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ReferencesNavigation arrowAuthorsNavigation arrowKartik Hosanagar
May 23

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-- G. Salomon (in "Distributed Cognitions: Psychological and Educational Considerations")

 
 

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Kartik Hosanagar

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Publications by Kartik Hosanagar (bibliography)

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2007
 
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Abhishek, Vibhanshu and Hosanagar, Kartik (2007): Keyword generation for search engine advertising using semantic similarity between terms. In: Gini, Maria L., Kauffman, Robert J., Sarppo, Donna, Dellarocas, Chrysanthos and Dignum, Frank (eds.) Proceedings of the 9th International Conference on Electronic Commerce - ICEC 2007 August 19-22, 2007, Minneapolis, MN, USA. pp. 89-94.

2005
 
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Hosanagar, Kartik (2005): A utility theoretic approach to determining optimal wait times in distributed information retrieval. In: Proceedings of the 28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval 2005. pp. 91-97.

“Distributed IR systems query a large number of IR servers, merge the retrieved results and display them to users. Since different servers handle collections of different sizes, have different processing and bandwidth capacities, there can be considerable heterogeneity in their response times. The broker in the distributed IR system thus has to make decisions regarding terminating searches based on perceived value of waiting -- retrieving more documents -- and the costs imposed on users by waiting for more responses. In this paper, we apply utility theory to formulate the broker's decision problem. The problem is a stochastic nonlinear program. We use Monte Carlo simulations to demonstrate how the optimal wait time may be determined in the context of a comparison shopping engine that queries multiple store websites for price and product information. We use data gathered from 30 stores for a set of 60 books. Our research demonstrates how a broker can leverage information about past retrievals regarding distributions of server response time and relevance scores to optimize its performance. Our main contribution is the formulation of the decision model for optimal wait time and proposal of a solution method. Our results suggest that the optimal wait time is highly sensitive to the manner in which users value from a set of retrieved results differs from the sum of user value from each result evaluated independently. We also find that the optimal wait time increases with the size of the distributed collections, but only if user utility from a set of results is nearly equal to the sum of utilities from each result.”

© All rights reserved Hosanagar and/or ACM Press

2004
 
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Hosanagar, Kartik, Krishnan, Ramayya, Smith, Michael D. and Chuang, John (2004): Optimal Pricing of Content Delivery Network (CDN) Services. In: HICSS 2004 2004. .

 
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Changes to this page (author)

19 Feb 2010: Modified
12 Jun 2009: Added
30 May 2009: Added
24 Jun 2007: Added

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May 23

“ Knowledge is commonly socially constructed, through collaborative efforts towards shared objectives or by dialogues and challenges brought about by different persons' perspectives. ”

-- G. Salomon (in "Distributed Cognitions: Psychological and Educational Considerations")

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

Help us help you!

 
 
 
 
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