From c72edc50592ec54243cdd19874d7f55bc47433c3 Mon Sep 17 00:00:00 2001
From: Jinghao Shi <jinghaos@buffalo.edu>
Date: Tue, 30 Jun 2015 14:22:35 -0700
Subject: [PATCH] add caption to fig. 4

---
 investigation.tex | 3 +++
 1 file changed, 3 insertions(+), 0 deletions(-)

diff --git a/investigation.tex b/investigation.tex
index e6ae576..5442657 100644
--- a/investigation.tex
+++ b/investigation.tex
@@ -29,6 +29,7 @@ reciprocal sharing relationships in the dataset (\S\ref{subsec:reciprocal}).
   \caption{\textbf{\PhoneLab{} \wifi{} Dataset Summary.} Used APs refers to the
   subset of total APs that were used by the devices participating in the study.}
   \label{tab:summary}
+  \vspace*{-3mm}
 \end{table}
 
 \PhoneLab{}\cite{phonelab-sensemine13} is a public smartphone platform
@@ -167,6 +168,8 @@ APs, node 0 and 7, which exhibit reciprocal sharing relationships.
     outdegrees of identified \PhoneLab{} home APs are counted. }
     \label{fig:sparse}
   \end{subfigure}
+  \caption{\textbf{Reciprocal Sharing Opportunities in \PhoneLab{} Dataset.}}
+  \vspace*{-3mm}
 \end{figure}
 
 We must point out that \PhoneLab{} participants reside sparsely among the vast
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