Assessing the similarity of cyanide-free gold leaching processes: A case-based reasoning application

Maria Leikola (Corresponding Author), Christian Sauer, Lotta Rintala, Jari Aromaa, Mari Lundström

    Research output: Contribution to journalArticleScientificpeer-review

    4 Citations (Scopus)


    Hydrometallurgical researchers, and other professionals alike, invest significant amounts of time reading scientific articles, technical notes, and other scientific documents, while looking for the most relevant information for their particular research interest. In an attempt to save the researcher’s time, this study presents an information retrieval tool using case-based reasoning. The tool was built for comparing scientific articles concerning cyanide-free leaching of gold ores/concentrates/tailings. Altogether, 50 cases of experiments were gathered in a case base. 15 different attributes related to the treatment of the raw material and the leaching conditions were selected to compare the cases. The attributes were as follows: Pretreatment, Overall method, Complexant source, Oxidant source, Complexant concentration, Oxidant concentration, Temperature, pH, Redox-potential, Pressure, Materials of construction, Extraction, Extraction rate, Reagent consumption, and Solid-liquid ratio. The resulting retrieval tool (LeachSim) was able to rank the scientific articles according to their similarity with the user’s research interest. Such a tool could eventually aid the user in finding the most relevant information, but not replace thorough understanding and human expertise.
    Original languageEnglish
    Article number434
    Number of pages24
    Issue number10
    Publication statusPublished - 2 Oct 2018
    MoE publication typeNot Eligible


    • Case-based reasoning
    • Cyanide-free gold
    • Hydrometallurgy
    • Information retrieval
    • Knowledge modelling


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