+*"'E(-%F%-8'(#E8%,-%@&--,31(%3($/(('%2,R(#('$%

,'B"L&'%"#+*,$(+$G#(%"@@#&"+*(-6%"++,'E%$&%$*(%-@(+,A+%2&5",'%"'2%,$-%#(_G,#(5('$-%

T-


45/48


46/48


46

!! d"+($(2%$"EE,'E%)"E-%"#(%E#&G@(2%/,$*%#(-@(+$%$&%$*(%

2,5('-,&'%$*(8%2(-+#,3(6%(0E0%B%"'%"#$/HJ%M! )&@,+%M! )(+*',_G(%M! W&+"L&'%M! !(#-&'"E(-%@$#"8(2%%M! 000%

u-(2%B%B"+($(2%3#&/-,'E^-("#+*%.@#&E#(--,D(%A1$(#,'E%&B%#(-G1$-=%

!! S(5"'L+%$"EE,'E%%)*(%$(#5%G-(2%"-%$"E%+"'%*"D(%"%2(A',L&'%$*"$

+1"#,A(-%$*(%5("','E%.w,E)"E=%u-,'E%$"E-%"-%5($"2"$"%,'%-(5"'L+%/(3%

!%>-&'($-1'$-1$#R%*AB%1$%)$4-::+1:$


47/48


47

!! d&1H-&'&5,(-%"#(%,''&D"LD(%3(+"G-(%@G$%(#%,'%$*,'E-%'.1-?+


48/48

Questions?

Thank you for your attention!

Lecture notes on folksonomies and classification

Documents