Resource Space Model
Classification is the basic method for humans to recognize and manage things. Different classification methods can be used to classify one set
of things no matter what forms they are and whether they are centralized or decentralized. The Resource Space Model is to efficiently organize and
manage the contents of resources by a space consists of multiple classification methods. Different from distance space, an axis of the resource
space represents a classification method. A coordinate, which can be a tree structure, represents a complex class. There could be no order between
coordinates. For raising the efficiency and correctness of operations on resource space, a set of normal forms to normalize the resource space is defined.
The 1st Normal Form is about no redundancy, the 2nd Normal Form is about independency of classifications, and the 3rd Normal Form is about the orthogonality
between axes. Normal forms are then extended to 2+NF and 4NF to loose or tighten the constraints on space. The schema of resource space is proposed to
regulate the instances of resource space. The topological characteristic and the relations between the normal forms and the operations such as merge
and join are unveiled. The operation language for Resource Space Model is designed for querying and managing resources. A complete set of operations is
given through investigating the completeness of operations. The integrity of resource space is proposed to ensure the appropriate operations.
To deal with the inexactness of classification and the uncertainty of storing and querying resources, the Resource Space Model is extended to the
Probabilistic Resource Space Model so as to deal with the uncertainty. The effect of the Probabilistic RSM enables resources to be distributed
evenly in the space. The method of mappings between RSM, relational database and OWL (Web Ontology Language) is proposed to unveil the uniformity in the
diversity of models. Different models have different characteristics, how to make use of the characteristics of different models is studied, so the method
of integrating the three models is proposed. This provides an approach to integrating more semantic models. The method of deploying the normalized resource
space onto peer-to-peer networks is proposed to obtain the advantages of P2P networks in managing large-scale dynamic network. The synergy of normalization and
self-organization provides a solution to solve the problem of managing dynamic environment, large-scale decentralized, self-organized and complex resources.
The general theory and method of RSM has been established during 2003-2007. China Knowledge Grid Research Group has lunched the new research on RSM 2.0 by incorporating the features of Web 2.0.
 H.Zhuge, The Web Resource Space Model, Springer, 2008. (Table of Content, Preface, and Chapter 1).
 Jin Liu, X. Li, and L. Feng, Resource space view tour mechanism, Concurrency and Computation: Practice and Experience, 20(7)(2008) 863 - 883.
 H. Zhuge and X. Li, RSM-based Gossip on P2P Network, Keynote at ICA3PP2007.
 H.Zhuge, P.Shi, Y.Xing and C.He, Transformation from OWL Description to Resource Space Model, 1st Asian Semantic Web Conference, Beijing, China, Sept. 3-7, 2006. (Keynote), LNCS 4185, pp.4-23.
 H.Zhuge and E.Yao, Completeness of Query Operations on Resource Spaces, Proceedings of 2nd International Conference on Semantics, Knowledge and Grid, Guilin, China, November, 2006, IEEE Computer Society Press. (Keynote)
 H.Zhuge and Y.Xing, Integrity Theory for Resource Space Model and Its Application, The 6th International Conference on Web-Age Information Management (WAIM2005), Hangzhou, China, Oct.11-13, 2005. (Keynote), LNCS 3739, pp.8-24.
 H.Zhuge, E.Yao, Y.Xing, and J.Liu, Extended Normal Form Theory of Resource Space Model, Future Generation Computer Systems,21 (1) (2005) 189-198.
 H.Zhuge, The Knowledge Grid, World Scientific, Singapore, 2004. (Chapter 2 discusses the normalization of semantic link network, chapter 3 discusses resource space model, and chapter 4 discusses the integration of the semantic link network and the resource space model to form a single semantic image.)
 H.Zhuge, Resource Space Grid: Model, Method and Platform, Concurrency and Computation: Practice and Experience, 16 (14) (2004) 1385 - 1413.
 H.Zhuge, Fuzzy resource space model and platform. Journal of Systems and Software, 73 (3) (2004) 389-396.
 H.Zhuge, Resource Space Model, Its Design Method and Applications. Journal of Systems and Software, 72 (1) (2004) 71-81.
 H.Zhuge and Lei He, Automatic maintenance of category hierarchy. Future Generation Computer Systems, 67 (2017) 1ĘC12.