The biologic behavior of IPC is more favorable to patient outcome than that of IDC. The chance of pure IPC causing death without an intervening event of a different histologic type is exceptionally low. Luminal A subtypes have better outcomes when compared to the other subtypes.

Domain ontology can effectively organize the knowledge of that domain and make it easier to share and reuse. We can build domain ontology on thesaurus and thematic words and index document knowledge using domain ontology. Under which this paper designs a semantic retrieval system for the document knowledge based on domain ontology, and the system consists of four main components: ontology query, semantic precomputation for document and the concept similarity, semantic extended search and reasoning search. Finally, this paper makes an experiment on high-speed railway domain. The experimental results show that the developed semantic retrieval system can reach the satisfied recall and precision.

For the fuzzy controller performance optimization, several optimization strategies on the membership function, control rules and scaling factors respectively are analyzed and compared, on the basis, the sigmoid function is introduced to replace the linear factor so to optimize the conventional fuzzy controller. The theoretical analysis is carried from mapping relations of sigmoid scaling factor and relations between it and the other parameters. It is shown that sigmoid scaling factor can get the same control effect to adjusting control rules or membership function. It can ensure the dynamic performance and at the same time effectively reduce the steady-state error, but the adjusting parameter is far less than the other strategies, it is easy and feasible.

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Rail transportation includes intercity rail transportation and urban rail transportation. Information technology is indispensable for the development of rail transportation. This paper first gives the architecture of rail transportation information technology, and puts forward the structure of rail transportation information industry based on it. In this paper, rail transportation information industry is divided into communication industry, Signal industry, vehicle information industry, power monitoring industry, environmental control and fire alarm industry, automatic fare collection industry, operation and management system industry. Then from the two aspects of railway and urban rail transportation, this paper analyses each industry chain in the rail transportation information industry.