Abstract
In the Semantic Web, users can attach (semantic) meta data to Web resources. One problem is the trustworthiness of these annotations. This paper identifies two main steps towards a Semantic Web trust framework and provides possible solutions. The first step is to authenticate users and annotations. This is done in our approach by introducing Liberty Alliance identity management into Semantic Web annotations. Users have to login using Liberty Alliance accounts to create or modify annotations and their credentials are stored with the annotations. The author of an annotation can also define optional access rights to her annotations, for example to restrict access to the participants of a lecture course. We present our implementation which is an extension of the Annozilla plugin for the Mozilla Web browser. One advantage of using the Liberty Alliance specification for authentication is possible interoperability with other Web applications. Users can thereby reuse accounts for different services under their control (identity management). The second step is a framework for expressing trust in a (Web) resource. Users can rate resources (or other trust ratings) using a trust ontology. The rating is always done with regard to a distinct facet or aspect. For example, a user can express high trust in the w3c.org Web site regarding the aspect "Web technology". Our trust ontology also integrates (optional) references to domain-specific text representations of trust values.
| Original language | English |
|---|---|
| Pages (from-to) | 4P |
| Journal | CEUR Workshop Proceedings |
| Volume | 209 |
| State | Published - 2006 |
| Event | 1st Semantic Authoring and Annotation Workshop, SAAW 2006 - Located at the 5th International Semantic Web Conference, ISWC 2006; Organized Jointly with the Workshop on Web Content Mining with Human Language Technologies - Athens, GA, United States Duration: 6 Nov 2006 → 6 Nov 2006 |
Keywords
- Annotation
- Annotea
- Authentication
- Identity management
- Liberty alliance
- Trust