“If You Have a Heart Attack, Just Cough”

"If you have a heart attack, just cough".

Did You Really Just Have a Heart Attack? Towards Robust Detection of Personal Health Mentions in Social Media

Millions of users share their experiences on social media sites, such as Twitter, which in turn generate valuable data for public health monitoring, digital epidemiology, and other analyses of population health at global scale. The first, critical, task for these applications is classifying whether a personal health event was mentioned, which we call the (PHM ) problem. This task is challenging...

Hints: You Can't Have Just One

A student using an interactive learning environment (ILE) may take multiple attempts to solve a problem step, at times using hints. But how effective are hints? Because data mining occasionally finds implausible negative effects of hints, a method is needed to remove selection effects related to hint use. We distinguish multiple attempts in which a student repeatedly seeks hints from multiple a...

Even if I showed you where you looked, remembering where you just looked is hard

People know surprisingly little about their own visual behavior, which can be problematic when learning or executing complex visual tasks such as search of medical images. We investigated whether providing observers with online information about their eye position during search would help them recall their own fixations immediately afterwards. Seventeen observers searched for various objects in...

If you have said A, you must also say B: is this always true?

“Dissecting Bioethics,” edited by Tuija Takala and Matti Häyry, welcomes contributions on the conceptual and theoretical dimensions of bioethics. The section is dedicated to the idea that words defined by bioethicists and others should not be allowed to imprison people’s actual concerns, emotions, and thoughts. Papers that expose the many meanings of a concept, describe the different readings o...