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Marco Vriens, Marketing and Chad Vidden, Mathematics & Statistics, co-authored the article "The benefits of the Shapley Value for key drivers analysis" in Applied Marketing Analytics and was accepted for publication by Henry Stewart. Linear (and other types of) regression are often used in what is referred to as ‘driver modelling’ in customer satisfaction studies. The goal of such research is often to determine the relative importance of various sub-components of the product or service in terms of predicting and explaining overall satisfaction. Driver modelling can also be used to determine the drivers of value, likelihood to recommend, etc. A common problem is that the independent variables are correlated, making it difficult to get a good estimate of the importance of the ‘drivers’. This problem is well known under conditions of severe multicollinearity, and alternatives like the Shapley-value approach have been proposed to mitigate this issue. This paper shows that Shapley-value may even have benefits in conditions of mild collinearity. The study compares linear regression, random forests and gradient boosting with the Shapley-value approach to regression and shows that the results are more consistent with bivariate correlations. However, Shapley-value regression does result in a small decrease in k-fold validation results.
Kristina LaPlant, Political Science & Public Administration, authored the article "Cocked, Locked, and Loaded: An Analysis of the Five Policy Regimes of Concealed Carry on College Campuses" in Politics & Policy published on Jan. 9 by Wiley-Blackwell. LaPlant and colleagues explore how gun culture, state policy liberalism, and racial politics influence legislation allowing the carrying of concealed weapons on college campuses in the United States.
Tisha King-Heiden, Biology, co-authored the article "The Importance of Diverse Mentors in the Sciences" in SETAC Globe published on Thursday, Jan. 14 by ET&C. This opinion piece was written with colleagues from SETAC North America in response to the recent Wall Street Journal op-ed condemning first lady elect, Jill Biden, for using her doctoral prefix and the now retracted Nature Communications article that used inappropriate analyses to suggest female mentorship has a negative impact on the careers of others in science. Our piece is intended to highlight the current data that actually supports the opposite findings, to identify data gaps that remain in this field, and to offer a call to action to increase diversity of mentors in the sciences.
Marco Vriens, Marketing and Chad Vidden, Mathematics & Statistics, co-authored the article "The benefits of the Shapley Value for key drivers analysis" in Applied Marketing Analytics and was accepted for publication by Henry Stewart. Linear (and other types of) regression are often used in what is referred to as ‘driver modelling’ in customer satisfaction studies. The goal of such research is often to determine the relative importance of various sub-components of the product or service in terms of predicting and explaining overall satisfaction. Driver modelling can also be used to determine the drivers of value, likelihood to recommend, etc. A common problem is that the independent variables are correlated, making it difficult to get a good estimate of the importance of the ‘drivers’. This problem is well known under conditions of severe multicollinearity, and alternatives like the Shapley-value approach have been proposed to mitigate this issue. This paper shows that Shapley-value may even have benefits in conditions of mild collinearity. The study compares linear regression, random forests and gradient boosting with the Shapley-value approach to regression and shows that the results are more consistent with bivariate correlations. However, Shapley-value regression does result in a small decrease in k-fold validation results.
Kristina LaPlant, Political Science & Public Administration, authored the article "Cocked, Locked, and Loaded: An Analysis of the Five Policy Regimes of Concealed Carry on College Campuses" in Politics & Policy published on Jan. 9 by Wiley-Blackwell. LaPlant and colleagues explore how gun culture, state policy liberalism, and racial politics influence legislation allowing the carrying of concealed weapons on college campuses in the United States.
Tisha King-Heiden, Biology, co-authored the article "The Importance of Diverse Mentors in the Sciences" in SETAC Globe published on Thursday, Jan. 14 by ET&C. This opinion piece was written with colleagues from SETAC North America in response to the recent Wall Street Journal op-ed condemning first lady elect, Jill Biden, for using her doctoral prefix and the now retracted Nature Communications article that used inappropriate analyses to suggest female mentorship has a negative impact on the careers of others in science. Our piece is intended to highlight the current data that actually supports the opposite findings, to identify data gaps that remain in this field, and to offer a call to action to increase diversity of mentors in the sciences.
Retired Financial Aid Director James Finn died Jan. 4. Jim was born and raised in La Crosse. He attended UWL and received a B.S. degree in 1969 and an M.S. degree in 1970. His career began at Viterbo, but he returned to UWL in 1976 as associate director of student financial aid. He then became director of student financial aid in 2000 and retired in 2005. Financial Aid Director Louise Janke kindly shared her thoughts on Jim’s career and dedication to UWL: “Jim was a tremendous teacher, mentor, and great friend. He not only taught many of our staff about the administration of financial aid, but he also modeled the importance of caring about the students we served. I remember Jim never really being interested in praise or attention for his contributions, as he was more focused on the good of the office and our team. He enjoyed a wonderful sense of humor and shared that often. We were fortunate to work with him for so many years.” For more information see the obituary.
Mitchell Hall Custodian Herbert Meyers died Jan. 2. Herbie was a custodian in Mitchell Hall and was responsible for the Field House end of the building. He retired in 1993 after serving UWL for 29 years. For more information see the obituary.
