Anchor Links Research Articles

Extraction of Semantic Text Portion Related to Anchor Link

Recently, semantic text portion (STP) is getting popular in the field of Web mining. STP is a text portion in the original page which is semantically related to the anchor pointing to the target page. STPs may include the facts and the people's opinions about the target pages. STPs can be used for various upper-level applications such as automatic summarization and document categorization. In this paper, we concentrate on extracting STPs. We conduct a survey of STP to see the positions of STPs in original pages and find out HTML tags which can divide STPs from the other text portions in original pages. We then develop a method for extracting STPs based on the result of the survey. The experimental results show that our method achieves high performance.

Engineering a multi-purpose test collection for Web retrieval experiments

Past research into text retrieval methods for the Web has been restricted by the lack of a test collection capable of supporting experiments which are both realistic and reproducible. The 1.69 million document WT10g collection is proposed as a multi-purpose testbed for experiments with these attributes, in distributed IR, hyperlink algorithms and conventional ad hoc retrieval. WT10g was constructed by selecting from a superset of documents in such a way that desirable corpus properties were preserved or optimised. These properties include: a high degree of inter-server connectivity, integrity of server holdings, inclusion of documents related to a very wide spread of likely queries, and a realistic distribution of server holding sizes. We confirm that WT10g contains exploitable link information using a site (homepage) finding experiment. Our results show that, on this task, Okapi BM25 works better on propagated link anchor text than on full text. WT10g was used in TREC-9 and TREC-2000 and both topic relevance and homepage finding queries and judgments are available.

Encapsulation and information hiding as the keys to enhanced hypermedia development and maintenance

This paper presents a solution to the maintenance problem in hypermedia by applying object-oriented techniques to both the hypermedia data model and the hypermedia system’s actual implementation. First, the primary concepts of the “MESH” (Maintainable, End user friendly, Structured Hypermedia) approach are discussed briefly. These consist of a conceptual data model, a navigation paradigm and an implementation framework. Thereafter, it is shown how the object-oriented concepts of encapsulation and information hiding result in a hypermedia system consisting of self-contained, independently coded nodes. Intranode maintenance is separated entirely from internode maintenance: the hyperbase’s link structure can be updated without affecting node content, whereas an individual node’s multimedia content can be reorganized without necessitating updates to links or link anchors.

Concepts for improved visualization of Web link attributes

This paper discusses methods to generate and display automatically additional hyperlink information to the users of the World Wide Web. Current Web browsers make it hard to predict what will happen if a link is followed: users get different information than they expect, a new window may be opened, a download starts, or the destination object is just not available. Instead of giving an appropriate notification in advance, users have to follow a link, check whether the document contains the expected information, get back, try another link etc. However, usually it is possible to obtain additional hyperlink information from several sources like link anchor tags, the user’s history and Web servers. Furthermore, with little enhancements, Web servers may include even more additional information to the hyperlinks in Web documents. These can be displayed before users select a link to improve navigation and reduce the cognitive overhead. In this paper several types of Web hyperlink information are listed, potential methods to present these facts are compared, the prototype implementation of the proposed concept — called by us HyperScout — is presented, and further developments are discussed.

Myosin Iβ Is Located at Tip Link Anchors in Vestibular Hair Bundles

Recent studies have suggested that myosin Ibeta mediates the adaptation of mechanoelectrical transduction in vestibular hair cells. An important prediction of this hypothesis is that myosin Ibeta should be found in the side insertional plaque, an osmiophilic hair bundle structure that anchors tip links and is thought to house the adaptation motor. To determine whether myosin Ibeta was situated properly to perform adaptation, we used immunofluorescence and immunoelectron microscopy with the monoclonal antibody mT2 to examine the distribution of myosin Ibeta in hair bundles of the bullfrog utricle. Although utricular hair cells differ in their rates and extent of adaptation [Baird RA (1994) Comparative transduction mechanisms of hair cells in the bullfrog utriculus. II. Sensitivity and response dynamics to hair bundle displacement. J Neurophysiol 71:685-705.], myosin Ibeta was present in all hair bundles, regardless of adaptation kinetics. Confirming that, nevertheless, it was positioned properly to mediate adaptation, myosin Ibeta was found at significantly higher levels in the side insertional plaque. Myosin Ibeta was also present at elevated levels at the second tip link anchor of a hair bundle, the tip insertional plaque, found at the tip of a stereocilium. These data support myosin Ibeta as the adaptation motor and are consistent with the suggestion that the motor serves to restore tension applied to transduction channels to an optimal level, albeit with different kinetics in different cell types.

The electronic business card: an experiment in half-dead hypertext

Abstract Half-dead hypertext has links where the user has to do some work to retrieve the destination nodes (for example mount a CD-ROM or send an email message). Also, response times may be so slow that users do not have the normal hypertext feeling of freely navigating an information space. This is in contrast to normal live hypertext where the nodes appear immediately upon activation of a link anchor and dead hypertext where the links are simple cross-references to material that is not available on the computer and thus cannot be retrieved at all. Half-dead hypertext can be used in cases where live links are technically difficult or impossible to support. One example is the electronic business card, which is a link to further information about its owner. Electronic business cards can be transmitted between personal digital assistants and will allow the recipient to link to much more extensive information than can be transmitted and stored on a PDA platform. Also, electronic business card links can be p...

Experimenting with HyTime architectural forms for hypertext interchange

Microcosm [3,4] is an open hypermedia system developed over the past four years at the University of Southampton. A fundamental feature of Microcosm is that no information concerning links is held in documents; instead all link information is held in external linkbases which contain the required details about the source and destination anchors of the links. This feature is particularly important as it enables third party applications to act as document viewers since it is not necessary to adapt the application to manipulate data structures that include link anchor information. Another feature of Microcosm is that it is composed of independent components (document viewers and link managers) which communicate by passing messages

Core Flow Analysis of Liquid-Metal Magnetohydrodynamic Flow in Slotted Channels with Anchor Links

In this paper a computationally efficient method for analyzing magnetohydrodynamic (MHD) flow is used to investigate flow in a channel with a high aspect ratio that is mechanically strengthened by the use of anchor links. The method used is the core flow approximation, which neglects inertial and viscous effects and the induced magnetic field. This reduces the governing equations to a set of linear equations. These assumptions are often valid at the high magnetic fields characteristic of a fusion reactor. The slotted duct shape is used to reduce the MHD pressure drop, which may be excessive in liquid-metal blankets. It may be necessary, however, to use anchor links in the design, and these anchor links introduce an additional pressure drop. The analysis shows that the size is more important than the conductivity of the anchor link. Depending on the size of the anchor link, the pressure drop is shown to increase by as much as 100% for the geometries analyzed.