Daniel M. Gruen

Between ontology and folksonomy: a study of collaborative and implicit ontology evolution

We present our first user study of CRAFT, a semantic prototype for collaborative investigation and analysis, which allows users to extend the systems ontology to capture new concepts as they conduct their work. We devised a paradigm in which multiple series of ontologies evolve in different trajectories from the same initial point. We analyze the ontology evolution quantitatively with several metrics, and user behavior qualitatively through interviews and observation. Based on our study, we propose a set of design suggestions for semantic applications with collaborative and implicit ontology development.

MoCoMapps: mobile collaborative map-based applications

This video demonstrates an experiment in crowdsourcing both map-based data and also the applications that provide the maps, and also presents scenarios of use.

Crafting an environment for collaborative reasoning

We motivate the need for new environments for collaborative reasoning and describe the foundations of our approach, namely collaboration, semantics, and adaptability. We describe the CRAFT collaborative reasoning interface and infrastructure that we are developing to explore this approach.

Cognitive company discovery

Cognitive Company Discovery is an application that helps business professionals identify companies of interest to them. The application employs a variety of artificial intelligence and data science techniques to build a corpus of company data, rapidly search the corpus based on implicit and explicit user queries, present the results using visualization techniques that yield insight into areas of interest to the user and to scan vast amounts of news and blog posts to aid users in discovering new companies. The application is currently deployed in a major corporation. A video that demonstrates our system can be found at the following URL: https://player.vimeo.com/video/278031050