Information-Balance-Aware Approximated Summarization of Data Provenance

Algorithm 1

Information-Balance-Aware Approximated Provenance Summarization Algorithm (IB-PROX).

Require: (original provenance), (annotations in ), (combiner

function) and (VAL-FUNC function), the weight for distance,

size, definition and weight of IBI score, selection size , size bound

TSIZE, distance bound TDIST

Returns: Summarized expression

(1) Initialize as

(2) While   > TSIZE or ) < TDIST Do

(3) candidateSet =

(4) For every   Do

(5)

(6) Add to candidate set

(7) End For

(8) selectedSet = from candidateSet with top percent size-

distance performance

(9) For every   in  selectedSet Do

(10) If   is optimal Then

(11)

(12)

(13) End if

(14) End For

(15) End While

(17) If   > TDIST Then

(17) return

(18) End If

(19) return