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Presentation Models by Example [chapter]

Pablo Castells, Pedro Szekely
1999 Eurographics  
Interface builders and multi-media authoring tools only support the construction of static displays where the components of the display are known at design time (e.g., buttons, menus). High-level UIMSs and automated designers support more sophisticated displays but are not easy to use as they require dealing explicitly with elaborate abstract concepts. This paper describes a GUI development environment, HandsOn, where complex displays of dynamically changing data can be constructed by direct
more » ... ructed by direct manipulation. HandsOn integrates principles of graphic design, supports constraint-based layout, and has facilities for easily specifying the layout of collections of data. The system incorporates Programming By Example techniques to relieve the designer from having to deal with abstractions, and relies on a model-based language for the representation of the displays being constructed and as a means to provide information for the tool to reason about. Keywords User interface development tools, model-based user interfaces, direct manipulation, programming by example, data visualization, graphic design.
doi:10.1007/978-3-7091-6815-8_8 fatcat:q4l7kubqljdjbjnufbnofk34bq

EL CASTELL MAJOR EN TEMPS DEL DIBUIXANT ANTON VAN DEN WYNGAERDE (1525-1571)

Pablo Camarasa Balaguer
2020 Saitabi  
Resumen: El present treball busca reconstruir gràficament, fent ús de noves ferramentes digitals, el castell major de Xàtiva prenent com a model el dibuix executat pel pintor flamenc Anton van den Wyngaerde  ...  El castell major en temps del dibuixant Wyngaerde 69 Saitabi.  ...  Revista de la Facultat de Geografia i Història, 70 (2020), pp. 67-79 ISSN 0210-9980 DOI: 10.7203/saitabi.70.17079 El castell major en temps del dibuixant Wyngaerde 71 2 Si s'estudien els 104 castells  ... 
doi:10.7203/saitabi.70.17079 fatcat:mfgh5zpczvcvfp7vbgyl3qpnti

Fast Trace Generation of Many-Core Embedded Systems with Native Simulation [article]

David Castells-Rufas, Jordi Carrabina, Pablo González de Aledo Marugán, Pablo Sánchez Espeso
2014 arXiv   pre-print
Embedded Software development and optimization are complex tasks. Late availably of hardware platforms, their usual low visibility and controllability, and their limiting resource constraints makes early performance estimation an attractive option instead of using the final execution platform. With early performance estimation, software development can progress although the real hardware is not yet available or it is too complex to interact with. In this paper, we present how the native
more » ... the native simulation framework SCoPE is extended to generate OTF trace files. Those trace files can be later visualized with trace visualization tools, which recently were only used to optimize HPC workloads in order to iterate in the development process.
arXiv:1406.4840v1 fatcat:2lztuoqp2raabgxvktwy6gzywe

Sudden Death: A New Way to Compare Recommendation Diversification [article]

Derek Bridge and Mesut Kaya and Pablo Castells
2019 arXiv   pre-print
This paper describes problems with the current way we compare the diversity of different recommendation lists in offline experiments. We illustrate the problems with a case study. We propose the Sudden Death score as a new and better way of making these comparisons.
arXiv:1908.00419v1 fatcat:zff3ughrubh2rgt2nhnuxlmdjy

Novelty and Diversity in Recommender Systems [chapter]

Pablo Castells, Neil J. Hurley, Saul Vargas
2015 Recommender Systems Handbook  
The contents of this chapter have been published in (Vargas, Castells, & Vallet, SIGIR, 2011) .  ...  Some initial work towards the determination of goodness of item features has been done in (Vargas, Castells, & Vallet, 2012) .  ...  items with respect to recommendations that alternative systems may procure), or inter-user diversity (with respect to the recommendations other users are getting) as defined in (Bellogín, Cantador, & Castells  ... 
doi:10.1007/978-1-4899-7637-6_26 fatcat:53veooy4dzgzxcr3volnel46w4

Predicting Neighbor Goodness in Collaborative Filtering [chapter]

Alejandro Bellogín, Pablo Castells
2009 Lecture Notes in Computer Science  
Performance prediction has gained increasing attention in the IR field since the half of the past decade and has become an established research topic in the field. The present work restates the problem in the subarea of Collaborative Filtering (CF), where it has barely been researched so far. We investigate the adaptation of clarity-based query performance predictors to define predictors of neighbor performance in CF. The proposed predictors are introduced in a memory-based CF algorithm to
more » ... F algorithm to produce a dynamic variant where neighbor ratings are weighted based on their predicted performance. The approach is tested with encouraging empirical results, as the dynamic variants consistently outperform the baseline algorithms, with increasing difference on small neighborhoods.
doi:10.1007/978-3-642-04957-6_52 fatcat:wtz77nq2pbadtl57bbzjw3qdnq

Els castells de Corbera i de Cullera: de hisn musulmà a castrum cristià

Pablo Clari Hidalgo
2018 Scripta: Revista Internacional de Literatura i Cultura Medieval i Moderna  
Aquets són el castell de Corbera i Cullera.  ...  Resum: Durant l'època islàmica i els primers anys després de la conquesta, els castells, dins del territori valencià, van ser un dels elements més importants pel que fa a la vertebració de la societat  ...  El castell de Corbera.  ... 
doi:10.7203/scripta.12.13662 fatcat:xtgigu5v5bfwdjzn5lsigqk3ja

Probabilistic Score Normalization for Rank Aggregation [chapter]

Miriam Fernández, David Vallet, Pablo Castells
2006 Lecture Notes in Computer Science  
Rank aggregation is a pervading operation in IR technology. We hypothesize that the performance of score-based aggregation may be affected by artificial, usually meaningless deviations consistently occurring in the input score distributions, which distort the combined result when the individual biases differ from each other. We propose a score-based rank aggregation model where the source scores are normalized to a common distribution before being combined. Early experiments on available data
more » ... on available data from several TREC collections are shown to support our proposal.
doi:10.1007/11735106_63 fatcat:u2yngwwrzng4vnbsnxggq6u5de

An Ontology-Based Information Retrieval Model [chapter]

David Vallet, Miriam Fernández, Pablo Castells
2005 Lecture Notes in Computer Science  
Semantic search has been one of the motivations of the Semantic Web since it was envisioned. We propose a model for the exploitation of ontologybased KBs to improve search over large document repositories. Our approach includes an ontology-based scheme for the semi-automatic annotation of documents, and a retrieval system. The retrieval model is based on an adaptation of the classic vector-space model, including an annotation weighting algorithm, and a ranking algorithm. Semantic search is
more » ... ntic search is combined with keyword-based search to achieve tolerance to KB incompleteness. Our proposal is illustrated with sample experiments showing improvements with respect to keyword-based search, and providing ground for further research and discussion.
doi:10.1007/11431053_31 fatcat:ok7fxqm4w5eqdogdvoyvfavkqq

Semi-automatic Semantic-Based Web Service Classification [chapter]

Miguel Ángel Corella, Pablo Castells
2006 Lecture Notes in Computer Science  
Esta es la versión de autor de la comunicación de congreso publicada en: This is an author produced version of a paper published in: El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscription Abstract. With the expectable growth of the number of Web services available on the WWW and service repositories, the need for mechanisms that enable the automatic organization and discovery of services becomes increasingly
more » ... reasingly important. Service classification using standard or proprietary taxonomies is a common and simple facility in this context, complementarily to more sophisticated service management retrieval techniques. In this paper we propose a heuristic approach for the semi-automatic classification of Web services, based on a three-level matching procedure between services and classification categories, assuming a corpus of previously classified services is available. An experimental test of the proposed techniques is reported, showing positive results.
doi:10.1007/11837862_43 fatcat:c47qhvugj5flrhyjshzpl6ynwm

Guest editorial: special issue on ECIR 2020

Joemon M. Jose, Emine Yilmaz, João Magalhães, Pablo Castells
2021 Information retrieval (Boston)  
doi:10.1007/s10791-021-09389-1 fatcat:zn3s7x4t3vhq3ko4cxpfu6j46y

A multilayer ontology-based hybrid recommendation model

Iván Cantador, Alejandro Bellogín, Pablo Castells
2008 AI Communications  
We propose a novel hybrid recommendation model in which user preferences and item features are described in terms of semantic concepts defined in domain ontologies. The exploitation of meta-information describing the recommended items and user profiles in a general, portable way, along with the capability of inferring knowledge from the relations defined in the ontologies, are the key aspects of the presented proposal. Taking advantage of the enhanced semantics representation, user profiles are
more » ... , user profiles are compared at a finer grain size than they are in usual recommender systems. More specifically, the concept, item, and user spaces are clustered in a coordinated way, and the resulting clusters are used to find similarities among individuals at multiple semantic layers. Such layers correspond to implicit Communities of Interest (CoI), and enable collaborative recommendations of enhanced precision. Our approach is tested in two sets of experiments: one including profiles manually defined by real users and another with automatically generated profiles based on data from the IMDb and MovieLens datasets.
doi:10.3233/aic-2008-0437 fatcat:xqz7zrx4jfhexkorvslhxwffuu

Group Recommender Systems: New Perspectives in the Social Web [chapter]

Iván Cantador, Pablo Castells
2012 Intelligent Systems Reference Library  
An increasingly important type of recommender systems comprises those that generate suggestions for groups rather than for individuals. In this chapter, we revise state of the art approaches on group formation, modelling and recommendation, and present challenging problems to be included in the group recommender system research agenda in the context of the Social Web.
doi:10.1007/978-3-642-25694-3_7 fatcat:774ktylwknef5coi3lkmvdricy

A Heuristic Approach to Semantic Web Services Classification [chapter]

Miguel Ángel Corella, Pablo Castells
2006 Lecture Notes in Computer Science  
Esta es la versión de autor de la comunicación de congreso publicada en: This is an author produced version of a paper published in: Knowledge El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscription Abstract. Web service technologies, and the vision of semantically-enhanced services, aim to be key enablers to further exploit the potential of the Web as a platform where units of functionality can be deployed, shared,
more » ... eployed, shared, and assembled in a much more flexible way than it is possible today. Due to the expectable growth of the number of services offered in the WWW, the need for service repositories and mechanisms for the (semi)automatic organization and discovery of services is becomes increasingly important. In this paper, we propose a heuristic-based mechanism that enables service publishers to (semi)automatically classify their services in a service taxonomy managed by a service repository.
doi:10.1007/11893011_76 fatcat:k22y7ct4mfaotbudd3rn52wfnq

Finding Iteration Patterns in Dynamic Web Page Authoring [chapter]

José A. Macías, Pablo Castells
2005 Lecture Notes in Computer Science  
Most of the current WWW is made up of dynamic pages. The development of dynamic pages is a difficult and costly endeavour, out-of-reach for most users, experts, and content producers. We have developed a set of techniques to support the edition of dynamic web pages in a WYSIWYG environment. In this paper we focus on specific techniques for inferring changes to page generation procedures from users actions on examples of the pages generated by these procedures. More specifically, we propose
more » ... ly, we propose techniques for detecting iteration patterns in users' behavior in web page editing tasks involving page structures like lists, tables and other iterative HTML constructs. Such patterns are used in our authoring tool, DESK, where a specialized assistant, DESK-A, detects iteration patterns and generates, using Programming by Example, a programmatic representation of the user's actions. Iteration patterns help obtain a more detailed characterization of users' intent, based on user monitoring techniques, that is put in relation to application knowledge automatically extracted by our system from HTML pages. DESK-A relieves end-users from having to learn programming and specification languages for editing dynamic-generated web pages.
doi:10.1007/11431879_10 fatcat:4vaelc4otbadbhehvhsehtet3y
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