Indian Institute of Management Ahmedabad

About: Indian Institute of Management Ahmedabad is a education organization based out in Ahmedabad, India. It is known for research contribution in the topics: Emerging markets & Population. The organization has 1828 authors who have published 4011 publications receiving 59269 citations. The organization is also known as: IIMA & IIM Ahmedabad.

A New Similarity Metric for Sequential Data

Abstract: In many data mining applications, both classification and clustering algorithms require a distance/similarity measure. The central problem in similarity based clustering/classification comprising sequential data is deciding an appropriate similarity metric. The existing metrics like Euclidean, Jaccard, Cosine, and so forth do not exploit the sequential nature of data explicitly. In this paper, the authors propose a similarity preserving function called Sequence and Set Similarity Measure S3M that captures both the order of occurrence of items in sequences and the constituent items of sequences. The authors demonstrate the usefulness of the proposed measure for classification and clustering tasks. Experiments were conducted on benchmark datasets, that is, DARPA'98 and msnbc, for classification task in intrusion detection and clustering task in web mining domains. Results show the usefulness of the proposed measure.

A Bibliometrics Profile of Gujarat University, Ahmedabad during 2004-2013

Abstract: This study attempts to undertake bibliometric analysis of the research publications of Gujarat University during the ten-year period between 2004 and 2013. The data for this study was extracted from SCOPUS and included a total of 760 publications that were attributed to authors affiliated to Gujarat University. The publication data was analysed with respect to the type of publications where 83% are journal articles. The paper also analysed the publication trend of Gujarat University and found that from 2008 onwards there was a steady increase in the number of publications. The other aspects that were identified in the paper were the most prolific authors, collaborative authorship patterns and trends, most preferred publications, and so on. The collaboration was found to be the highest in the year 2012 at 0.70 based on the modified collaboration coefficient. The most preferred journal for publication by Gujarat University faculty was ActaPoloniaePharmaceutica-Drug Research and the most cited author of Gujarat University was P.S. Srivastav, while V.K. Jain had the best average citations per paper.

Mediating Role of Consumer Involvement between Celebrity Endorsement and Consumer Evaluation: Comparative Study of High and Low Involvement Product

Abstract: Celebrity endorsement has been an important area of study from the perspectives of marketers as well as consumers. This research aims at developing and testing a model of celebrity endorsement with celebrity-product congruence and attractiveness as predictor variables, with consumer involvement affecting a consumer assessment of the brand and purchase intention. The research has been guided by current attention being given to the significance of celebrities for endorsing products. However, the same has not been duly explored in the context of celebrity endorsement, with consumer involvement as a mediating variable, and further its impact on consumers’ evaluation. The present research discusses the relationship effect of celebrity endorsement on consumers’ evaluation of the communication done through the celebrity endorsing the brand. The study highlights mediating role of consumer involvement for both high and low involvement products in formation of attitude towards advertisement and buying intention. Using mall intercept method, the data was collected from 246 respondents. Structural equation modelling was used for analysing the data using AMOS 22.0. The results indicate that consumer responses are maximised when endorser attractiveness and consumer involvement interact with each other. Also, it is observed that consumer involvement has maximum impact on attitude toward advertisement. The paper closes with theoretical and managerial implication.

Operational Planning of Passenger Trains in Indian Railways

Abstract: We designed, developed, and implemented an optimization-based DSS to facilitate operational planning of passenger trains on Indian Railways. Implementing our DSS in an organization that has 1.6 million regular employees was very frustrating, and success did not come easily. Two zonal railways have already implemented the DSS, and both report many direct and indirect benefits. Another railway has used our model to analyze its operations, but implementation is pending. The passenger cars and locomotives saved by our model can be used to replenish spare stock or to form new trains to provide new services to meet the ever increasing demand of passenger traffic.