Answering complex First-Order Logical (FOL) queries on large-scale incomplete knowledge graphs (KGs) is an important yet challenging task. Recent advances embed logical and KG entities in the same space conduct query answering via dense similarity search. However, most operators designed previous studies do not satisfy axiomatic system of classical logic, limiting their performance. Moreover, t...

Age of Information (AoI) has become an important concept in communications, as it allows system designers to measure the freshness information available remote monitoring or control processes. However, its definition tacitly assumes that new is used at any time, which not always case: instants collected and may be dependent on a certain query process, resource-constrained environments such most...

Ontology-mediated query answering (OMQA) emerged as a paradigm to enhance querying of data sources with an ontology that encodes background knowledge. In applications involving large amounts from multiple sources, it might well be the case inconsistency arises, making standard useless, since everything is entailed by inconsistent knowledge base. Being able provide meaningful answers in presence...