Knowledge graph
Advisor records which provisions cite which, across the statute book, and builds measures on top. The graph tools read it.
Citations
A citation edge joins two titles where the text of one refers to the other. Each edge has a weight (how many citations lie behind it) and the provisions on each side. internal_cross_ref edges join provisions within one title.
- Only law in force. Both ends of every edge are in force, so "what cites this" leaves out citations from law that has ended.
- A citation must name one provision unambiguously to be resolved to it. A reference Advisor cannot resolve is recorded as unresolved, not guessed.
- One hop per call. Ask again from a node to go further.
Tools: get_network_graph, get_subgraph.
Centrality
centrality on a node measures how central a title is across the whole corpus. It combines three things Advisor holds: citations between titles (a PageRank, 60%), how recently and actively the title has changed (30%), and how many portfolios the Order in force allocates it to (10%). get_portfolio_rankings computes it again within each portfolio's own body of law, and excludes Acts cited by almost every title, such as the Acts Interpretation Act 1901.
These are measures of how the law is connected. They are not a judgement about which law matters for a particular question.
Portfolios
A title belongs to the portfolio the Administrative Arrangements Order in force allocates it to. Where the Order does not mention a title, Advisor uses the department the Federal Register names for it, matched exactly. Titles with neither are under "No Department".
The Order lists each portfolio's functions as well. It does not allocate titles to functions, so Advisor's tools list a portfolio's functions and its legislation side by side, never legislation per function.
Instruments made under a title
made_under_count, where present, is how many instruments in force the Federal Register records as made under the title.