Ontology extension Sample Clauses

Ontology extension. We begin by evaluating the ontology extension techniques (Section 5). Two evaluations were performed on the taxonomies. The first measured the cohesion of the item clustering, and the second gathered human judgements of the relations that were found between child- parent concept pairs in the taxonomy. For both evaluations online surveys were created using an in-house crowdsourcing interface. Links to the surveys were sent out to a mailing list comprising staff and students at a large university.
Sample 1
Ontology extension. There is a general demand for taxonomies to organise large collections of documents into categories for browsing and exploration. In WP2 we examined four existing taxonomies that have been manually created, along with two methods for deriving taxonomies automatically from data items. We used these taxonomies to organise items from a large online cultural heritage collection automatically. We then performed two human evaluations of the taxonomies. The first measured the cohesion of the taxonomies to determine how well they group together similar items under the same concept node. The second analysed the concept relations in the taxonomies. The results show that the manual taxonomies have high quality well defined relations. However, the novel automatic method is found to generate very high cohesion. The results of the analysis are detailed in D2.2, Xxxxxxxx et al. (2012) and a summary is also presented here. The Library of Congress Subject Headings taxonomy has been manually created for the purpose of organising library collections and so might be the obvious choice to organise CH data online. However the results show that the relations within LCSH are defined less clearly than that of the Wikipedia derived taxonomies. WordNet domains performs at a similar level to the LCSH in terms of the quality of the relations. The LDA topic hierarchy gave poor results in terms of the identified topics. The topic pairs were often unrelated, and had no general-to- specific structure as would be desirable for this application. The WikiFreq hierarchy performed slightly better in this regard. Just over half the concept pairs were judged to be related. Just under a third were labelled as ‘Don’t know’ which may reflect the obscurity of the concept nodes identified. It was hoped that organising the frequency counts of the links would organise the hierarchy into a general-to-specific direction. This was not achieved, although the hierarchy does have the benefit of providing the user with an overview of the collection by immediately seeing which kind of items are most prevalent. In terms of cohesion, all the taxonomies achieved similar results except for the WikiFreq taxonomy, which achieved almost perfect cohesion. This shows how effective the Wikipedia links are in grouping together similar items. In conclusion, it was decided that a mixture of WikiFreq (for mapping items to Wikipedia categories) and the Wikipedia taxonomy to yield the taxonomy would give the best results. The...
Sample 1

Related to Ontology extension

  • Renewal, Extension The renewal or extension of any Letter of Credit shall, for purposes hereof, be treated in all respects the same as the issuance of a new Letter of Credit hereunder.

  • Contract Extension The Contract is extended for a period of six (6) months pursuant to the same terms and conditions of the contract and any executed written amendments, with a new Contract expiration date of May 31, 2025.

  • Modification, Extension The issuance of any supplement, modification, amendment, renewal, or extension to any Letter of Credit shall, for purposes hereof, be treated in all respects the same as the issuance of a new Letter of Credit hereunder.

  • Territorial Extension At the time of signature of this Agreement, or at any time thereafter, the provisions of this Agreement may be extended to such territories for whose international relations the Government of the United Kingdom are responsible as may be agreed between the Contracting Parties in an Exchange of Notes.

  • Time Extension CONTRACTOR shall provide a time extension request on completion of Task Order for delays caused by others (Permitting Agencies, COUNTY or Contract Cities, or unforeseen conditions such as inclement weather, etc.) and at no fault by CONTRACTOR, subject to approval by COUNTY. COUNTY will review the request and determine in its sole discretion whether the situation warrant a time extension at no-cost or with costs. If CONTRACTOR completes the Task Order beyond the stipulated completion date without COUNTY’s specific written approval for time extension, CONTRACTOR will be subject to liquidated damages and may be construed as non-responsive, which may affect CONTRACTOR for considerations for future Task Orders or projects.

  • Term Extension It is understood and agreed that the State may extend the Term an additional period of time, not to exceed one hundred-eighty (180) days beyond the expiration date of this Grant Contract, under the same terms and conditions. In no event, however, shall the maximum Term, including all extensions or renewals, exceed a total of sixty (60) months.

  • Contract Term Extension “Contract Term Extension” means an extension of the term of this contract, at the request of Purchaser, under this Subsection. This Subsection does not obligate Contracting Officer to grant Contract Term Extension.

  • Patent Term Extension The Parties will cooperate in selecting a patent within the Patent Rights to seek a term extension for or supplementary protection certificate under in accordance with the applicable laws of any country. Each Party agrees to execute any documents and to take any additional actions as the other Party may reasonably request in connection therewith.

  • Interim Extension Amendment a. Prior to or on the expiration date of this Contract, the Parties agree that this Contract can be extended as provided under this Section. b. The System Agency will provide written notice of interim extension amendment to the Grantee under one of the following circumstances: 1. Continue provision of services in response to a disaster declared by the governor; or 2. To ensure that services to clients continue without interruption. c. The System Agency will provide written notice of the interim extension amendment that specifies the reason and length of time for the extension. d. Grantee will provide and invoice for services in the same manner as stated in the Contract. e. An interim extension under Section (b)(1) above will extend the term of the contract not longer than 30 days after governor's disaster declaration is declared unless the Parties agree to a shorter period of time. f. An interim extension under Section (b)(2) above will be a one-time extension for time determined by the System Agency.

  • EXTENSION OF USE The Contract may be extended to additional States or governmental jurisdictions upon mutual written agreement between New York State (the lead contracting State) and the Contractor. Political subdivisions and other authorized entities within each participating State or governmental jurisdiction may also participate in the Contract if such State normally allows participation by such entities. New York State reserves the right to negotiate additional minimum NYS Vehicle Discounts based on any increased volume generated by such extensions.