An Algebraic Prolog for Reasoning about Possible Worlds

By Angelika Kimmig, Guy Van den Broeck, Luc De Raedt. 2011

69 citations recorded by the source corpus.

We introduce aProbLog, a generalization of the probabilistic logic programming language ProbLog. An aProbLog program consists of a set of definite clauses and a set of algebraic facts; each such fact is labeled with an element of a semiring. A wide variety of labels is possible, ranging from probability values to reals (representing costs or utilities), polynomials, Boolean functions or data structures. The semiring is then used to calculate labels of possible worlds and of queries. We formally define the semantics of aProbLog and study the aProbLog inference problem, which is concerned with computing the label of a query. Two conditions are introduced that allow one to simplify the inference problem, resulting in four different algorithms and settings. Representative basic problems for each of these four settings are: is there a possible world where a query is true (SAT), how many such possible worlds are there (#SAT), what is the probability of a query being true (PROB), and what is the most likely world where the query is true (MPE). We further illustrate these settings with a number of tasks requiring more complex semirings.

Subfields: Artificial Intelligence, Computational Theory and Mathematics

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The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

  1. Sebastijan Dumancic
  2. Angelika Kimmig
  3. Robin Manhaeve
  4. Luc De Raedt
  5. Thomas Demeester
  6. Lise Getoor
  7. Matthias Broecheler
  8. Stephen H. Bach

In Computational Theory and Mathematics

  1. Angelika Kimmig
  2. Luc De Raedt
  3. Thomas Demeester
  4. Lise Getoor
  5. Matthias Broecheler
  6. Stephen H. Bach
  7. Sebastijan Dumancic
  8. Bert Huang

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