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In building software systems, the integration of tools with the purpose of exchanging data (i.e. tool interoperability) is common practice. Such an integration is one of the application scenarios of Model-Driven Engineering (MDE), which is often called Model-Driven Interoperability (MDI). In the last few years, some MDI approaches have been presented, and they have shown how MDE techniques are useful...
The active role of BIM constructing and constructed project in management are studied in this paper. Based on analysis of the main applications of BIM technology in projects full life cycle, this paper puts forward promoting application management framework of BIM in the project. It proposes various stages and nodes in constructing projects life cycle, introduces and studies methods as well as feasibility...
With the high demand, the increasing demand for large-scale construction projects, people seeking to build BIM database to achieve the conversion and sharing of building information. In this paper, based on the point cloud model BIM database, based on the point cloud model BIM database development ideas and obstacles, which can improve the accuracy of model information and make the information model...
This study has considered using the BIM (Building Information Modeling) model to generate and store the required information of green building indicators. The purposes of this study are first to explore what and how the required information can be generated and stored in the BIM model and then develop a BIM green building evaluation software to simplify evaluation procedure. The green building information...
Building 3D tunnel model is one of the important work in underground mining management, the methods to build 3D tunnel model by secondary development of commercial software or using OpenGL are not convenient and efficient. After analyzing the structure of DXF file, a method that building 3D tunnel model based on DXF file is proposed. On the basis of designing the tunnel section type and parameters,...
Hadoop has become a popular platform for the management of big data. To provide a healthy Hadoop platform for big data application, an HMM-based approach for performance diagnosis in Hadoop clusters is proposed. We use metrics which are collected under the normal situation to train HMM (Hidden Markov Model), then use this model to detect anomaly based on the probability, which is more accurate than...
According to the information management value of construction project based on Building Information Modeling up to now, a general structure of Building Information Modeling (BIM) based platform for life cycle information management is established and detailed implementations in construction projects are given. The general structure of BIM based information management platform is investigated in detail...
It is true that Internet has not only expanded our horizons, but also triggered an unprecedented revolution of operating electronization against the traditional method after we entered the 21st century — also called the age of Internet. In the business area, many enterprises have already achieved the goal of electronic management, saved human resources as well as material consuming, and largely increased...
This paper describes the preliminary design of disaster data as a continuation of our previous research, which is modeling disaster data as spatio-temporal data with support of unpredictable data. The disaster data are designed according to the standard of disaster data in Indonesia which is defined by the BNPB (Badan Nasional Penanggulangan Bencana). BNPB is the formal agency that responsible in...
This paper presents an application of mobile scanning systems in the urban area of Geneva done by HKD Géomatique SA. In order to facilitate the maintenance of the public transport network, a full three dimensional modelization of the aerial objects was created with a precision of 20 centimetres. Numerous quality controls were performed to assess the required precision. In the end, 38 517 point objects...
Interactive 3D models are becoming an important tool for presenting views of prehistoric and historical sites and educating audiences about the past. These models can help both specialists and non-specialists to visualize historical landscapes. However many modeling projects are moving beyond just focusing on the visual to linking informative content to the 3D representation for research purposes...
In this paper, we define a novel 3D building and query algebra for reconstructing car crash scenes. In particular, a low-cost 3D tool based on such algebra is proposed in order to collect and manage the same data set that will be used in the investigation procedures. Once acquired the GPS coordinates of the involved vehicles and scenes details by means of appropriate measurement systems, our tool...
Nowadays Augmented Reality (AR) is an emerging technology that promises significant results in a variety of applications. Despite the great advances in computer graphics and multimedia technologies, there is still a lack in the definition and building of a complete 3D object management system, in order to efficiently store, manage and retrieve such objects. In this paper a novel data model and a building...
Rail transit has a great impact on society and economy, but the building difficulty is huge. The traditional project management has been unable to provide an effective way to meet these great challenges. It is necessary to establish a new management system. Virtual reality, dynamic control and decision-making support are three major functional modules of Digital-Plat. The application of platform could...
Most predictive data mining methods are based on the assumption that the historical data involved in building and verifying a model are the best estimator of what will happen in the future. However, the relevance of past to the future depends on the application domain in a specific timeframe. In this paper, we present a method of predicting the future from temporal data using information decay technique...
Location-Based Services have become quite popular in mobile computing. However, these services are often not effective when devices are in indoor environments. This paper presents an indoor room-level Bluetooth-based localization system. Fixed stations distributed throughout the environment get the RSSI from user devices. With these data, we compute the distance between the device and the stations,...
Natural Language Interface to database NLIDB applications achieve great success when dealing with simple user requests, however most of NLIDB applications fail dramatically when users issue indirect or sophisticated requests. One modern approach to enhance NLIDB is using Ontology. Ontologies are very helpful when used with Natural Language Processing applications for supporting extraction of relevant...
Bayesian networks (BNs) are probabilistic graphical models that are widely used for building diagnosis- and decision-support expert systems. The construction of BNs with the help of human experts is a difficult and time consuming task, which is prone to errors and omissions especially when the problems are very complicated. Learning the structure of a Bayesian network model and causal relations from...
Many distributed applications require the ability to synchronize databases over a network. Using a service oriented architecture, this poses challenges with regard to the way change information is expressed and merged. We propose a solution for a database synchronization service that is transactional, idempotent and reduces merging conflicts to a minimum. The PDStore system enables fine-grained recording...
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