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CICLing “Event”: T he Chinese-English Stat-XFER System – A Look Under the Hood

CICLing “Event”: T he Chinese-English Stat-XFER System – A Look Under the Hood. Alon Lavie Language Technologies Institute Carnegie Mellon University. Chinese-English System. Developed over past year under DARPA/GALE funding (within IBM-led “Rosetta” team)

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CICLing “Event”: T he Chinese-English Stat-XFER System – A Look Under the Hood

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  1. CICLing “Event”:The Chinese-English Stat-XFER System – A Look Under the Hood AlonLavie Language Technologies Institute Carnegie Mellon University

  2. Chinese-English System • Developed over past year under DARPA/GALE funding (within IBM-led “Rosetta” team) • Participated in recent NIST MT-08 Evaluation • Large-scale broad-coverage system • Integrates large manual resources with automatically extracted resources • Current performance-level is still inferior to state-of-the-art phrase-based systems CICLing-2008

  3. Chinese-English System • Lexical Resources: • Manual Lexicons (base forms): • LDC, ADSO, Wiki • Total number of entries: 1.07 million • Automatically acquired from parallel data: • Approx 5 million sentences LDC/GALE data • Filtered down to phrases < 10 words in length • Full formed • Total number of entries: 2.67 million CICLing-2008

  4. Chinese-English System • Transfer Rules: • 61 manually developed transfer rules • High-accuracy rules extracted from manually word-aligned parallel data CICLing-2008

  5. Translation Example • SrcSent 3 澳洲是与北韩有邦交的少数国家之一。 • Gloss: Australia is with north korea have diplomatic relations DE few country world • Reference: Australia is one of the few countries that have diplomatic relations with North Korea. • Translation: Australia is one of the few countries that has diplomatic relations with north korea . • Overall: -5.77439, Prob: -2.58631, Rules: -0.66874, TransSGT: -2.58646, TransTGS: -1.52858, Frag: -0.0413927, Length: -0.127525, Words: 11,15 • ( 0 10 "Australia is one of the few countries that has diplomatic relations with north korea" -5.66505 "澳洲 是 与 北韩 有 邦交 的 少数国家之一 " "(S1,1124731 (S,1157857 (NP,2 (NB,1 (LDC_N,1267 'Australia') ) ) (VP,1046077 (MISC_V,1 'is') (NP,1077875 (LITERAL 'one') (LITERAL 'of') (NP,1045537 (NP,1017929 (NP,1 (LITERAL 'the') (NUMNB,2 (LDC_NUM,420 'few') (NB,1 (WIKI_N,62230 'countries') ) ) ) (LITERAL 'that') (VP,1021811 (LITERAL 'has') (FBIS_NP,11916 'diplomatic relations') ) ) (FBIS_PP,84791 'with north korea') ) ) ) ) ) ") • ( 10 11 "." -11.9549 "。" "(MISC_PUNC,20 '.')") CICLing-2008

  6. Example: Syntactic Lexical Phrases • (LDC_N,1267 'Australia') • (WIKI_N,62230 'countries') • (FBIS_NP,11916 'diplomatic relations') • (FBIS_PP,84791 'with north korea') CICLing-2008

  7. Example: XFER Rules ;;SL::(2,4) 对 台 贸易 ;;TL::(3,5) trade to taiwan ;;Score::22 {NP,1045537} NP::NP [PP NP ] -> [NP PP ] ((*score* 0.916666666666667) (X2::Y1) (X1::Y2)) ;;SL::(2,7) 直接提到 伟 哥 的 广告 ;;TL::(1,7) commercials that directly mention the name viagra ;;Score::5 {NP,1017929} NP::NP [VP "的" NP ] -> [NP "that" VP ] ((*score* 0.111111111111111) (X3::Y1) (X1::Y3)) ;;SL::(4,14) 有 一 至 多 个 高 新 技术项目 或 产品 ;;TL::(3,14) has one or more new , high level technology projects or products ;;Score::4 {VP,1021811} VP::VP ["有" NP ] -> ["has" NP ] ((*score* 0.1) (X2::Y2)) CICLing-2008

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