Proceedings of the 12th European Conference on Knowledge ...

Benedikt Schmidt, Todor Stoitsev and Max Mühlhäuser
accessed and produced during work execution. The second study has shown that <strong>the</strong> textual content
for similar tasks was similar among <strong>the</strong> different users and that <strong>the</strong> textual content <strong>of</strong> <strong>the</strong> study
participants enabled <strong>the</strong> identification <strong>of</strong> topics that stand for <strong>the</strong> domain <strong>of</strong> <strong>the</strong> different tasks.
Process and content aspect are considered as important, complementary execution aspects. The
domain <strong>of</strong> a task manifests in <strong>the</strong> textual content whereas <strong>the</strong> execution is realized by <strong>the</strong> application
<strong>of</strong> work techniques, namely knowledge actions that are realized by desktop operations. From this
point <strong>of</strong> view, we understand tasks as realizations <strong>of</strong> working technique combinations for content
domains.
Table 7: Words with highest relevance per topic as LDA output <strong>of</strong> study data for 5 topics (probability
that a word belongs to <strong>the</strong> topic is given in brackets)
Topic1≈Task5 Topic2≈Task2 Topic3≈Task3 Topic4≈Task4 Topic5≈Task1
Business (0.00311) Knowledge
University (0.00244) Europe (0.00213) Participants
(0.00312)
(0.00167)
Computer (0.00233) Processes (0.00238) Master (0.00241) Develop (0.00185) Demand
(0.00144)
Implementation People (0.00228) Planning (0.00216) Component
Travel (0.00141)
(0.00232)
(0.00163)
Job (0.00221) Project (0.00193) Production
(0.00214)
Role (0.00143) Costs (0.00135)
Contact (0.0022) Analysis (0.00162) Transport (0.00198) Processing
(0.00142)
Flight (0.00132)
Systems (0.0021) Products (0.00157) Demand (0.00185) Application (0.00138) Trip (0.00131)
Resources
Distribution
Single (0.0018) Aviation (0.0012) Tool (0.0013)
(0.00208)
(0.00153)
International Activities (0.00147) Updated (0.00178) Services (0.00115) Address
(0.00185)
(0.00122)
Experience
(0.00181)
Task (0.00143) Orders (0.00177) Products (0.00114) Nights (0.00115)
Requirements Roles (0.00142) Stock (0.00157) Corporation
California
(0.0018)
(0.00113)
(0.00111)
Acknowledgement
Work presented in this paper has been partly funded by <strong>the</strong> German Federal Ministry <strong>of</strong> Education
and Research, grant no. 01IA08006.
References
Bannon, L., Cypher, A., Greenspan, S., & Monty, M. L. (1983). Evaluation and analysis <strong>of</strong> users activity
organization. <strong>Proceedings</strong> <strong>of</strong> <strong>the</strong> SIGCHI conference on Human Factors in Computing Systems (pp. 54-57).
ACM. Retrieved March 2, 2011, from http://portal.acm.org/citation.cfm?id=801580.
Blei, D. M., Ng, A. Y., & Jordan, M. I. (2003). Latent Dirichlet Allocation. (J. Lafferty, Ed.)Journal <strong>of</strong> Machine
Learning Research, 3(4-5), 993-1022. doi: 10.1162/jmlr.2003.3.4-5.993.
Czerwinski, M., Horvitz, E., & Wilhite, S. (2004). A diary study <strong>of</strong> task switching and interruptions. <strong>Proceedings</strong> <strong>of</strong>
<strong>the</strong> SIGCHI. Retrieved September 22, 2010, from http://portal.acm.org/citation.cfm?id=985715.
Ferreira, D., Zacarias, M., Malheiros, M., & Ferreira, P. (2007). Approaching process mining with sequence
clustering: experiments and findings. Business Process Management, (1), 360–374. Springer. Retrieved
March 24, 2011, from http://www.springerlink.com/index/744g104721811151.pdf.
Hädrich, T. (2008). Situation-oriented Provision <strong>of</strong> Knowledge Services. Dissertation, Martin Lu<strong>the</strong>r Universität
Halle-Wittenberg. Retrieved from http://deposit.ddb.de/cgibin/dokserv?idn=994624166&amp;dok_nam=abstract&amp;dok_ext=htm&amp;filename=994624166.htm.
Lokaiczyk, R., Faatz, A., Beckhaus, A., & Goertz, M. (2007). Enhancing Just-in-Time E-Learning Through
Machine Learning on Desktop Context Sensors. Context, 330-341.
Mark, G., Gonzalez, V. M., & Harris, J. (2005). No Task Left Behind ? Examining <strong>the</strong> Nature <strong>of</strong> Fragmented
Work. Stand.
Schultze, U. (2000). A confessional account <strong>of</strong> an ethnography about knowledge work. MIS Quarterly, 24(1), 3-
Stenmark, D. (2001). Leveraging Tacit Organisational Knowledge. Journal <strong>of</strong> Management, 17(3), 9-24.
Steyvers, M., & Griffiths, T. (2010). Probabilistic Topic Models. Latent Semantic Analysis: A Road to Meaning.
(Vol. 22, pp. 1028-1040). doi: 10.1109/TKDE.2009.122.
Veiga, G. M., & Ferreira, D. R. (2010). Understanding spaghetti models with sequence clustering for prom.
Business Process Management Workshops (p. 92–103). Springer. Retrieved March 24, 2011, from
http://www.springerlink.com/index/KM1T6130221611K6.pdf.
Walsham, G. (2005). Knowledge Management Systems : Representation and Communication in Context 1
Introduction 2 Knowledge , Representation and Communication. International Journal, 1(1), 6-18.
898