Greedoid-Based Noncompensatory Inference

Yee, Michael; Dahan, Ely; Hauser, John R.; Orlin, James
July 2007
Marketing Science;Jul/Aug2007, Vol. 26 Issue 4, p532
Academic Journal
Greedoid languages provide a basis to infer best-fitting noncompensatory decision rules from full-rank conjoint data or partial-rank data such as consider-then-rank, consider-only, or choice data. Potential decision rules include elimination by aspects, acceptance by aspects, lexicographic by features, and a mixed-rule lexicographic by aspects (LBA) that nests the other rules. We provide a dynamic program that makes estimation practical for a moderately large numbers of aspects. We test greedoid methods with applications to SmartPhones (339 respondents, both full-rank and considerthen-rank data) and computers (201 respondents from Lenk et al. 1996). We compare LBA to two compensatory benchmarks: hierarchical Bayes ranked legit (HBRL) and LINMAP. For each benchmark, we consider an unconstrained model and a model constrained so that aspects are truly compensatory. For both data sets, LBA predicts (new task) holdouts at least as well as compensatory methods for the majority of the respondents. LBA's relative predictive ability increases (ranks and choices) if the task is full rank rather than consider then rank. LBA's relative predictive ability does not change if (1) we allow respondents to presort profiles, or (2) we increase the number of profiles in a consider-then-rank task from 16 to 32. We examine trade-offs between effort and accuracy for the type of task and the number of profiles.


Related Articles

  • Reversion resource.  // Money Marketing;12/15/2005, p26 

    The article discusses the business forecasts that there will be a high growth in the sales of home-reversion schemes. The Home Reversion Bill that will legislate the regulation of home-reversion schemes has been welcomed by the equity-release industry. According to Jon King, chairman of Ship,...

  • QUESTIONS TO ASK WHILE REVIEWING THE BENCHMARKING DATA. Lapide, Larry // Journal of Business Forecasting;Winter2007/2008, Vol. 26 Issue 4, p4 

    The article presents the author's views regarding the benchmarking data in the U.S. There is an analogy to be made relative to using the benchmarking data reports in the special issue of the "Journal of Business Forecasting" (JBF). The benchmarking information reported in the JBF comes from...

  • BENCHMARKING FORECASTING PROCESSES. Jain, Chaman L. // Journal of Business Forecasting;Winter2007/2008, Vol. 26 Issue 4, p9 

    The article provides information concerning the benchmarking of business forecasting processes in the U.S. The author says that forecasting practices have been changing in a significant way over several years. The perception and process of business forecasting has changed as well as its...

  • MEASURING RISK. Tabatabai, Bijan // Financial Management;May2009, p38 

    The article focuses on the new and methodical approach to range forecasting that has developed in a certain company in Great Britain. It mentions that all business forecasts are not right but the knowledge people obtained will help in building more relevant and flexible business plans and be...

  • Portable Navigation Could Hit 2 Million Units. Gilroy, Amy // TWICE: This Week in Consumer Electronics;2/27/2006, Vol. 21 Issue 5, p44 

    The article assesses the possibility that the sales for U.S. portable navigation could double in 2006. Industry members expect the sales to reach 1.5 million to 2 million units. But will the flooding of navigator suppliers affect the outlook of the industry? Among the suppliers that have entered...

  • DATAMONITOR: TeliaSonera AB.  // TeliaSonera AB SWOT Analysis;May2009, p1 

    The article presents a company profile for TeliaSonera AB, a major telecommunications group in the Nordic and Baltic regions headquartered in Stockholm, Sweden. TeliaSonera primarily functions as a provider of services for mobile communications and fixed communications. Additional key facts...

  • Data Points:.  // TWICE: This Week in Consumer Electronics;12/17/2012, Vol. 27 Issue 25, p14 

    This section offers news briefs relating to handheld communication devices as of December 17, 2012 including FutureSource Consulting's forecast on the growth of the global tablet computer market by 2016 and findings by the Simmons National Consumer Study which show that many adults ages 18 to 24...

  • Optical trends to watch in '09. Howard, Michael // Telephony;Mar2009, Vol. 250 Issue 3, p49 

    The article focuses on the business forecast related to the trend in the optical networking business in 2009. Service providers are expected to slow their spending in the first six months of 2009, but would catch up in the latter part. Meanwhile, service providers consolidation will be suspended...

  • BENCHMARKING FORECASTING SOFTWARE AND SYSTEMS. Jain, Chaman L. // Journal of Business Forecasting;Winter2007/2008, Vol. 26 Issue 4, p30 

    The article provides information concerning the benchmarking of business forecasting software and systems in the U.S. More and more companies are looking into software and systems to improve as well as automate their forecasting process. Forecasting software is used to generate forecasts using...


Read the Article


Sign out of this library

Other Topics