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570 results on '"Jiménez, Tania"'

2. Evaluating Signage Accessibility for Individuals with Visual Impairments: A Case Study in Ecuador

Author

Arias-Flores, Hugo, Valencia-Aragón, Kevin, Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, van Leeuwen, Jan, Series Editor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Kobsa, Alfred, Series Editor, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Nierstrasz, Oscar, Series Editor, Pandu Rangan, C., Editorial Board Member, Sudan, Madhu, Series Editor, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Vardi, Moshe Y, Series Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Antona, Margherita, editor, and Stephanidis, Constantine, editor

Published
2024
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7. Big Data Architecture for Air Pollution Spatial Visualization: Quito, Ecuador

Author

Mora-Villacís, Gabriela, Calle-Jimenez, Tania, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Maldonado-Mahauad, Jorge, editor, Herrera-Tapia, Jorge, editor, Zambrano-Martínez, Jorge Luis, editor, and Berrezueta, Santiago, editor

Published
2023
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8. Giant chondroid syringoma on the upper lip: a case report

Author

Vázquez Hernández, Aarón, Pérez Campos, Alexandra Emma, Gamboa Jiménez, Tania Islem, and Fenton Navarro, Bertha Fenton

Subjects
benign tumor, chondroid syringoma, skin
Abstract

Chondroid syringoma is a benign, rare, asymptomatic, slow-growing mixed tumor. Tumors larger than 3cm are considered giant and may be malignant. We present a 65-year-old man with a chronic, indolent, subcutaneous tumor with upper lip deformity. An excisional biopsy was performed under local anesthesia. Based on histopathological analysis, the resected lesion was identified as a chondroid syringoma of the apocrine type. There was no recurrence during the one-year follow-up after surgery. The occurrence of a large chondroid syringoma in the upper lip is rare.

Published
2021

13. IMPACT-Global Hip Fracture Audit: Nosocomial infection, risk prediction and prognostication, minimum reporting standards and global collaborative audit: Lessons from an international multicentre study of 7,090 patients conducted in 14 nations during the COVID-19 pandemic

Author

Abdul-Jabar, Hani, Abu-Rajab, Rashid, Abugarja, Ahmed, Adam, Karen, Aguado Hernández, Héctor J., Améstica Lazcano, Gedeón, Anderson, Sarah, Ansar, Mahmood, Antrobus, Jonathan, Aragón Achig, Esteban Javier, Archunan, Maheswaran, Arrieta Salinas, Mirentxu, Ashford–Wilson, Sarah, Assens Gibert, Cristina, Athanasopoulou, Katerina, Awadelkarim, Mohamed, Baird, Stuart, Bajada, Stefan, Balakrishnan, Shobana, Balasubramanian, Sathishkumar, Ballantyne, James A., Bárcena Goitiandia, Leopoldo, Barkham, Benjamin, Barmpagianni, Christina, Barres-Carsi, Mariano, Barrett, Sarah, Baskaran, Dinnish, Bell, Jean, Bell, Katrina, Bell, Stuart, Bellelli, Giuseppe, Benchimol, Javier Alberto, Boietti, Bruno Rafael, Boswell, Sally, Braile, Adriano, Brennan, Caitlin, Brent, Louise, Brooke, Ben, Bruno, Gaetano, Burahee, Abdus, Burns, Shirley, Calabrò, Giampiero, Campbell, Lucy, Carabelli, Guido Sebastian, Carnegie, Carol, Carretero Cristobal, Guillermo, Caruana, Ethan, Cassinello Ogea, M.a Concepción, Castellanos Robles, Juan, Castillon, Pablo, Chakrabarti, Anil, Cecere, Antonio Benedetto, Chen, Ping, Clarke, Jon V., Collins, Grace, Corrales Cardenal, Jorge E., Corsi, Maurizio, Cózar Adelantado, Gara María, Craxford, Simon, Crooks, Melissa, Cuarental-García, Javier, Cuthbert, Rory, Dall, Graham, Daskalakis, Ioannis, De Cicco, Annalisa, de la Fuente de Dios, Diana, Demaria, Pablo, Dereix, John, Díaz Jiménez, Julian, Dinamarca Montecinos, José Luis, Do Le, Ha Phuong, Donoso Coppa, Juan Pablo, Drosos, Georgios, Duffy, Andrew, East, Jamie, Eastwood, Deborah, Elbahari, Hassan, Elias de Molins Peña, Carmen, Elmamoun, Mamoun, Emmerson, Ben, Escobar Sánchez, Daniel, Faimali, Martina, Farré-Mercadé, Maria Victòria, Farrow, Luke, Fayez, Almari, Fell, Adam, Fenner, Christopher, Ferguson, David, Finlayson, Louise, Flores Gómez, Aldo, Freeman, Nicholas, French, Jonathan, Gabardo Calvo, Santiago, Gagliardo, Nicola, Garcia Albiñana, Joan, García Cruz, Guillermo, García de Cortázar Antolín, Unai, García Virto, Virginia, Gealy, Sophie, Gil Caballero, Sandra Marcela, Gill, Moneet, González González, María Soledad, Gopireddy, Rajesh, Guntley, Diane, Gurung, Binay, Guzmán Rosales, Guadalupe, Haddad, Nedaa, Hafeez, Mahum, Haller, Petra, Halligan, Emer, Hardie, John, Hawker, Imogen, Helal, Amr, Herrera Cruz, Mariana, Herreros Ruiz-Valdepeñas, Ruben, Horton, James, Howells, Sean, Howieson, Alan, Hughes, Luke, Hünicken Torrez, Flavia Lorena, Hurtado Ortega, Ana, Huxley, Peter, Hamid, Hytham K.S., Ilahi, Nida, Iliadis, Alexis, Inman, Dominic, Jadhao, Piyush, Jandoo, Rajan, Jawad, Lucy, Jayatilaka, Malwattage Lara Tania, Jenkins, Paul J., Jeyapalan, Rathan, Johnson, David, Johnston, Andrew, Joseph, Sarah, Kapoor, Siddhant, Karagiannidis, Georgios, Karanam, Krishna Saga, Kattakayam, Freddy, Konarski, Alastair, Kontakis, Georgios, Labrador Hernández, Gregorio, Lancaster, Victoria, Landi, Giovanni, Le, Brian, Liew, Ignatius, Logishetty, Kartik, Lopez Marquez, Andrew Carlomaria Daniel, Lopez, Judit, Lum, Joann, Macpherson, Gavin J., Madan, Suvira, Mahroof, Sabreena, Malik-Tabassum, Khalid, Mallina, Ravi, Maqsood, Afnan, Marson, Ben, Martin Legorburo, M. José, Martin-Perez, Encarna, Martínez Jiménez, Tania, Martinez Martin, Javier, Mayne, Alistair, Mayor, Amy, McAlinden, Gavan, McLean, Lucille, McDonald, Lorna, McIntyre, Joshua, McKay, Pamela, McKean, Greg, McShane, Heather, Medici, Antonio, Meeke, Chelsea, Meldrum, Evonne, Mendez, Mijail, Mercer, Scott, Merino Perez, Josu, Mesa-Lampré, María-Pilar, Mighton, Shuna, Milne, Kirsty, Mohamed Yaseen, Muhammed, Moppett, Iain, Mora, Jesus, Morales-Zumel, Sira, Moreno Fenoll, Irene Blanca, Mousa, Adham, Murray, Alastair W., Murray, Elspeth V., Nair, Radhika, Neary, Fiona, Negri, Giacomo, Negus, Oliver, Newham-Harvey, Fiona, Ng, Nigel, Nightingale, Jess, Noor Mohamed Anver, Sumiya, Nunag, Perrico, O'Hare, Matthew, Ollivere, Ben, Ortés Gómez, Raquel, Owens, AnneMarie, Page, Siobhan, Palloni, Valentina, Panagiotopoulos, Andreas, Panagiotopoulos, Elias, Panesar, Paul, Papadopoulos, Antonios, Spyridon, Papagiannis, Pareja Sierra, Teresa, Park, Chang, Parwaiz, Hammad, Paterson-Byrne, Paul, Patton, Sam, Pearce, Jack, Porter, Marina, Pellegrino, Achille, Pèrez Cuellar, Arturo, Pezzella, Raffaele, Phadnis, Ashish, Pinder, Charlotte, Piper, Danielle, Powell-Bowns, Matilda, Prieto Martín, Rocío, Probert, Annabel, Ramesh, Ashwanth, Ramírez de Arellano, Manuel Vicente Mejía, Renton, Duncan, Rickman, Stephen, Robertson, Alastair, Roche Albero, Adrian, Rodrigo Verguizas, José Alberto, Rodríguez Couso, Myriam, Rooney, Joanna, Sáez-López, Pilar, Saldaña-Díaz, Andres, Santulli, Adriano, Sanz Pérez, Marta Isabel, Sarraf, Khaled M., Scarsbrook, Christine, Scott, Chloe E.H., Scott, Jennifer, Shah, Sachi, Sharaf, Sharief, Sharma, Sidharth, Shirley, Denise, Siano, Antonio, Simpson, James, Singh, Abhinav, Singh, Amit, Sinnett, Tim, Sisodia, Gurudatt, Smith, Philomena, Sophena Bert, Eugenia, Steel, Michael, Stewart, Avril, Stewart, Claire, Sugand, Kapil, Sullivan, Niall, Sweeting, Lauren, Symes, Michael, Tan, Dylan Jun Hao, Tancredi, Francesco, Tatani, Irini, Thomas, Philip, Thomson, Fraser, Toner, Niamh S., Tong, Anna, Toro, Antonio, Tosounidis, Theodoros, Tottas, Stylianos, Trinidad Leo, Andrea, Tucker, Damien, Vemulapalli, Krishna, Ventura Garces, Diego, Vernon, Olivia Katherine, Viveros Garcia, Juan Carlos, Ward, Alex, Ward, Kirsty, Watson, Kate, Weerasuriya, Thisara, Wickramanayake, Udara, Wilkinson, Hannah, Windley, Joseph, Wood, Janet, Wynell-Mayow, William, Zatti, Giovanni, Zeiton, Moez, Zurrón Lobato, Miriam, Hall, Andrew J., Clement, Nicholas D., Ojeda-Thies, Cristina, MacLullich, Alasdair MJ., Toro, Giuseppe, Johansen, Antony, White, Tim O., and Duckworth, Andrew D.

Published
2022
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15. Coupled Queueing and Charging Game Model with Energy Capacity Optimization

Author

Dupont, Alix, Hayel, Yezekael, Jiménez, Tania, Beaude, Olivier, Wan, Cheng, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Ballarini, Paolo, editor, Castel, Hind, editor, Dimitriou, Ioannis, editor, Iacono, Mauro, editor, Phung-Duc, Tuan, editor, and Walraevens, Joris, editor

Published
2021
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16. GIS for Decision-Making on the Gentrification Phenomenon in Strategic Territorial Planning

Author

Zambrano, Jacinto Palma, Calle-Jimenez, Tania, Orellana-Alvear, Boris, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Salgado Guerrero, Juan Pablo, editor, Chicaiza Espinosa, Janneth, editor, Cerrada Lozada, Mariela, editor, and Berrezueta-Guzman, Santiago, editor

Published
2021
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17. Gentrification in Medium-Sized Ecuadorian Cities in the Current Context of Territorial Planning: Literature Review

Author

Orellana-Alvear, Boris, Calle-Jimenez, Tania, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Charytonowicz, Jerzy, editor, Maciejko, Alicja, editor, and Falcão, Christianne S., editor

Published
2021
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18. Analysis of the Level of Accessibility of Scientific Online Conferences for Blind Participants

Author

Arias-Flores, Hugo, Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Ahram, Tareq Z., editor, and Falcão, Christianne S., editor

Published
2021
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19. Profiling of E-Learning Users with Accessibility Needs

Author

Calle-Jimenez, Tania, Sanchez-Gordon, Sandra, Arias-Flores, Hugo, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Ahram, Tareq Z., editor, and Falcão, Christianne S., editor

Published
2021
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20. Analysis of the Gentrification Phenomenon Using GIS to Support Local Government Decision Making

Author

Orellana-Alvear, Boris, Calle-Jimenez, Tania, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Ahram, Tareq, editor

Published
2021
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21. Mobile Technological Apps to Improve Frontal Lobe Functioning

Author

Ramos-Galarza, Carlos, Acosta-Rodas, Mónica, Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Ayaz, Hasan, editor, and Asgher, Umer, editor

Published
2021
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22. Backward-Shifted Coding (BSC) based on Scalable Video Coding for HAS

Author

Ye, Zakaria, El-Azouzi, Rachid, Jimenez, Tania, and De Pellegrini, Francesco

Subjects
Computer Science - Multimedia
Abstract

The main task of HTTP Adaptive Streaming is to adapt video quality dynamically under variable network conditions. This is a key feature for multimedia delivery especially when quality of service cannot be granted network-wide and, e.g., throughput may suffer short term fluctuations. Hence, robust bitrate adaptation schemes become crucial in order to improve video quality. The objective, in this context, is to control the filling level of the playback buffer and maximize the quality of the video, while avoiding unnecessary video quality variations. In this paper we study bitrate adaptation algorithms based on Backward-Shifted Coding (BSC), a scalable video coding scheme able to greatly improve video quality. We design bitrate adaptation algorithms that balance video rate smoothness and high network capacity utilization, leveraging both on throughput-based and buffer-based adaptation mechanisms. Extensive simulations using synthetic and real-world video traffic traces show that the proposed scheme performs remarkably well even under challenging network conditions.

Published
2016

23. Backward-Shifted Strategies Based on SVC for HTTP Adaptive Video Streaming

Author

Ye, Zakaria, El-Azouzi, Rachid, Jimenez, Tania, Altman, Eitan, and Valentin, Stefan

Subjects
Computer Science - Multimedia
Abstract

Although HTTP-based video streaming can easily penetrate firewalls and profit from Web caches, the underlying TCP may introduce large delays in case of a sudden capacity loss. To avoid an interruption of the video stream in such cases we propose the Backward-Shifted Coding (BSC). Based on Scalable Video Coding (SVC), BSC adds a time-shifted layer of redundancy to the video stream such that future frames are downloaded at any instant. This pre-fetched content maintains a fluent video stream even under highly variant network conditions and leads to high Quality of Experience (QoE). We characterize this QoE gain by analyzing initial buffering time, re-buffering time and content resolution using the Ballot theorem. The probability generating functions of the playback interruption and of the initial buffering latency are provided in closed form. We further compute the quasi-stationary distribution of the video quality, in order to compute the average quality, as well as temporal variability in video quality. Employing these analytic results to optimize QoE shows interesting trade-offs and video streaming at outstanding fluency., Comment: 9 pages

Published
2016

24. Forecasting popularity of videos in YouTube

Author

Richier, Cedric, Elazouzi, Rachid, Jimenez, Tania, Altman, Eitan, and Linares, Georges

Subjects
Computer Science - Social and Information Networks
Abstract

This paper proposes a new prediction process to explain and predict popularity evolution of YouTube videos. We exploit our recent study on the classification of YouTube videos in order to predict the evolution of videos' view-count. This classification allows to identify important factors of the observed popularity dynamics. Our experimental results show that our prediction process is able to reduce the average prediction errors compared to a state-of-the-art baseline model. We also evaluate the impact of adding popularity criteria in our classification., Comment: Paper withdrawn due to conflict of interest in conference call for paper

Published
2015

25. Phonological Awareness Intervention and Basic Literacy Skill Development with Kiteracy-PiFo

Author

Jadán-Guerrero, Janio, Ramos-Galarza, Carlos, de los Angeles Carpio-Brenes, María, Calle-Jimenez, Tania, Salvador-Ullauri, Luis, Nunes, Isabel L., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2020
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26. Contributions to Improve Accessibility and Usability of Academic Journal Management Systems. Case Study: OJS

Author

Arias-Flores, Hugo, Calle-Jimenez, Tania, Sanchez-Gordon, Sandra, Nunes, Isabel L., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2020
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27. Designing Accessible Maps on Mobile Devices for Blind and Visually Impaired Users

Author

Calle-Jimenez, Tania, Luján-Mora, Sergio, Arias-Flores, Hugo, Ramos-Galarza, Carlos, Nunes, Isabel L., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Di Bucchianico, Giuseppe, editor, Shin, Cliff Sungsoo, editor, Shim, Scott, editor, Fukuda, Shuichi, editor, Montagna, Gianni, editor, and Carvalho, Cristina, editor

Published
2020
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28. Improving Usability with Think Aloud and Focus Group Methods. A Case Study: An Intelligent Police Patrolling System (I-Pat)

Author

Calle-Jimenez, Tania, Tutillo-Sanchez, Doris, Sanchez-Gordon, Sandra, Jadán-Guerrero, Janio, Guevara, Cesar, Lara-Alvarez, Patricio, Acosta-Vargas, Patricia, Salvador-Ullauri, Luis, Nunes, Isabel L., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2020
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29. Building Hybrid Interfaces to Increase Interaction with Young Children and Children with Special Needs

Author

Jadán-Guerrero, Janio, Guevara, Cesar, Lara-Alvarez, Patricio, Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Salvador-Ullauri, Luis, Acosta-Vargas, Patricia, Bonilla-Jurado, Diego, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2020
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30. Implementation of Controls for Insertion of Accessible Images in Open Online Editors Based on WCAG Guidelines. Case Studies: TinyMCE and Summernote

Author

Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Villarroel-Ramos, Jorge, Jadán-Guerrero, Janio, Guevara, César, Lara-Alvarez, Patricio, Acosta-Vargas, Patricia, Salvador-Ullauri, Luis, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2020
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31. Fuzzy Model for Back Posture Correction During the Walk

Author

Guevara, Cesar, Jadán-Guerrero, Janio, Bonilla-Jurado, Diego, Salvador-Ullauri, Luis, Acosta-Vargas, Patricia, Calle-jimenez, Tania, Lara-Alvarez, Patricio, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2020
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32. Development of an Accessible Video Game to Improve the Understanding of the Test of Honey-Alonso

Author

Salvador-Ullauri, Luis, Acosta-Vargas, Patricia, Jadán-Guerrero, Janio, Guevara, Cesar, Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Lara-Alvarez, Patricio, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2020
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33. Accessibility Assessment in Mobile Applications for Android

Author

Acosta-Vargas, Patricia, Salvador-Ullauri, Luis, Jadán-Guerrero, Janio, Guevara, César, Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Lara-Alvarez, Patricio, Medina, Ana, Nunes, Isabel L., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2020
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34. Application to Guide People with Visual Disability on Internal Buildings, Using Beacon Bluetooth Positioning Systems

Author

Lara-Alvarez, Patricio, Jadán-Guerrero, Janio, Guevara-Maldonado, César, Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Salvador-Ullauri, Luis, Acosta-Vargas, Patricia, Espinoza, Wilmer Illescas, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Ahram, Tareq, editor, and Falcão, Christianne, editor

Published
2020
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37. Computing Quality of Experience of Video Streaming in Network with Long-Range-Dependent Traffic

Author

Ye, Zakaria, EL-Azouzi, Rachid, Jimenez, Tania, and Xu, Yuedong

Subjects
Computer Science - Networking and Internet Architecture
Abstract

We take an analytical approach to study the Quality of user Experience (QoE) for video streaming applications. Our propose is to characterize buffer starvations for streaming video with Long-Range-Dependent (LRD) input traffic. Specifically we develop a new analytical framework to investigate Quality of user Experience (QoE) for streaming by considering a Markov Modulated Fluid Model (MMFM) that accurately approximates the Long Range Dependence (LRD) nature of network traffic. We drive the close-form expressions for calculating the distribution of starvation as well as start-up delay using partial differential equations (PDEs) and solve them using the Laplace Transform. We illustrate the results with the cases of the two-state Markov Modulated Fluid Model that is commonly used in multimedia applications. We compare our analytical model with simulation results using ns-3 under various operating parameters. We further adopt the model to analyze the effect of bitrate switching on the starvation probability and start-up delay. Finally, we apply our analysis results to optimize the objective quality of experience (QoE) of media streaming realizing the tradeoff among different metrics incorporating user preferences on buffering ratio, startup delay and perceived quality., Comment: 10 pages, 14 figures

Published
2014

38. A Real-Time Algorithm for Movement Assessment Using Fuzzy Logic of Hip Arthroplasty Patients

Author

Guevara, César, Jadán-Guerrero, Janio, Rybarczyk, Yves, Acosta-Vargas, Patricia, Esparza, Wilmer, González, Mario, Villarreal, Santiago, Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Nunes, Isabel L., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2019
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39. Interaction with a Tele-Rehabilitation Platform Through a Natural User Interface: A Case Study of Hip Arthroplasty Patients

Author

Rybarczyk, Yves, Villarreal, Santiago, González, Mario, Acosta-Vargas, Patricia, Esparza, Danilo, Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Jadán, Janio, Nunes, Isabel L., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2019
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40. Analysis and Improvement of the Web Accessibility of a Tele-rehabilitation Platform for Hip Arthroplasty Patients

Author

Calle-Jimenez, Tania, Sanchez-Gordon, Sandra, Rybarczyk, Yves, Jadán, Janio, Villarreal, Santiago, Esparza, Wilmer, Acosta-Vargas, Patricia, Guevara, César, Nunes, Isabel L., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2019
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41. Educational Resources Accessible on the Tele-rehabilitation Platform

Author

Acosta-Vargas, Patricia, Esparza, Wilmer, Rybarczyk, Yves, González, Mario, Villarreal, Santiago, Jadán, Janio, Guevara, César, Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Baldeon, Jonathan, Nunes, Isabel L., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2019
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42. Design of an Architecture for Accessible Web Maps for Visually Impaired Users

Author

Calle-Jimenez, Tania, Eguez-Sarzosa, Adrián, Luján-Mora, Sergio, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2019
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43. Analysis and Improvement of the Usability of a Tele-Rehabilitation Platform for Hip Surgery Patients

Author

Pilco, Hennry, Sanchez-Gordon, Sandra, Calle-Jimenez, Tania, Rybarczyk, Yves, Jadán, Janio, Villarreal, Santiago, Esparza, Wilmer, Acosta-Vargas, Patricia, Guevara, César, Nunes, Isabel L., Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Nunes, Isabel L., editor

Published
2019
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48. Emergence of Equilibria from Individual Strategies in Online Content Diffusion

Author

Altman, Eitan, De Pellegrini, Francesco, El-Azouzi, Rachid, Miorandi, Daniele, and Jimenez, Tania

Subjects
Computer Science - Computer Science and Game Theory, Computer Science - Networking and Internet Architecture, Computer Science - Social and Information Networks, 91A80
Abstract

Social scientists have observed that human behavior in society can often be modeled as corresponding to a threshold type policy. A new behavior would propagate by a procedure in which an individual adopts the new behavior if the fraction of his neighbors or friends having adopted the new behavior exceeds some threshold. In this paper we study the question of whether the emergence of threshold policies may be modeled as a result of some rational process which would describe the behavior of non-cooperative rational members of some social network. We focus on situations in which individuals take the decision whether to access or not some content, based on the number of views that the content has. Our analysis aims at understanding not only the behavior of individuals, but also the way in which information about the quality of a given content can be deduced from view counts when only part of the viewers that access the content are informed about its quality. In this paper we present a game formulation for the behavior of individuals using a meanfield model: the number of individuals is approximated by a continuum of atomless players and for which the Wardrop equilibrium is the solution concept. We derive conditions on the problem's parameters that result indeed in the emergence of threshold equilibria policies. But we also identify some parameters in which other structures are obtained for the equilibrium behavior of individuals.

Published
2012

49. Analysis of Buffer Starvation with Application to Objective QoE Optimization of Streaming Services

Author

Xu, Yuedong, Altman, Eitan, El-Azouzi, Rachid, Haddad, Majed, Elayoubi, Salaheddine, and Jimenez, Tania

Subjects
Computer Science - Performance, Computer Science - Multimedia, Computer Science - Networking and Internet Architecture
Abstract

Our purpose in this paper is to characterize buffer starvations for streaming services. The buffer is modeled as an M/M/1 queue, plus the consideration of bursty arrivals. When the buffer is empty, the service restarts after a certain amount of packets are \emph{prefetched}. With this goal, we propose two approaches to obtain the \emph{exact distribution} of the number of buffer starvations, one of which is based on \emph{Ballot theorem}, and the other uses recursive equations. The Ballot theorem approach gives an explicit result. We extend this approach to the scenario with a constant playback rate using T\`{a}kacs Ballot theorem. The recursive approach, though not offering an explicit result, can obtain the distribution of starvations with non-independent and identically distributed (i.i.d.) arrival process in which an ON/OFF bursty arrival process is considered in this work. We further compute the starvation probability as a function of the amount of prefetched packets for a large number of files via a fluid analysis. Among many potential applications of starvation analysis, we show how to apply it to optimize the objective quality of experience (QoE) of media streaming, by exploiting the tradeoff between startup/rebuffering delay and starvations., Comment: 9 pages, 7 figures; IEEE Infocom 2012

Published
2011
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