Mining diverse opinions

Mudhakar Srivatsa, Sihyung Lee, Tarek Abdelzaher

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Network operations that support tactical missions are often characterized by evolving information that needs to be delivered over bandwidth constrained communication networks and presented to a social/cognitive network with limited human attention span and high stress. Most past research efforts on data dissemination examined syntactic redundancy between data items (e.g., common bit strings, entropy coding and compression, etc.), but only limited work has examined the problem of reducing semantic redundancy with the goal of providing higher quality information to end users. In this paper we propose to measure semantic redundancy in large volume text streams using online topic models and opinion analysis (e.g., topic = Location X and opinion = possible-hazard +, safe-zone-). By suppressing semantically redundant content one can better utilize bottleneck resources such as bandwidth on a resource constrained network or attention time of a human user. However, unlike syntactic redundancy (e.g., lossless compression, lossy compression with small reconstruction errors), a semantic redundancy based approach is faced with the challenge of having to deal with larger inaccuracies (e.g., false positive and false negative probabilities in an opinion classifier). This paper seeks to quantify the effectiveness of a semantic redundancy based approach (over its syntactic counterparts) as a function of such inaccuracies and present a detailed experimental evaluation using realistic information flows collected from an enterprise network with about 1500 users1.

Original languageEnglish (US)
Title of host publicationMILCOM 2012 - 2012 IEEE Military Communications Conference
StatePublished - 2012
Event2012 IEEE Military Communications Conference, MILCOM 2012 - Orlando, FL, United States
Duration: Nov 1 2012Nov 1 2012

Publication series

NameProceedings - IEEE Military Communications Conference MILCOM


Other2012 IEEE Military Communications Conference, MILCOM 2012
Country/TerritoryUnited States
CityOrlando, FL

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Mining diverse opinions'. Together they form a unique fingerprint.

Cite this