for Update Monitoring with Logistics Applications
Oregon Graduate Institute
The Continual Queries project aims at investigating the update monitoring problems in wide-area distributed information systems and developing tools for building intelligent and adaptive sentinels in distributed open environments such as Internet or intranets. We experiment the results of Continual Queries project with logistics applications and explore research issues for combining conventional pull-based query answering services with push-based query monitoring services.
CQEDITOR, a high level language for specifying CQ queries, triggers, and stop conditions, and building a virtual object view over registered information sources. | Overview | Examples of Continual Queries |
CQODM, the CQ Object Model, a web-page oriented data model which describe the organization of a web site as an object with an identifier (the URL), a capability description, and a set of attributes such as component list, component type (e.g., text, image, links to other pages, forms, list of records, nested lists) and so on. | Overview | Examples of the ODM Schemes |
CQTEM, the CQ Time-based Event Monitor which provides event triggering capability based on the time intervel or time point. For example, notify me every 5 hours the weather changes in Mount Hood area. | Overview | Examples of the Time-based Event Triggers |
CQCEM, the CQ content-based Event Monitor, which support content-based event triggering capability. For example, notify me whenever the average storage level of uniform X drops to 200 units. | Overview | Examples of the Content-based Event Triggers |
CQPACK, a language to combine and generate complex hypertextual view of the results of queries obtained from multiple, remote, and possibly heterogeneour data soucees. | Overview | Examples of the Schemes for Query Result Packaging |
CQALERT, the CQ alert notification controller, which reports the update monitoring results in specific forms according to user profiles and on-demand preference. | Overview | Examples of the CQALERT Schemes |
CQWRAP, a CQ wrapper meta language for searching and cnstructuring regions or components of interest in a document or in a data source object. For example, it wraps HTML pages of interest to build database structures for processing CQ queries over the HTML pages of the data sources. | Overview | Examples of the ODM Schemes |