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19th Working Notes of CLEF Conference and Labs of the Evaluation Forum, CLEF 2018

作者： Atutxa, A. Casillas, A. Ezeiza, N. Fresno, V. Goenaga, I. Gojenola, K. Martínez, R. Oronoz, M. Perez-De-Viñaspre, O. Dpt. Languages and Computer Systems School of Engineering UPV EHU Bilbao Spain Dpt. Electricity and Electronics Fac. of Science and Technology UPV EHU Leioa Spain Dpt. Languages and Computer Systems Faculty of Informatics UPV EHU Donostia-San Sebastian United States Dpt. Languages and Computer Systems School of Computer Engineering UNED Madrid Spain

Hospital systems routinely assign disease codes (ICD10 codes) to medical records. The challenge stands on treating natural and nonstandard language in which doctors express their diagnoses and, additionally, to solve a large-scale classification problem, as there are thousands of possible codes. In this working notes paper, we present our system and the results of the CLEF 2018 eHealth Evaluation Task 1 on Multilingual Information Extraction-ICD10 coding. This benchmark addresses information extraction in written text with focus on several languages, specifically Hungarian, Italian and French. The goal is to automatically assign ICD10 codes to diagnostic terms of death certificates. The problem can be cast in different ways, for example as a multilabel classification task or as sequence-to-sequence prediction. Our proposal follows this last approach, with promising results, well above the average results for the task. It only relies on the material provided by the task organizers, allowing the application of the same system to all datasets.

关键词： Machine learning

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Cross-lingual transfer of correlations between parts of speech and gaze features 26

Cross-lingual transfer of correlations between parts of spee...

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26th International Conference on Computational Linguistics, COLING 2016

作者： Keller, Frank Barrett, Maria Søgaard, Anders School of Informatics University of Edinburgh 10 Crichton Street EdinburghEH8 9AB United Kingdom Centre for Language Technology University of Copenhagen Njalsgade 136 Copenhagen S2300 Denmark Dpt. of Computer Science University of Copenhagen Sigurdsgade 41 Copenhagen N2200 Denmark

ISBN: (纸本)9784879747020

Several recent studies have shown that eye movements during reading provide information about grammatical and syntactic processing, which can assist the induction of NLP models. All these studies have been limited to English, however. This study shows that gaze and part of speech (PoS) correlations largely transfer across English and French. This means that we can replicate previous studies on gaze-based PoS tagging for French, but also that we can use English gaze data to assist the induction of French NLP models. © 1963-2018 ACL.

关键词： Eye movements

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What do we need to know about clones? deriving information needs from user goals

What do we need to know about clones? deriving information n...

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International Workshop on Software Clones (IWSC)

作者： Hamid Abdul Basit Muhammad Hammad Stan Jarzabek Rainer Koschke Computer Science Dpt. LUMS Lahore Pakistan Punjab Information Technology Board (PITB) Lahore Pakistan Computer Science Dpt. NUS Singapore Dpt. of Mathematics and Informatics University of Bremen Germany

Clone detection can be used to achieve diverse objectives such as refactoring, program understanding, bug localization, and plagiarism detection, etc. Each goal takes a different perspective on clone information needs. Different clone detection tools report different information about clones. To gauge the suitability of a given clone detector for a particular user objective, we need to determine which information needs implied by the objective a clone detector addresses. In this paper, we make a first step toward gathering clone information needs from the description of user goals. The results of our analysis are useful for various stakeholders such as programmers, managers, tool developers, and researchers.

关键词： Cloning Software Context Quality assessment Ontologies Plagiarism Libraries

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Total Dermoscopy Score calculation using quantitative measurements in digital dermoscopy

Total Dermoscopy Score calculation using quantitative measur...

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Annual International Conference of the IEEE Engineering in Medicine and Biology Society

作者： Christos Nikolaos E. Anagnostopoulos Dimitrios D. Vergados Ioannis Anagnostopoulos Panagiotis Mintzias Cultural Technology and Communication Dpt. University of the Aegean Mytilene Lesvos GR Greece Informatics Opt. University of Piraeus Greece Computer Science and Biomedical Informatics Dpt. University of Thessaly Lamia GR Greece Dermatological Department of the General Hospital of Kalamata Greece

The main contributions of this paper are an automated approach for applying the ABCDE rules in a digital dermoscopy platform with fixed settings and a new registration method specially designed for aligning and comparing follow-up digital dermoscopy images in order to evaluate the evolution over time parameter E. Experimental evaluations of the registration method are reported for image pairs acquired during follow-up examinations.

关键词： Image color analysis Skin Image segmentation Lesions Malignant tumors Equations

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Query expansion with a little help from twitter

Communications in Computer and Information Science

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Communications in computer and Information Science 2013年 384卷 20-29页

作者： Anagnostopoulos, Ioannis Razis, Gerasimos Mylonas, Phivos Anagnostopoulos, Christos-Nikolaos Computer Science and Biomedical Informatics Dpt. University of Thessaly Greece Electrical and Computer Engineering School National Technical University of Athens Greece Cultural Technology and Communication Dpt. University of the Aegean Greece

With the advent and rapid spread of microblogging services, web information management finds a new research topic. Although classical information retrieval methods and techniques help search engines and services to present an adequate precision in lower recall levels (top-k results), the constantly evolving information needs of microblogging users demand a different approach, which has to be adapted to the dynamic nature of On-line Social Networks (OSNs). In this work, we use Twitter as microblogging service, aiming to investigate the query expansion provision that can be extracted from large graphs, and compare it against classical query expansion methods that require mainly prior knowledge, such as browsing history records or access and management of search logs. We provide a direct comparison with mainstream media services, such as Google, Yahoo!, Bing, NBC and Reuters, while we also evaluate our approach by subjective comparisons in respect to the Google Hot Searches service. © Springer-Verlag Berlin Heidelberg 2013.

关键词： Social networking (online)

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Competitive location: New models and methods and new trends

Competitive location: New models and methods and new trends

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IADIS International Conference Intelligent Systems and Agents 2013, ISA 2013, IADIS European Conference on Data Mining 2013, ECDM 2013, Part of the IADIS Multi Conference on computer Science and Information Systems 2013, MCCSIS 2013

作者： Fernández, José Arrondo, Aránzazu G. Redondo, Juana L. Ortigosa, Pilar M. Dpt. Statistics and Operations Research University of Murcia - Faculty of Mathematics Campus de Espinardo 30100 Espinardo Murcia Spain Dpt. Computer Architecture and Technology University of Granada - ETS Ingeniería Informática C/Periodista Daniel Saucedo 18071 Granada Spain Dpt. Informatics University of Almería - CITE III Ctra. Sacramento La Cañada de San Urbano 04120 Almería Spain

ISBN: (纸本)9789728939939

Two new models for sitting a new facility in a competitive environment are revised. Both the location and the quality of the new facility are to be found, so as to maximize the profit obtained by the locating firm. The patronizing behavior of customers is assumed to be probabilistic, i.e., they split their demand among all the existing facilities in the area, proportionally to the attraction they feel for them. Contrarily to what is commonly done in literature, the demand is not fixed, but varies depending on the location of the facilities. The first model assumes a static scenario, whereas in the second one a competing chain reacts by location a single new facility too, leading to a Stackelberg (or leader-follower) problem. The new continuous location models lead to hard-to-solve global optimization problems. A new evolutionary algorithm called UEGO was used to deal with those problems. The computational results showed its usefulness and robustness. Parallel implementations of UEGO were also presented to cope with large instances. Future trends which will allow the construction of an expert system for facility location are also discussed. © 2013 IADIS.

关键词： Global optimization

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The Learning Outcomes of the Exam Question in the Input/Output Topic in computer Architecture

The Learning Outcomes of the Exam Question in the Input/Outp...

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Learning and Teaching in Computing and Engineering (LaTiCE)

作者： Edurne Larraza-Mendiluze Nestor Garay-Vitoria Faculty of Informatics Dpt. of Computer Architecture and Technology EHU University of Basque Country San Sebastian Spain

The Input/Output (I/O) topic as a branch of the computer Architecture field has been considered a key topic in both the computer Science and the computer Engineering curricula. Years of teaching have demonstrated this topic to be difficult for students to understand. Having made some changes to the methodology used to teach the topic and to the infrastructure used for practice, we have analysed the results and concluded that the research should be more expert-centric than novice-centric. In this turnaround some exam questions have been analysed in order to determine the real learning outcomes achieved.

关键词： Educational institutions computer architecture computers Programming profession Taxonomy

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Block operator context scanning for commercial tracking

Block operator context scanning for commercial tracking

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7th Hellenic Conference on Artificial Intelligence, SETN 2012

作者： Giannoukos, Ioannis Vrachnakis, Vassilis Anagnostopoulos, Christos-Nikolaos Anagnostopoulos, Ioannis Loumos, Vassili Electrical and Computer Engineering School National Technical University of Athens Greece Cultural Technology and Communication Dpt. University of the Aegean Greece Computer Science and Biomedical Informatics Dpt. University of Central Greece Greece

ISBN: (纸本)9783642304477

The industry that designs and promotes advertising products in television channels is constantly growing. For effective market analysis and contract validation, various commercial tracker systems are employed. However, these systems mostly rely on heuristics and, since commercial broadcasting varies significantly, are often inaccurate. This paper proposes a commercial tracker system based on the Block Operator Context Scanning (Block - OCS) algorithm, which is both accurate and fast. The proposed method, similar to coarse-to-fine strategies, skips a large portion of the image sequences by focusing only on Regions of Interest. In this paper, a video matching algorithm is also proposed, which compares image sequences using time sliding windows of frames. Experimental results showed 100% accuracy and 50% speed increase compared to traditional block-based processing methods. © 2012 Springer-Verlag.

关键词： Scanning

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Considerations for successful enterprise information systems deployment: The case of the Greek School Network

Considerations for successful enterprise information systems...

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2012 9th International Conference on Service Systems and Service Management, ICSSSM'12

作者： Kalochristianakis, Michael Vassilakis, Kostas Varvarigos, Emmanouel Paraskevas, Michael Department of Computer Engineering and Informatics University of Patras Patras Greece Department of Sciences Technological Educational Institution of Crete Greece Computer Technology Institute and Press - Diofantus Patras Greece Dpt. of Telecom Systems and Networks Technological Educational Institute of Messolonghi Greece

ISBN: (纸本)9781457720253

Managing the IT environment of large organizations such as the Greek School Network is challenging not only due to the complexity, diversity and age of the information processing infrastructure but also due to geographic dispersion and the IT support model. Recently, the Network attempted to follow known practices for IT enterprise management;in order to organize and automate both supervision and intervention it employed centralized system management architectures. This paper records the challenges encountered in order to configure a deployable, high-end enterprise platform for the management of school labs across the Greek School Network. The paper reaches the conclusion that such systems or services are not always straightforward to deploy or scale and discusses alternative directions that can bring general purpose infrastructure management for organisations that cannot benefit from enterprise systems yet are still in need of analogous functionality. © 2012 IEEE.

关键词： Information management

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A personalized audio server using MPEG-7 and MPEG-21 standards

A personalized audio server using MPEG-7 and MPEG-21 standar...

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5th International Workshop on Semantic Media Adaptation and Personalization, SMAP 2010

作者： Skondras, Emmanouil Michalas, Angelos Louta, Malamati Anagnostopoulos, Ioannis Dpt. of Informatics and Computer Technology Technological Educational Institute of Western Macedonia 52100 Kastoria Greece Dpt. of Informatics and Telecommunications Engineering University of Western Macedonia 50100 Kozani Greece Dpt. of Computer Science and Biomedical Informatics University of Central Greece 35100 Lamia Greece

ISBN: (纸本)9781424486007

This paper presents a semantic model which delivers personalized audio information. The personalization process is automated and decentralized. The metadata which support personalization are separated in two categories: the metadata describing user preferences stored at each user and the resource adaptation metadata stored at the server. The multimedia models MPEG-21 and MPEG-7 are used to describe metadata information. The Web Ontology Language (OWL) language is used to produce and manipulate the relative ontological descriptions. © 2010 IEEE. © 2010 IEEE.

关键词： Metadata

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