CHI '87 Proceedings of the SIGCHI/GI Conference on Human Factors in Computing Systems and Graphics Interface
KMS: a distributed hypermedia system for managing knowledge in organizations
Communications of the ACM
Reflections on NoteCards: seven issues for the next generation of hypermedia systems
Communications of the ACM
Scripted documents: a hypermedia path mechanism
HYPERTEXT '89 Proceedings of the second annual ACM conference on Hypertext
Expressing structural hypertext queries in graphlog
HYPERTEXT '89 Proceedings of the second annual ACM conference on Hypertext
Storage and retrieval of structured documents
Information Processing and Management: an International Journal
A query language for the O2 object-oriented databases
Proceedings of the second international workshop on Database programming languages
The SGML handbook
HDM—a model for the design of hypertext applications
HYPERTEXT '91 Proceedings of the third annual ACM conference on Hypertext
Using structured types to incorporate knowledge in hypertext
HYPERTEXT '91 Proceedings of the third annual ACM conference on Hypertext
A logical query language for hypertext systems
Hypertext: concepts, systems and applications
An algebra for hierarchically organized text-dominated databases
Information Processing and Management: an International Journal
Combining hypertext and structured documents in Grif
ECHT '92 Proceedings of the ACM conference on Hypertext
Gram: a graph data model and query languages
ECHT '92 Proceedings of the ACM conference on Hypertext
MORE: Multimedia Object Retrieval Environment
HYPERTEXT '93 Proceedings of the fifth ACM conference on Hypertext
Hyperdocuments as automata: trace-based browsing property verification
ECHT '92 Proceedings of the ACM conference on Hypertext
From structured documents to novel query facilities
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
Querying typed hypertexts in Multicard/O2
ECHT '94 Proceedings of the 1994 ACM European conference on Hypermedia technology
A graph-oriented object database model
PODS '90 Proceedings of the ninth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
IEEE Transactions on Knowledge and Data Engineering
Index structures for structured documents
Proceedings of the first ACM international conference on Digital libraries
HyperStorM: an extensible object-oriented hypermedia engine
Proceedings of the the seventh ACM conference on Hypertext
What the query told the link: the integration of hypertext and information retrieval
HYPERTEXT '97 Proceedings of the eighth ACM conference on Hypertext
Enforcing strong object typing in flexible hypermedia
Proceedings of the ninth ACM conference on Hypertext and hypermedia : links, objects, time and space---structure in hypermedia systems: links, objects, time and space---structure in hypermedia systems
Combining structure search and content search for the World-Wide Web
Proceedings of the ninth ACM conference on Hypertext and hypermedia : links, objects, time and space---structure in hypermedia systems: links, objects, time and space---structure in hypermedia systems
Multimedia Tools and Applications
Design and Query Strategies to Hypermedia Applications
Multimedia Tools and Applications
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Hierarchical logical structure and hypertext links are complementary and can be combined to build more powerful document management systems. Previous work exploits this complementarity for building better document processors, browsers and editing tools, but not for building sophisticated querying mechanisms. Querying in hypertext has been a requirement since [19] and has already been elaborated in many hypertext systems, but has not yet been used for hypertext systems superimposed on an underlying hierarchical logical structure.In this paper we use the model and the SQL-like query language of [10] in order to manage structured documents with hypertext links. The model represents a structured documents with hypertext links. The model represents a structured document with typed links as a complex object, and uses paths through the document structure, as first class citizens in formulating queries. Several examples of queries illustrate, from a practical point of view, the expressive power of the language to retrieve documents, even without exact knowledge of their structure in a simple and homogeneous fashion. It must be stressed that the proposed model and language implement the equivalent HyTime Location Address Module. In fact, the language is more powerful than the corresponding HyQ query facilities. The implementation and the description throughout the paper use the SGML standard to represent the document structure and the object-oriented DBMS O2 to implement the query language and the storage module.