Entropy and information theory
Entropy and information theory
Probabilistic Datalog: implementing logical information retrieval for advanced applications
Journal of the American Society for Information Science
Probabilistic logic programming with conditional constraints
ACM Transactions on Computational Logic (TOCL)
Probabilistic Logic Programming under Inheritance with Overriding
UAI '01 Proceedings of the 17th Conference in Uncertainty in Artificial Intelligence
Combining probabilistic logic programming with the power of maximum entropy
Artificial Intelligence - Special issue on nonmonotonic reasoning
International Journal of Approximate Reasoning
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
ProbLog: a probabilistic prolog and its application in link discovery
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
Weak nonmonotonic probabilistic logics
Artificial Intelligence
CLP(BN): constraint logic programming for probabilistic knowledge
UAI'03 Proceedings of the Nineteenth conference on Uncertainty in Artificial Intelligence
Adaptive dialogue strategy selection through imprecise probabilistic query answering
ECSQARU'11 Proceedings of the 11th European conference on Symbolic and quantitative approaches to reasoning with uncertainty
On lifted inference for a relational probabilistic conditional logic with maximum entropy semantics
FoIKS'12 Proceedings of the 7th international conference on Foundations of Information and Knowledge Systems
Focused most probable world computations in probabilistic logic programs
Annals of Mathematics and Artificial Intelligence
Transactions on Large-Scale Data- and Knowledge-Centered Systems VI
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In probabilistic logic programming, given a query, either a probability interval or a precise probability obtained by using the maximum entropy principle is returned for the query. The former can be noninformative (e.g., interval [0,1]) and the reliability of the latter is questionable when the priori knowledge is imprecise. To address this problem, in this paper, we propose some methods to quantitatively measure if a probability interval or a single probability is sufficient for answering a query. We first propose an approach to measuring the ignorance of a probabilistic logic program with respect to a query. The measure of ignorance (w.r.t. a query) reflects how reliable a precise probability for the query can be and a high value of ignorance suggests that a single probability is not suitable for the query. We then propose a method to measure the probability that the exact probability of a query falls in a given interval, e.g., a second order probability. We call it the degree of satisfaction. If the degree of satisfaction is high enough w.r.t. the query, then the given interval can be accepted as the answer to the query. We also provide properties of the two measures and use an example to demonstrate the significance of the measures.