Recently, many mobile apps have made viable new business models such as in-app purchase. In this paper, we quantify how mobile app usage relates to the unique characteristics of behavioral orientations and content types, focusing on the interrelationship among content usage in the context of in-app purchase. Using a largescale dataset of individual content usage in a particular music mobile app...

The developers of Massively Multiplayer Online Games (MMOGs) rely on attractive content such as logical challenges (puzzles) to entertain and generate revenue from millions of concurrent players. While a large part of the content is currently generated by hand, the exponentially increasing number of players and their new demand for player-customized content have made manual content generation u...

There are two fundamental problems studied by the theory of hamiltonian integrable systems: integration of equations of motion, and construction of action-angle variables. The third problem, however, should be added to the list: separation of variables. Though much simpler than two others, it has important relations to the quantum integrability. Separation of variables is constructed for the SL...

A relation is proved between the Poincaré series of the coordinate algebra of a two-dimensional quasihomogeneous isolated hypersurface singularity and the characteristic polynomial of its monodromy operator. For a Kleinian singularity not of type A2n, this amounts to the statement that the Poincaré series is the quotient of the characteristic polynomial of the Coxeter element by the characteris...

This paper proposed a virtual conference audio reconstruction model based on spatial audio object. The aim of the model is to enhance the realistic experience of virtual conference. Firstly, the conference audio synthesis method is given according the principle of the virtual conference. Then the spatial audio parameters interaural level difference (ILD) are used to reconstruct the spatial soun...

Do you have a favourite conference? Two. One is the Winter Animal Behavior Conference. This is an informal meeting of about 30 attendees convened at various sites in the Rocky Mountains of North America. It lasts a week, everyone gives a talk, and there is ample time for serious discussion both in the conference and on the ski slopes. I usually find the discussions on the slopes more rewarding;...

It is a pleasure for me to attend the SEACEN-CEMLA Conference, as it offers me a new opportunity to describe and explain to my esteemed colleagues from other parts of the world the experience of the ECB’s monetary policy over the past four years of crisis. I would also like to take the opportunity to discuss with you what I consider to be some of the main challenges that modern central banking ...

influence this has on final height is not included in this chapter but found elsewhere under the heading of indices of maturity. In general it is well written, although it could be more concise. A helpful reference list is provided. After reading this text, I can only agree with the author's quotation of Saint Augustine "man looks about the universe in awe at its wonders and forgets that he him...

Research Fellow, School of Management, Boston University (e-mail: [email protected]). Marc Vanhuele is Associate Professor of Marketing, HEC Paris (e-mail: [email protected]). Koen Pauwels is Associate Professor of Marketing, Özyeğin University, Istanbul (e-mail: koen.pauwels@ozyegin. edu.tr). The authors thank Kantar Worldpanel France for providing the data used in this article and the Marketing Sci...