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- 148 creator haofen-wang.
- 148 creator liang-zhao.
- 148 creator tong-ruan.
- 148 creator yang-li.
- 148 type InProceedings.
- 148 label "From Queriability to Informativity, assessing "Quality in Use'' of DBpedia and YAGO".
- 148 sameAs 148.
- 148 abstract "In recent years, an increasing number of semantic data sources are published on the Web. These sources are further interlinked to form the Linking Open Data (LOD) cloud. To make full use of these data sets, it is a strong demand to learn their data qualities. Researchers have proposed several metrics and developed tools to measure qualities of the data sets in LOD from different dimensions. However, there exist few studies on evaluating data set quality from users' usability perspective while usability has great impacts on the spreading and re-use of LOD data sets. On the other hand, usability is well-studied in the area of software quality. In the newly published standard ISO/IEC 25010, usability is further broadened to include the notion “quality in use'' besides the other two factors namely internal and external. In this paper, we firstly adapt the notions and the methods used in software quality to assessing the data set quality. Secondly, we formally define two quality dimensions namely Queriability and Informativity from the perspective of quality in use. The two proposed dimensions correspond to querying and answering, which are the most frequent usage scenarios for accessing LOD data sets. Then we provide a series of metrics to measure the two dimensions. At last, we apply the metrics to two representative data sets in LOD (i.e., YAGO and DBpedia). In the evaluating process, we select dozens of questions from both QALD and WebQuestions, and ask a group of users to construct queries as well as to check answers with the help of our usability testing tool. The findings during the assessment not only illustrate the capability of our method and metrics, but also give new insights of data quality of the two knowledge bases.".
- 148 hasAuthorList authorList.
- 148 isPartOf proceedings.
- 148 title "From Queriability to Informativity, assessing "Quality in Use'' of DBpedia and YAGO".