scholarly journals Natural Language Interfaces to Ontologies: Combining Syntactic Analysis and Ontology-Based Lookup through the User Interaction

2010 ◽  
pp. 106-120 ◽  
Author(s):  
Danica Damljanovic ◽  
Milan Agatonovic ◽  
Hamish Cunningham
Keyword(s):  
Natural Language ◽  
User Interaction ◽  
Syntactic Analysis ◽  
Natural Language Interfaces

PRINCIPAL PROBLEMS OF NATURAL LANGUAGE PROCESSING SYSTEMS

2018 ◽  
pp. 35-38
Author(s):  
O. Hyryn
Keyword(s):  
Natural Language Processing ◽  
Natural Language ◽  
Language Processing ◽  
Syntactic Analysis ◽  
Syntactic Ambiguity ◽  
Grammatical Structure ◽  
English Sentence ◽  
Analysis Methods ◽  
The Way

The article deals with natural language processing, namely that of an English sentence. The article describes the problems, which might arise during the process and which are connected with graphic, semantic, and syntactic ambiguity. The article provides the description of how the problems had been solved before the automatic syntactic analysis was applied and the way, such analysis methods could be helpful in developing new analysis algorithms. The analysis focuses on the issues, blocking the basis for the natural language processing — parsing — the process of sentence analysis according to their structure, content and meaning, which aims to analyze the grammatical structure of the sentence, the division of sentences into constituent components and defining links between them.

Comparing ten WCAG tools for accessibility evaluation of websites

2021 ◽  
pp. 1-23
Author(s):  
Shashank Kumar ◽  
Jeevitha Shree DV ◽  
Pradipta Biswas
Keyword(s):  
User Interaction ◽  
Web Accessibility ◽  
User Profile ◽  
Syntactic Analysis ◽  
Color Contrast ◽  
Careful Evaluation ◽  
Accessibility Issues ◽  
Web Developers ◽  
Compare And Contrast ◽  
Common User

BACKGROUND: Web accessibility is one of the most important aspects of building a website. It is important for web developers to ensure that their website is accessible according to WCAG standards for people with different range of abilities. There is plethora of tools for ensuring conformance to WCAG standards but not many studies compared performance of automatic WCAG tools. OBJECTIVE: This paper compares a set of ten WCAG tools and their results in terms of ease of comprehension and interpretation by web developers. We proposed a Common User Profile format to help personalize contents of website making it accessible to people with different range of abilities. METHODS: We selected ten WCAG tools from World Wide Web Consortium (W3C) to evaluate landing pages of two popular websites. For each webpage, we identified accessibility issues and recommended alternate suggestions to help developers improve accessibility. Further, we highlighted accessibility issues that cannot be captured only through conformance to WCAG tools; and proposed additional methods to evaluate accessibility through an Inclusive User Model. We then demonstrated how simulation of user interaction can capture usability and accessibility issues that are not detected through only syntactic analysis of websites’ content. Finally, we proposed a Common User Profile format that can be used to compare and contrast accessibility systems and services, and to simulate and personalize interaction for users with different range of abilities. RESULTS AND CONCLUSIONS: After careful evaluation of two websites using the ten tools, we noted that, both websites lacked color contrast between background and foreground; lack of sign language alternatives; opening of pop-ups without proper warnings and so on. Further, results from comparative analysis of selected web accessibility tools noted that, there is no single tool that can be found ideal in all aspects. However, from our study, Utilitia Validator by Utilitia SP. z O.O was considered the most feasible tool. By rectifying and incorporating issues and alternate suggestions by simulation study and Common User Profile format respectively, developers can improve both websites making it accessible to maximum audience.

Natural language interfaces

1978 ◽  
Author(s):  
Howard Lee Morgan ◽  
Edgar F. Codd ◽  
William A. Martin ◽  
Larry Harris ◽  
Daniel Sagalowicz ◽  
...  
Keyword(s):  
Natural Language ◽  
Natural Language Interfaces

scholarly journals Recognition of spatial data from natural language texts for the purpose of visualization

2021 ◽  
Vol 12 (5-2021) ◽  
pp. 50-56
Author(s):  
Boris M. Pileckiy ◽  
Keyword(s):  
Natural Language ◽  
Spatial Data ◽  
Software Tool ◽  
Syntactic Analysis ◽  
Practical Implementation ◽  
Distributed Software ◽  
Preliminary Results

This paper describes one of the possible implementation options for the recognition of spatial data from natural language texts. The proposed option is based on the lexico-syntactic analysis of texts, which requires the use of special grammars and dictionaries. Spatial data recognition is carried out for their subsequent geocoding and visualization. The practical implementation of spatial data recognition is done using a free, freely distributed software tool. Also, some applications of spatial data are considered in the work and preliminary results of spatial data recognition are given.

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