Web Data Extraction, Applications and Techniques: A Survey

Web Data Extraction is an important problem that has been studied by means of different scientific tools and in a broad range of applications. Many approaches to extracting data from the Web have been designed to solve specific problems and operate in ad-hoc domains. Other approaches, instead, heavily reuse techniques and algorithms developed in the field of Information Extraction. This survey aims at providing a structured and comprehensive overview of the literature in the field of Web Data Extraction. We provided a simple classification framework in which existing Web Data Extraction applications are grouped into two main classes, namely applications at the Enterprise level and at the Social Web level. At the Enterprise level, Web Data Extraction techniques emerge as a key tool to perform data analysis in Business and Competitive Intelligence systems as well as for business process re-engineering. At the Social Web level, Web Data Extraction techniques allow to gather a large amount of structured data continuously generated and disseminated by Web 2.0, Social Media and Online Social Network users and this offers unprecedented opportunities to analyze human behavior at a very large scale. We discuss also the potential of cross-fertilization, i.e., on the possibility of re-using Web Data Extraction techniques originally designed to work in a given domain, in other domains.Comment: Knowledge-based System

An Implementation of Web-based Machining Operation Planning

AbstractThis paper introduces a machining operation planning system for practical use in small and medium sized manufacturers. The system passes through two stages: manual input of required information and semi-automated generation of an operation plan. At the first stage, removal volumes out of a workpiece and their reference details on the part drawing are translated into the specific machining features manually. The operations to be performed for each feature are then selected from the operation list related to the feature. At the second stage, the cutting tool for each operation is determined with its proper cutting conditions by using a rule-based algorithm and retrieving a machining database gradually updated. The web interface makes it possible for the manufacturers to keep a record of their machining practice in the database and obtain the favorable data from the various sources when needed. An example is shown to demonstrate the usefulness of the system

GUIComp: A GUI Design Assistant with Real-Time, Multi-Faceted Feedback

Department of Computer Science and EngineeringMaintaining the high quality of mobile Graphic User Interfaces (GUIs) is essential to make a mobile application more useful for its users. For this reason, there are many mobile GUI prototyping tools. However, users may face challenges while designing graphic user interfaces, due to a lack of relevant skills, experience, and guidance. In particular, the users can often be overwhelmed in the first prototyping stage and it is hard to recognize mistakes for users in advance. These challenges can be significantly alleviated by supporting immediately feedback (e.g., recommendation and evaluation) while designing GUI. Due to absence of feedback, users still rely on their own ideas and intuition with mobile GUI prototyping tool that requires timeconsuming and error-prone design procedures. In this thesis, we aim at investigating what causes users to become frustrated during the design process, and how to resolve the issues. To achieve this goal, first, we conducted semistructured interviews with 16 users, to understand their challenges with an existing tool, and to identify features that can facilitate the design process. Second, based on the interview results, we built a GUI prototyping tool, called GUIComp that provides real-time multi-faceted feedback on a user???s current design, such as visual complexity scores, viewer???s attention heatmap, and recommended example designs. Third, we performed a between-user experiment, where 30 participants were asked to create mobile GUIs with either GUIComp or an existing design tool. Fourth, we asked 26 online workers to assess the designs produced in the experiment. The results indicate that GUIComp users produced more acceptable designs than the non-GUIComp users and designing with GUIComp results in a more enjoyable, satisfactory, and affordable user experience during the design process than that with the existing tool. We discuss how to design for multi-facted feedback while designing GUI to effectively interact human and AI and limitations of the study. The fundamental idea of this thesis is to go beyond traditional GUI prototyping to create more acceptable designs to general users using real-time multi-faceted feedback. The resulting systems establish a research framework where real-time multi-faceted feedback can alleviate the challenges while designing GUIsclos

Ontology-Based Data Integration in Multi-Disciplinary Engineering Environments: A Review

Today's industrial production plants are complex mechatronic systems. In the course of the production plant lifecycle, engineers from a variety of disciplines (e.g., mechanics, electronics, automation) need to collaborate in multi-disciplinary settings that are characterized by heterogeneity in terminology, methods, and tools. This collaboration yields a variety of engineering artifacts that need to be linked and integrated, which on the technical level is reflected in the need to integrate heterogeneous data. Semantic Web technologies, in particular ontologybased data integration (OBDI), are promising to tackle this challenge that has attracted strong interest from the engineering research community. This interest has resulted in a growing body of literature that is dispersed across the Semantic Web and Automation System Engineering research communities and has not been systematically reviewed so far. We address this gap with a survey reflecting on OBDI applications in the context of Multi-Disciplinary Engineering Environment (MDEE). To this end, we analyze and compare 23 OBDI applications from both the Semantic Web and the Automation System Engineering research communities. Based on this analysis, we (i) categorize OBDI variants used in MDEE, (ii) identify key problem context characteristics, (iii) compare strengths and limitations of OBDI variants as a function of problem context, and (iv) provide recommendation guidelines for the selection of OBDI variants and technologies for OBDI in MDEE

15. Interuniversitäres Doktorandenseminar Wirtschaftsinformatik der Universitäten Chemnitz, Dresden, Freiberg, Halle-Wittenberg, Jena und Leipzig

Das zum dreizehnten Male durchgeführte interuniversitäre Doktorandenseminar der Universitäten Chemnitz, Dresden, Freiberg, Halle-Wittenberg, Jena und Leipzig repräsentiert eine Kooperation mehrerer Wirtschaftsinformatik-Professoren. Es hat sich als Forum des fruchtbaren Austausches zu Forschungsthemen etabliert, die gemäß der Brückenfünktion der Wirtschaftsinformatik ein breites Spektrum zwischen Betriebswirtschaft und Technik aufspannen.:1. Model Driven Logistics Integration Engineering 2. Using Semantic Web Technologies for Classification Analysis in Social Networks 3. RealTime and Anytime Supply Chain Planning 4. Zeitplanung für Patientenpfade unter Berücksichtigung von Betten-, Behandlungskapazitäten und Fairnesskriterien 5. Automatic Editing Rights Management in Wikipedia 6. Konzeption eines Auswahlverfahrens zur Datenanalyse im Einzelhandel am Beispiel einer Einkaufsverhaltensanalyse im Lebensmitteleinzelhandel 7. Generating Graphical User Interfaces for Software Product Lines: A Constraint-based Approac

Design rules and guidelines for generic condition-based maintenance software's Graphic User Interface

The task of selecting and developing a method of Human Computer Interaction (HCI) for a Condition Based Maintenance (CBM) system, is investigated in this thesis. Efficiently and accurately communicating machinery health information extracted from Condition Monitoring (CM) equipment, to aid and assist plant and machinery maintenance decisions, is the crux of the problem being researched. Challenges facing this research include: the multitude of different CM techniques, developed for measuring different component and machinery condition parameters; the multitude of different methods of HCI; and the multitude of different ways of communicating machinery health conditions to CBM practitioners. Each challenge will be considered whilst pursuing the objective of identifying a generic set of design and development principles, applicable to the design and development of a CBM system's Human Machine Interface (HMI). [Continues.

Creating telecommunication services based on object-oriented frameworks and SDL

This paper describes the tools and techniques being applied in the TINA Open Service Creation Architecture (TOSCA) project to develop object-oriented models of distributed telecommunication services in SDL. The paper also describes the way in which Tree and Tabular Combined Notation (TTCN) test cases are derived from these models and subsequently executed against the CORBA-based implementations of these services through a TTCN/CORBA gateway

Towards computerizing intensive care sedation guidelines: design of a rule-based architecture for automated execution of clinical guidelines

<p>Abstract</p> <p>Background</p> <p>Computerized ICUs rely on software services to convey the medical condition of their patients as well as assisting the staff in taking treatment decisions. Such services are useful for following clinical guidelines quickly and accurately. However, the development of services is often time-consuming and error-prone. Consequently, many care-related activities are still conducted based on manually constructed guidelines. These are often ambiguous, which leads to unnecessary variations in treatments and costs.</p> <p>The goal of this paper is to present a semi-automatic verification and translation framework capable of turning manually constructed diagrams into ready-to-use programs. This framework combines the strengths of the manual and service-oriented approaches while decreasing their disadvantages. The aim is to close the gap in communication between the IT and the medical domain. This leads to a less time-consuming and error-prone development phase and a shorter clinical evaluation phase.</p> <p>Methods</p> <p>A framework is proposed that semi-automatically translates a clinical guideline, expressed as an XML-based flow chart, into a Drools Rule Flow by employing semantic technologies such as ontologies and SWRL. An overview of the architecture is given and all the technology choices are thoroughly motivated. Finally, it is shown how this framework can be integrated into a service-oriented architecture (SOA).</p> <p>Results</p> <p>The applicability of the Drools Rule language to express clinical guidelines is evaluated by translating an example guideline, namely the sedation protocol used for the anaesthetization of patients, to a Drools Rule Flow and executing and deploying this Rule-based application as a part of a SOA. The results show that the performance of Drools is comparable to other technologies such as Web Services and increases with the number of decision nodes present in the Rule Flow. Most delays are introduced by loading the Rule Flows.</p> <p>Conclusions</p> <p>The framework is an effective solution for computerizing clinical guidelines as it allows for quick development, evaluation and human-readable visualization of the Rules and has a good performance. By monitoring the parameters of the patient to automatically detect exceptional situations and problems and by notifying the medical staff of tasks that need to be performed, the computerized sedation guideline improves the execution of the guideline.</p