Mahei Li
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Dr.
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Li
First name
Mahei
Email
mahei.li@unisg.ch

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  • Publication
    Knowledge is Power: Provide your IT-Support with Domain-Specific High-Quality Solution Material
    (Springer, 2021)
    Schmidt, Simon L.
    ;
    Li, Mahei
    ;
    Weigel, Sascha
    ;
    Peters, Christoph
    As more and more business processes are based on IT services the high availability of these processes is dependent on the IT-Support. Thus, making the IT-Support a critical success factor of companies. This paper presents how this department can be supported by providing the staff with domain-specific and high-quality solution material to help employees faster when errors occur. The solution material is based on previously solved tickets because these contain precise domain-specific solutions narrowed down to e.g., specific versions and configurations of hard-/software used in the company. To retrieve the solution material ontologies are used that contain the domain-specific vocabulary needed. Because not all previously solved tickets contain high-quality solution material that helps the staff to fix issues the designed IT-Support system separates lowfrom high-quality solution material. This paper presents (a) theory- and practicalmotivated design requirements that describe the need for automatically retrieved solution material, (b) develops two major design principles to retrieve domainspecific and high-quality solution material, and (c) evaluates the instantiations of them as a prototype with organic real-world data. The results show that previously solved tickets of a company can be pre-processed and retrieved to ITSupport staff based on their current queries.
    Type: conference paper
    Journal: International Conference on Design Science Research in Information Systems and Technology (DESRIST)
    URI: https://www.alexandria.unisg.ch/handle/20.500.14171/111306
  • Publication
    Empowering Recommender Systems in ITSM: A Pipeline Reference Model for AI-based Textual Data Quality Enrichment
    ( 2023)
    Reinhard, Philipp
    ;
    Li, Mahei
    ;
    Dickhaut, Ernestine
    ;
    Peters, Christoph
    ;
    Leimeister, Jan Marco
    AI-based recommendation systems to augment working conditions in the field of IT service management (ITSM) have attracted new attention. However, many IT support organizations possess high volumes of tickets but are confronted with low quality, to which they train the underlying models of their AI systems. In particular, support tickets are documented insufficiently due to time pressure and lack of motivation. Following design science research, we design and evaluate an analytics pipeline to address the data quality issue. The pipeline can be applied to assess and extract high-quality support tickets for subsequent model training and operation. Based on a data set of 60.000 real-life support tickets from a manufacturing company, we develop the artifact, instantiate a recommender system and achieve a higher pre-diction performance in comparison to naïve enrichment methods. In terms of data management literature, we contribute to the understanding of as-sessing textual ticket data quality. By deriving a pipeline reference model, we move towards a general approach to designing machine learning-driven data quality analytics pipelines for attached recommender systems.
    Journal: International Conference on Design Science Research (DESRIST)
    URI: https://www.alexandria.unisg.ch/handle/20.500.14171/107924