Active Surveying: A Probabilistic Approach for Identifying Key Opinion Leaders

Opinion leaders play an important role in influencing people's beliefs, actions and behaviors. Although a number of methods have been proposed for identifying influentials using secondary sources of information, the use of primary sources, such as surveys, is still favored in many domains. In this work we present a new surveying method which combines secondary data with partial knowledge from primary sources to guide the information gathering process. We apply our proposed active surveying method to the problem of identifying key opinion leaders in the medical field, and show how we are able to accurately identify the opinion leaders while minimizing the amount of primary data required, which results in significant cost reduction in data acquisition without sacrificing its integrity.

[1]  Stanley Wasserman,et al.  Social Network Analysis: Methods and Applications , 1994, Structural analysis in the social sciences.

[2]  Gökhan Tür,et al.  Combining active and semi-supervised learning for spoken language understanding , 2005, Speech Commun..

[3]  T. Valente,et al.  Accelerating the Diffusion of Innovations Using Opinion Leaders , 1999 .

[4]  D. Watts,et al.  Influentials, Networks, and Public Opinion Formation , 2007 .

[5]  Raymond J. Mooney,et al.  Active Learning for Natural Language Parsing and Information Extraction , 1999, ICML.

[6]  K W HARCOURT,et al.  “Under the Influence” , 1936, Medicine illustrated.

[7]  S B Soumerai,et al.  Effect of local medical opinion leaders on quality of care for acute myocardial infarction: a randomized controlled trial. , 1998, JAMA.

[8]  William A. Gamson,et al.  Social influence and power in two-person groups , 1961 .

[9]  D. Krackhardt.  Structural Leverage in Marketing , 1996 .

[10]  Foster J. Provost,et al.  Active Sampling for Class Probability Estimation and Ranking , 2004, Machine Learning.

[11]  William A. Gale,et al.  A sequential algorithm for training text classifiers , 1994, SIGIR '94.

[12]  E. Rogers,et al.  LIVING RESEARCH METHODS OF MEASURING OPINION LEADERSHIP , 1962 .

[13]  J. Berry.  The Influentials: One American in Ten Tells the Other Nine How to Vote, Where to Eat, and What to Buy , 2003 .

[14]  Burr Settles,et al.  Active Learning Literature Survey , 2009 .

[15]  Elena Parmelli,et al.  Local opinion leaders: effects on professional practice and health care outcomes. , 2011, The Cochrane database of systematic reviews.

[16]  James H. Myers,et al.  Dimensions of Opinion Leadership , 1972 .

[17]  Edward Y. Chang,et al.  Support vector machine active learning for image retrieval , 2001, MULTIMEDIA '01.

[18]  Jane M. Young,et al.  Audit and feedback: effects on professional practice and healthcare outcomes. , 2012, The Cochrane database of systematic reviews.