Collaborating Authors

Investigating Health-Aware Smart-Nudging with Machine Learning to Help People Pursue Healthier Eating-Habits Artificial Intelligence

Food-choices and eating-habits directly contribute to our long-term health. This makes the food recommender system a potential tool to address the global crisis of obesity and malnutrition. Over the past decade, artificial-intelligence and medical researchers became more invested in researching tools that can guide and help people make healthy and thoughtful decisions around food and diet. In many typical (Recommender System) RS domains, smart nudges have been proven effective in shaping users' consumption patterns. In recent years, knowledgeable nudging and incentifying choices started getting attention in the food domain as well. To develop smart nudging for promoting healthier food choices, we combined Machine Learning and RS technology with food-healthiness guidelines from recognized health organizations, such as the World Health Organization, Food Standards Agency, and the National Health Service United Kingdom. In this paper, we discuss our research on, persuasive visualization for making users aware of the healthiness of the recommended recipes. Here, we propose three novel nudging technology, the WHO-BubbleSlider, the FSA-ColorCoading, and the DRCI-MLCP, that encourage users to choose healthier recipes. We also propose a Topic Modeling based portion-size recommendation algorithm. To evaluate our proposed smart-nudges, we conducted an online user study with 96 participants and 92250 recipes. Results showed that, during the food decision-making process, appropriate healthiness cues make users more likely to click, browse, and choose healthier recipes over less healthy ones.

Fitbit releases OS 3.0 for Ionic and Versa: Enhanced smartwatch features and new apps


The Fitbit Versa, see our full review, is a very popular wearable for the masses while the Fitbit Ionic meets the needs of runners and bikers with its integrated GPS receiver. Starting today, these two smartwatches will see an update to Fitbit OS 3.0 with improved sleep and exercise views, while water intake and weight logging is supported right from the watch. The goal-based exercise modes, seen first in the Fitbit Charge 3, will also appear on the Versa and Ionic. These modes include the ability to set exercise goals for calories burned, distance covered, and time. More real-time stats are also going to be shown to users.

Good news for fitness obsessives: Experts find tracking bands can underestimate exercise by up to 40%

Daily Mail - Science & tech

Fitness trackers are designed to monitor activity and help users stay on track during their fitness journey. However, the accuracy of these devices when measuring parameters such as energy balance and heart rate has not been officially established. During an investigation into four popular wrist-worn devices, researchers found that energy expenditure can be underestimated with variance of more than 40 percent. The accuracy of fitness bands, like the Fitbit Charge HR, when measuring parameters such as energy balance and heart rate has not been officially established. University of Queensland investigated Apple Watch, Fitbit Charge HR, Samsung Gear S and Mio Alpha to measure heart rate and energy expenditure at rest and while the wearer is exercising.

Fitbit price cut: save on the Fitbit Alta HR, Charge 3, & Blaze smartwatch at Amazon


If you're in the market for a cheap activity tracker, then you've come to the right place. Amazon has some fantastic deals on popular models that include the Fitbit Charge 3 and Blaze smartwatch. Amazon also has the best-selling Fitbit Alta HR on sale for $79.96. That's a $50 discount and the best price we've found for the ultra-slim activity tracker. The Fitbit Alta HR tracks steps, calories burned, and popular workouts like running and yoga.

Fitbit Inspire 2 is the perfect fitness tracker if you prefer low-tech


I've tried more than my fair share of tools to keep active during the pandemic. A short list of things and activities I've given a whirl: a Whoop fitness tracker, a DIY Peloton, a real Peloton, a Gatorade sweat patch, Soul Cycle's at-home bike, countless walks, and a half-marathon ran entirely in a small backyard. Some fitness products, like the Peloton, have stuck while others, like the Whoop, have not. The TL;DR of my Whoop thoughts: It was very cool but too complex for me and most average users. I wanted something pared down and basic, which would provide me benchmarks for daily activity without being overwhelming. Enter: the Fitbit Inspire 2. Through a company wellness program I got one for no cost to me and it ended up being perfect for my needs.