A unified ontology-based web page model for improving accessibility

Fayzrahmanov, Ruslan R.; Göbel, Max; Holzinger, Wolfgang; Krüpl, Bernhard; Baumgartner, Robert

doi:10.1145/1772690.1772817

Cited by 13 publications

(7 citation statements)

References 3 publications

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“…For the tasks of information extraction and web page understanding within the scope of the ABBA project, a web page model was developed, describing its visual characteristics and taking into account its DOM tree [6]. Continuing the research, we propose a web page model as a conjunction of its geometrical (GM) and logical (LM) models (cf.…”

Section: A Web Page Modelmentioning

confidence: 99%

Information Extraction from Web Pages Based on Their Visual Representation

Fayzrakhmanov

2012

Current Trends in Web Engineering

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Abstract. This research is dedicated to enhancing the efficiency of web information extraction and web accessibility. The motivation behind the research, its aim and objectives are presented, and the performed work on developing web page model for information extraction is described. We also present work on making extracted information accessible to blind users, providing them with the means to navigate and access required information quickly. We also present our ongoing research on creating efficient methods and approaches for information extraction from the proposed model. There are two main approaches considered: 1) development of the library which provides required functionality to the programmer; 2) development of declarative Datalog-like language for information extraction.

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Section: A Web Page Modelmentioning

confidence: 99%

Information Extraction from Web Pages Based on Their Visual Representation

Fayzrakhmanov

2012

Current Trends in Web Engineering

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“…The problems encountered by blind users when using the Internet (see, e.g., [2,3,4,7,8,9,19,22]) may be classified into four groups (see Table 1). The operational need is shown as the solution to each problem.…”

Section: Operational Needs and System Requirementsmentioning

confidence: 99%

An improved Web search engine for visually impaired users

Yang¹,

Hwang

Schenkman

2011

Univ Access Inf Soc

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The Google search engine was studied as a Web prototype to be modified and improved for blind users. A Specialized Search Engine for the Blind (SSEB) was developed with an accessible interface and improved functions (searching assistance functions, user-centered functions, and specialized design for the blind). An experiment was conducted with twelve participants, both blind and sighted, to verify the effects of SSEB. The performance was better with the SSEB than with the Google search engine, and the participants also showed higher satisfactions with the SSEB. Interface considerations for designing an accessible Web site for blind users are important. The users of SSEB could in the future be expanded to include most, if not all, visually impaired people, since the World Wide Web and all Internet resources should ideally be accessible to everyone.

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“…We call this model the unified ontological model (UOM) [9]. It consists of two main layers: a visual and a logical layer, and it is encoded in RDF, with concept definitions spelled out in OWL.…”

Section: Unified Ontological Modelmentioning

confidence: 99%

“…Any positive results will be augmented into the model, establishing VO-LO relations. This rich model is then the input to the MANM layer (9), which generates navigation axes for the user. Finally, the axes are injected as additional jump lists into the original HTML of the page, which is returned to the user's screen reader.…”

Section: Case Study In Web Accessibilitymentioning

confidence: 99%

A versatile model for web page representation, information extraction and content re-packaging

Krüpl-Sypien

Fayzrakhmanov

Holzinger

et al. 2011

Proceedings of the 11th ACM Symposium on Document Engineering

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On today's Web, designers take huge efforts to create visually rich websites that boast a magnitude of interactive elements. Contrarily, most web information extraction (WIE) algorithms are still based on attributed tree methods which struggle to deal with this complexity. In this paper, we introduce a versatile model to represent web documents. The model is based on gestalt theory principles-trying to capture the most important aspects in a formally exact way. It (i) represents and unifies access to visual layout, content and functional aspects; (ii) is implemented with semantic web techniques that can be leveraged for i.e. automatic reasoning. Considering the visual appearance of a web page, we view it as a collection of gestalt figures-based on gestalt primitives-each representing a specific design pattern, be it navigation menus or news articles. Based on this model, we introduce our WIE methodology, a re-engineering process involving design patterns, statistical distributions and text content properties. The complete framework consists of the UOM model, which formalizes the mentioned components, and the MANM layer that hints on structure and serialization, providing document re-packaging foundations. Finally, we discuss how we have applied and evaluated our model in the area of web accessibility.

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A unified ontology-based web page model for improving accessibility

Cited by 13 publications

References 3 publications

Information Extraction from Web Pages Based on Their Visual Representation

Information Extraction from Web Pages Based on Their Visual Representation

An improved Web search engine for visually impaired users

A versatile model for web page representation, information extraction and content re-packaging

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