---
res:
  bibo_abstract:
  - "Ranking plays a central role in a large number of applications driven by RDF
    knowledge graphs. Over the last years, many popular RDF knowledge graphs have
    grown so large that rankings for the facts they contain cannot be computed directly
    using the currently common 64-bit platforms. In this paper, we tackle two problems:\r\nComputing
    ranks on such large knowledge bases efficiently and incrementally. First, we present
    D-HARE, a distributed approach for computing ranks on very large knowledge graphs.
    D-HARE assumes the random surfer model and relies on data partitioning to compute
    matrix multiplications and transpositions on disk for matrices of arbitrary size.
    Moreover, the data partitioning underlying D-HARE allows the execution of most
    of its steps in parallel.\r\nAs very large knowledge graphs are often updated
    periodically, we tackle the incremental computation of ranks on large knowledge
    bases as a second problem. We address this problem by presenting\r\nI-HARE, an
    approximation technique for calculating the overall ranking scores of a knowledge
    without the need to recalculate the ranking from scratch at each new revision.
    We evaluate our approaches by calculating ranks on the 3 × 10^9 and 2.4 × 10^9
    triples from Wikidata resp. LinkedGeoData. Our evaluation demonstrates\r\nthat
    D-HARE is the first holistic approach for computing ranks on very large RDF knowledge
    graphs. In addition, our incremental approach achieves a root mean squared error
    of less than 10E−7 in the best case. Both D-HARE\r\n and I-HARE are open-source
    and are available at: https://github.com/dice-group/incrementalHARE.\r\n@eng"
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Abdelmoneim Amer
      foaf_name: Desouki, Abdelmoneim Amer
      foaf_surname: Desouki
  - foaf_Person:
      foaf_givenName: Michael
      foaf_name: Röder, Michael
      foaf_surname: Röder
  - foaf_Person:
      foaf_givenName: Axel-Cyrille
      foaf_name: Ngonga Ngomo, Axel-Cyrille
      foaf_surname: Ngonga Ngomo
  bibo_doi: 10.1145/3342220.3343660
  dct_date: 2019^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/9781450368858
  dct_language: eng
  dct_publisher: ACM@
  dct_subject:
  - Knowledge Graphs
  - Ranking
  - RDF
  dct_title: Ranking on Very Large Knowledge Graphs@
...