--- _id: '11860' abstract: - lang: eng text: Many daily activities present information in the form of a stream of text, and often people can benefit from additional information on the topic discussed. TV broadcast news can be treated as one such stream of text; in this paper we discuss finding news articles on the web that are relevant to news currently being broadcast.We evaluated a variety of algorithms for this problem, looking at the impact of inverse document frequency, stemming, compounds, history, and query length on the relevance and coverage of news articles returned in real time during a broadcast. We also evaluated several postprocessing techniques for improving the precision, including reranking using additional terms, reranking by document similarity, and filtering on document similarity. For the best algorithm, 84%-91% of the articles found were relevant, with at least 64% of the articles being on the exact topic of the broadcast. In addition, a relevant article was found for at least 70% of the topics. article_number: 1-10 article_processing_charge: No author: - first_name: Monika H full_name: Henzinger, Monika H id: 540c9bbd-f2de-11ec-812d-d04a5be85630 last_name: Henzinger orcid: 0000-0002-5008-6530 - first_name: Bay-Wei full_name: Chang, Bay-Wei last_name: Chang - first_name: Brian full_name: Milch, Brian last_name: Milch - first_name: Sergey full_name: Brin, Sergey last_name: Brin citation: ama: 'Henzinger MH, Chang B-W, Milch B, Brin S. Query-free news search. In: Proceedings of the 12th International Conference on World Wide Web. Association for Computing Machinery; 2003. doi:10.1145/775152.775154' apa: 'Henzinger, M. H., Chang, B.-W., Milch, B., & Brin, S. (2003). Query-free news search. In Proceedings of the 12th international conference on World Wide Web. Budapest, Hungary: Association for Computing Machinery. https://doi.org/10.1145/775152.775154' chicago: Henzinger, Monika H, Bay-Wei Chang, Brian Milch, and Sergey Brin. “Query-Free News Search.” In Proceedings of the 12th International Conference on World Wide Web. Association for Computing Machinery, 2003. https://doi.org/10.1145/775152.775154. ieee: M. H. Henzinger, B.-W. Chang, B. Milch, and S. Brin, “Query-free news search,” in Proceedings of the 12th international conference on World Wide Web, Budapest, Hungary, 2003. ista: 'Henzinger MH, Chang B-W, Milch B, Brin S. 2003. Query-free news search. Proceedings of the 12th international conference on World Wide Web. WWW: International Conference on World Wide Web, 1–10.' mla: Henzinger, Monika H., et al. “Query-Free News Search.” Proceedings of the 12th International Conference on World Wide Web, 1–10, Association for Computing Machinery, 2003, doi:10.1145/775152.775154. short: M.H. Henzinger, B.-W. Chang, B. Milch, S. Brin, in:, Proceedings of the 12th International Conference on World Wide Web, Association for Computing Machinery, 2003. conference: end_date: 2003-05-24 location: Budapest, Hungary name: 'WWW: International Conference on World Wide Web' start_date: 2003-05-20 date_created: 2022-08-16T08:55:05Z date_published: 2003-05-01T00:00:00Z date_updated: 2023-02-21T16:32:40Z day: '01' doi: 10.1145/775152.775154 extern: '1' language: - iso: eng month: '05' oa_version: None publication: Proceedings of the 12th international conference on World Wide Web publication_identifier: isbn: - 978-158113680-7 publication_status: published publisher: Association for Computing Machinery quality_controlled: '1' related_material: record: - id: '11904' relation: later_version status: public scopus_import: '1' status: public title: Query-free news search type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2003' ... --- _id: '11909' abstract: - lang: eng text: This article presents a high-level discussion of some problems that are unique to web search engines. The goal is to raise awareness and stimulate research in these areas. article_processing_charge: No author: - first_name: Monika H full_name: Henzinger, Monika H id: 540c9bbd-f2de-11ec-812d-d04a5be85630 last_name: Henzinger orcid: 0000-0002-5008-6530 - first_name: Rajeev full_name: Motwani, Rajeev last_name: Motwani - first_name: Craig full_name: Silverstein, Craig last_name: Silverstein citation: ama: 'Henzinger MH, Motwani R, Silverstein C. Challenges in web search engines. In: 18th International Joint Conference on Artificial Intelligence. Association for Computing Machinery; 2003:1573-1579.' apa: 'Henzinger, M. H., Motwani, R., & Silverstein, C. (2003). Challenges in web search engines. In 18th International Joint Conference on Artificial Intelligence (pp. 1573–1579). Acapulco, Mexico: Association for Computing Machinery.' chicago: Henzinger, Monika H, Rajeev Motwani, and Craig Silverstein. “Challenges in Web Search Engines.” In 18th International Joint Conference on Artificial Intelligence, 1573–79. Association for Computing Machinery, 2003. ieee: M. H. Henzinger, R. Motwani, and C. Silverstein, “Challenges in web search engines,” in 18th International Joint Conference on Artificial Intelligence, Acapulco, Mexico, 2003, pp. 1573–1579. ista: 'Henzinger MH, Motwani R, Silverstein C. 2003. Challenges in web search engines. 18th International Joint Conference on Artificial Intelligence. IJCAI: International Joint Conference on Artificial Intelligence, 1573–1579.' mla: Henzinger, Monika H., et al. “Challenges in Web Search Engines.” 18th International Joint Conference on Artificial Intelligence, Association for Computing Machinery, 2003, pp. 1573–79. short: M.H. Henzinger, R. Motwani, C. Silverstein, in:, 18th International Joint Conference on Artificial Intelligence, Association for Computing Machinery, 2003, pp. 1573–1579. conference: end_date: 2003-08-15 location: Acapulco, Mexico name: 'IJCAI: International Joint Conference on Artificial Intelligence' start_date: 2003-08-09 date_created: 2022-08-18T06:40:02Z date_published: 2003-08-01T00:00:00Z date_updated: 2023-02-09T12:05:25Z day: '01' extern: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ijcai.org/Proceedings/03/Papers/278.pdf month: '08' oa: 1 oa_version: Published Version page: 1573-1579 publication: 18th International Joint Conference on Artificial Intelligence publication_identifier: issn: - 1045-0823 publication_status: published publisher: Association for Computing Machinery quality_controlled: '1' scopus_import: '1' status: public title: Challenges in web search engines type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2003' ... --- _id: '1457' abstract: - lang: eng text: 'Among the major mathematical approaches to mirror symmetry are those of Batyrev-Borisov and Stromdnger-Yau-Zaslow (SYZ). The first is explicit and amenable to computation but is not clearly related to the physical motivation; the second is the opposite. Furthermore, it is far from obvious that mirror partners in one sense will also be mirror partners in the other. This paper concerns a class of examples that can be shown to satisfy the requirements of SYZ, but whose Hodge numbers are also equal. This provides significant evidence in support of SYZ. Moreover, the examples are of great interest in their own right: they are spaces of flat SLr-connections on a smooth curve. The mirror is the corresponding space for the Langlands dual group PGLr. These examples therefore throw a bridge from mirror symmetry to the duality theory of Lie groups and, more broadly, to the geometric Langlands program.' author: - first_name: Tamas full_name: Tamas Hausel id: 4A0666D8-F248-11E8-B48F-1D18A9856A87 last_name: Hausel - first_name: Michael full_name: Thaddeus, Michael last_name: Thaddeus citation: ama: Hausel T, Thaddeus M. Mirror symmetry, langlands duality, and the Hitchin system. Inventiones Mathematicae. 2003;153(1):197-229. doi:10.1007/s00222-003-0286-7 apa: Hausel, T., & Thaddeus, M. (2003). Mirror symmetry, langlands duality, and the Hitchin system. Inventiones Mathematicae. Springer. https://doi.org/10.1007/s00222-003-0286-7 chicago: Hausel, Tamás, and Michael Thaddeus. “Mirror Symmetry, Langlands Duality, and the Hitchin System.” Inventiones Mathematicae. Springer, 2003. https://doi.org/10.1007/s00222-003-0286-7. ieee: T. Hausel and M. Thaddeus, “Mirror symmetry, langlands duality, and the Hitchin system,” Inventiones Mathematicae, vol. 153, no. 1. Springer, pp. 197–229, 2003. ista: Hausel T, Thaddeus M. 2003. Mirror symmetry, langlands duality, and the Hitchin system. Inventiones Mathematicae. 153(1), 197–229. mla: Hausel, Tamás, and Michael Thaddeus. “Mirror Symmetry, Langlands Duality, and the Hitchin System.” Inventiones Mathematicae, vol. 153, no. 1, Springer, 2003, pp. 197–229, doi:10.1007/s00222-003-0286-7. short: T. Hausel, M. Thaddeus, Inventiones Mathematicae 153 (2003) 197–229. date_created: 2018-12-11T11:52:08Z date_published: 2003-07-01T00:00:00Z date_updated: 2021-01-12T06:50:52Z day: '01' doi: 10.1007/s00222-003-0286-7 extern: 1 intvolume: ' 153' issue: '1' main_file_link: - open_access: '1' url: http://arxiv.org/abs/math/0205236 month: '07' oa: 1 page: 197 - 229 publication: Inventiones Mathematicae publication_status: published publisher: Springer publist_id: '5738' quality_controlled: 0 status: public title: Mirror symmetry, langlands duality, and the Hitchin system type: journal_article volume: 153 year: '2003' ... --- _id: '1458' abstract: - lang: eng text: The moduli space of stable bundles of rank $2$ and degree $1$ on a Riemann surface has rational cohomology generated by the so-called universal classes. The work of Baranovsky, King-Newstead, Siebert-Tian and Zagier provided a complete set of relations between these classes, expressed in terms of a recursion in the genus. This paper accomplishes the same thing for the noncompact moduli spaces of Higgs bundles, in the sense of Hitchin and Simpson. There are many more independent relations than for stable bundles, but in a sense the answer is simpler, since the formulas are completely explicit, not recursive. The results of Kirwan on equivariant cohomology for holomorphic circle actions are of key importance. acknowledgement: The first author was supported by NSF grant DMS-97-29992. The second author was supported by NSF grant DMS-98-08529. author: - first_name: Tamas full_name: Tamas Hausel id: 4A0666D8-F248-11E8-B48F-1D18A9856A87 last_name: Hausel - first_name: Michael full_name: Thaddeus, Michael last_name: Thaddeus citation: ama: Hausel T, Thaddeus M. Relations in the cohomology ring of the moduli space of rank 2 Higgs bundles. Journal of the American Mathematical Society. 2003;16(2):303-329. doi:10.1090/S0894-0347-02-00417-4 apa: Hausel, T., & Thaddeus, M. (2003). Relations in the cohomology ring of the moduli space of rank 2 Higgs bundles. Journal of the American Mathematical Society. American Mathematical Society. https://doi.org/10.1090/S0894-0347-02-00417-4 chicago: Hausel, Tamás, and Michael Thaddeus. “Relations in the Cohomology Ring of the Moduli Space of Rank 2 Higgs Bundles.” Journal of the American Mathematical Society. American Mathematical Society, 2003. https://doi.org/10.1090/S0894-0347-02-00417-4. ieee: T. Hausel and M. Thaddeus, “Relations in the cohomology ring of the moduli space of rank 2 Higgs bundles,” Journal of the American Mathematical Society, vol. 16, no. 2. American Mathematical Society, pp. 303–329, 2003. ista: Hausel T, Thaddeus M. 2003. Relations in the cohomology ring of the moduli space of rank 2 Higgs bundles. Journal of the American Mathematical Society. 16(2), 303–329. mla: Hausel, Tamás, and Michael Thaddeus. “Relations in the Cohomology Ring of the Moduli Space of Rank 2 Higgs Bundles.” Journal of the American Mathematical Society, vol. 16, no. 2, American Mathematical Society, 2003, pp. 303–29, doi:10.1090/S0894-0347-02-00417-4. short: T. Hausel, M. Thaddeus, Journal of the American Mathematical Society 16 (2003) 303–329. date_created: 2018-12-11T11:52:08Z date_published: 2003-04-01T00:00:00Z date_updated: 2021-01-12T06:50:53Z day: '01' doi: 10.1090/S0894-0347-02-00417-4 extern: 1 intvolume: ' 16' issue: '2' main_file_link: - open_access: '1' url: http://arxiv.org/abs/math/0003094 month: '04' oa: 1 page: 303 - 329 publication: Journal of the American Mathematical Society publication_status: published publisher: American Mathematical Society publist_id: '5739' quality_controlled: 0 status: public title: Relations in the cohomology ring of the moduli space of rank 2 Higgs bundles type: journal_article volume: 16 year: '2003' ... --- _id: '1459' abstract: - lang: eng text: 'In this paper we explicitly calculate the analogue of the ''t Hooft SU (2) Yang-Mills instantons on Gibbons-Hawking multi-centered gravitational instantons, which come in two parallel families: the multi-Eguchi-Hanson, or Ak ALE gravitational instantons and the multi-Taub-NUT spaces, or Ak ALF gravitational instantons. We calculate their energy and find the reducible ones. Following Kronheimer we also exploit the U(1) invariance of our solutions and study the corresponding explicit singular SU (2) magnetic monopole solutions of the Bogomolny equations on flat ℝ3.' acknowledgement: We would like to acknowledge the financial support by Prof. P. Major (R ́ enyi Institute, Hungary) from his OTKA grant No. T26176 and of the Miller Institute for Basic Research in Science at UC Berkeley. author: - first_name: Gábor full_name: Etesi, Gábor last_name: Etesi - first_name: Tamas full_name: Tamas Hausel id: 4A0666D8-F248-11E8-B48F-1D18A9856A87 last_name: Hausel citation: ama: Etesi G, Hausel T. On Yang-Mills instantons over multi-centered gravitational instantons. Communications in Mathematical Physics. 2003;235(2):275-288. doi:10.1007/s00220-003-0806-8 apa: Etesi, G., & Hausel, T. (2003). On Yang-Mills instantons over multi-centered gravitational instantons. Communications in Mathematical Physics. Springer. https://doi.org/10.1007/s00220-003-0806-8 chicago: Etesi, Gábor, and Tamás Hausel. “On Yang-Mills Instantons over Multi-Centered Gravitational Instantons.” Communications in Mathematical Physics. Springer, 2003. https://doi.org/10.1007/s00220-003-0806-8. ieee: G. Etesi and T. Hausel, “On Yang-Mills instantons over multi-centered gravitational instantons,” Communications in Mathematical Physics, vol. 235, no. 2. Springer, pp. 275–288, 2003. ista: Etesi G, Hausel T. 2003. On Yang-Mills instantons over multi-centered gravitational instantons. Communications in Mathematical Physics. 235(2), 275–288. mla: Etesi, Gábor, and Tamás Hausel. “On Yang-Mills Instantons over Multi-Centered Gravitational Instantons.” Communications in Mathematical Physics, vol. 235, no. 2, Springer, 2003, pp. 275–88, doi:10.1007/s00220-003-0806-8. short: G. Etesi, T. Hausel, Communications in Mathematical Physics 235 (2003) 275–288. date_created: 2018-12-11T11:52:09Z date_published: 2003-04-01T00:00:00Z date_updated: 2021-01-12T06:50:53Z day: '01' doi: 10.1007/s00220-003-0806-8 extern: 1 intvolume: ' 235' issue: '2' main_file_link: - open_access: '1' url: http://arxiv.org/abs/hep-th/0207196 month: '04' oa: 1 page: 275 - 288 publication: Communications in Mathematical Physics publication_status: published publisher: Springer publist_id: '5740' quality_controlled: 0 status: public title: On Yang-Mills instantons over multi-centered gravitational instantons type: journal_article volume: 235 year: '2003' ...