| Collaborative Visual Analysis of Sentiment in Twitter Events | | BIBAK | Full-Text | 1-8 | |
| Michael Brooks; John J. Robinson; Megan K. Torkildson; Sungsoo (Ray) Hong; Cecilia R. Aragon | |||
| Researchers across many fields are increasingly using data from social media
sites to address questions about individual and group social behaviors.
However, the size and complexity of these data sets challenge traditional
research methods; many new tools and techniques have been developed to support
research in this area. In this paper, we present our experience designing and
evaluating Agave, a collaborative visual analysis system for exploring events
and sentiment over time in large tweet data sets. We offer findings from
evaluating Agave with researchers experienced with social media data, focusing
on how users interpreted sentiment labels shown in the interface and on the
value of collaboration for stimulating exploratory analysis. Keywords: Collaboration; visual analytics; social media; sentiment; Twitter | |||
| Effects of Graph Embellishments on the Perception of System States in Mobile Monitoring Tasks | | BIBAK | Full-Text | 9-18 | |
| Frode Eika Sandnes; Kjetil Dyrgrav | |||
| Monitoring of critical systems such as large server parks require suitable
visualization tools that draw the attention to essential aspects of system
state to ensure continuous operation. Moreover, administration is increasingly
performed using mobile devices giving operators more freedom. Mobile device
form factors limit the amount of data that can be displayed. This study
explores if visual embellishments in data visualizations improve the perception
of system states for mobile administrators. The RRDtool time series data
visualizer, which is deployed by the Munin monitoring tool, is used as basis
and compared to an experimental monitoring tool that employs visual
embellishment enhancements. Talk aloud system monitoring sessions were employed
with 24 IT-professionals both with and without Munin experience. The results
show that the embellishments results in significantly shorter time to interpret
the views while they do not significantly help determine the general
characteristics of the views. Previous experience with Munin had limited effect
on performance. One implications of this work is that embellishments can help
focus attention towards important state changes in mobile visualizations. Keywords: system administration; embellishments; mobile monitoring | |||
| Collaborative Lossless Visualization of n-D Data by Collocated Paired Coordinates | | BIBAK | Full-Text | 19-26 | |
| Boris Kovalerchuk; Vladimir Grishin | |||
| The collaborative approach is a natural way to enhance visualization and
visual analytics methods. This paper continues our long-term efforts on
enhancement of visualization and visual analytics methods. The major challenges
in visualization of large n-D data in 2-D are not only in providing lossless
visualization by using sophisticated computational methods, but also in
supporting the most efficient and fast usage of abilities of users (agents) to
analyze visualized information and to extract patterns visually. This paper
describes a collaborative approach to support n-D data visualization based on
new lossless n-D visualization methods that we propose. The second part of this
work presented in a separate paper is focused on experimental results of
cooperative n-D data visualization described in this paper. Keywords: Collaborative multi-dimensional data visualization; Lossless visualization | |||
| Multidimensional Collaborative Lossless Visualization: Experimental Study | | BIBAK | Full-Text | 27-35 | |
| Vladimir Grishin; Boris Kovalerchuk | |||
| The major challenges in visualization of large n-D data in 2-D are in
supporting the most efficient and fast usage of abilities of users to analyze
visualized information and to extract patterns visually. This paper describes
experimental results of a collaborative approach to support n-D data
visualization based on new lossless n-D visualization methods (collocated
paired coordinates and their stars modifications) that we propose. This is a
second part of the work. The first part presented in a separate paper is
focused on description of the algorithms. Keywords: Collaborative multi-dimensional data visualization; stars visualization;
experiment | |||
| The Plot-poll Redesigned: Lessons from the Deployment of a Collective Mood-tracker in an Online Support Group | | BIBAK | Full-Text | 36-43 | |
| Alex Ivanov; Emma Mileva | |||
| The study described in this paper extends our earlier work on improving the
user experience in online support groups via embedding social knowledge
visualization interfaces. A real online support group was created for the
purpose of testing a web-poll mood tracker for 16 weeks. We describe the design
and deployment of both 2005 and current plot-polls, and conclude with the mixed
results from our qualitative investigation, which yielded useful
recommendations for future research. Keywords: data visualization; social visualization; online support group; mood
tracker; interface design; ambient displays; collaborative design | |||
| Improving Quality and Performance of Facility Management Using Building Information Modelling | | BIBAK | Full-Text | 44-50 | |
| Heap-Yih Chong; Jun Wang; Wenchi Shou; Xiangyu Wang; Jun Guo | |||
| Poor facility management has been attributed to lack of coordination and
information during the maintenance process. The need for high quality applies
not only to construction works and workmanship, but is also for its subsequent
coordination and maintenance of a building. The paper aims to improve quality
and performance of maintenance by integrating an advanced technology with a
managerial approach, namely, building information modelling (BIM) and facility
management. A BIM case study was investigated, which was located in Shanghai,
China. Five significant areas were identified to improve the quality and
performance of facility management, namely, centralized system, visualization,
simplification, modifiable system, and smart emergency escape. The results
highlight the benefits in applying the integrated system between BIM and
facility management. It draws an insightful inference in enhancing quality
services in facility management. Keywords: BIM; Facility Management; Integration; Quality; Benefits; Case Study | |||
| Engineering Open Data Visualizations over the Web | | BIBAK | Full-Text | 51-59 | |
| Rober Morales-Chaparro; Fernando Sánchez-Figueroa; Juan Carlos Preciado | |||
| Data Visualization has been traditionally one of the main pillars for
understanding the information coming from Business Intelligence/Analytics based
systems. While building visualizations has never been an easy task, moving data
visualization for open data over the Web adds extra complexity. The variety of
data sources, devices and users, together with the multidimensional nature of
data and the continuous evolution of user requirements makes Data Visualization
on the Web for open data more complicated as well as challenging. This paper
briefly introduces a DSL for engineering open data visualizations over the Web
whose aim is twofold. On the one hand, overcoming technological dependencies
such as data source, data set, rendering technologies and so on. On the other
hand, bringing the possibility of building useful graphics to users with domain
expertise but non-technical skills. Keywords: Open Data; Software Engineering; Data Visualization; Domain Specific
Language | |||
| Data Wrangling: A Decisive Step for Compact Regression Trees | | BIBAK | Full-Text | 60-63 | |
| Olivier Parisot; Yoanne Didry; Thomas Tamisier | |||
| Nowadays, modern visualization and decision support platforms provide
advanced and interactive tools for data wrangling, in order to facilitate data
analysis. Nonetheless, it is a tedious process that requires a deep experience
in data transformation. In this paper, we propose an automated data wrangling
method, based on a genetic algorithm, that helps to obtain simpler regression
trees. Keywords: data wrangling; genetic algorithms; decision support | |||
| Analysis and Visualization of Sentiment and Emotion on Crisis Tweets | | BIBAK | Full-Text | 64-67 | |
| Megan K. Torkildson; Kate Starbird; Cecilia Aragon | |||
| Understanding how people communicate during disasters is important for
creating systems to support this communication. Twitter is commonly used to
broadcast information and to organize support during times of need. During the
2010 Gulf Oil Spill, Twitter was utilized for spreading information, sharing
firsthand observations, and to voice concern about the situation. Through
building a series of classifiers to detect emotion and sentiment, the
distribution of emotion during the Gulf Oil Spill can be analyzed and its
propagation compared against released information and corresponding events. We
contribute a series of emotion classifiers and a prototype collaborative
visualization of the results and discuss their implications. Keywords: Sentiment Analysis; Twitter; Machine Learning | |||
| A Dynamic Delay Optimization Scheduling Model | | BIBAK | Full-Text | 68-71 | |
| Chengwei Yang; Ji-Dong Guo; Jing Chi | |||
| The response time starts to suffer due to the limitation of the Hadoop's
FIFO scheduler, and this is unacceptable to execute the large scale instance
intensive tasks. To enhance the system resource utilization, we propose a new
scheduling solution. To reduce the cost, we use a delay scheduling algorithm to
determine the scheduling opportunity. Delay scheduling can ensure that the
current service can make full use of the resources, improve resource
utilization, and reduce the probability of failure scheduling. The initial
experiments demonstrate that the large scale instances intensive workflow tasks
will benefit from the Min-Cost delay scheduling algorithm that is proposed in
this paper. Keywords: Scheduling; Delay; Cloud | |||
| Cloud Computing for Improving Integrity of Data from Biotechnological Plant | | BIBAK | Full-Text | 72-79 | |
| Dariusz Choinski; Artur Wodolazski; Piotr Skupin | |||
| The extraction of necessary information and its interpretation in the case
of biotechnological processes may be a difficult task. This is due to the fact
that the large amounts of available data are often a combination of on-line and
off-line measurements with a hierarchical structure. Moreover, the measurement
data can be geographically dispersed and stored in the different types of
databases. To facilitate the extraction of the most significant information on
the biological process, the paper presents a model of integration of the
hierarchical database with the relational one in the cloud computing
environment. The relational database model will allow the less experienced
bioprocess designers to find the answers to specific questions. The use of
cloud services ensures sufficient data storage space and ease of data
management. In turn, data integrity in the cloud environment is realized by
means of DataBase Management System with Open DataBase Connectivity drivers. Keywords: cloud computing; relational database; referential integrity;
biotechnological process | |||
| Integration of Industrial Control with Analytical Expert Measurements for Cooperative Operations | | BIBAK | Full-Text | 80-87 | |
| Witold Nocon; Anna Wegrzyn; Grzegorz Polaków; Dariusz Choinski; Mieczyslaw Metzger | |||
| The paper proposes a framework for incorporating results of the analytical
and laboratory measurements directly into the process control system. It is
based on an object-oriented framework for cooperative testing of control
algorithms implemented for experimental pilot-plants. It enables modification
of the control algorithm structure without rewriting the main software
component executed on the programmable automation controller (PAC). In this
paper the framework is expanded to enable access to web-based services for the
purpose of incorporating the results of advanced off-line measurements directly
in the process control system. Keywords: process control; control systems engineering; cloud computing; web services;
biotechnology | |||
| Fostering Collaboration by Location-Based Crowdsourcing | | BIBAK | Full-Text | 88-95 | |
| Christine Bauer; Andreas Mladenow; Christine Strauss | |||
| Crowdsourcing is a recently developed method that relies on various
alternatives of collaboration to solve problems efficiently. Crowdsourcing is a
recent development to solve a variety of problems efficiently, and which
implies various alternatives of collaboration. However, as novel technologies
are able to exploit location-sensing capabilities of mobile devices,
location-based crowdsourcing (LBCS) developed as a new concept. This paper
suggests a typology for LBCS as a means for fostering collaboration with the
crowd through three types of LBCS: confirmation-based, digital good-based, and
physical-based. Each type is underpinned with exemplary applications.
Furthermore, opportunities and challenges are analysed; and future trends in
LBCS are discussed. Keywords: Location-based Crowdsourcing; LBCS; Collaboration; Collaborative
Crowdsourcing; Time-dependency; Location-dependency; Typology; Social
Communities; Mobile Crowdsourcing Applications | |||
| A Web-Based Practice Teaching System in Collaboration with Enterprise | | BIBAK | Full-Text | 96-102 | |
| Lin Zhou; Juntang Yuan; Changan Liu; Aihua Huang | |||
| It is very important for undergraduate students to learn how to apply the
theoretical knowledge to the practical business work. However, the widening gap
between the engineering education and the real-world has always been existing.
The CDIO (Conceive, Design, Implement and Operate) method is aiming at filling
the gap and enables students to take the initiative, practical, integrated way
to learn engineering courses based on the complete product lifecycle. The
students can study from the initial concept, product development,
manufacturing, until the sale and service process. In order to practice the
concept of CDIO, a collaboration-based practice teaching mode is presented in
this paper. The architecture of web-based practice teaching in collaboration
with enterprise and a construction scheme of web-based teaching management
system for engineering training are proposed. System architecture and system
functions are given. Finally, the implementation and the application examples
of this system are described. Keywords: engineering training; collaboration-based mode; web-based management
platform | |||
| Overdrive Suppression Design Pattern | | BIBAK | Full-Text | 103-110 | |
| Marwan Batrouni | |||
| Design patterns are architectural artifacts that are the results of
solutions that have been applied successfully and repeatedly to a set of
problems. In computer science design patterns play a crucial role in maximizing
code reuse and architectural best practices.
The overdrive suppression design pattern outlined in this paper targets mainly the computing, although it can be applied to any field where simple robustness through managed redundancy is paramount. Keywords: Design patterns; robustness; redundant; cloud computing; resilient; heart;
ODS (overdrive Suppression) | |||
| RE-Tutor: An Augmented Reality Based Platform for Distributed Collaborative Learning | | BIBAK | Full-Text | 111-117 | |
| Weidong Huang; Xiaodi Huang; Wei Lai | |||
| Many ICT technologies have been used to develop systems to support
collaborative learning. These systems are mainly developed to support
interaction between users when they collaborate with each other to learn
knowledge and solve a problem. However, there are many situations for
collaborative learning in which geographically distributed participants play
distinct roles and work together to produce or manipulate physical objects. For
example, a teacher in a major city teaches a disabled child at a remote area; a
remote tutor provides a tutoring service to a local student at home to finish
an art or handcraft assignment; or more often, a teacher guides a class of
students online through a series of activities in which physical objects are
involved such as drawing a picture using different pens. In these scenarios,
traditional learning systems may be limited since students not only need to see
and hear their teacher, but also need to interact with their teacher to use or
manipulate physical objects. In this paper, we introduce a novel system
platform called RE-Tutor that is proposed to support this category of
collaborative learning scenarios. In this system, while physically distributed,
a teacher is enabled to talk to his students, see what the students are working
on, and provide guidance information using hand gestures or annotations which
are often needed for physical tasks. Keywords: remote guidance; collaborative learning; augmented reality; hand gestures | |||
| Designing Cooperative Social Applications in Healthcare by Means of SocialBPM | | BIBAK | Full-Text | 118-125 | |
| Fernando Sánchez-Figueroa; Juan Carlos Preciado; José María Conejero; Roberto Rodríguez-Echeverría | |||
| The appearance of the so-called first-generation of social tools such as
blogs, wikis or CMS made possible for the Web to be used as an interaction
arena for healthcare purposes. Currently, this interaction has been improved by
means of different social networks such as PatientsLikeMe, HealthVault or
Inspire, just to cite a few. The business world, not to be left behind, is
rapidly catching up with this change in interpersonal communications, allowing
third parties (clients, patients, colleagues, providers, etc) to participate in
the process execution by performing social operations such as voting,
commenting, ranking, sharing, following, inviting, etc. However, this
integration is being done in an ad-hoc manner, not existing understandable
notations to include social interactions in Business Process Modelling (BPM).
Moreover, the user has to face several social applications to perform simple
social tasks, i.e., scheduling a meeting and sharing a diagnostic must be done
through different applications. While the former problem affects the design
phase, the latter affects the execution phase. In this paper we present a case
study in order to illustrate how the use of SocialBPM solves these problems,
where SocialBPM denotes to the combination of social technologies and BPM.
SocialBPM eases both, the cooperative design of social processes, and their
cooperative execution. Keywords: Web 2.0; Social technologies; BPMN; Social BPM; Health social networks | |||
| An Augmented Reality Setup from Fusionated Visualization Artifacts | | BIBAK | Full-Text | 126-133 | |
| Maik Mory; Martin Wiesner; Andreas Wünsch; Sandor Vajna | |||
| Merging three-dimensional visualization artifacts interactively from
arbitrary sources is a promising approach to support interoperability in
engineers' software landscape. Based on previous work, which yielded a
framework for asynchronous processing of OpenGL, we present a component, which
combines three-dimensional visualizations from OpenGL-streams into one
three-dimensional visualization space in real-time. In our current setup, CAX
software is integrated with pointcloud rendering from an RGBD-camera to
resemble an orthoscopic virtual mirror, which combines a user's reality in
front of the mirror with the CAX software's virtual reality inside the mirror.
We present results, how the tested augmented reality setup fosters cooperative
decisions in product development and engineering. Keywords: cooperative decision; mixed reality; three-dimensional visualization;
distributed system; interoperability | |||
| Messy Work in Virtual Worlds: Exploring Discovery and Synthesis in Virtual Teams | | BIBAK | Full-Text | 134-142 | |
| Carrie Sturts Dossick | |||
| The challenges of engineering team collaboration -- establishing trust,
fostering productive informal communication, cultivating knowledge exchange --
are often exacerbated in virtual teams by geographical separation as well as
team members' cultural and linguistic differences. Researchers have observed
that powerful collaboration in collocated teams is supported by shared
visualizations with which the team engages in informal, flexible and active
ways. In studying virtual team interactions in a virtual world known as the
CyberGRID, we see that just as with AEC collocated teams, shared visualizations
were instrumental for the teams as they define, understand, and generate
knowledge when working on interrelated tasks. Emerging from this analysis is an
empirically supported theory that while avatar-model interaction supports
mutual discovery, more messy interactions of brainstorming, knowledge exchange
and synthesis requires flexible, active, and informal shared visualizations. Keywords: Global Virtual Teams; Collaboration; Communication; Visualization;
Information Technology; Building Information Modeling; Virtual Worlds | |||
| A Cooperative System of GIS and BIM for Traffic Planning: A High-Rise Building Case Study | | BIBA | Full-Text | 143-150 | |
| Jun Wang; Lei Hou; Heap-Yih Chong; Xin Liu; Xiangyu Wang; Jun Guo | |||
| Design of localized traffic is a decision-making process for producing the viable solutions of where the parking lots, roads, entrances, exits, and the associated facilities should be built. In a traditional design case, a planner may take into account numerous factors, such as economy, constructability, geological impacts, layout constraints, connection of localized and external traffic, etc., and the process is mainly relied on a master plan and two-dimensional design drawings. Such pattern has certain limitations as these important factors can hardly be overall considered at the same time. It is promising to cope with the issues using a cooperative system where Geographic Information System (GIS) incorporates with Building Information Modelling (BIM). The research aims to optimize and evaluate the site layout for effective traffic planning based on the integrative approach of BIM and GIS. From the case study, the paper also demonstrates: 1) the approach of analyzing the statistical data to represent the existing traffic condition around the building via GIS and 2) the approach of making use of the advanced vehicle simulation models to optimizing the localized traffic facilities design, considering the possible impact of the localized traffic to the ambient traffic. Referring to the cooperative system, the bottlenecks of the initial design of parking facilities are identified, and the corresponding improvements are suggested. | |||
| An Environment to Foster Scientific Collaborations | | BIBAK | Full-Text | 151-158 | |
| Tatiana P. V. Alves; Marcos R. S. Borges; Adriana S. Vivacqua | |||
| Collaboration is an integral part of modern scientific research. It is hard
to imagine any modern scientific endeavor that does not involve a group of
people. However, collaboration is frequently constrained to close partners or
proximal groups. Finding new potential partners with whom to exchange ideas is
an important step in establishing new working groups. We propose to use
automated system to recommend potential collaborators, and present a system for
this purpose. One of the problems involved is establishing criteria to select
these potential partners. We address this issue by (1) automatically
constructing users profiles from publicly available data to establish areas of
expertise and (2) employing an analysis of users' networks to select partners
with the potential for fruitful relationships. Keywords: collaboration; social network analysis; group recommendation | |||
| Supporting Collaborative Decision in Architectural Design with Synchronous Collocated 4D Simulation and Natural User Interactions | | BIBAK | Full-Text | 159-162 | |
| Conrad Boton; Gilles Halin; Sylvain Kubicki | |||
| The work presented in this paper is part of a more comprehensive one which
aims to propose appropriate natural user interactions to support collaborative
decision making in synchronous 4D simulation. It presents the issue and
previous works on natural user interfaces in 4D simulation. It also introduces
a first prototype and a 4D case study from a real construction site. Keywords: CSCW; 4D simulation; Human-Computer Interfaces; Natural User Interaction;
Decision support; Architecture; Engineering and Construction; Collaborative 4D | |||
| Collaborative Annotation of Multimedia Resources | | BIBAK | Full-Text | 163-166 | |
| Pierrick Bruneau; Mickaël Stefas; Mateusz Budnik; Johann Poignant; Hervé Bredin; Thomas Tamisier; Benoît Otjacques | |||
| Reference multimedia corpora for use in automated indexing algorithms
require lots of manual work. The Camomile project advocates the joint progress
of automated annotation methods and tools for improving the benchmark
resources. This paper shows some work in progress in interactive visualization
of annotations, and perspectives in harnessing the collaboration between manual
annotators, algorithm designers, and benchmark administrators. Keywords: multimedia annotation; interactive visualization; collaborative annotation | |||
| Collaborative Visual Environments for Performing Arts | | BIBAK | Full-Text | 167-170 | |
| Sven Ubik; Jiri Navratil; Jiri Melnikov; Boncheol Goo; David Cuenca; Ivani Santana | |||
| Our objective was to verify whether modern computer network and audio-visual
technologies can enable collaborative work of performing artists over large
distances. Such collaborative environments would bring new opportunities for
artists, audience and engineers. We describe our experience obtained during a
three-continent cyber performance done during the 36th APAN meeting. Keywords: cyber performance performing arts; remote collaboration; cultural exchange;
e-learning | |||
| Synchronous Mobile Learning System to Cope with Slow Network Connection | | BIBAK | Full-Text | 171-174 | |
| Jang Ho Lee | |||
| The network connection of a mobile device can get slow temporarily due to
its high mobility. This could make synchronous mobile learning system unable to
receive the video and audio from the server, thereby making students find
difficulty understanding the real-time lecture on their mobile devices. Thus,
we propose a synchronous mobile learning system that enables students to follow
the ongoing lecture in such temporary slow network connection. The system
allows students to watch an instructor and slide with annotation in real time.
The students can send questions to an instructor and discuss together in text.
To make students not to miss the lecture while the video and audio can't be
delivered due to low-speed network connection, live speech text is supported by
converting the instructor's speech to text in real time. Keywords: mobile learning; distance learning; synchronous collaboration; slow
connection; live speech text | |||
| Data Intellection for Wiser Online Sales the Optosa Approach | | BIBAK | Full-Text | 175-178 | |
| Thomas Tamisier; Gero Vierke; Helmut Rieder; Yoann Didry; Olivier Parisot | |||
| This article presents the basic concepts of Optosa, a visual analytics
solution for the optimization of online sales, designed to support manufactures
in all phases of the online sales process from the product specification to the
price fixing and more. Optosa combines a data processing module that builds and
constantly updates operational knowledge related to sales positioning with a
decision assistant that uses relevant aspects of the knowledge for helping the
tasks of the different teams along the integrated chain of the sales. After
reviewing the challenges of the approach, we discuss the first significant
experiments with Optosa on some formalized use-cases. Keywords: Visual Data Mining; Knowledge-based Support; Integrated chain | |||
| Planning for the Microclimate of Urban Spaces: Notes from a Multi-agent Approach | | BIBAK | Full-Text | 179-182 | |
| Dino Borri; Domenico Camarda; Irene Pluchinotta | |||
| Agents, agent-oriented modelling and multi-agent systems (MAS) introduce new
and unconventional concepts in computer science. These elements are able to
sparkle new modelling perspectives in behavioural knowledge and in
environmental domain, where interactions between humans and natural/artificial
agents are not standardized. MAS are considered as "societies of agents"
interacting to coordinate their behaviour and often cooperate to achieve some
collective goal. In order to show the involved agents and their roles in a
quasi-hierarchical scale of interaction behaviours, we propose the setting up
of schemes aimed at simplifying the behaviors and the interactions between
human and non-human agents in indoor spaces for urban microclimate management. Keywords: Urban microclimate planning; Multiple agents; Behavioural knowledge;
Cooperative models; Multi agent System; Interactions | |||
| Perception of Space and Time in a Created Environment | | BIBAK | Full-Text | 183-190 | |
| Ursula Kirschner | |||
| A built environment is ambiguous, because space can be understood in a
Euclidean way, symbolically, socially as well as architecturally,
image-scientifically or psychologically. This conference paper is dedicated to
learning about the correlations of these perceptions in a wider sense with
means to disclose time-dependent and functional layers related dynamically to
the space.
We have chosen our campus for the case study, which was a garrison beginning in the 1930s and served different armies before it was converted to a university in the 1990s. Our intention is to offer social, informative benefits and knowledge about the campus, which in turn contributes to participatory development of the campus and hence to identification with the place as well as with collective memory, for everyone on site. We are developing an app that facilitates innovative space perception. The digital tools in the app consist of geocaching, an interactive map, communication tools and various multimedia information components. This so-called "geo-knowledge-caching" shall be used to expand a university campus to a complex knowledge construct with buildings in which knowledge is imparted and a library that houses knowledge and a place for discussion, encounters and leisure activities. Keywords: Perception of space; app; geocaching; multimedia exhibition | |||
| Studying the Effect of Delay on Group Performance in Collaborative Editing | | BIBAK | Full-Text | 191-198 | |
| Claudia-Lavinia Ignat; Gérald Oster; Meagan Newman; Valerie Shalin; François Charoy | |||
| Real-time collaborative editing systems such as Google Drive are
increasingly common. However, no prior work questioned the maximum acceptable
delay for real-time collaboration or the efficacy of compensatory strategies.
In this study we examine the performance consequences of simulated network
delay on an artificial collaborative document editing task with a time constant
and metrics for process and outcome suitable for experimental study. Results
suggest that strategy influences task outcome at least as much as delay in the
distribution of work in progress. However, a paradoxical interaction between
delay and strategy emerged, in which the more generally effective, but highly
coupled strategy was also more sensitive to delay. Keywords: Collaborative editing; groupware; delay; usability measurement | |||
| Collaborative Web Platform for UNIX-Based Big Data Processing | | BIBAK | Full-Text | 199-202 | |
| Omar Castro; Hugo Sereno Ferreira; Tiago Boldt Sousa | |||
| UNIX-based operative systems were always empowered by scriptable shell
interfaces, with a core set of powerful tools to perform manipulation over
files and data streams. However those tools can be difficult to manage at the
hands of a non-expert programmer.
This paper proposes the creation of a Collaborative Web Platform to easily create workflows using common UNIX command line tools for processing Big Data through a collaborative web GUI. Keywords: Big Data; UNIX Shell; End-User Programming; Cooperative Programming | |||
| Efficient Group Discussion with Digital Affinity Diagram System (DADS) | | BIBAK | Full-Text | 203-213 | |
| William Widjaja; Keito Yoshii; Makoto Takahashi | |||
| Collaborative discussion is an integral part of exchanging ideas and solving
important problems. However, traditional approaches to group discussion have
used analog tools that create problems for collaborative contributions. Many
researchers have tried to use technology to overcome these limitations, but
current digital collaboration systems isolate users from each other and do not
promote efficient idea creation or allow users space to support ideas with
evidence. The Digital Affinity Diagram System (DADS) presents a solution that
encourages better group discussion by implementing three features: 1)
Separation of private and common areas during initial phase to allow ideas to
mature without initial critique 2) Intuitive input and navigational design to
help users create, edit, view and manipulate generated ideas, and 3)
Multi-platform synchronization technology to create real-time visual feedback
on the discussion accessible to all users. DADS' dual-monitor setup uses
real-time network socket infrastructure so that multiple users can interact
with each other under one discussion environment. We capitalize on multi-touch
hardware to create a natural, deep and structured collaborative environment. Keywords: Human Factors; Design; Measurement; CSCW; Brainstorming; Affinity-Diagram;
Idea-generation; Collaboration | |||
| Integration of Product Conceptual Design Synthesis into a Computer-Aided Design System | | BIBAK | Full-Text | 214-221 | |
| Alexis Álvarez Cabrales; Enrique E. Zayas; Roberto Pérez; Rolando E. Simeón; Carles Riba; Salvador Cardona | |||
| Commercial Computer-Aided Design systems have been mainly focused in give
support to the process of capturing and representing geometric shapes and
incorporating technological information. Conversely, few utilities in these
systems are present to facilitate decision making in the early stages of the
design process, such as the capture, modeling and conceptual design synthesis
of solutions. Typical tasks of the conceptual design process in mechanical
design are intended for applications stand-alone or are based on the heuristic
knowledge of the designer. Such approaches are non-interoperable with the
commercial computer-aided design systems which results in non-continuous
information in the design process. This study addresses this subject and
proposes a method to improve the integration of product conceptual design
synthesis into a Computer Aided Design system. To validate the feasibility of
the approach implemented, a prototype application based on a Computer Aided
Design system was developed and a study case is presented. Keywords: Conceptual design; design synthesis; CAD; collaborative | |||
| Implementation Challenges of Annotated 3D Models in Collaborative Design Environments | | BIBAK | Full-Text | 222-229 | |
| Jorge Camba; Manuel Contero; Gustavo Salvador-Herranz | |||
| Recent studies in the area of collaborative design have proposed the use of
3D annotations as a tool to make design information explicitly available within
the 3D model, so that different stakeholders can share information throughout
the product lifecycle. Annotation practices defined by the latest digital
definition standards have formalized the presentation of information and
facilitated the implementation of annotation tools in CAD systems. In this
paper, we review the latest studies in annotation methods and technologies and
explore their expected benefits in the context of collaborative design. Next,
we analyze the implementation challenges of different annotation approaches,
focusing specifically on design intent annotations. An analysis of the
literature suggests that the use of annotations has a positive effect on
collaborative design communication as long as proper implementation practices,
tools, and user interaction mechanisms are in place. Keywords: annotated 3D models; collaborative design; design communication | |||
| Metamorphic Controller for Collaborative Design of an Optimal Structure of the Control System | | BIBAK | Full-Text | 230-237 | |
| Tomasz Klopot; Dariusz Choinski; Piotr Skupin; Daniel Szczypka | |||
| When designing a control system, the customer specifies some control
requirements and the expert provides the parameterized optimal controller. A
change of the control algorithm to a more advanced one may lead to a better
performance of the closed loop system. On the other hand, implementation and
parameterization of the advanced controllers require more extensive knowledge.
A possible solution is a group of cooperating experts that are able to
determine the most suitable control algorithm, depending on the customer's
requirements. However, in practice, hiring more experts is an expensive
approach. Hence, the performance of majority of industrial systems is not
optimal. The paper presents the metamorphic controller with extended
functionality for selection of an optimal control algorithm (including advanced
controllers). As a result, only one expert, cooperating with the customer, is
sufficient to ensure the optimal system performance. The proposed solution has
been implemented and tested on the industrial controller. Keywords: Metamorphic controller; collaborative design; programmable logic controller
(PLC) | |||
| BIM-Enabled Design Collaboration for Complex Building | | BIBAK | Full-Text | 238-244 | |
| Jun Wang; Heap-Yih Chong; Wenchi Shou; Xiangyu Wang; Jun Guo | |||
| Fragmented practices are common in construction industry due to the
traditional procurement system and poor adoption of advanced technologies and
approaches for construction projects. Building Information Modelling is an
emerging technology and able to transform the conventional practice. It can
create a collaborative working platform for a project, particularly during the
design stage. Therefore, the research aims to improve the conventional design
practices by incorporating the BIM technology in addressing the design
collaboration for a complex building. A case study was adopted from a complex
building in Beijing, China. The data were collected and observed during the
design process. A framework was developed to explain the design collaboration
process. The findings show the duration of the design has significantly
shortened and also improved the design performance in the project. The research
renders an important insight into promoting BIM-based design collaboration in
the construction industry. Keywords: Fragmentation; Collaboration; BIM; Design | |||
| The Impact of Expertise on the Capture of Sketched Intentions: Perspectives for Remote Cooperative Design | | BIBAK | Full-Text | 245-252 | |
| Jennifer Sutera; Maria C. Yang; Catherine Elsen | |||
| The paper describes the way expertise and field-knowledge can impact the
transfer of graphical intentions during architectural cooperative design. The
analysis of 28 controlled experiments reveals what matters in transmitting
architectural intents and more specifically underlines how novices' intuitive,
deductive processes based on previous and embodied experiences interestingly
complement experts' knowledge of the architectural field and its semantics. The
results directly inform how we, as researchers, designers and engineers, should
take advantage of both novices' and experts' strategies to develop tools,
methods or interfaces to support next generation cooperative design. Keywords: Cooperative design in architecture; transfer of design intents; expertise | |||
| Use of Tangible Marks with Optical Frame Interactive Surfaces in Collaborative Design Scenarios Based on Blended Spaces | | BIBAK | Full-Text | 253-260 | |
| Gustavo Salvador-Herranz; Manuel Contero; Jorge Camba | |||
| In this paper, we present new methods of interaction with multi-touch
surfaces implemented with optical frames by using tangible elements. Since
interactive surfaces typically allow simultaneous detection of a large number
of touch points, we propose the use of physical objects (which can be 3D
printed) to reproduce different touch patterns, similar to using finger
gestures on the table. These patterns are identified and recognized by our
system and used to calculate the position and orientation of the mark on the
surface. We propose the use of these tangible elements as a method to manage
information locally in an interactive surface and also to exchange information
between different surfaces to support collaborative design work. Keywords: human-computer interaction; natural interfaces; blended spaces; interactive
surfaces; tabletops | |||
| A Creative Approach to Conflict Detection in Web-Based 3D Cooperative Design | | BIBAK | Full-Text | 261-268 | |
| Xiaoming Ma; Hongming Cai; Lihong Jiang | |||
| In the process of web-based 3D cooperative design, it is difficult to avoid
concurrent design conflicts among designers. B/S structure requires that most
computational work must be done in service side, so conventional solution to
desktop-based cooperative system is not well applicable to web-based one.
Therefore, during the conflict detection process, when to make conflict
detection, conflict resolution and broadcast result operations to all
cooperative sites become a key problem. In this article we propose a novel
web-based 3D cooperative design framework and a concrete implementation to
conflict detection.
By this framework we can achieve automatic operation submission, real-time conflict detection based on dynamically adjustable time, and automatic conflict resolution with designers' customization, which is much different from conventional solutions that require frequent participation of designers to submit changes and resolve conflicts. And through tests and analysis our solution shows good performance, scalability and design interactivity. Keywords: Co-design; design interactivity; cooperative; conflict detection; web-based
3D | |||
| Matching Workflow Contexts for Collaborative New Product Development Task Knowledge Provisioning | | BIBAK | Full-Text | 269-276 | |
| Tingyu Liu; Huifen Wang | |||
| The variety of product types and specifications make new product development
(NPD) tasks tough work in discrete manufacturing enterprises, which makes it a
common strategy to refer to similar outcomes (e.g. the product drawings, work
instructions, etc.) of former tasks during NPD processes. To improve the
efficiency of discovering similar historical outcomes, this paper presents a
novel approach to measure the similarity between task execution contexts in
process-aware information systems, and exploit it for runtime task knowledge
recommendation. In our framework, the measurement of similarity is preceded by
1) modeling the task context with ontology theory, 2) using the ontology
matching algorithms to evaluate the similarities between the corresponding
context ontology entities of different tasks instances. The TD-IDF is then
utilized to compute the context cohesion between the user's current task and
historical tasks, and the tasks with the highest similarity will be recommended
to the task executors, along with their outcomes. Comparative evaluation is
performed using TF-IDF, Levenshtein and Affine Gaps, and results demonstrate
that the proposed approach achieves good precision and recall, and is efficient
in task knowledge recommendation. Keywords: context-aware workflow; collaborative knowledge management; ontology
matching; TF-IDF | |||
| A Collaborative Manufacturing Execution System Oriented to Discrete Manufacturing Enterprises | | BIBAK | Full-Text | 277-285 | |
| Huifen Wang; Linyan Liu; Yizheng Fei; Tingting Liu | |||
| Collaborative manufacturing execution system (c-MES) is very important for
manufacturing enterprises to realize informatization under the networked
manufacturing environment. Production characteristics, typical production flow
and collaborative management requirements of multi-workshop production in
discrete manufacturing enterprise is analyzed. An architecture oriented to
discrete manufacturing enterprises of c-MES is put forward. Main functions of
c-MES and key technologies to realize c-MES are analyzed. Finally some system
interfaces are introduced by a case study. Keywords: Networked Manufacturing; c-MES; Architecture | |||
| A Steerable GA Method for Block Erection of Shipbuilding in Virtual Environment | | BIBAK | Full-Text | 286-293 | |
| Jinsong Bao; Qian Wang; Aiming Xu | |||
| Solving the dispatch and optimization of block erection of shipbuilding is a
complex problem, especially when the spatial constraints are considered. The
block erection scheduling problem can be defined as an identical parallel
machine scheduling problem with precedence constraints and machine eligibility
(PCME) restrictions, as well as limited layout space. An enhanced genetic
algorithm (GA) is proposed to find the near-optimal solution, and a few lower
bounds. Also, the percentage of the reduced makespan is defined to evaluate the
performance of the proposed algorithm. The proposed GA method of steering
optimization produces quicker and lesser values of makespan than the RANDOM
heuristic algorithm for the collected real instances. It not only allows users
to steer a computing towards effective direction and leverages computing, but
also is guided by the intelligence of human to get a global view when the users
are in immersive environment. The dispatch of block erection to the crane is
modeled into a parallel machine scheduling problem with spatial constraints.
Meanwhile a 3D layout of block erection is modeled with real size, and an
interactive GA optimization is developed to solve this problem with the
objective of minimizing makespan. Keywords: Steerable Genetic algorithm; Scheduling; Parallel machines; Shipbuilding;
Virtual environment | |||
| Service Evaluation-Based Resource Selection in Cloud Manufacturing | | BIBAK | Full-Text | 294-302 | |
| Yan-Wei Zhao; Li-Nan Zhu | |||
| With the development of cloud computing, cloud manufacturing has been gained
more and more attention. According to the peculiarity of cloud manufacturing,
the resource designated as manufacturing service is always massive, complex and
heterogeneous, and the high degree of user participation, and user diversity
are also the main features. This paper presents a method of resource selection
based on service evaluation, which consists of predictive evaluation and
recommended evaluation. In detail, predictive evaluation is based on user's
historical service evaluations which may have different influence according to
the experience in different time. Recommended evaluation is given by the
recommenders who are generated by 2-step selection and have different
recommended weight according to their similarities and objectivities. Finally,
experiment results show that the proposed algorithm has better performance. Keywords: cloud manufacturing; resource selection; service evaluation | |||
| SaaS Approach to the Process Control Teaching and Engineering | | BIBAK | Full-Text | 303-310 | |
| Grzegorz Polaków; Witold Nocon | |||
| In light of the rapid development of network technology, the general concept
of software requires redefinition. New opportunities provided by broadband
networking, distributed processing, and available network resources i.e. what
is widely called a cloud, makes the classic software architecture obsolete. In
this paper it is proposed to apply the web service oriented approach and
cloud-related techniques to the tasks of the control algorithms design,
engineering and training. Basing on the literature, the necessary concepts are
defined and the limitations specific to the considered domain are identified.
Next, with the two specific applications as the examples, it is described how
to apply the new approach to the classic tasks, in order to turn the classic
software into the cloud-based software. Keywords: SaaS; process control; control systems engineering; cloud computing; web
services | |||