tailieunhanh - Báo cáo khoa học: "A Small, Extendible Transformation-Based Learner"

The object of T B L is to learn an ordered sequence of transformation rules. Such rules dictate when - based on the context - a word should have its tag changed. An example would be "replace tag vb with nn if the word immediately to the left has a tag dr." Here is how this rule is represented in the # - T B L rule/template formalism: | Proceedings of EACL 99 X-TBL Lite A Small Extendible Transformation-Based Learner Torbjorn Lager Department of Linguistics Uppsala University Sweden Torb j orn. Lager@ Abstract This short paper describes - and in fact gives the complete source for - a tiny Prolog program implementing a flexible and fairly efficient TransformationBased Learning TBL system 1 Introduction Transformation-Based Learning Brill 1995 is a well-established learning method in NLP circles. This short paper presents a light version of the ẶÍ-TBL system - a general logically transparent flexible and efficient transformation-based learner presented in Lager 1999 . It turns out that a transformation-based learner complete with a compiler for templates can be implemented in less than one page of Prolog code. 2 Z-TBL Rules Representations The point of departure for TBL is a tagged initialstate corpus and a correctly tagged training corpus. Assuming the part-of-speech tagging task corpus data can be represented by means of three kinds of clauses wd P W is true iff the word w is at position p in the corpus tag P A is true iff the word at position p in the corpus is tagged A tag A B P is true iff the word at p is tagged A and the correct tag for the word at p is B Although this representation may seem a bit redundant it provides exactly the kind of indexing into the data that is A decent Prolog system can deal with millions of such clauses. Assuming a Prolog with first argument indexing. The p-TBL systems are implemented in SICStus Prolog. The object of TBL is to learn an ordered sequence of transformation rules. Such rules dictate when - based on the context - a word should have its tag changed. An example would be replace tag vb with nn if the word immediately to the left has a tag dt. Here is how this rule is represented in the p-TBL rule template formalism tag vb nn - tag dtQ -l . Conditions may refer to different features and complex conditions may be composed from simpler .

• Báo cáo khoa học
• A Small
• Extendible Transformation Based Learner
• Linguistics Uppsala
• Workshops
• scientific reports
• model language
• process natural language
• Ebook Small business management
• Small business management
• Small business
• Small business marketing
• Professional small business management
• Human resource management
• International small business
• Operations management
• Small for gestational age
• Small for date
• Fetal placental weight ratio
• Intrauterine fetal death
• Neonatal death
• BMC Genomics
• Small RNA
• Small RNA sequencing
• Small RNA oligo adenylation
• EhAgo2–2 protein
• Protozoan parasite Entamoeba histolytica
• Financial management
• Financial statements
• Small business finance
• In this workbook
• experiments are elaborated using small scale glassware and equipments from a Small Lab Kit
• developed at the Department of Chemistry
• Faculty of Science
• Chulalongkorn University in Thailand
• This Small Lab Kit was created as a result of the research project entitled “Chemistry Laboratory Based on Chemical Safety and Pollution Minimization” sponsored by Thai Research Fund (RDG 3 07 2543)
• One of the outcomes of this project is the organic laboratory book entitled “Organic Chemistry Laboratory Based on Chemical Safety and Pollution Minimization” written in Thai by professors from 7 universities in this project
• They compiled
• adjusted and tested the experiments taken from several traditional organic chemistry laboratory books using the prototype of Small Lab Kit
• Currently
• some selected experiments from this Thai organic chemistry laboratory text have further been modified
• rewritten and edited in English as appeared in this workbook
• Some experiments ar
• Group interaction
• Small group interaction
• Small group presentations
• Small groups
• Systems approach
• The tubbs model
• Communication processes
• Language behavior
• Relevant background factors
• Group circumstances
• Group structure
• Social influence processes
• Decision making processes
• Conflict management
• Desirability of conflict
• Improved information flow
• Organizational change
• The panel discussion
• The symposium
• Observing group process
• Observation instruments
• Business management
• Financial planning
• Entrepreneurial student organizations
• Small business owners
• Manage human resources
• Small companies
• Nuclear engineering and technology
• Reactivity balance for a soluble boron free small modular reactor
• Soluble boron free small modular reactor
• The SMR model
• Small Modular Reactor
• Soluble Boron Free
• Small cardamom
• Price behaviour
• Constraints in the small cardamom
• Small cardamom is a perennial crop
• Cultivated predominantly
• Controlled joint mixed year teamwork
• Designing ultra small satellites
• The specialist degree educational program
• Small and ultra small spacecrafts
• The pragmatic and ontological approaches in education
• Space engineering education
• Small ruminants
• Brucellosis in small ruminants
• Comparative sensitivity
• Specificity of various serological tests
• Detection of brucellosis in small ruminants
• Front line demonstration
• Small millets
• Bastar plateau zone
• Economics of small millet
• Yield of small millet
• γ small submodules
• γ lifting modules
• General properties
• Namely γ small submodules
• New generalization of small submodules
• Mechanical sciences
• Small punch tests
• Small and large scale yielding conditions
• Various temperatures
• Ductile–brittle transition
• Ritchie–Knott–Rice model