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Background Imagery - County Map of the USA with a vectored web of lines and nodes wrapping across the country, signifying connections

To assist users to better access KnowWhere Graph, especially in cases of our identified pilots, we developed a series of tools. Specifically, we provide Knowledge Explorer to help one readily query the graph by simply selecting facets or searching with keywords; we also offer a 3D geovisualization tool (GeoGraphVis) for humanitarian relief specialists to search, visualize, analyze, and discover knowledge related to disasters and their responses from KnowWhere Graph; finally, we implement a Crop Impact Assessment tool that enables one to understand the chains of food supply from farmers' lands to customers' tables based on our densely connected graph.

All of our tools are developed under the license of Apache 2.

Knowledge Explorer

The Knowledge Explorer interface is a portal for exploring the KnowWhereGraph database. It provides a set of filters related to attributes-or facets-of the various datasets in the graph that allow a user to quickly refine their search. Clickable links in the search results encourage the user to explore data tangentially related to their initial query that may lead to new insights. Whether supporting a humanitarian response following a hurricane or projecting supply-chain consequences of a wildfire, the Knowledge Explorer's interface helps target and refine investigations by exposing properties of the graph's vast network of geographically referenced data...

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Inspired by Esri's GeoEnrichment services and the Linked Data cloud, KnowWhereGraph starts with the concept of GeoEnrichment, augments it with Semantic Web and Knowledge Graph (KG) technology, and proposes the idea of Knowledge Graph based GeoEnrichment which aims at semantically enriching a given geospatial dataset with information from a cross-domain, up-to-date (Geographic) Knowledge Graph, namely KnowWhereGraph, from within a GIS \cite{mai2019deeply}.

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The GeoGraphVis tool, developed to support humanitarian response efforts following a disaster, visualizes data from KnowWhereGraph on a map. It allows a user to explore a hurricane's trajectory and impacts (e.g., death, property damage, etc.), health indicators related to the affected populations (e.g., prevalence of diabetes and obesity), as well as information on experts whose areas of expertise may critically support relief efforts. By presenting an integrated view, the platform quickly raises situational awareness regarding the environmental, infrastructure and social dimensions of a humanitarian disaster.

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Cropland Impact Assessment Tool

The Crop Impact Assessment Tool enables one to explore the geographic footprint of past wildfires and their smoke plumes in relation to agricultural distribution, processing and retail facilities. Smoke and ash plumes can contaminate crops across areas far larger than those directly affected by wildfires, suppressing production of safe and consumable leafy greens. This tool enables stakeholders to estimate which compo

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