Keyword-based information retrieval for the WoT
George Xylomenos, Evangelos Zafeiratos, Marios Prokopakis · 2019
The Internet of Things (IoT) is expected to contain huge numbers of "things" producing vast amounts of information. To turn these raw data to useful services for the Web of Things (WoT), we have previously proposed KIOT, a keyword-based scheme for gathering and processing IoT information using Information-Centric Networking (ICN) techniques. In KIOT data items, such as sensor readings, can be named with arbitrary sets of keywords, while users can retrieve all data items matching a desired set of keywords and (optionally) process them with arbitrary functions. In this paper we focus on a prototype implementation of the data retrieval part of KIOT. To maximize flexibility in diverse settings, our implementation automatically configures the network and its routing tables, allowing arbitrary sets of keywords to be used for both data items and queries. Our implementation can be used on any IoT device supporting Java, and is also available for large scale testing over emulated networks using Mininet.