Abstract
Hiring knowledgeable and cost-effective individuals, who use their knowledge and expertise to boost the organization, is extremely important for organizations as they are the most valuable assets. T-shaped experts are the best option based on agile methodology. The T-shaped professional has a deep understanding of one topic and broad knowledge of several others. Compared to other types of professionals, T-shaped professionals are better communicators and cheaper to hire. Finding T-shaped experts in a given skill area requires determining each candidate’s depth of knowledge and shape of expertise. To estimate each candidate’s depth of knowledge in a given skill area, we propose a translation-based method that utilizes two attention-based skill translation models to overcome the vocabulary mismatch between skills and user documents. We also propose two new approaches based on binary cross-entropy and focal loss to determine whether each user is T-shaped. Our experiments on three collections of the StackOverflow dataset demonstrate the efficiency of our proposed method compared to the state-of-the-art approaches.
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The dataset used in this paper is a publicly available dataset.
References
Almuhanna, A. A., & Yafooz, W. M. S. (2021). Expert finding in scholarly data: An overview. In Proceedings of IEEE International IOT, Electronics and Mechatronics Conference (IEMTRONICS 2021), pp. 1–7. IEEE. https://doi.org/10.1109/IEMTRONICS52119.2021.9422595.
Balog, K., Azzopardi, L., & de Rijke, M. (2009). A language modeling framework for expert finding. Information Processing & Management, 45(1), 1–19. https://doi.org/10.1016/j.ipm.2008.06.003
Conley, S. N., Foley, R. W., Gorman, M. E., et al. (2017). Acquisition of t-shaped expertise: an exploratory study. Social Epistemology, 31(2), 65–183. https://doi.org/10.1080/02691728.2016.1249435
de Campos, L. M., Fernandez-Luna, J. M., Huete, J. F., et al. (2021). Lda-based term profiles for expert finding in a political setting. Journal of Intelligent Information Systems, 56(3), 529–559. https://doi.org/10.1007/s10844-021-00636-x
Demirkan, H., & Spohrer, J. (2015). T-shaped innovators: Identifying the right talent to support service innovation. Research-Technology Management, 58(5), 12–15. https://doi.org/10.5437/08956308X5805007
Demirkan, H., & Spohrer, J. C. (2018). Commentary-cultivating t-shaped professionals in the era of digital transformation. Service Science, 10(1), 98–109. https://doi.org/10.1287/serv.2017.0204
Fallahnejad, Z., & Beigy, H. (2022). Attention-based skill translation models for expert finding. Expert Systems with Applications, 193, 116433. https://doi.org/10.1016/j.eswa.2021.116433
Fejzer, M., Przymus, P., & Stencel, K. (2018). Profile based recommendation of code reviewers. Journal of Intelligent Information Systems, 50(3), 597–619. https://doi.org/10.1007/s10844-017-0484-1
Fu, J., Li, Y., Zhang, Q., et al. (2020). Recurrent memory reasoning network for expert finding in community question answering. In Proceedings of the 13th International Conference on Web Search and Data Mining (WSDM 2020), pp. 187–195. Association for Computing Machinery. https://doi.org/10.1145/3336191.3371817.
Geyik, S. C., Guo, Q., Hu, B., et al. (2018) Talent search and recommendation systems at linkedin: Practical challenges and lessons learned. In Proceedings of the 41st International ACM SIGIR Conference on Research & Development in Information Retrieval, pp. 1353–1354. Association for Computing Machinery. https://doi.org/10.1145/3209978.3210205.
Gharebagh, S. S., Rostami, P., & Neshati, M. (2018) T-shaped mining: A novel approach to talent finding for agile software teams. In Proceedings of the 40th European Conference on Information Retrieval (ECIR 2018): Advances in Information Retrieval, pp. 411–423. Springer. https://doi.org/10.1007/978-3-319-76941-7_31.
Hoang, D. T., Nguyen, N. T., Collins, B., et al. (2021). Decision support system for solving reviewer assignment problem. Cybernetics and Systems, 52(5), 379–397. https://doi.org/10.1080/01969722.2020.1871227
Janusz, A., Stawicki, S., Drewniak, M., et al. (2018). How to match jobs and candidates - a recruitment support system based on feature engineering and advanced analytics. In Proceedings of the 17th International Conference of Information Processing and Management of Uncertainty in Knowledge-Based Systems. Theory and Foundations (IPMU 2018), pp. 503–514. Springer International Publishing. https://doi.org/10.1007/978-3-319-91476-3_42.
Janusz, A., Ślęzak, D., Stawicki, S., et al. (2023). A practical study of methods for deriving insightful attribute importance rankings using decision bireducts. Information Sciences, 645, 119354. https://doi.org/10.1016/j.ins.2023.119354
Kang, Y. B., Du, H., Forkan, A. R. M., et al. (2023). Expfinder: A hybrid model for expert finding from text-based expertise data. Expert Systems with Applications, 211, 118691. https://doi.org/10.1016/j.eswa.2022.118691
KhudaBukhsh, A. R., Carbonell, J. G., & Jansen, P. J. (2018). Robust learning in expert networks: a comparative analysis. Journal of Intelligent Information Systems, 51(2), 207–234. https://doi.org/10.1007/s10844-018-0515-6
Kumar, V., & Pedanekar, N. (2016). Mining shapes of expertise in online social q &a communities. In Proceedings of the 19th ACM Conference on Computer Supported Cooperative Work and Social Computing Companion, pp. 317–320. Association for Computing Machinery. https://doi.org/10.1145/2818052.2869096.
Kundu, D., Pal, R. K., & Mandal, D. P. (2021). Topic sensitive hybrid expertise retrieval system in community question answering services. Knowledge-Based Systems, 211, 106535. https://doi.org/10.1016/j.knosys.2020.106535
Lin, T. Y., Goyal, P., Girshick, R., et al. (2017). Focal loss for dense object detection. In Proceedings of the IEEE International Conference on Computer Vision (ICCV), pp. 2980–2988. IEEE. https://doi.org/10.1109/ICCV.2017.324.
Lin, S., Hong, W., Wang, D., et al. (2017). A survey on expert finding techniques. Journal of Intelligent Information Systems, 49(2), 255–279. https://doi.org/10.1007/s10844-016-0440-5
Liu, Y., Tang, W., Liu, Z., et al. (2022). High-quality domain expert finding method in cqa based on multi-granularity semantic analysis and interest drift. Information Sciences, 596, 395–413. https://doi.org/10.1016/j.ins.2022.02.039
Mirzaei, M., Sander, J., & Stroulia, E. (2019). Multi-aspect review-team assignment using latent research areas. Information Processing & Management, 56(3), 858–878. https://doi.org/10.1016/j.ipm.2019.01.007
Neshati, M., Beigy, H., & Hiemstra, D. (2014). Expert group formation using facility location analysis. Information Processing & Management, 50(2), 361–383. https://doi.org/10.1016/j.ipm.2013.10.001
Neshati, M., Fallahnejad, Z., & Beigy, H. (2017). On dynamicity of expert finding in community question answering. Information Processing & Management, 53(5), 1026–1042. https://doi.org/10.1016/j.ipm.2017.04.002
Neshati, M., Hashemi, S. H., & Beigy, H. (2014). Expertise finding in bibliographic network: Topic dominance learning approach. IEEE Transactions on Cybernetics, 44(12), 2646–2657. https://doi.org/10.1109/TCYB.2014.2312614
Nobari, A. D., Neshati, M., & Gharebagh, S. S. (2020). Quality-aware skill translation models for expert finding on stackoverflow. Information Systems, 87, 101413. https://doi.org/10.1016/j.is.2019.07.003
Norambuena, I. N., & Bergel, A. (2021). Building a bot for automatic expert retrieval on discord. In Proceedings of the 5th International Workshop on Machine Learning Techniques for Software Quality Evolution, pp. 25–30. Association for Computing Machinery. https://doi.org/10.1145/3472674.3473982.
Pal, A., Herdagdelen, A., Chatterji, S., et al. (2016). Discovery of topical authorities in instagram. In Proceedings of the 25th International Conference on World Wide Web (WWW 2016), pp. 1203–1213. International World Wide Web Conferences Steering Committee. https://doi.org/10.1145/2872427.2883078.
Pradhan, T., & Pal, S. (2020). A multi-level fusion based decision support system for academic collaborator recommendation. Knowledge-Based Systems, 197, 105784. https://doi.org/10.1016/j.knosys.2020.105784
Raharjo, T., & Purwandari, B. (2020). Agile project management challenges and mapping solutions: A systematic literature review. In Proceedings of the 3rd International Conference on Software Engineering and Information Management (ICSIM 2020), pp. 123–129. Association for Computing Machinery. https://doi.org/10.1145/3378936.3378949.
Ramanath, R., Inan, H., Polatkan, G., et al. (2018) Towards deep and representation learning for talent search at linkedin. In Proceedings of the 27th ACM International Conference on Information and Knowledge Management (CIKM 2018), pp. 2253–2261. Association for Computing Machinery. https://doi.org/10.1145/3269206.3272030.
Rostami, P., & Neshati, M. (2019). T-shaped grouping: Expert finding models to agile software teams retrieval. Expert Systems with Applications, 118, 231–245. https://doi.org/10.1016/j.eswa.2018.10.015
Rostami, P., & Neshati, M. (2021). Intern retrieval from community question answering websites: A new variation of expert finding problem. Expert Systems with Applications, 181, 115044. https://doi.org/10.1016/j.eswa.2021.115044
Rostami, P., & Shakery, A. (2023). A deep learning-based expert finding method to retrieve agile software teams from cqas. Information Processing & Management, 60(2), 103144. https://doi.org/10.1016/j.ipm.2022.103144
Sorkhani, S., Etemadi, R., Bigdeli, A., et al. (2022). Feature-based question routing in community question answering platforms. Information Sciences, 608, 696–717. https://doi.org/10.1016/j.ins.2022.06.072
Wang, J., Sun, J., Lin, H., et al. (2017). Convolutional neural networks for expert recommendation in community question answering. Science China Information Sciences, 60(11), 110102. https://doi.org/10.1007/s11432-016-9197-0
Xu, Y., Zhou, D., & Lawless, S. (2017). Inferring your expertise from twitter: Combining multiple types of user activity. In Proceedings of the International Conference on Web Intelligence (WI 2017), pp. 589–598. Association for Computing Machinery. https://doi.org/10.1145/3106426.3106468.
Yuan, S., Zhang, Y., Tang, J., et al. (2020). Expert finding in community question answering: a review. Artificial Intelligence Review, 53(2), 843–874. https://doi.org/10.1007/s10462-018-09680-6
Zhang, X., Cheng, W., Zong, B., et al. (2020). Temporal context-aware representation learning for question routing. In Proceedings of the 13th International Conference on Web Search and Data Mining (WSDM 2020), pp. 753–761. Association for Computing Machinery. https://doi.org/10.1145/3336191.3371847.
Zhao, X., & Zhang, Y. (2022). Reviewer assignment algorithms for peer review automation: A survey. Information Processing & Management, 59(5), 103028. https://doi.org/10.1016/j.ipm.2022.103028
Zhou, Q., Li, L., & Tong, H. (2019). Towards real time team optimization. In Proceedings of the IEEE International Conference on Big Data (IEEE BigData 2019), pp. 1008–1017. IEEE. https://doi.org/10.1109/BigData47090.2019.9006078.
Ziaimatin, H., Groza, T., Tudorache, T., et al. (2016). Modelling expertise at different levels of granularity using semantic similarity measures in the context of collaborative knowledge-curation platforms. Journal of Intelligent Information Systems, 47(3), 469–490. https://doi.org/10.1007/s10844-015-0376-1
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Hamid Beigy reports was provided by Sharif University of Technology.
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Zohreh Fallahnejad is the coordinator and primary author of this article. She contributed significantly to the main idea and essential aspects of writing the article. Mahmood Karimian contributed to the development of certain methods presented in the article. Fatemeh Lashkari assisted in the writing process. Hamid Beigy serves as the supervisor of this article. All authors participated in the paper’s review process.
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Fallahnejad, Z., Karimian, M., Lashkari, F. et al. T-shaped expert mining: a novel approach based on skill translation and focal loss. J Intell Inf Syst (2023). https://doi.org/10.1007/s10844-023-00831-y
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DOI: https://doi.org/10.1007/s10844-023-00831-y