日本データベース学会の皆様 京都大学のアダムヤトフトです。NTCIR-12 Temporalia-2タスクのご案内です。 ご興味の方は参加をご検討下さい。 ################################################### CALL FOR TASK PARTICIPATION NTCIR-12 Temporal Information Access (Temporalia-2) Task Website http://ntcirtemporalia.github.io/ Facebook https://www.facebook.com/ntcirtemporalia Twitter https://twitter.com/ntcirtemporalia Registration: http://ntcir.nii.ac.jp/NTCIR12Regist/ Important Dates: Jun 30, 2015: Task registration due Jul 1, 2015: Final task guideline, collection and dry run test data released Sep 1, 2015: Dry run submissions due Oct 1, 2015: Dry run evaluation results released Nov 1, 2015: Formal run testing data released Dec 1, 2015: Formal run submissions due Feb 1, 2016: Formal run evaluation results and early task overview paper released Mar 1, 2016: Participant draft papers due May 1, 2016: Camera ready papers due Jun 7-10, 2016: NTCIR-12 conference @ NII, Tokyo, Japan ################################################### === OVERVIEW === The objective of NTCIR Temporal Information Access (Temporalia) Task is to foster research in temporal information access. Given the fact that time plays a crucial role in estimating information relevance and validity we believe that successful search engines must consider temporal aspects of information in greater detail. At NTCIR-11, we built a test collections for temporal query intent classification and temporal adhoc retrieval. A total of 35 runs were submitted by 9 teams in Asia, Europe, and North America. NTCIR-12 will expand this achievement by considering the technological challenges such as query ambiguity detection and search results diversification in the context of temporal information retrieval. We also expand our language scope to include Chinese dataset in our collection. === TASKS === Temporalia-2 at NTCIR-12 offer two subtasks in English and Chinese to address temporal information access technologies as follows. Interested researchers and research groups can participate in either or both of the subtasks in any combination of languages. - Temporal Intent Disambiguation (TID) Subtask TID subtask asks participants to estimate a distribution of four temporal intent classes (Atemporal, Past, Recent, or Future) for a given query. This is an upgraded task from Temporal Query Intent Classification (TQIC) subtask at NTCIR-11, where participants were only asked to estimate the best (single) temporal intent category for a given query. Like the TQIC subtask, participants will receive a set of query strings and submission date, and develop a system that estimates a distribution among four temporal intent classes. TID will employ test queries more likely to be temporally ambiguous than those used in TQIC. Participants will be allowed to use any external resources to complete the TID subtask as long as the detail of external resource usage is reported. This subtask does not necessarily require to index our document collection. - Temporally Diversified Retrieval (TDR) Subtask TDR subtask will require participants to retrieve a set of documents relevant to each of four temporal intent classes for a given topic description. Participants will receive a set of topic descriptions, query timestamp, and ideal temporal class size information (e.g., 4 docs for past, 4 docs for recency, 2 docs for future). Participants are asked to develop a system that can produce temporally diversified search results using these input data. This is an upgraded task from Temporal Information Retrieval (TIR) subtask at NTCIR-11 where participants were asked to retrieve documents for separate temporal subtopics. TDR is more challenging since the system needs to optimise ranking of documents for up to four different temporal classes for a given topic. We further plan to add a constraint to prohibit a document’s duplicate entry to mulitple temporal classes in the output. This subtask requires to index the document collection. Please note: Task participants must submit a paper to the NTCIR-12 Conference (unrefereed) and at least one member of each participating group must attend the conference at NII, Tokyo in June 2016, to present their work. Please visit Temporalia website for more information about the task: http://ntcirtemporalia.github.io/ === ORGANIZERS === Hideo Joho (University of Tsukuba, Japan) Adam Jatowt (Kyoto University, Japan) Roi Blanco (Yahoo Labs, Barcelona, Spain) Haitao Yu (University of Tsukuba, Japan) Shuhei Yamamoto (University of Tsukuba, Japan) === CONTACT === tc4fia at googlegroups dot com