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20th International conference on Enterprise Information Systems, ICEIS 2018

作者： Sebei, Hiba Taieb, Mohamed Ali Hadj Aouicha, Mohamed Ben Computer Science Department Faculty of Economics and Mangement Sfax Tunisia Multimedia InfoRmation Systems and Advanced Computing Laboratory Sfax Tunisia Computer Science Department Faculty of Sciences Sfax Tunisia

ISBN: (纸本)9789897582981

With the spread of online social media websites, a huge amount of online content is continuously provided. However, some contents gain an important attention from users while other contents are completely ignored. This highlights the analysis of popularity relative to different social content. The popularity is expressed through measures and features that act as factors expressing and influencing the popularity. Those features vary from an online social media website to another as it depends on the type of social entity. This paper tries to create a normalized view of the popularity metrics independent of the online social media and in relation with specific social entities that are user and media content (i.e. text, image, and video). We propose a Service Provider Interface (SPI) as a contract between users. The SPI offers a variety of interfaces for implementing services related to the quantification of social entities popularity independently of the online social media they belong to. Copyright © 2018 by SCITEPRESS - Science and Technology Publications, Lda. All rights reserved.

关键词： Social networking (online)

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A GPU parallel Algorithm for Image denoising based on Wavelet Transform coefficients Thresholding 14

A GPU parallel Algorithm for Image denoising based on Wavele...

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14th International conference on Signal Image Technology & Internet Based Systems (SITIS)

作者： Galletti, Ardelio Marcellino, Livia Russo, Luigi Univ Naples Parthenope Ctr Direz Dept Sci & Technol Isola C4 I-80143 Naples Italy

ISBN: (纸本)9781538693858

Denoising using Discrete Wavelet Transform is very popular in image processing. The main tasks of this kind of approach include the image decomposition into random sub-bands and the Wavelet coefficients extraction. In this paper a GPU parallel algorithm to compute and extract Wavelet coefficients is proposed. As preprocessing we use the Donoho method to study the amount of noise present in the images;while for suppression or shrinkage criterion we suggest the Garrote threshold. The selection process in this work was performed through two algorithms: Hard and Non-Negative Garrote Thresholding. Our work-frame uses a parallel approach to extract Wavelet coefficients at level of sub-bands, so that significant improvements are achieved over the CPU version, which a speedup gain of around four times with respect to the serial version. Some tests and numerical experiments show the efficiency and the quality obtained using the proposed method.

关键词： Image processing DWT Domain thresholding GPU parallel computing

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computing semantic trajectories: Methods and used techniques 10th

引用

10th KES International conference on Intelligent Interactive multimedia Systems and Services, IIMSS 2017

作者： Sakouhi, Thouraya Akaichi, Jalel Ahmed, Usman Institut Supérieur de Gestion Université de Tunis Tunis Tunisia College of Computer Science King Khalid University Abha Saudi Arabia

ISBN: (纸本)9783319594798

The widespread use of mobile devices generates huge amount of location data. The generated data is useful for many applications, including location-based services such as outdoor sports forums, routine prediction, location-based activity recognition and location-based social networking. Sharing individuals’ trajectories and annotating them with activities, for example a tourist transportation mode during his trip, helps bringing more semantics to the GPS data. Indeed, this provides a better understanding of the user trajectories, and then more interesting location-based services. To address this issue, diverse range of novel techniques in the literature are explored to enrich this data with semantic information, notably, machine learning and statistical algorithms. In this work, we focused, at a first level, on exploring and classifying the literature works related to semantic trajectory computation. Secondly, we capitalized and discussed the benefits and limitations of each approach. © Springer International Publishing AG 2018.

关键词： Location based services

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An approach to analyze cyberpsycho attacks enabled using persuasive messages 1st

An approach to analyze cyberpsycho attacks enabled using per...

引用

1st International conference on Smart computing and Informatics, SCI 2016

作者： Gupta, Prashant Nene, Manisha J. PuneMaharashtra411025 India

ISBN: (纸本)9789811055461

The study in this paper discusses and analysis the Cyberpsycho Attack, where an attacker uses end-user’s cyber space and social connections to affect his or her mindset or psychological sensibility to achieve short-term or long-term goals. The strategies in these attacks persuade decision-making ability of an individual or society or community to attain certain objectives by disseminating the persuasive messages in the form of texts/multimedia messages to accomplish political, religious, economical, social gains using cyberspace. The work in this paper explains the role of persuasive technology;and proposes a model to understand Cyberpsycho effects, describes the elements and phases of Cyberpsycho attacks, an approach along with a model for identification and analysis of Cyberpsycho attacks;emotions and sentiments analysis, rigorously. The results show that the persuasive messages may lead to Cyberpsycho attacks launched with an objective of attaining economical/political/social gains. The work in this paper is a step toward proposing a method to analyse emotions and sentiments forwarded using persuasive environments. © Springer Nature Singapore Pte Ltd. 2018.

关键词： Social networking (online)

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CrisisMMD: Multimodal twitter datasets from natural disasters 12

CrisisMMD: Multimodal twitter datasets from natural disaster...

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12th International AAAI conference on Web and Social Media, ICWSM 2018

作者： Alam, Firoj Ofli, Ferda Imran, Muhammad Qatar Computing Research Institute HBKU Doha Qatar

ISBN: (纸本)9781577357988

During natural and man-made disasters, people use social media platforms such as Twitter to post textual and multimedia content to report updates about injured or dead people, infrastructure damage, and missing or found people among other information types. Studies have revealed that this online information, if processed timely and effectively, is extremely useful for humanitarian organizations to gain situational awareness and plan relief operations. In addition to the analysis of textual content, recent studies have shown that imagery content on social media can boost disaster response significantly. Despite extensive research that mainly focuses on textual content to extract useful information, limited work has focused on the use of imagery content or the combination of both content types. One of the reasons is the lack of labeled imagery data in this domain. Therefore, in this paper, we aim to tackle this limitation by releasing a large multimodal dataset collected from Twitter during different natural disasters. We provide three types of annotations, which are useful to address a number of crisis response and management tasks for different humanitarian organizations. Copyright © 2018, Association for the Advancement of Artificial Intelligence (***). All rights reserved.

关键词： Social networking (online)

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Software Defined networking for Smart Quality of Service Management on New Generation Network

Software Defined Networking for Smart Quality of Service Man...

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IEEE International conference on multimedia computing and Systems (ICMCS)

作者： Faycal Bensalah Najib EL Kamoun Ayoub Bahnasse LAB STIC Faculty of Sciences El Jadida University Chouaib Doukkali Lab LTI Faculty of Sciences BenM’SIK University Hassan II of Casablanca

New Generation Networks (NGNs) are being increasingly deployed through their different benefits, primarily in terms of fast routing and commercialization of new IP-based services. In general, opening up to an IP service industry means that operators must invest in ensuring the necessary quality of service. As a result, QoS management in NGN has become a vital task, it is not acceptable to manually reconfigure each of the routers to provide the user with a good level of service. The SDN paradigm allows a controller to provide the network with the ability to follow a single control point. This paper introduces a new model of intelligent quality of service management in an MPLS based network, based on the SDN concept. The model offers a separation of data, control and transport plans for fast and efficient processing. The model consists of automatically and dynamically adjusting QoS policies for better data transmission quality.

关键词： Bandwidth Quality of service Resource management Heuristic algorithms Adaptation models Jitter Next generation networking

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Performance Evaluation of Multiple Attribute Mobility Decision Models: A QoE-efficiency Perspective 13

Performance Evaluation of Multiple Attribute Mobility Decisi...

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13th IEEE International conference on Wireless and Mobile computing, networking and Communications (WiMob)

作者： dos Santos, Charles H. F. de Lima, Mathews P. S. Dantas Silva, Felipe S. Neto, Augusto Fed Inst Educ Sci & Technol Rio Grande Norte IFRN Res Lab Adv Comp Network Technol LaTARC Fortaleza Ceara Brazil Univ Fed Rio Grande do Norte Dept Informat & Appl Math DIMAp Natal RN Brazil IT Aveiro Portugal

ISBN: (纸本)9781538638392

Future mobility management systems need to incorporate innovative methods to improve mobile multimedia networking, such as quality-oriented decision-making functions for selecting the best Point of Attachment (PoA) for in-transit Moving Objects (MOs). Among the various correlating algorithms raised in the literature, solutions based on the Multiple Attribute Decision Making (MADM) are beneficial by their efficiency in mobile multimedia networking. For the best of our knowledge, the literature lacks a comprehensive analysis concerning the subjective aspects related to user perception/satisfaction, the key to assessing multimedia Quality of Experience (QoE). The state of the art in MADM quality-oriented mobility management evaluation only address network-/packet-level Quality of Service (QoS) measures. Therefore, this work fills this gap by undertaking a user-centric QoE evaluation of the foremost available MADM-based algorithms used in quality-oriented mobility management over our previous work: the Extended Elitism for Best Selection (E2BS). The QoE evaluation is conducted leveraging the flexibility of the Software-Defined Mobile networking (SDMN) paradigm. The QoE analysis outcomes demonstrate that E2BS outperforms the selected MADM-based methods, by improving the overall QoE perceived by mobile users when consuming multimedia mobile flows.

关键词： Mobility Management Multiple Attribute Decision Making Quality of Experience Extended Elitism for Best Selection Software-Defined Mobile networking

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Maximizing Influence Propagation in Networks by User-Relational Iterative Ranking Algorithm

Maximizing Influence Propagation in Networks by User-Relatio...

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IEEE International conference on Big Data and Cloud computing (BdCloud)

作者： Wenbin Yao Lijuan Zhang Xiaoyong Li Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia Beijing University of Posts and Telecommunications Beijing China Key Laboratory of Trustworthy Distributed Computing and Service Ministry of Education Beijing University of Posts and Telecommunications Beijing China

ISBN: (纸本)9781728111421;9781728111414

The issue of maximizing the influence is a hot topic in the research of social network. Many researchers have studied from the perspective of the structure of the network such as the LeaderRank algorithm. However, the algorithm lacks semantic interpretability and explanations for user behavior. Therefore, we propose a novel URI (user-relational iterative) rank to address the above issues. The URI rank is divided into two parts to obtain the values of user influence. The first part is the forwarding probability based on the user relationship. We introduce the relationship between users to the user transition probability and use the random forest to quantify the value of the forwarding probability. The second part is the random transition probability based on the ground node. We optimize the weight assigning of the random transition probability by combining static decentralization and dynamic decentralization. Thus, we more accurately represent the user's random transfer behavior. The experiments performed on the Sina Micro-Blog Dataset show that our algorithm outperforms the existing algorithms.

关键词： Social networking (online) Telecommunications Greedy algorithms Complex networks Software multimedia communication multimedia computing

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Medical entity and relation extraction from narrative clinical records in Italian language 10th

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10th KES International conference on Intelligent Interactive multimedia Systems and Services, IIMSS 2017

作者： Diomaiuta, Crescenzo Mercorella, Maria Ciampi, Mario De Pietro, Giuseppe National Research Council of Italy Institute of High Performance Computing and Networking - ICAR Via Pietro Castellino 111 Naples80131 Italy

ISBN: (纸本)9783319594798

Applying Natural Language Processing techniques enables to unlock precious information contained in free text clinical reports. In this paper, we propose a system able to annotate medical entities in narrative records. Considering that existing NLP systems mainly concern entity recognition in English language, we propose an NLP pipeline to manage clinical free text in Italian. The overall architecture includes a spell checker, sentence detector, word tokenizer, part-of-speech tagger, dictionary lookup annotator, and parsing rules annotator. Essentially, it uses a rule-based approach to extract relevant concepts regarding patient’s conditions, administered medications, or performed procedures, detecting their attributes, negated forms, and relations expressions. The indexing of the documents allows the user to retrieve relevant information, increasing his/her medical knowledge. © Springer International Publishing AG 2018.

关键词： Natural language processing systems

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A Survey of Routing Mechanisms in ICNs

A Survey of Routing Mechanisms in ICNs

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IEEE International conference on multimedia computing and Systems (ICMCS)

作者： Ouassim Karrakchou Nancy Samaan Ahmed Karmouch School of Electrical Engineering and Computer Science University of Ottawa Ottawa Ontario Canada

The success of the current Internet architecture over the past decades has been attributed to its simple layered host-centric communication model. Unfortunately, this same design is now posing a significant challenge to newly developed applications such as media streaming, social networking and location-based services that are content- rather than host-centric. Information Centric Networks (ICNs) were introduced to address this challenge by allowing applications to retrieve contents using their names while being agnostic to their physical location. The key enabler to achieving this task is the development of efficient, robust and scalable name-based routing mechanisms. This paper discusses the main requirements of these mechanisms, analyzes existing key name-based routing approaches and highlights future research directions in that area.

关键词： Routing Routing protocols Internet Peer-to-peer computing IP networks ARPANET

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