Web usage mining: automatic discovery of patterns in clickstreams and associated data collected or generated as a result of user interactions with one or more Web sites. This paper describes web usage mining for our college log files to analyze the behavioral patterns and profiles of users interacting with a Web site. The discovered patterns are represented as clusters that are frequently acces...

In human conversation, verbal and nonverbal behaviors are coordinated by the interlocutors on the fly. To participate in this, artificial conversational agents must be able to create, adopt, and adjust behaviors flexibly and autonomously. We present a novel approach to learning behavioral patterns online, Ordered Means Models (OMMs), that meets the demands of dynamic behavior coordination in in...

A large volume of research in ubiquitous systems has been devoted to using data, that has been sensed from users’ smartphones, to infer their current high level context and activities. However, mining users’ diverse longitudinal behavioral patterns, which can enable exciting new context-aware applications, has not received much attention. In this paper, we focus on learning and identifying such...

Why have some animals evolved large brains despite substantial energetic and developmental costs? A classic answer is that a large brain facilitates the construction of behavioural responses to unusual, novel or complex socioecological challenges. This buffer effect should increase survival rates and favour a longer reproductive life, thereby compensating for the costs of delayed reproduction. ...

A business problem for the telecommunication companies is to provide an appropriate promotional coupon to suitable customers. This problem leads to the challenge of identifying behavioral patterns of customers and deliver the right customer engagement at the right time. So there is a need for a system that can enable the telecommunication companies to go for the best marketing strategy by lever...

Does Forced Solidarity Hamper Investment in Small and Micro Enterprises? Sharing is a norm in many societies. We present a theoretical model on the trade-off between sharing and investment which we test on data from tailors in Burkina Faso. The empirical results support the idea that there are two behavioural patterns: entrepreneurs following an ‘insurance regime’ comply with sharing norms, are...

This essay addresses how nonprofit organizations behave differently from for-profits and governments and particularly if nonprofit organizations behave differently from each other. Using technical and financial data for the whole universe of private Uruguayan non-profit health organizations for a period of 9 years (1982-1990)3, it is examined how different types of non-profit organizations show...

Many state-of-the-art approaches to people tracking rely on detecting them in each frame independently, grouping detections into short but reliable trajectory segments, and then further grouping them into full trajectories. This grouping typically relies on imposing local smoothness constraints but almost never on enforcing more global constraints on the trajectories. In this paper, we propose ...

Rodents are optimal real-world foragers that regulate internal states, such as security, arousal, energy, etc., maintaining a dynamic stability with their surroundings. Free exploration is an interesting scenario as rodents display behavioral patterns that are very different from being random, even in the absence of reward. Our aim is to understand foraging behavior by implementing an artificia...

A constant element of our modern environment is change. In decision-making research however, very little is known about how people make choices in dynamic environments. We report the results of an experiment where participants were asked to choose between two options: a dynamic and risky option that resulted in either a high or a low outcome, and a stationary and safe option that resulted in a ...