Evaluating Communication Campaigns

Summarizes presentations from a September 2007 conference on evaluating communication campaigns. Discusses the mechanism of effecting change through communication; the principles of advocacy evaluation; the design, methods, and tools; and lessons learned

The Influence of the Herfindahl-Hirschman Index and Product Complexity on Search Behaviour: A Cross-sector Study of the U.S., Germany and U.K.

Consumer search is analysed in a cross-sector study of six markets in the US, Germany and UK using online panel data. Two constructs are used to measure the search process: the consideration set and use of price comparison engines. The consideration sets range from 2.3 to 3.1 in the US, from 2.3 to 2.6 in Germany and from 2.6 to 3.2 in the UK, regardless of the use of price comparison engines. These results are significantly smaller than expected compared to pre-Internet studies and theory predictions. However, they are consistent with the few published results that used online panel data. It is shown that the consideration set is a function of the Herfindahl-Hirschman Index. The use of price comparison engines is inversely related to product complexity. The theoretical and managerial implications of the research results are explained and the potential of using online panel data for future research into online consumer behaviour and strategy is outlined

ProcK: Machine Learning for Knowledge-Intensive Processes

We present a novel methodology to build powerful predictive process models. Our method, denoted ProcK (Process & Knowledge), relies not only on sequential input data in the form of event logs, but can learn to use a knowledge graph to incorporate information about the attribute values of the events and their mutual relationships. The idea is realized by mapping event attributes to nodes of a knowledge graph and training a sequence model alongside a graph neural network in an end-to-end fashion. This hybrid approach substantially enhances the flexibility and applicability of predictive process monitoring, as both the static and dynamic information residing in the databases of organizations can be directly taken as input data. We demonstrate the potential of ProcK by applying it to a number of predictive process monitoring tasks, including tasks with knowledge graphs available as well as an existing process monitoring benchmark where no such graph is given. The experiments provide evidence that our methodology achieves state-of-the-art performance and improves predictive power when a knowledge graph is available

Online Search Behavior in the Air Travel Market: Reconsidering the Consideration Set and Customer Journey Concepts

The online air travel market is a complex and dynamic multi-channel environment in which consumers use a range of decision criteria to search for their best flight options. Online Travel Agents and Price Comparison Engines have transformed the search process and enhanced market transparency. These Air Travel Intermediaries (ATIs) are sophisticated decision support tools that enable online search and booking across thousands of flight options for all users, regardless of user expertise. An experiment was conducted to explore the detailed search behavior and processes of 29 individuals. A revised model of the customer journey as search funnel and a different operationalization of the consideration set is described that are more realistic representations of actual search behavio

Designing Fair Ranking Schemes

Items from a database are often ranked based on a combination of multiple criteria. A user may have the flexibility to accept combinations that weigh these criteria differently, within limits. On the other hand, this choice of weights can greatly affect the fairness of the produced ranking. In this paper, we develop a system that helps users choose criterion weights that lead to greater fairness. We consider ranking functions that compute the score of each item as a weighted sum of (numeric) attribute values, and then sort items on their score. Each ranking function can be expressed as a vector of weights, or as a point in a multi-dimensional space. For a broad range of fairness criteria, we show how to efficiently identify regions in this space that satisfy these criteria. Using this identification method, our system is able to tell users whether their proposed ranking function satisfies the desired fairness criteria and, if it does not, to suggest the smallest modification that does. We develop user-controllable approximation that and indexing techniques that are applied during preprocessing, and support sub-second response times during the online phase. Our extensive experiments on real datasets demonstrate that our methods are able to find solutions that satisfy fairness criteria effectively and efficiently

Sirtuin1 protects endothelial Caveolin-1 expression and preserves endothelial function via suppressing miR-204 and endoplasmic reticulum stress.

Sirtuin1 (Sirt1) is a class III histone deacetylase that regulates a variety of physiological processes, including endothelial function. Caveolin1 (Cav1) is also an important determinant of endothelial function. We asked if Sirt1 governs endothelial Cav1 and endothelial function by regulating miR-204 expression and endoplasmic reticulum (ER) stress. Knockdown of Sirt1 in endothelial cells, and in vivo deletion of endothelial Sirt1, induced endothelial ER stress and miR-204 expression, reduced Cav1, and impaired endothelium-dependent vasorelaxation. All of these effects were reversed by a miR-204 inhibitor (miR-204 I) or with overexpression of Cav1. A miR-204 mimic (miR-204 M) decreased Cav1 in endothelial cells. In addition, high-fat diet (HFD) feeding induced vascular miR-204 and reduced endothelial Cav1. MiR-204-I protected against HFD-induced downregulation of endothelial Cav1. Moreover, pharmacologic induction of ER stress with tunicamycin downregulated endothelial Cav1 and impaired endothelium-dependent vasorelaxation that was rescued by overexpressing Cav1. In conclusion, Sirt1 preserves Cav1-dependent endothelial function by mitigating miR-204-mediated vascular ER stress

Racial/Ethnic Disparities in Access to Care among Children: How Does Medicaid Do in Closing the Gaps?

While Medicaid and the Children\u27s Health Insurance Program (CHIP) have become increasingly important sources of health coverage for low-income children in all racial and ethnic groups, the program plays an especially large role for children of color, who are more likely than white children to be low-income. In 2007, Medicaid and CHIP covered nearly one in five white children, but roughly two in five African American and Hispanic children. As policymakers engaged in health reform consider the merits of public and private approaches to expanding coverage, this report provides an assessment of Medicaid\u27s relative impact on racial and ethnic disparities in access. The analysis compared health care access for white, African American and Hispanic children who were privately insured, uninsured, or enrolled in Medicaid or CHIP. Key findings include: Racial and ethnic disparities in access to care were no more likely among children enrolled in Medicaid than among privately insured children. Insurance coverage – both private and Medicaid – often improved access for children in each racial and ethnic group, but generally did not significantly narrow racial and ethnic disparities in their access to health care. This report analyzes data for more than 15,000 children from the 2003 and 2004 Medical Expenditure Panel Survey, a nationally representative household survey conducted by the Agency for Healthcare Research and Quality

Why do some cities adopt more diversity policies than others?:A study in France and Germany

An increasing sociocultural heterogeneity of populations and vocal demands for the recognition of diversity have become common features of, in particular, cities in Western Europe. Do cities reshape policies in response to such developments? And to what extent do they implement policies that accommodate difference? We use data from an original survey of urban policy actors in the twenty largest cities of France and Germany to identify city-level diversity policy instruments. In both countries, such instruments are widespread, contradicting assumptions of dominant assimilationist paradigms. And yet, the degree of adoption across cities varies. Drawing on institutionalist theory, we investigate what might explain differing adoption rates. The main finding is that key determinants at the urban level differ between the two countries. In France, the political constellation is crucial; higher numbers of diversity policies are associated with centre-left dominance. In contrast, in German cities, political consensus around diversity policies seems to prevail and higher adoption rates are associated with higher population diversity. Our findings provide a first wide-ranging account of the adoption of diversity policy instruments in European cities. They demonstrate that such policies exist at a relevant scale. They further help explain why the adoption of diversity policy instruments is uneven