tailieunhanh - Báo cáo khoa học: "SITUATIONS AND INTERVALS"

The PUNDIT system processes natural language descriptions of situations and the intervais over which they hold using an algorithm t h a t integrates ~ p e e t and ~en~e [ogle. It analyzes the tense and aspect of the real- verb to generate representations of three types of situations-states, processes and events-- and to locate the situations with respect to the time at which the text was produced. Each situation type has a distinct temporal structure, represented in terms of one or more intervals. Further, every interval has two features whose different values capture the aspectual differences between. | SITUATIONS AND INTERVALS1 Rebecca J. Passonneau Paoli Research Center UNISYS Defense Systems2 517 Paoli PA 19301 USA ABSTRACT The PUNDIT system processes natural language descriptions of situations and the intervals over which they hold using an algorithm that integrates aspect and tense logic. It analyses the tense and aspect of the main verb to generate representations of three types of situations states processes and events and to locate the situations with respect to the time at which the text was produced. Each situation type has a distinct temporal structure represented in terms of one or more intervals. Further every interval has two features whose different values capture the aspectual differences between the three different situation types. Capturing these differences makes it possible to represent very precisely the times for which predications are asserted to hold. 1. Introduction This paper describes a semantics of situations and the intervals over which they hold that is neither situation semantics Barwise and Perry 1983 nor interval semantics Dowty 1979 1982 1986 Taylor 1977 . It is unfortunately difficult to avoid the overlap in terminology because what will be described here shares certain goals and assumptions with each. The concerns addressed here however arise from the computational task of processing references to situations in natural language text in order to represent what predicates are asserted to hold over what entities and when. Situation as used here pertains to the linguistic means for referring to things in the This work was supported by DARPA under contract N00014-85-C-0012 administered by the Office of Naval Research. APPROVED FOR PUBLIC RELEASE DISTRIBUTION UNLIMITED. Formerly SDC A Burroughs Company. world . to sentences or predications. More specifically situation is the superordinate category in Mourelatos typology of aspectual classes of predications schematised in Fig. 1. SITUATIONS STATES OCCURRENCES Pressure it .

• Báo cáo khoa học
• SITUATIONS
• INTERVALS
• Rebecca J
• Passonneau Paoli
• scientific reports
• model language
• process natural language
• Special Situations
• Collections letters
• marginal employees
• Letters requesting
• financial assistance
• Ebook French business situations
• How to use this book
• Manual of Business French
• Manual of Business German
• German Business Situations
• Manual of Business Spanish
• Journal of technology and science education
• Evaluating the impact of filming
• The number of errors committed by nursing students
• Determine the efficacy of simulated clinical situations
• Simulated clinical situations
• Performance during clinical simulatons
• Application of taxonomic analysis
• The level of enterprise development in emergency situations
• Level of enterprise development
• Economic analysis in economic activities
• Industrial enterprises under emergency situations
• The management of economic activities
• State space
• Ordinary differential equations
• Differential equations
• Several flying situations of paragliders
• Simulation of several flying situations
• Towards Conversational QA
• Automatic Identification of Problematic Situations
• User Intent
• báo cáo khoa học
• mô hình ngôn ngữ
• xử lý ngôn ngữ tự nhiên
• COMMON TOPICS
• COHERENT SITUATIONS
• INTERPRETING ELLIPSIS IN THE CONTEXT OF DISCOURSE INFERENCE
• SITUATIONS AND PREPOSITIONAL PHRASES
• Erik Colban
• Jens Erik Fenstad
• Traffic Situations
• IT Solutions for Vietnam
• Tình huống giao thông
• Giải pháp công nghệ thông tin
• Giao thông Việt Nam
• Quản lý giao thông
• Smart fog computing
• Efficient situations management in smart health environments
• Smart health environments
• Health multimedia information dissemination
• Situation aware profile ontology
• Smart health services
• Guidelines myocardial revascularization
• Specific situations for CAD
• PCI in heart failure observational
• Procedural aspects of PCI
• Assessing the Anatomy of CAD
• Robust optimization model for blood supply chain in emergency situations
• Blood supply chain during
• Blood supply chain
• Processing and testing labs
• Zero tillage
• Enzyme activity
• P – Solubilizers
• Fluorescent pseudomonas
• Rainfed situations Soil and productivity
• UMMB technology
• Dairy farmers
• Field situations
• Urea molasses multi nutrient block
• Awareness and adoption
• Simpson index
• Pesticide usage patterns
• Moderate and low use situations
• Beneficial arthropods
• Non target biota as influenced
• Accountability of the court
• Some theoretical and legal situations
• Obedience to the law
• Justice protection through publicizing
• The other state agencies
• The effects of tax avoidance on corporate value
• Tax avoidance on corporate value
• Distinguished political and economic situations
• Precarious political situations
• Palestine stock exchange market
• Heart girth
• Live body weights
• Murrah buffalo calves
• Institutional situations
• Early growth performance comparison
• Suckling Murrah buffalo calves
• Public policy proposal
• First aid courses
• Emergency situations in schools
• Proposal of public policies
• History of earthquakes
• Tạp chí khoa học
• Mathematics teaching method
• Practical situations
• High school
• Teaching case
• Learning case
• Yield variation
• Rice selections
• Aerobic planting
• Yield variation of rice selections
• Water scarce situations
• BMC Cancer
• Neuroendocrine tumors
• Gastroenteropancreatic NETs
• Somatostatin analogue
• Clinical situations
• English skills
• English grammar
• advanced grammar
• English communication situations
• high school english
• english writing skills
• english dictionary