[1]
Design Solutions for Interactive Multi-video Multimedia Learning Objects
Technology-Enhanced Learning
/
Viel, Caio C.
/
Rodrigues, Kamila R. H.
/
Teixeira, Cesar A. C.
/
Pimentel, Maria G. C.
LCT 2015: 2nd International Conference on Learning and Collaboration
Technologies
2015-08-02
p.160-171
Keywords: Multimedia learning object; Design solution; Design rationale; Capture and
access
© Copyright 2015 Springer International Publishing Switzerland
Summary: The increasing popularity of distance education courses, including Massive
Open Online Courses (MOOCs), creates a demand for the production of quality
video-based educational material. In order to reduce the costs involved in the
production of video lectures, several researchers have investigated
alternatives for capture and access systems which automatically capture lecture
contents to generate corresponding video lectures. We also developed a system
for this purpose; however our system generates Interactive Multimedia Learning
Objects (iMLO) instead of a traditional (linear) video lecture. The iMLO's
features and its interface are important issues for the development of the
capture and access system. Interface aspects, such as which are proper ways to
present content for users and which navigation facilities are more useful, are
distinctive requirements and may impact the user experience. In this paper we
present a novel design for the iMLOs which results from an evolution process
supported by feedbacks from the main stakeholders: students and lecturers. The
feedbacks have been acquired by analyzing the interaction of students with the
iMLOs in real scenarios. Based on these feedbacks, we have identified several
design implications. We present the proposed interfaces and proof-of-concepts
implementations and report lessons learned during the development of the final
design solution, which can guide other designers in the conception of new
iMLOs. The whole process is documented by means of Design Rationale.
[2]
Filteryedping: A Dwell-Free Eye Typing Technique
Interactivity
/
Pedrosa, Diogo
/
Pimentel, Maria da Graça
/
Truong, Khai N.
Extended Abstracts of the ACM CHI'15 Conference on Human Factors in
Computing Systems
2015-04-18
v.2
p.303-306
© Copyright 2015 ACM
Summary: The ability to type using eye gaze only is extremely important for
individuals with a severe motor disability. To eye type, the user currently
must sequentially gaze at letters in a virtual keyboard and dwell on each
desired letter for a specific amount of time to input that key. Dwell-based eye
typing has two possible drawbacks: unwanted input if the dwell threshold is too
short or slow typing rates if the threshold is long. We demonstrate an eye
typing technique, which does not require the user to dwell on the letters that
she wants to input. Our method automatically filters out unwanted letters from
the sequence of letters gazed at while typing a word. It ranks candidate words
based on their length and frequency and presents them to the user for
confirmation. Spell correction and support for typing words not in the corpus
are also included.
[3]
Filteryedping: Design Challenges and User Performance of Dwell-Free Eye
Typing
/
Pedrosa, Diogo
/
Pimentel, Maria Da Graça
/
Wright, Amy
/
Truong, Khai N.
ACM Transactions on Accessible Computing
2015-03
v.6
n.1
p.3
© Copyright 2015 ACM
Summary: The ability to use the movements of the eyes to write is extremely important
for individuals with a severe motor disability. With eye typing, a virtual
keyboard is shown on the screen and the user enters text by gazing at the
intended keys one at a time. With dwell-based eye typing, a key is selected by
continuously gazing at it for a specific amount of time. However, this approach
has two possible drawbacks: unwanted selections and slow typing rates. In this
study, we propose a dwell-free eye typing technique that filters out
unintentionally selected letters from the sequence of letters looked at by the
user. It ranks possible words based on their length and frequency of use and
suggests them to the user. We evaluated Filteryedping with a series of
experiments. First, we recruited participants without disabilities to compare
it with another potential dwell-free technique and with a dwell-based eye
typing interface. The results indicate it is a fast technique that allows an
average of 15.95 words per minute after 100min of typing. Then, we improved the
technique through iterative design and evaluation with individuals who have
severe motor disabilities. This phase helped to identify and create parameters
that allow the technique to be adapted to different users.
[4]
ActiveTimesheets: extending web-based multimedia documents with dynamic
modification and reuse features
Modeling and representation
/
Martins, Diogo S.
/
Pimentel, Maria da Graça C.
Proceedings of the 2014 ACM Symposium on Document Engineering
2014-09-16
p.3-12
© Copyright 2014 ACM
Summary: Methods for authoring Web-based multimedia presentations have advanced
considerably with the improvements provided by HTML5. However, authors of these
multimedia presentations still lack expressive, declarative language constructs
to encode synchronized multimedia scenarios. The SMIL Timesheets language is a
serious contender to tackle this problem as it provides alternatives to
associate a declarative timing specification to an HTML document. However, in
its current form, the SMIL Timesheets language does not meet important
requirements observed in Web-based multimedia applications. In order to tackle
this problem, this paper presents the ActiveTimesheets engine, which extends
the SMIL Timesheets language by providing dynamic client-side modifications,
temporal linking and reuse of temporal constructs in fine granularity. All
these contributions are demonstrated in the context of a Web-based annotation
and extension tool for multimedia documents.
[5]
MoViA: a mobile video annotation tool
Multimedia I
/
Cunha, Bruna C. R.
/
Neto, Olibário J. Machado
/
Pimentel, Maria da Graça
Proceedings of the 2013 ACM Symposium on Document Engineering
2013-09-10
p.219-222
© Copyright 2013 ACM
Summary: The user interaction with mobile devices has dramatically improved over the
last years. Increasingly we rely on smartphones and tablets for a wider range
of tasks. Modern mobile devices enable users to access, manage and transmit
multiple types of media in an easy, convenient and portable way. In this
context, the playback of videos on mobile devices becomes a usual activity.
Many works regarding video annotations have been made, but few are concerned
with the mobile scenario. The ability to add annotations and to share them with
others is a content enriching process which can improve activities from
educational to entertainment purposes. In this paper, we present an intuitive
tool that allows users to perform temporal video annotations on mobile devices.
Using conventional tablets and smartphones equipped with the Android operating
system, text, audio and digital ink annotations can be made on any video. It is
possible to share text annotations with other users and play multiple
annotations at the same time. The several display sizes and the possibility to
switch between portrait and landscape mode have also been considered.
[6]
Go beyond boundaries of iTV applications
Multimedia II
/
Viel, Caio Cesar
/
Melo, Erick Lazaro
/
Pimentel, Maria da Graça Campos
/
Teixeira, Cesar Augusto Camillo
Proceedings of the 2013 ACM Symposium on Document Engineering
2013-09-10
p.263-272
© Copyright 2013 ACM
Summary: The development of multimedia applications that require the manipulation and
the synchronization of multiple media and the handling of different types of
user interactions usually requires specialized knowledge in imperative
languages. Declarative languages have been proposed in order to make this task
easier, especially when applications are restricted to certain classes, as it
is the case of Interactive TV applications in which user interactions are
restricted to a few simple models. However, those simple models may be too
simple when documents are reused in other platforms: for instance, when
watching a video most web users expect an interactive timeline to be available
-- which is not the case in interactive TV videos. This paper presents a
component-based approach to the enrichment of declarative languages for
multimedia so that desirable user-media interactions are made possible at the
same time that the original ease of authoring is maintained. We detail the
components and present a corresponding proof-of-concept prototype. We also
discuss design decisions associated with the development of the components,
which should be useful in further extensions.
[7]
Structuring the discourse on social networks for learning: Case studies on
blogs and microblogs
/
Marques, Aline M.
/
Krejci, Rafael
/
Siqueira, Sean W. M.
/
Pimentel, Mariano
/
Braz, Maria Helena L. B.
Computers in Human Behavior
2013-03
v.29
n.2
p.395-400
Keywords: Online social networks
Keywords: Blog
Keywords: Microblog
Keywords: Collaborative learning
Keywords: Communication
Keywords: Message structuring
© Copyright 2013 Elsevier Ltd.
Summary: Nowadays social networks have a prominent function in human communication.
In addition, their use in the context of formal learning can contribute to
increase student's interactions. These interactions can be better supported
with the right structure for the messages. This paper presents an investigation
on the structure of messages on blogs and microblogs, two different categories
of social networks. Usually, blogs are author-based (also called content-based
or push-based) social networks while microblogs are reader-based (also called
contact-based or pull-based) social networks. This categorization of social
networks is explained and some characteristics of messages' structuring on such
social networks are described. Structuring messages is investigated in both
categories of social networks in case studies on a collaborative learning
context. The results show the importance of using both categories of social
networks in learning activities and also provide interesting results on message
structuring.
[8]
Multimedia document processing in an HTML5 world
Workshops
/
Bulterman, Dick C. A.
/
Guimarães, Rodrigo Laiola
/
Cesar, Pablo
/
Munson, Ethan
/
Pimentel, Maria da Graça Campos
Proceedings of the 2011 ACM Symposium on Document Engineering
2011-09-19
p.273-274
© Copyright 2011 ACM
Summary: The evolution in media support within W3C standards has led to the
development of HMTL5. HTML5 provides extensive support for
audio/video/timed-text within an interoperable browser context.
This workshop examines the impact of HTML5 on research and systems support
for multimedia documents. We will consider issues such as extensibility,
adaptivity and maintenance, and will discuss the future needs for Multimedia in
a Web context.
[9]
Documenting social networks
Workshops
/
Pimentel, Maria da Graça Campos
Proceedings of the 2011 ACM Symposium on Document Engineering
2011-09-19
p.277-280
© Copyright 2011 ACM
Summary: The many social networks available on the Web offer users several facilities
involving the sharing of media as a way of allow communication. This workshop
will discuss the role of document engineering in social networks, targeting at
issues such as: what documents can we create by analyzing the available
information; what documents users manipulate/add/refer to in social networks;
what are the roles of authors and readers.
[10]
The Link-Offset-Scale Mechanism for Improving the Usability of Touch Screen
Displays on the Web
Touch Interfaces
/
Watanabe, Willian Massami
/
Fortes, Renata Pontin de Mattos
/
Pimentel, Maria da Graça Campos
Proceedings of IFIP INTERACT'11: Human-Computer Interaction
2011-09-05
v.3
p.356-372
Keywords: Touch-screen displays; pervasive computing; ubiquitous computing; usability
in touch-screen devices; web usability
© Copyright 2011 IFIP
Summary: Touch-screen interfaces have become a widespread-input-device tendency for
computer systems. In this context, many studies investigate how to improve
general usability for touch-screen devices. These studies consider different
interaction design features that improve the usability for touch sensitive
surfaces, considering the low accuracy it presents, given obstacles such as the
"fat finger problem", low-perception of pointing mechanisms, difficulties in
the selection of small objects, among others. This work aims at presenting the
link-offset-scale touch interaction mechanism for improving the usability for
touch-screen devices. The link-offset-scale mechanism makes use of
web-application-structure meta-data (identifying links) to provide feedback
information about the selection of links in touch interfaces, while the surface
is touched by the user. The link-offset-scale mechanism's primary goal is to
reduce the number of errors that users commit while interacting with
touch-screen devices in the Web.
[11]
An approach based on multiple text input modes for interactive digital TV
applications
User interface and design of communication
/
Vega-Oliveros, Didier Augusto
/
Pimentel, Maria da Graça Campos
/
Pedrosa, Diogo de Carvalho
/
Fortes, Renata Pontin de Mattos
ACM 28th International Conference on Design of Communication
2010-09-26
p.191-198
© Copyright 2010 ACM
Summary: The development of interactive digital TV applications is hindered by the
user-interaction options allowed when traditional remote controls are used. In
this work, we describe the model of a software component that allows text entry
in interactive TV applications based on an interface with multiple input modes
-- the component offers a virtual keyboard mode, a cell keypad mode, and a
speech mode. We discuss our considerations with respect to the design,
development and evaluation of a prototype corresponding to our model, built
according to the user-centered design methodology. After conducting a research
on existing text input methods in television systems, we interviewed four
experts in the interactive TV domain. We also applied 153 questionnaires to TV
users, with the aim of gathering a user profile of users who make use of text
entry mechanisms. During the development of the prototype, we conducted
usability tests using the think aloud protocol, and usability inspections using
the heuristic evaluation and cognitive walkthrough techniques. The evaluations
allowed the detection of both, a number of problems and of several improvement
opportunities; at the same time that they highlighted the importance of using
complementary text input modes in order to satisfy the needs of different
users. Overall, the evaluation results suggest that the proposed approach
provides a satisfactory level of usability by overcoming the limitations of
text input in the context of user-interaction with interactive TV applications.
[12]
Designing the user experience in iTV-based interactive learning objects
Learning and design of communication
/
Martins, Diogo S.
/
Oliveira, Lílian S.
/
Pimentel, Maria da Graça C.
ACM 28th International Conference on Design of Communication
2010-09-26
p.243-250
© Copyright 2010 ACM
Summary: This paper reports the design of the user experience in EducaTV, an
architecture for the association of value-added interactive content to
educational TV programs. To properly tackle the unique user interface (UI)
challenges posed by educational TV applications, EducaTV was designed through
User-Centered Design (UCD) principles with extensive evaluation along the
process. We report the main issues of access and findings obtained throughout
the design process. Our findings revealed that iDTV applications must provide
strategies to signalize interactive content without being obtrusive.
Additionally, the context of the users must be taken into account, for instance
by providing functionalities to enable collaborative interaction in learning
groups, as well as mobilization affordances to encompass the different levels
of technological literacy. Moreover, a recurrent issue that affected user
experience was the proper synchronization of the live program with the
interactive content.
[13]
A social approach to authoring media annotations
Authoring
/
Fagá, Roberto, Jr.
/
Motti, Vivian Genaro
/
Cattelan, Renan Gonçalves
/
Teixeira, Cesar Augusto Camillo
/
Pimentel, Maria da Graça Campos
Proceedings of the 2010 ACM Symposium on Document Engineering
2010-09-21
p.17-26
Keywords: annotation, collaboration, multimodal, open vocabulary, video,
watch-and-comment, YouTube
© Copyright 2010 ACM
Summary: End-user generated content is responsible for the success of several
collaborative applications, as it can be noted in the context of the web. The
collaborative use of some of these applications is made possible, in many
cases, by the availability of annotation features which allow users to include
commentaries on each other's content. In this paper we first discuss the
opportunity of defining vocabularies that allow third-party applications to
integrate annotations to end-user generated documents, and present a proposal
for such a vocabulary. We then illustrate the usefulness of our proposal by
detailing a tool which allows users to add multimedia annotations to end-user
generated video content.
[14]
"This conversation will be recorded": automatically generating interactive
documents from captured media
Authoring
/
Vega-Oliveros, Didier Augusto
/
Martins, Diogo Santana
/
Pimentel, Maria da Graça Campos
Proceedings of the 2010 ACM Symposium on Document Engineering
2010-09-21
p.37-40
Keywords: automatic authoring, interactive video
© Copyright 2010 ACM
Summary: Synchronous communication tools allow remote users to collaborate by
exchanging text, audio, images or video messages in synchronous sessions. In
some scenarios, it is paramount that collaborative synchronous sessions be
recorded for later review. In particular in the case of web conferencing tools,
the approach usually adopted for recording a meeting is to generate a linear
video with the content of the exchanged media. Such approach limits the review
of a meeting to users watching a video using traditional timeline-based video
controls. In this work we advocate that interactive multimedia documents can be
generated automatically as a result of capturing a synchronous session. We
outline our approach presenting a case of study involving remote communication,
and detail the generation of a multimedia document by means of operators
focusing on the interaction among the collaborating users.
[15]
EDITED BOOK
Mobile TV: Customizing Content and Experience: Mobile Storytelling, Creation
and Sharing
Human-Computer Interaction Series
/
Marcus, Aaron
/
Roibás, Anxo Cereijo
/
Sala, Riccardo
2010
n.24
p.372
Springer London
DOI: 10.1007/978-1-84882-701-1
Mobile TV: Customizing Content and Experience (1-2)
+ Marcus, Aaron
+ Cereijo-Roibas, Anxo
+ Sala, Riccardo
== What It All Means: Six Perspectives on Mobile TV ==
Mobile TV's Time to Shine Has Arrived (5-9)
+ Kitson, Fred
Saddlebags, Paperbacks and Mobile Media (11-13)
+ Zwick, Carola
The Path Tells a Story (15-19)
+ Nack, Frank
Introduction to Social TV (21-24)
+ Harboe, Gunnar
The Sociability of Mobile TV (25-28)
+ Geerts, David
Interactive TV Narrativity (29-33)
+ Ursu, Marian F.
== User Experience and Design of Mobile TV in Everyday Life ==
Culture, Interface Design, and Design Methods for Mobile Devices (37-66)
+ Lee, Kun-pyo
Mobile Video in Everyday Social Interactions (67-80)
+ Reponen, Erika
+ Lehikoinen, Jaakko
+ Impiö, Jussi
Does Mobile Television Enhance a New Television Experience? (81-96)
+ Lievens, Bram
+ Vanhengel, Eva
+ Pierson, Jo
+ Jacobs, An
== Innovation Through Conceptual and Participatory Design for Mobile Multimedia Systems ==
An Ambient Intelligence Framework for the Provision of Geographically Distributed Multimedia Content to Mobility Impaired Users (99-119)
+ Kehagias, Dionysios D
+ Giakoumis, Dimitris
+ Tzovaras, Dimitrios
+ Bekiaris, Evangelos
+ et al
Creativity in Interactive TV: Personalize, Share, and Invent Interfaces (121-139)
+ Vatavu, Radu-Daniel
== Understanding the Context: Data Gathering, Requirements and Evaluation Methodologies ==
Content for Mobile Television: Issues Regarding a New Mass Medium Within Today's ICT Environment (143-163)
+ Schuurman, Dimitri
+ De Marez, Lieven
+ Evens, Tom
Different Attitudes Concerning the Usage of Live Mobile TV and Mobile Video (165-193)
+ Miyauchi, Koji
+ Sugahara, Taro
+ Oda, Hiromi
User Experience Evaluation in the Mobile Context (195-204)
+ Obrist, Marianna
+ Meschtscherjakov, Alexander
+ Tscheligi, Manfred
== Context and Sociability in Mobile Interactive Multimedia Systems ==
Social Properties of Mobile Video (207-233)
+ Mitchell, April Slayden
+ O'Hara, Kenton
+ Vorbau, Alex
m-YouTube Mobile UI: Video Selection Based on Social Influence (235-241)
+ Marcus, Aaron
+ Perez, Angel
Scenarios of Use for Sociable Mobile TV (243-254)
+ Chorianopoulos, Konstantinos
"What Are You Viewing?" Exploring the Pervasive Social TV Experience (255-290)
+ Schatz, Raimund
+ Baillie, Lynne
+ Fröhlich, Peter
+ Egger, Sebastian
+ Grechenig, Thomas
== Advanced Interaction Modalities with Mobile Digital Content ==
m-LoCoS UI: A Universal Visible Language for Global Mobile Communication (293-304)
+ Marcus, Aaron
The Future of Mobile TV: When Mobile TV Meets the Internet and Social Networking (305-326)
+ Montpetit, Marie-José
+ Klym, Natalie
+ Blain, Emmanuel
From One to Many Boxes: Mobile Devices as Primary and Secondary Screens (327-348)
+ Cesar, Pablo
+ Knoche, Hendrik
+ Bulterman, Dick C. A.
Watch-and-Comment as an Approach to Collaboratively Annotate Points of Interest in Video and Interactive-TV Programs (349-368)
+ Pimentel, Maria da Graça C.
+ Cattelan, Renan G.
+ Melo, Erick L.
+ Freitas, Giliard B.
+ et al
Conclusion (The Mobile Future) (369-372)
+ Marcus, Aaron
+ Sala, Riccardo
+ Roibás, Anxo Cereijo
[16]
Context information exchange and sharing in a peer-to-peer community: a
video annotation scenario
Online information exchange, use, & adoption
/
Fagá, Roberto, Jr.
/
Furtado, Bruno C.
/
Maximino, Felipe
/
Cattelan, Renan G.
/
Pimentel, Maria da Graça C.
ACM 27th International Conference on Design of Communication
2009-09-05
p.265-272
Keywords: CSCW, P2P, collaborative annotations, context, interactive digital tv
© Copyright 2009 ACM
Summary: The literature reports many efforts toward supporting video annotation. In
this paper, we present a peer-to-peer model for the exchange of context
information and user annotations over video. The Context-Aware Peer-to-Peer
Architecture (CAPPA) exploits the automatic capture of the user-interaction
with personal devices, employs ontologies to store context information, and
uses the context information to organize users in P2P groups for the
collaborative exchange of information. We present our proposed model by
discussing a prototype system, called CAPPA Service (CAPPAS), which allows
users to create and to join peer-to-peer groups using Web-based social
communities. Using CAPPAS, users are able to create multimodal annotations
while watching videos. The service deploys a capture mode which can be adapted
according to the context information collected from the P2P network. CAPPAS
customization features include the adaptation of its graphical interfaces
according to context information, and the automatic suggestion of text
completion during annotation.
[17]
End-user editing of interactive multimedia documents
Modeling, editing, adaptation
/
Pimentel, Maria da Graça C.
/
Cattelan, Renan G.
/
Melo, Erick L.
/
Teixeira, Cesar A. C.
Proceedings of the 2008 ACM Symposium on Document Engineering
2008-09-16
p.298-301
Keywords: interactive multimedia, interactive video
© Copyright 2008 ACM
Summary: The problem of allowing user-centric control within multimedia presentations
is important to document engineering when the presentations are specified as
structured multimedia documents. In this paper we investigate the problem in
the context of end-user "real-time" editing of interactive video programs.
[18]
Linking to Several Messages for Convergence: A Case Study in the AulaNet
Forum
Patterns of Collaboration
/
Pimentel, Mariano Gomes
/
Fuks, Hugo
/
de Lucena, Carlos José Pereira
CRIWG 2008: Groupware: Design, Implementation, and Use
2008-09-14
p.196-203
Keywords: LMS; Discussion forum; convergence; links
© Copyright 2008 Springer-Verlag
Summary: In this article, a piece of research on the development and use of a
discussion forum is presented. In an online course, it was identified that one
of the problems of the educational use of discussion forums is the high number
of messages that go unanswered. To attenuate this problem a convergence
mechanism was elaborated: links to messages beyond the replied one. In the case
study conducted in two course editions, it was verified that the use of links
decreased the number of unanswered messages.
[19]
EDITED BOOK
Web Accessibility: A Foundation for Research
Human-Computer Interaction Series
/
Harper, Simon
/
Yesilada, Yeliz
2008
n.21
p.355
Springer London
DOI: 10.1007/978-1-84800-050-6
== Understanding Disabilities ==
Visual Impairments (3-13)
+ Barreto, A.
Cognitive and Learning Impairments (15-23)
+ Lewis, Clayton
Hearing Impairments (25-35)
+ Cavender, Anna
+ Ladner, Richard E.
Physical Impairment (37-46)
+ Trewin, Shari
Ageing (47-58)
+ Kurniawan, Sri H.
== Evaluation and Methodologies ==
Web Accessibility and Guidelines (61-78)
+ Harper, Simon
+ Yesilada, Yeliz
Web Accessibility Evaluation (79-106)
+ Abou-Zahra, Shadi
End User Evaluations (107-126)
+ Jay, Caroline
+ Lunn, Darren
+ Michailidou, Eleni
Authoring Tools (127-138)
+ Treviranus, Jutta
== Applications ==
Assistive Technologies (142-162)
+ Edwards, Alistair D. N.
Desktop Browsers (163-193)
+ Gunderson, Jon
Specialized Browsers (195-213)
+ Raman, T. V.
Browser Augmentation (215-229)
+ Hanson, Vicki L.
+ Richards, John T.
+ Swart, Cal
Transcoding (231-260)
+ Asakawa, Chieko
+ Takagi, Hironobu
== Specialised Areas ==
Education (263-271)
+ Salomoni, Paola
+ Mirri, Silvia
+ Ferretti, Stefano
+ Roccetti, Marco
Specialized Documents (274-285)
+ Munson, Ethan V.
+ Pimentel, Maria Graça da
Multimedia and Graphics (287-299)
+ Regan, Bob
+ Kirkpatrick, Andrew
Mobile Web and Accessibility (302-313)
+ Hori, Masahiro
+ Kato, Takashi
Semantic Web (315-330)
+ Horrocks, Ian
+ Bechhofer, Sean
Web 2.0 (331-343)
+ Gibson, Becky
Universal Usability (346-355)
+ Horton, Sarah
+ Leventhal, Laura
[20]
Clustering as an approach to support the automatic definition of semantic
hyperlinks
Practical hypertext (2)
/
Camacho-Guerrero, José A.
/
Carvalho, Alex A.
/
Pimentel, Maria G. C.
/
Munson, Ethan V.
/
Macedo, Alessandra A.
Proceedings of the Eighteenth ACM Conference on Hypertext and Hypermedia
2007-09-10
p.81-84
© Copyright 2007 ACM
Summary: We propose the use of clustering to support the automatic definition of
semantic hyperlinks. We present a linking service that relates documents
pertaining to a specific cluster created by a clustering process. The results
of preliminary experiments are positive and illustrate our contribution in
terms of creating hyperlinks considering the homogeneous contents represented
by clusters.
[21]
Customization of sensor-based input devices
Short papers
/
Santos, Felipe S.
/
Pimentel, Maria Graça
/
Teixeira, Cesar A. C.
Proceedings of the 2006 Brazilian Symposium on Human Factors in Computing
Systems
2006-11-19
p.5-8
© Copyright 2006 ACM
Summary: The literature reports many efforts with respect to facilitate building
applications using non-traditional input devices -- for instance to support
those designers who do not master the low level programming demanded for
building sensor-based applications.
We present an architectural approach to support the flexible customization
of sensor-based input devices so as to provide a systematic procedure to
personalize input devices.
[22]
Modeling context Information for capture and access applications
XSLT and beyond
/
Pimentel, Maria G.
/
Baldochi, Laercio
/
Munson, Ethan V.
Proceedings of the 2006 ACM Symposium on Document Engineering
2006-10-10
p.92-94
Keywords: UML models, XMI, XML schema, XSLT, capture and access applications,
computing, ubiquitous
© Copyright 2006 ACM
Summary: The Contextractor is an XSLT-based transformation system that gathers
information from extended UML models to produce XML Schemas that model the
information captured by an application and define a query language that allows
the submission of queries over the captured content.
[23]
Development of Groupware Based on the 3C Collaboration Model and Component
Technology
Collaborative Workspaces
/
Gerosa, Marco Aurélio
/
Pimentel, Mariano Gomes
/
Fuks, Hugo
/
de Lucena, Carlos José Pereira
CRIWG 2006: Groupware: Design, Implementation, and Use
2006-09-17
p.302-309
Keywords: groupware; component software; collaboration model; groupware development
process
© Copyright 2006 Springer-Verlag
Summary: Groupware is evolutionary and difficult to develop and maintain. Thus, its
code becomes unstructured and difficult to evolve. In this paper, a groupware
development approach based on components organized according to the 3C
collaboration model is proposed. In this model, collaboration is analyzed based
on communication, coordination and cooperation. Collaboration requirements,
analyzed based on the 3C model, are mapped onto software components. These
components aid developers to assembly groupware. The RUP-3C-Groupware, which is
a groupware development process, is used for that purpose. This process is a
RUP extension focused on groupware domain, and is the result of 8 years of
experience with the development of collaborative services for the AulaNet
Project. The proposed approach is applied as a case study to the development of
the new version of the AulaNet environment. In order to instantiate the
environment's communication services, 3C based component kits were developed
for the case study. The components allow composition, re-composition and
customization of services to reflect changes in the collaboration dynamics.
[24]
A document-based approach to the generation of web applications
Document adaptation
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de Andrade, Andrea R.
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Munson, Ethan V.
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Pimentel, Mariada G.
Proceedings of the 2004 ACM Symposium on Document Engineering
2004-10-28
p.45-47
Keywords: XML, XSLT, cocoon, design, web applications
© Copyright 2004 ACM
Summary: wVIEW is an automated system for generating Web applications that relies
extensively on document representations and transformations. wVIEW adopts the
widely accepted hypermedia design principle that content navigation and
presentation are separate concerns. Each of these aspects of the design process
is controlled by separate declarative specifications. Only the first
specification the content structure specification which is described using UML
must be provided. However the wVIEW user is free to add extensions and
customizations to both the data and navigation models in order to make the
final application suit specific needs. This paper describes the wVIEW approach
and the current prototype which focuses on the data and navigation modelling
aspects. The paper discusses experiences in using XSLT as the primary
development tool and shows examples how the enhancements planned to XSLT
address some limitations of the application generation process.
[25]
A look at some issues during textual linking of homogeneous web repositories
Time, media, interaction
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Camacho-Guerrero, José Antonio
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Macedo, Alessandra Alaniz
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Pimentel, Maria da Graça Campos
Proceedings of the 2004 ACM Symposium on Document Engineering
2004-10-28
p.74-83
Keywords: homogeneous repositories, information retrieval, linking, semantic
structures, web
© Copyright 2004 ACM
Summary: Interacting with services that create links automatically via Web users are
able to identify relationships among documents stored in different
repositories. The fact that automatic linking services do not use queries
performed by a human user has impact in the use of information retrieval
techniques for the identification of relationships. Information retrieval
techniques can lead to the identification of relationships that should not have
been generated (generating non-relevant links) at the same time that fail to
identify all relevant relationships (poor recall). Towards improving the
quality of the relationships identified we have investigated some design issues
considered during the automatic linking of textual repositories. The
investigations have used a collection of documents from online Brazilian
Newspapers and the Cystic Fibrosis Collection. The results of the
investigations have defined procedures infrastructures and consequently the
requirements for a configurable linking service made also available as a
contribution of this work.
