Báo cáo khoa học: "Extracting Noun Phrases from Large-Scale Texts: A Hybrid Approach and Its Automatic Evaluation" pot

... Extracting Noun Phrases from Large-Scale Texts: A Hybrid Approach and Its Automatic Evaluation Kuang-hua Chen and Hsin-Hsi Chen Department of Computer Science and Information Engineering National ... Corpus is a modified and reduced version of Brown Corpus). 238 Apparently, a noun phrase may be both a maximal noun phrase and a minimal noun phrase. Ordinary noun phrases are noun phrases with ... which are also the minimal noun phrases. On average, a maximal noun phrase subsumes 1.61 ordinary noun phrases and 1.09 minimal noun phrases. Table 7. The Number of Noun Phrases in Corpus A...

Tài liệu Báo cáo khoa học: "Extracting Comparative Sentences from Korean Text Documents Using Comparative Lexical Patterns and Machine Learning Techniques" doc

... and comparative, JJS: adjective and superla-tive, RBR: adverb and comparative, and RBS: adverb and superlative 153validation show the overall precision of 88.68% and the overall recall of ... Tags for compar-ative and superlative in English1, whereas, unfor-tunately, the POS tagger of Korean does not pro-vide any comparative and superlative tags be-cause the analysis of Korean ... convincing ways of evaluation (Jin-dal and Liu, 2006). A comparative sentence for-mulates an ordering relation between two entities and that relation is very useful for many applica-tion areas. One...

Báo cáo khoa học: "Extracting Hypernym Pairs from the Web" potx

... relations: A en (and) B.Additionally, we have applied a corpus-indepen-dent morphological approach which takes advantageof the fact that in Dutch, compound words oftenhave the head in the ﬁnal ... 1.98morphological approach 0.54 0.33 0.41 1.19Table 1: Performances measured in our earlier work(Tjong Kim Sang and Hofmann, 2007) with a mor-phological approach and patterns applied to a textcorpus ... results of the approaches can be found in Ta-ble 1. The corpus approaches achieve reasonableprecision rates. The recall scores are low becausewe attempt to retrieve a hypernym for all nouns inthe...

Báo cáo khoa học: "Extracting Semantic Roles from a Model of Eventualities" pot

... representation of Max embarque la caisse sur le cargo [3J/Max em- barks the crate on the cargo boat can be analyzed in two steps. First there is a transition from an initial state IS where ... cargo~the crate was embarked on the cargo boat, and is schematized in (2). One of the argument (cargo boat) is used as a localization while the other argument is used as a localized entity (crate), ... the crate is not on the cargo boat to a final state FS where the crate is on the cargo boat. The final state can be expressed by the static passive, la caisse est embarqude sur le cargo~the...

Báo cáo khoa học: "Extracting Social Networks from Literary Fiction" pot

... The characters are in the same place at thesame time;2. The characters take turns speaking; and 3. The characters are mutually aware of eachother and each character’s speech is mutuallyintended ... Przybocki,Lance Ramshaw, Stephanie Strassel, and RalphWeischedel. 2004. The automatic content ex-traction (ace) program tasks, data, and evaluation.In Proceedings of the Fourth International Confer-ence ... of the Association of Com-putational Linguistics (ACL 2007), pages 472–479,Prague.Andrew McCallum, Xuerui Wang, and Andr´esCorrada-Emmanual. 2007. Topic and role discoveryin social networks...

Báo cáo khoa học: "Which Noun Phrases Denote Which Concepts" pot

... Computa-tional Linguistics, pages 385–393, June.Abraham Kaplan. 1955. An experimental study of ambi-guity and context. Mechanical Translation, 2:39–46.Dan Klein, Sepandar D. Kamvar, and Christopher ... citation matching (Bhattacharya and Getoor,2007; Bhattacharya and Getoor, 2006; Poon and Domingos, 2007). As with word sense induction,many approaches to these problems are unsuper-vised. A ... evaluated by comparing the system’soutput to a manually constructed set of concepts foreach category. To create this set, we randomly sam-pled noun phrases from each category and manuallymatched...

Báo cáo khoa học: "Extracting Causal Knowledge from a Medical Database Using Graphical Patterns" doc

... wereapplied to two sets of new abstracts downloaded from Medline: 100 new abstracts from the origi-nal four medical areas (25 abstracts from eacharea), and 30 abstracts from two new domains(15 ... kill can be para-phrased as to cause to die.We analyzed the 200 training abstracts toidentify the linguistic markers (such as causallinks and causative verbs) used to indicate causalrelations ... domains(15 each) – digestive system diseases and respi-ratory tract diseases. Each test abstract wasanalyzed by at least 2 of the authors to identify“medically relevant” cause and effect. A fairnumber...

Báo cáo khoa học: "Locating noun phrases with finite state transducers" pdf

... email: senella@ladl.j ussieu.fr Abstract We present a method for constructing, main- taining and consulting a database of proper nouns. We describe noun phrases composed of a proper noun and/ or ... and/ or a description of a hu- man occupation. They are formalized by finite state transducers (FST) and large coverage dictionaries and are applied to a corpus of news- papers. We take into account ... dictionaries can be automated at least in part. The third ap- plication is automatic translation of such noun phrases, by constructing the equivalent transducers in the different languages....

Tài liệu Báo cáo khóa học: UDPgalactose 4-epimerase from Saccharomyces cerevisiae A bifunctional enzyme with aldose 1-epimerase activity docx

... UDPgalactose 4-epimerase from Saccharomyces cerevisiae A bifunctional enzyme with aldose 1-epimerase activitySiddhartha Majumdar1, Jhuma Ghatak2, Sucheta Mukherji2, Hiranmoy Bhattacharjee3 and ... onepimerase andmutarotase activity.Epimerase (10 lg) was incubated with 2 mM5¢-UMP and 10 mML-arabinose at room temperature. Aliquots were taken at intervals and assayed for both epimerase ... formation ofNADH was measured at 340 nm over a linear range of2–5 min.Mutarotase assayMutarotase activity was measured with a DIP-360 polari-meter (Jasco). This assay is based upon the change in...

Tài liệu Báo cáo khoa học: Characterization of electrogenic bromosulfophthalein transport in carnation petal microsomes and its inhibition by antibodies against bilitranslocase docx

... were purchased from Sigma-Aldrich and Carlo Erba (Milan, Italy), and were of the highest available grade.AcknowledgementsThanks are due to Prof G.L. Sottocasa and Dr Anto-nella Bandiera (University ... 1), plasma membrane (lane 2) and tonoplast (lane3) vesicles obtained from carnation petals, while lane 4was loaded with rat liver plasma membrane vesicles. Inall samples, antibodies A and B ... plant metabolic pathways. Annu RevPlant Physiol Plant Mol Biol 43, 241–267.4 Fujiwara H, Tanaka Y, Yonekura-Sakakibara K, Fuku-chi-Mizutani M, Nakao M, Fukui Y, Yamaguchi M,Ashikari T &...

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