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DTSTART:20270314T030000 RDATE:20271107T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20280312T030000 RDATE:20281105T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20290311T030000 RDATE:20291104T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20300310T030000 RDATE:20301103T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20310309T030000 RDATE:20311102T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20320314T030000 RDATE:20321107T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20330313T030000 RDATE:20331106T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20340312T030000 RDATE:20341105T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20350311T030000 RDATE:20351104T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20360309T030000 RDATE:20361102T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT BEGIN:DAYLIGHT DTSTART:20370308T030000 RDATE:20371101T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 TZNAME:America/New_York EDT END:DAYLIGHT END:VTIMEZONE BEGIN:VEVENT UID:2efc50f57a281fd09c9cfc93af303897 CATEGORIES:What is cognitive science?:Fall 2012 CREATED:20151203T141543 SUMMARY:An Axiomatic Approach to Tie-Strength Measures LOCATION:Rutgers University\, Department of Computer Science DESCRIPTION:
Given a set of people and a set of events attended by them, we address t
he problem of measuring connectedness or tie strength between each pair of
persons. The underlying assumption is that attendance at mutual events give
s an implicit social network between people. We take an axiomatic approach
to this problem. Starting from a list of axioms, which a measure of tie str
ength must satisfy, we characterize functions that satisfy all the axioms.
We then show that there is a range of tie-strength measures that satisfy th
is characterization.
A measure of tie strength induces a ranking
on the edges of the social network (and on the set of neighbors for every
person). We show that for applications where the ranking, and not the absol
ute value of the tie strength, is the important thing about the measure, th
e axioms are equivalent to a natural partial order. To settle on a particul
ar measure, we must make a non-obvious decision about extending this partia
l order to a total order. This decision is best left to particular applicat
ions. We also classify existing tie-strength measures according to the axio
ms that they satisfy; and observe that none of the "self-referential" tie-s
trength measures satisfy the axioms. In our experiments, we demonstrate the
efficacy of our approach; show the completeness and soundness of our axiom
s, and present Kendall Tau Rank Correlation between various tie-strength me
asures.