AMR Flashcards
How does amr represent each sentence?
as a rooted, directed, acyclic graph
Are AMRs graphs or trees?
graphs
Concept identification
assigning graph fragments to words
relation identification
adding graph edges which connect these fragments
What are as-graphs?
directed graphs with node and edge labels in which certain nodes have been designated as sources.
How many roots does an as-graph have?
always exactly one
What does the APP operation do?
It adds an argument to a predicate
What does the MOD operation do?
It adds a modifier to a graph
What would MOD_a(GH, GM) do?
It combines head GH with modifier GM. It plugs the root of GH into the a-source node of GM.
What do AM types govern?
the combination of graphs
What do CCG categories control?
the combination of strings
What is the head index of a subtree t?
the index of the token which contributed the root of the as-graph to which t evaluates.
What does a well-typed AM-term always evaluate to?
An as-graph.
