Background: Management of solid waste is a set of regular and coherent acts on production control, storage and collection, handling, processing and disposal of solid waste. These activities should be in accordance with best conditions of public health, economy, and protection of industries, aesthetical and other aspects of environmental and public requirements. People cooperation in solid waste...

To support for interdisciplinary research in the Titech 21COE LKR Program, we are developing an advanced information storage system to manage the large-scale knowledge resources. The flexibility and extensibility are key issues to provide the required services. To realize the flexibility, we take an approach to combine two types of systems by web-service APIs: an information storage system prov...

As well as providing various APIs for the development of inference engines and storage models, Jena is widely used in the development of systems or tools related with Web ontology management. However, Jena still has several problems with regard to the development of real applications, one of the most important being that its query processing performance is unacceptable. This paper proposes a st...

New research concerning knowledge and ontology management systems in many cases need the versatility of native XML storage for manipulations with diverse and changing data structures. Within the DEB (Dictionary Editor and Browser) development platform, the efficiency of the background data storage for all kinds of structures and services including dictionaries, wordnet semantic networks, classi...