Upload Documents

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PDF, Word, Excel, PowerPoint

Documents

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Insert Knowledge

Add knowledge directly to the knowledge base. Select the type of knowledge and provide your statement. It will be embedded and made searchable immediately.

Recent Knowledge Entries

Knowledge entries will appear here after insertion.
Chat session new
Welcome to SPHERE. Ask me anything about the documents in the knowledge base. You can also tell me new facts, ideas, or other knowledge and I'll add it.
Pick a class, concept, property or entity on the left to see everything known about it.

Terms

Search the ontology to list matching terms.
Select a term to see its details.

Approval queue

Status

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Standard sources

Code Version Kind Status Triples Indexed Loaded

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Upload graph

Import a Turtle, TriG or N-Quads file. Imports are validated and, unless auto-approved, land in the approval queue.

Check a statement

Runs the reasoner on a statement without storing anything: the verdict, how it was formalised, and what the knowledge base would additionally entail if the statement were asserted.

Entailments of an IRI

Everything asserted about a term or entity in document and statement graphs, next to what the reasoner inferred about it, each inferred fact with its derivation.

Pick a term or entity, or paste an IRI.

Explain a triple

Rule base

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New statement

Validate checks a claim against the ontology and the knowledge graph without storing it. Assert validates and, when consistent, stores it as a statement.

Statements

Settings

These settings apply to your current login session only. They reset when you log out or the session expires.

Ontology features
Shows the Ontology, Inference and Statements tabs, lets the chat check claims (Validate), and adds proven facts and asserted statements to your answers. Other users are not affected.
Pick a query or chat on the left, or search by the query id shown next to an answer in the chat.

API Trace

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