Abstract.This article presents the possibilities of using mining techniques in building Decision Support Systems. One of the biggest problems is the issue of gaining data and knowledge, their mutual representation and reciprocal usage. Data and knowledge make up the resources of the system and are its key link. It has been estimated that 70% to 80% of the sources available for general use are text documents. The text mining technique is defined as a process aiming to extract previously unknown information from text resources (e.g. technological cards). The fundamental feature of text mining is the ability to converse text documents in formal form, which opens up great possibilities of conducting further analysis. This article presents chosen IT tools using text mining technique, along with the elements of the text mining analysis. The main objectives are the simplification of the process of knowledge acquisition, its automation and shortening as well as the creation of ready-made models containing knowledge. Previous tests with knowledge acquisition (surveys, questionnaires) were time-consuming and exacting for experts.

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The paper presents the evolution of concepts, an overview of research and applications pertaining to reliability in construction production, the use of reserves, robust itineraries, and contingency of time and cost. It describes areas of management advisory systems in relation to the cycle of risk analysis. The article also presents the main trends in different approaches to risk management in construction and construction project processes, such as reliability of production, discount methods, methods of reporting, integrated management together with trends towards standardisation of the investment process management. The discussion is embedded in the specific context: the achievements of trilateral academic colloquia, with participation of Lithuania, Germany and Poland, and a review of work by Professor Kapliński, the chair of the Polish delegation to the aforementioned colloquia. Santrauka Straipsnyje pateikiama koncepcijų raida, mokslinių tyrimų ir taikomųjų programų, susijusių su statybos produkcijos pati-kimumu, atsargų, patikimų maršrutų bei laiko ir lėšų naudojimo nenumatytais atvejais, apžvalga. Aprašomos valdymo konsultavimo sistemų sritys, atsižvelgiant į rizikos analizės ciklą. Straipsnyje taip pat apžvelgiamos pagrindinės skirtingų požiūrių į rizikos valdymą statybos ir statybos projektavimo procesų metu tendencijos, pavyzdžiui, gamybos patikimumo, diskonto metodai, atskaitomybės metodai, integruotas valdymas bei investicinio proceso valdymo standartizavimo ten-dencijos. Diskusija pateikiama specifiniame trišalio akademinio bendradarbiavimo, dalyvaujant Lietuvai, Vokietijai ir Lenkijai, bei Lenkijos delegacijos pirmininko profesoriaus Kapliński pasiekimų kontekste.

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