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Associate Professor Andrew Trotman

Andrew_226

Owheo Building, Room 123A
Ph: 5728
andrew@cs.otago.ac.nz

In the 1980s I received a Bachelor degree, in the 1990s a Masters degree, and in the 2000s I have completed a PhD (all in Computer Science). Between degrees I spent time working commercially, and as a researcher.

My research interests include Information Retrieval, search engines, and Software Engineering. Can we find and extract useful information from the gigabytes that are available? If we can then how can we build efficient systems to do this?

For more information, see my research pages.

Selected Publications

  • J. Lin, A. Trotman (2015), Anytime Ranking for Impact-Ordered Indexes, Proceedings of the 2015 International Conference on The Theory of Information Retrieval (ICTIR 2015), pp. 301-304
  • A. Trotman (2014), Compression, SIMD, and Postings Lists, Proceedings of the 19th Australasian Document Computing Symposium (ADCS 2014)
  • A. Trotman, A. Puurula, B. Burgess (2014), Improvements to BM25 and Language Models Examined, Proceedings of the 19th Australasian Document Computing Symposium (ADCS 2014) [Winner of ADCS 2014 Best Paper Award]
  • M. Crane, A. Trotman, R. O'Keefe (2013), Maintaining Discriminatory Power in Quantized Indexes, Proceedings of the 22nd ACM international conference on Information & Knowledge Management (CIKM 2013)

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Publications

Goldberg, D., Trotman, A., Wang, X., Min, W., & Wan, Z. (2018). Further insights on drawing sound conclusions from noisy judgments. ACM Transactions on Information Systems, 36(4), 36. doi: 10.1145/3186195

Lin, J., & Trotman, A. (2017). The role of index compression in score-at-a-time query evaluation. Information Retrieval Journal, 20(3), 199-220. doi: 10.1007/s10791-016-9291-5

Hawking, D., Moffat, A., & Trotman, A. (2017). Efficiency in information retrieval: Introduction to special issue. Information Retrieval Journal, 20(3), 169-171. doi: 10.1007/s10791-017-9309-7

Goldberg, D., Trotman, A., Wang, X., Min, W., & Wan, Z. (2017). Drawing sound conclusions from noisy judgments. Proceedings of the 26th International Conference on World Wide Web. (pp. 529-537). New York, NY: ACM. doi: 10.1145/3038912.3052570

Crane, M., Culpepper, S., Lin, J., MacKenzie, J., & Trotman, A. (2017). A comparison of document-at-a-time and score-at-a-time query evaluation. Proceedings of the Tenth ACM International Conference on Web Search and Data Mining. (pp. 201-210). New York, NY: ACM. doi: 10.1145/3018661.3018726

Edited Book - Research

Geva, S., Kamps, J., Schenkel, R., & Trotman, A. (Eds.). (2011). Comparative evaluation of focused retrieval: Lecture notes in computer science (Vol. 6932). Berlin, Germany: Springer, 398p.

Geva, S., Kamps, J., & Trotman, A. (Eds.). (2010). Focused retrieval and evaluation: Revised and selected papers: Lecture notes in computer science (Vol. 6203), 6203. Berlin, Germany: Springer, 464p. doi: 10.1007/978-3-642-14556-8

Geva, S., Kamps, J., & Trotman, A. (Eds.). (2009). Advances in focused retrieval: Lecture notes in computer science (Vol. 5631). Berlin, Germany: Springer, 484p. doi: 10.1007/978-3-642-03761-0

Fuhr, N., Kamps, J., Lalmas, M., & Trotman, A. (Eds.). (2008). Focused access to XML documents: Lecture notes in computer science (Vol. 4862). Berlin, Germany: Springer, 456p. doi: 10.1007/978-3-540-85902-4

Fuhr, N., Lalmas, M., & Trotman, A. (Eds.). (2007). Comparative evaluation of XML information retrieval systems: Lecture notes in computer science (Vol. 4518). Berlin, Germany: Springer, 554p. doi: 10.1007/978-3-540-73888-6

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Chapter in Book - Research

Trappett, M., Geva, S., Trotman, A., Scholer, F., & Sanderson, M. (2012). Overview of the INEX 2011 Snippet Retrieval Track. In S. Geva, J. Kamps & R. Schenkel (Eds.), Focused retrieval of content and structure: Lecture notes in computer science (Vol. 7424). (pp. 283-294). Berlin, Germany: Springer. doi: 10.1007/978-3-642-35734-3_27

Trotman, A., & Crane, M. (2012). Snip! In S. Geva, J. Kamps & R. Schenkel (Eds.), Focused retrieval of content and structure: Lecture notes in computer science (Vol. 7424). (pp. 278-282). Heidelberg, Germany: Springer. doi: 10.1007/978-3-642-35734-3_26

Trotman, A., & Wang, Q. (2011). Overview of the INEX 2010 Data Centric Track. In S. Geva, J. Kamps, R. Schenkel & A. Trotman (Eds.), Comparative evaluation of focused retrieval: Lecture notes in computer science (Vol. 6932). (pp. 171-181). Berlin, Germany: Springer. doi: 10.1007/978-3-642-23577-1_15

Arvola, P., Geva, S., Kamps, J., Schenkel, R., Trotman, A., & Vainio, J. (2011). Overview of the INEX 2010 Ad Hoc Track. In S. Geva, J. Kamps, R. Schenkel & A. Trotman (Eds.), Comparative evaluation of focused retrieval: Lecture notes in computer science (Vol. 6932). (pp. 1-32). Berlin, Germany: Springer. doi: 10.1007/978-3-642-23577-1_1

Jia, X.-F., Alexander, D., Wood, V., & Trotman, A. (2011). University of Otago at INEX 2010. In S. Geva, J. Kamps, R. Schenkel & A. Trotman (Eds.), Comparative evaluation of focused retrieval: Lecture notes in computer science (Vol. 6932). (pp. 250-268). Berlin, Germany: Springer. doi: 10.1007/978-3-642-23577-1_23

Trotman, A., Alexander, D., & Geva, S. (2011). Overview of the INEX 2010 Link the Wiki Track. In S. Geva, J. Kamps, R. Schenkel & A. Trotman (Eds.), Comparative evaluation of focused retrieval: Lecture notes in computer science (Vol. 6932). (pp. 241-249). Berlin, Germany: Springer. doi: 10.1007/978-3-642-23577-1_22

Trotman, A., Jia, X.-F., & Geva, S. (2010). Fast and effective focused retrieval. In S. Geva, J. Kamps & A. Trotman (Eds.), Focused retrieval and evaluation: Lecture notes in computer science (Vol. 6203). (pp. 229-241). Berlin, Germany: Springer. doi: 10.1007/978-3-642-14556-8

Geva, S., Kamps, J., Lethonen, M., Schenkel, R., Thom, J. A., & Trotman, A. (2010). Overview of the INEX 2009 Ad Hoc Track. In S. Geva, J. Kamps & A. Trotman (Eds.), Focused retrieval and evaluation: Lecture notes in computer science (Vol. 6203). (pp. 4-25). Berlin, Germany: Springer. doi: 10.1007/978-3-642-14556-8

Huang, W. C., Geva, S., & Trotman, A. (2010). Overview of the INEX 2009 Link the Wiki track. In S. Geva, J. Kamps & A. Trotman (Eds.), Focused retrieval and evaluation: Lecture notes in computer science (Vol. 6203). (pp. 312-323). Berlin, Germany: Springer. doi: 10.1007/978-3-642-14556-8

Kamps, J., Geva, S., & Trotman, A. (2010). Analysis of the INEX 2009 Ad Hoc Track results. In S. Geva, J. Kamps & A. Trotman (Eds.), Focused retrieval and evaluation: Lecture notes in computer science (Vol. 6203). (pp. 26-48). Berlin, Germany: Springer. doi: 10.1007/978-3-642-14556-8

Huang, W. C., Geva, S., & Trotman, A. (2009). Overview of INEX 2008 Link the Wiki Track. In S. Geva, J. Kamps & A. Trotman (Eds.), Advances in focused retrieval: Lecture notes in computer science (Vol. 5631). (pp. 314-325). Berlin, Germany: Springer. doi: 10.1007/978-3-642-03761-0_32

Trotman, A. (2009). Processing structural constraints. In L. Liu & M. T. Özsu (Eds.), Encyclopedia of database systems. (pp. 2191-2195). New York: Springer.

Kamps, J., Geva, S., Trotman, A., Woodley, A., & Koolen, M. (2009). Overview of the INEX 2008 Ad Hoc Track. In S. Geva, J. Kamps & A. Trotman (Eds.), Advances in focused retrieval: Lecture notes in computer science (Vol. 5631). (pp. 1-28). Berlin, Germany: Springer. doi: 10.1007/978-3-642-03761-0_1

Trotman, A. (2009). Narrowed extended XPath I (NEXI). In L. Liu & M. T. Özsu (Eds.), Encyclopedia of database systems. (pp. 1876-1880). New York: Springer.

Jenkinson, D., Leung, K.-C., & Trotman, A. (2009). Wikisearching and Wikilinking. In S. Geva, J. Kamps & A. Trotman (Eds.), Advances in focused retrieval: Lecture notes in computer science (Vol. 5631). (pp. 374-388). Berlin, Germany: Springer. doi: 10.1007/978-3-642-03761-0_38

Lalmas, M., & Trotman, A. (2009). XML retrieval. In L. Liu & M. T. Özsu (Eds.), Encyclopedia of database systems. (pp. 3616-3621). New York: Springer.

Jenkinson, D., & Trotman, A. (2008). Wikipedia ad hoc passage retrieval and Wikipedia document linking. In N. Fuhr, J. Kamps, M. Lalmas & A. Trotman (Eds.), Focused access to XML documents: Lecture notes in computer science (Vol. 4862). (pp. 426-439). Berlin, Germany: Springer. doi: 10.1007/978-3-540-85902-4_36

Fuhr, N., Kamps, J., Lalmas, M., Malik, S., & Trotman, A. (2008). Overview of the INEX 2007 Ad Hoc Track. In N. Fuhr, J. Kamps, M. Lalmas & A. Trotman (Eds.), Focused access to XML documents: Lecture notes in computer science (Vol. 4862). (pp. 1-23). Berlin, Germany: Springer. doi: 10.1007/978-3-540-85902-4_1

Huang, D. W. C., Xu, Y., Trotman, A., & Geva, S. (2008). Overview of the INEX 2007 Link the Wiki Track. In N. Fuhr, J. Kamps, M. Lalmas & A. Trotman (Eds.), Focused access to XML documents: Lecture notes in computer science (Vol. 4862). (pp. 373-387). Berlin, Germany: Springer. doi: 10.1007/978-3-540-85902-4_32

Lehtonen, M., Pharo, N., & Trotman, A. (2007). A taxonomy for XML retrieval use cases. In N. Fuhr, M. Lalmas & A. Trotman (Eds.), Comparative evaluation of XML information retrieval systems: Lecture notes in computer science (Vol. 4518). (pp. 413-422). Berlin, Germany: Springer. doi: 10.1007/978-3-540-73888-6_39

Malik, S., Trotman, A., Lalmas, M., & Fuhr, N. (2007). Overview of INEX 2006. In N. Fuhr, M. Lalmas & A. Trotman (Eds.), Comparative evaluation of XML information retrieval systems: Lecture notes in computer science (Vol. 4518). (pp. 1-11). Berlin, Germany: Springer. doi: 10.1007/978-3-540-73888-6_1

Trotman, A., Pharo, N., & Lehtonen, M. (2007). XML-IR users and use cases. In N. Fuhr, M. Lalmas & A. Trotman (Eds.), Comparative evaluation of XML information retrieval systems: Lecture notes in computer science (Vol. 4518). (pp. 400-412). Berlin, Germany: Springer. doi: 10.1007/978-3-540-73888-6_38

Trotman, A., & Lalmas, M. (2006). The interpretation of CAS. In N. Fuhr, M. Lalmas, S. Malik & G. Kazai (Eds.), Advances in XML information retrieval and evaluation: Lecture notes in computer science (Vol. 3977). (pp. 58-71). Berlin, Germany: Springer. doi: 10.1007/11766278_5

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Journal - Research Article

Goldberg, D., Trotman, A., Wang, X., Min, W., & Wan, Z. (2018). Further insights on drawing sound conclusions from noisy judgments. ACM Transactions on Information Systems, 36(4), 36. doi: 10.1145/3186195

Lin, J., & Trotman, A. (2017). The role of index compression in score-at-a-time query evaluation. Information Retrieval Journal, 20(3), 199-220. doi: 10.1007/s10791-016-9291-5

Tang, L.-X., Geva, S., Trotman, A., Xu, Y., & Itakura, K. Y. (2014). An evaluation framework for cross-lingual link discovery. Information Processing & Management, 50(1), 1-23. doi: 10.1016/j.ipm.2013.07.003

Trotman, A., Geva, S., Kamps, J., Lalmas, M., & Murdock, V. (2010). Current research in focused retrieval and result aggregation. Information Retrieval, 13, 407-411. doi: 10.1007/s10791-010-9137-5

Piwowarski, B., Trotman, A., & Lalmas, M. (2008). Sound and complete relevance assessment for XML retrieval. ACM Transactions on Information Systems, 27(1), 1:1-1:37. doi: 10.1145/1416950.1416951

Trotman, A., & Handley, C. (2008). Programming contest strategy. Computers & Education, 50(3), 821-837.

Trotman, A. (2005). Choosing document structure weights. Information Processing & Management, 41, 243-264.

Trotman, A. (2005). Learning to rank. Information Retrieval, 8(3), 359-381.

Trotman, A. (2004). Searching structured documents. Information Processing & Management, 40, 619-632.

Trotman, A. (2003). Compressing inverted files. Information Retrieval, 6(1), 5-19.

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Journal - Research Other

Bellot, P., Doucet, A., Geva, S., Gurajada, S., Kamps, J., Kazai, G., … Trotman, A., … Wang, Q. (2013). Report on INEX 2013. ACM SIGIR Forum, 47(2), 21-32. doi: 10.1145/2568388.2568393

Bellot, P., Chappell, T., Doucet, A., Geva, S., Gurajada, S., Kamps, J., … Trotman, A., & Wang, Q. (2012). Report on INEX 2012. ACM SIGIR Forum, 46(2), 50-59. doi: 10.1145/2422256.2422264

Bellot, P., Chappell, T., Doucet, A., Geva, S., Kamps, J., Kazai, G., … Trotman, A., & Wang, Q. (2012). Report on INEX 2011. ACM SIGIR Forum, 46(1), 33-42.

Alexander, D., Arvola, P., Beckers, T., Bellot, P., Chappell, T., De Vries, C. M., … Trotman, A., … Wu, C. (2011). Report on INEX 2010. ACM SIGIR Forum, 45(1), 2-17.

Beckers, T., Bellot, P., Demartini, G., Denoyer, L., De Vries, C. M., Doucet, A., … Trotman, A., & de Vries, A. P. (2010). Report on INEX 2009. ACM SIGIR Forum, 44(1), 38-75. doi: 10.1145/1842890.1842897

Demartini, G., Denoyer, L., Doucet, A., . . ., Trotman, A., & et al (2009). Report on INEX 2008. ACM SIGIR Forum, 43(1), 22-28. doi: 10.1145/1670598.1670603

Kamps, J., Geva, S., & Trotman, A. (2008). Report on the SIGIR 2008 Workshop on Focused Retrieval. ACM SIGIR Forum, 42(2), 59-65. doi: 10.1145/1480506.1480517

Pharo, N., & Trotman, A. (2007). The use case track at INEX 2006. ACM SIGIR Forum, 41(1), 64-68.

Trotman, A., Geva, S., & Kamps, J. (2007). Report on the SIGIR 2007 workshop on focused retrieval. ACM SIGIR Forum, 41(2), 97-103.

Trotman, A., & Geva, S. (2006). Report on the SIGIR 2006 workshop on XML element retrieval methodology. ACM SIGIR Forum, 40(2), 42-48.

Trotman, A., & Lalmas, M. (2005). Report on the INEX 2005 workshop on element retrieval methodology. ACM SIGIR Forum, 39(2), 46-51.

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Journal - Professional & Other Non-Research Articles

Hawking, D., Moffat, A., & Trotman, A. (2017). Efficiency in information retrieval: Introduction to special issue. Information Retrieval Journal, 20(3), 169-171. doi: 10.1007/s10791-017-9309-7

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