<?xml version="1.0"?><!DOCTYPE article SYSTEM "/project/take/software/searchbench_offline_processing/paperxml_generator/aclextractor/src/python/../resource/dtd/paperxml.dtd"><article><header><firstpageheader><page local="1"/><title>Obituaries: Hozumi Tanaka</title><pubinfo>© 2009Association for Computational Linguistics</pubinfo><author surname="Tsujii" givenname="Jun'ichi"><org  name="Bath University" country="United Kingdom"/></author><author surname="Tokunaga" givenname="Takenobu"><org  name="Bath University" country="United Kingdom"/></author><author surname="Baldwin" givenname="Timothy"><org  name="Bath University" country="United Kingdom"/></author></firstpageheader><frontmatter><p><b>Obituaries</b></p><p><b>Alison Cawsey</b></p><p>Greg Michaelson* Heriot-Watt University, UK</p></frontmatter><abstract></abstract></header><body><section title=""><p>Alison Cawsey passed away in June 2009. She was a remarkable person and her death is a profound professional and personal loss. Born in 1963, Alison grew up in the south of England and, from 1981 to 1984, studied Natural Sciences at Jesus College Cambridge. During this period she met her life partner Richard. Alison always excelled academically but not always in the sporting arena; however, at Cambridge, like her dad, she finally found a sport she could sit down to: She took up rowing!</p><p>After completing her degree in Physics she spent a year as a volunteer at a National Children's Home. Among other things she helped disabled children organize their lives with the aid of a computer. This clearly influenced her choice of further study and career. Moving to the University of Edinburgh in 1985, she gained a distinguished Masters in Knowledge Based Systems in 1986, and a Ph.D. in Artificial Intelligence in 1989. Subsequently, she went on to carry out postdoctoral research at Cambridge and Glasgow, then teaching Computing at Glasgow before joining us at Heriot-Watt in 1995. Alison was promoted to Senior Lecturer in 2002. I am sure that, were it not for her long battle with cancer, she would have enjoyed considerable further academic advancement and recognition.</p><p>Alison's doctorate was awarded for her sterling research into the Computer Gen­eration of Explanatory Dialogues. Explanation is an excellent way of characterizing Alison's many professional contributions: she was always concerned with making complicated ideas understandable, both as a researcher and as a teacher. Certainly, her research in this area was pioneering and influential: Her 1992 book from MIT Press based on her Ph.D. has over 120 citations, no mean feat given that most Ph.D.s are read by at most four people. Alison received sustained funding from the Research Councils, the European Union, and the Scottish Office. Most recently she worked on how to make personalized explanation systems for helping explain medical diagnoses from experts to patients. Her focus on cancer diagnosis drew both on her personal experience and her familiar desire to do things that would help other people.</p><p>Alison's excellence in teaching, from which so many students benefited, is also recognized internationally. Her highly cited book on Artificial Intelligence has been in print continuously since 1997, and has been translated into German and Hungarian. Her more recent book, with Rick Dewar, on Internet Technology and eCommerce shows both her versatility and engagement with our dynamically changing discipline. Students clearly like her books. One anonymous Amazon reviewer wrote: "I missed most of the lectures but thanks to this short and sweet book I passed my first year introduction to AI course. If you are a slack student taking an AI course—buy this book."</p><p>Alison was our colleague for 14 years. She was a pillar of our Department, con­tributing strongly to all our academic development activities. In particular, she ran our</p><p>* This is an edited version of the eulogy delivered at Alison's funeral by Greg, with contributions from her husband Richard Tobin, and her parents David and Kay Cawsey.</p><page local="2" global="476"/><p>MSc projects and latterly our MSc program, both of which needed all of her customary tact, patience, and persuasion. For five years Alison kindly maintained the illusion that I managed her. Contrariwise, I depended on her strongly, as a shoulder to cry on, someone to moan at and to gossip with, someone with whom to share hard decisions. I'll remember a kind and gentle person, a fine colleague and an engaging friend.</p><p>We offer our warmest sympathy and solace to Alison's family: Her beloved husband Richard, children Sophie and Andrew, parents Kay and David, brothers Chris and Richard, to Richard's family, and to her close friends.</p></section><section title="Janet Hitzeman"><p>Massimo Poesio</p><p>University of Trento, Italy</p><p>David Day</p><p>MITRE Corporation, USA</p><p>Inderjeet Mani</p><p>Janet Hitzeman, best known for her work on temporal expressions, corpora, discourse, and information extraction, passed away on 18 May, aged 46, after a long struggle with illness. She was one of the funniest and most generous members of our community, and will be greatly missed.</p><p>Janet Marie Hitzeman was born in San Mateo, CA, on 9August, 1962. After ma­joring in Math and Computer Science at UC Davis in 1984, she went on to get an MSc in Computer Science at USC, where she got interested in NLP particularly through the influence of Yigal Arens. After graduating she joined the AI group at Hughes Aircraft in Los Angeles, working on NLP, and spent a few fun years in LA that provided the material for many of her best-known stories (including "The Superglue Incident"). She then took the plunge and moved East, with the aim of getting a Ph.D. in Linguistics. In 1988 she moved to Rochester, NY, as part of the first group of Ph.D. students of the recently reformed Ph.D. program, led by Greg Carlson, who became her advisor.</p><p>It was a good time to be in Rochester. Faculty and students from the Computer Science, Linguistics, and Psychology departments formed a closely knit Cognitive Sci­ence community in which the intellectual exchange between areas was encouraged. Janet followed classes and graduate seminars with James Allen and Mike Tanenhaus, and was TA for Len Schubert, just like we students in CS followed graduate seminars with Sandro Zucchi, Peter Lasersohn, and Tom Bever. Janet's classmates and friends included Derek Gross, Graham Katz, Julie Sedivy, Beverly Spejevsky, Becca Webb, and Roberto Zamparelli in Linguistics; Peter Heeman, Marc Light, David Traum, and one of us (Massimo Poesio) among the NLP students in CS, as well as students of Dana Ballard such as Polly Pook. Social life and intellectual life mixed in events like pasta at Tom Bever's after the seminar. During this period she also began her collaboration and friendship with Greg Whittemore, then at Kodak, that was to continue later in Edinburgh.</p><page local="3" global="477"/><p>In a very short time Janet identified tense and aspect, and temporal expressions in general, as her area of interest—an area that would remain the main focus of her research throughout her career. She went through her Ph.D. career very quickly, the first among her Linguistics colleagues to pass quals, the first to publish a paper at a major linguistics conference (Hitzeman 1991), and the first to graduate, in 1993, with a dissertation on "Temporal Adverbials and the Syntax-Semantics Interface" in which she proposed that the alternative interpretations of temporal adverbials like <i>for </i>could actually be derived from information structure without the need to stipulate an ambiguity (Hitzeman 1997).</p><p>When she finished her Ph.D., Marc Moens, then head of the Language Technology Group in Edinburgh, offered her her first job. Here is Marc remembering how this came about:</p><p>I... interviewed Janet for the LTG job in a car in Rochester, driving to Len Schubert's house for an ACL Program Committee party. It was a cold January evening. I realized pretty soon that it would be great to have her join the LTG. At the end of the interview, she parked the car next to what turned out to be a ditch filled with snow. As I got out of the car, I sank to my knees in the snow and couldn't move. Janet looked at me and said, "And I thought I was doing so well with the other interview questions."</p><p>The snow didn't change Marc's mind, and Janet spent six years in Edinburgh, continu­ing her work on temporal expressions but also starting research in new areas including discourse, natural language generation, and prosody. Her work on temporal expression interpretation led to her most cited article (Hitzeman, Moens, and Grover 1995), also included in <i>The Language of Time, </i>the recent collection of classics in temporal expression interpretation edited by Mani et al. (Mani, Pustejovsky, and Gaizauskas 2005). Her work on the ILEX NLG project (Hitzeman, Mellish, and Oberlander 1997) resulted instead in her getting interested in discourse, in particular the effect of local and global salience on the interpretation of anaphoric expressions (Hitzeman and Poesio 1998; Poesio et al. 2004). This research was grounded in empirical data resulting from an annotation effort that Janet started and that was to lead eventually to the creation of the GNOME corpus. She also became interested in the relation between discourse structure and prosody, getting involved in one of the first projects attempting to use discourse information to improve speech synthesis (Hitzeman et al. 1998). Finally, she became a key element of the social life at the Human Communication Research Centre, which had at its heart the Friday pub night at Maxie's that she instituted and drove forward with Matt Crocker and Shona Douglas. Here is Matt reminiscing about that time:</p><p>I remember those Maxie's evenings very fondly ... indeed, one of the most positive associations I have with my time in Edinburgh. Very often those evenings began with Janet, Shona [Douglas], and I (the hard-core Maxie's team) sharing a bottle of Montepulciano, as the rest of the crowd slowly trickled in . . . Great times.</p><p>In 2000 Janet moved back to the U.S. to work at MITRE Bedford, where she continued her research on corpus annotation, discourse, and temporal expressions but moved the primary application focus to information extraction.</p><p>At MITRE, Janet was a resident expert on the design and development of annotation schemes, and was happiest when up close to the linguistic data, especially non-garden-variety corpora such as financial filings, disease-tracking e-mails, chat room logs, blogs, and so forth. In her early years at MITRE Janet contributed to work on developing event extraction systems, working largely with rule-based mechanisms that exploited her understanding and interests in how language could express information of relevance to various tasks.<page local="4" global="478"/> A hallmark of her work was the close interaction of annotated corpus development and the design of heuristics grounded in that data. She contributed to the early versions of standards like TimeML, and was a key figure behind the development of SpatialML.</p><p>Janet was a key contributor in the development of cutting-edge natural language processing applications in such diverse areas as global disease outbreak monitoring, topic tracking in chat, and fraud detection from financial data. Among the best known papers resulting from Janet's work on information extraction while at MITRE are Mani et al. (2008) on SpatialML and Wellner et al. (2007) on de-identification. At the time of her death, Janet was in her second year as principal investigator of a project developing a prototype to monitor World Health Organization disease outbreak announcements. This system was able to exploit the unique aspects of this "micro-genre" to achieve very high levels of accuracy in automatically recognizing and mapping disease outbreak information with Google Earth (Hitzeman 2008). Janet also got involved in research on using dialogue for collaborative learning, in cooperation with Brad Goodman and colleagues (Goodman et al. 2005). Last but not least, she developed large portions of hand-annotated corpora still used to pursue research of various kinds: In addition to the SpatialML data, she was the key annotator for the cross-document coreference annota­tion corpus developed for the 2007 Johns Hopkins Summer Workshop on coreference resolution (Day et al. 2008).</p><p>Janet gained the respect of a wide variety of staff in the company. She was sought after not only for her expertise and diligence but as one of the most considerate and pleasant of colleagues to work with, always at hand with a wry comment or an astute linguistic observation. She managed to continue contributing to the area of the linguis­tics of temporal expressions, even as her MITRE work diverged into many different areas.</p><p>Janet was always at the center of social activities at conferences like ACL and LREC, and at summer schools like ESSLLI, and was popular with everybody in the community. This was because she was incredibly warm and always had a charming interest in what people were up to, in research and in personal life. An additional reason for her popularity was that she was a great storyteller and a great listener. Her e-mails were always eagerly received as they would always contain consistently funny accounts of her encounters with Superglue, dogs, or camels. In a word, she was a great source of joy for all of us.</p></section><references><p>Akiba, Tomoyoshi and Hozumi Tanaka. 1994. A Bayesian approach for user modeling in dialogue systems. In <i>Proceedings of the 15th International Conference on Computational Linguistics (COLING '94), </i>pages 1212-1218, Kyoto.</p><p>Baldwin, Timothy and Hozumi Tanaka. 2000. The effects of word order and segmentation on translation retrieval performance. In <i>Proceedings of the 18th International Conference on Computational Linguistics (COLING 2000), </i>pages 35-41, Saarbrücken.</p><p>Bilac, Slaven, Timothy Baldwin, and Hozumi Tanaka. 2002. Bringing the dictionary to the user: The FOKS system. In <i>Proceedings of the 19th International Conference on Computational Linguistics (COLING 2002), </i>pages 85-91, Taipei.</p><p>Fujii, Atsushi, Kentaro Inui, Takenobu Tokunaga, and Hozumi Tanaka. 1998. Selective sampling for example-based word sense disambiguation. <i>Computational</i> <i>Linguistics, </i>24(4):573-597.</p><p>Funakoshi, Kotaro, Takenobu Tokunaga, and Hozumi Tanaka. 2002. Processing Japanese self-correction in speech dialog systems. In <i>Proceedings of the 19th International Conference on Computational Linguistics</i> <i>(COLING 2002), </i>pages 287-293, Taipei.</p><p>Inui, Kentaro, Virach Sornlertlamvanich, Hozumi Tanaka, and Takenobu Tokunaga. 1997. A new formalization of probabilistic GLR parsing. In <i>Proceedings ofthe 5th International Workshop on Parsing Technology (IWPT1997), </i>pages 123-134, Boston, MA.</p><p>Itou, Katunobu, Satoru Hayamizu, and Hozumi Tanaka. 1992. Continuous speech recognition by context-dependent phonetic HMM and an efficient algorithm for finding N-best sentence hypotheses. In <i>Proceedings of the 1992 IEEE International Conference on Acoustics, Speech and Signal</i></p><doubt alpha="61.5" length="39" tooSmall="False" monospace="0.0">Processing (ICASSP-92),pages 21-24, San</doubt><p>Francisco, CA.</p><p>Iwayama, Makoto, Takenobu Tokunaga, and Hozumi Tanaka. 1990. A method of calculating the measure of salience in understanding metaphors. In <i>Proceedings of the Eighth National Conference on Artificial Intelligence (AAAI'90), </i>pages 298-303, Boston, MA.</p><p>Mandala, Rila, Takenobu Tokunaga, and Hozumi Tanaka. 2000. Query expansion using heterogeneous thesauri. <i>Information <u>Processing and Management</u>, </i>36(3):361-378.</p><p>Moto-oka, Tohru. 1983. <i>Fifth Generation Computer Systems. </i>North-Holland</p><p>Publishing Company, Amsterdam, Netherlands.</p><p>Shinyama, Yusuke, Takenobu Tokunaga, and Hozumi Tanaka. 2000. "Kairai"—software robots understanding natural language. In <i>Proceedings ofthe Third International Workshop on Human-Computer Conversation, </i>pages 158-163, Bellagio.</p><p>Shirai, Kiyoaki, Masahiro Ueki, Taiichi Hashimoto, Takenobu Tokunaga, and Hozumi Tanaka. 2000. Shizen gengo kaiseki no tame no MSLR paza tsurukitto [An MSLR toolkit for natural language analysis]. <i>Journal of Natural Language Processing, </i>7(5):93-112. [In Japanese.]</p><p>Suzuki, Taizan, Takenobu Tokunaga, and Hozumi Tanaka. 1999. A case-based approach to the generation of musical expression. In <i>Proceedings of the 16th International Joint Conference on Artificial Intelligence (IJCAI'99), </i>pages 642-648, Stockholm.</p><p>Tanaka, Hozumi. 1981. <i>Keisanki ni-yoru Shizen Gengo no Imi Shori ni-kansuru Kenkyu [A Study on Automatic Processing ofNatural Language Semantics]. </i>Ph.D. thesis, Tokyo Institute of Technology.</p><p>Tanaka, Hozumi. 1989. <i>Shizen Gengo Kaiseki no Kiso [The Fundamentals ofNatural Language Analysis]. </i>Sango-Tosho, Tokyo.</p><p>Tanaka, Hozumi, editor. 1999a. <i>Shizen GengoShori — Kisoto Oyo — [Natural Language Processing — Foundations and Applications </i><i>—]</i>. Information Processing Society of Japan, Tokyo.</p><p>Tanaka, Hozumi. 1999b. What should we do next for MT system development? In <i>Proceedings ofthe Machine Translation Summit VII, </i>pages 3-8, Singapore.</p><p>Tanaka, Hozumi, Hitoshi Isahara, and Hideki Yasuhara. 1983. An English-Japanese machine translation system using active dictionary. <i><u>New Generation Computing,</u> </i>1(2):179-185.</p><p>Tanaka, Hozumi, Hui Li, and Takenobu Tokunaga. 1995. A new technology of GLR parsing and its applications to speech and natural language processing. In <i>Proceedings ofthe Symposium on Natural Language Processing (SNLP'95), </i>Bangkok.</p><p>Tanaka, Hozumi, Takenobu Tokunaga, and Michio Aizawa. 1993. Integration of morphological and syntactic analysis based on LR parsing algorithm. In <i>Proceedings ofthe International Workshop on Parsing Technologies 1993 (IWPT'93), </i>pages 101-109, Tilburg, Netherlands, and Durbuy, Belgium.</p><page local="8" global="482"/></references></body></article>