FKG.js']js: A Plug-in Based on Freebase for a Knowledge Card Service

For better understanding user information needs, Google proposed the Knowledge Graph as supplements to the results returned by its search engine. Many search engines have also developed their own knowledge graph services. However, although there are many freely accessible structured datasets, such as Freebase, developers have to build the knowledge graph from scratch without any support from open source initiatives. Recently, in our preliminary work, we were trying to develop an open source JavaScript plug-in, namely FKG.js (Free Knowledge Graph), for HTML5-based applications to easily extend their potential knowledge graph modules. In the plug-in, we also provided a visualization solution using freely accessible structured datasets from the Internet. In addition, we managed to propose server-side APIs for collecting user behavior patterns in order to optimize the display of the knowledge graph.