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The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform

Christie I. Ezeife - One of the best experts on this subject based on the ideXlab platform.

  • DEXA - Cleaning web pages for effective web content mining
    Lecture Notes in Computer Science, 2006
    Co-Authors: Christie I. Ezeife
    Abstract:

    Classifying and mining noise-free web pages will improve on accuracy of search results as well as search speed, and may benefit web-page organization applications (e.g., keyword-based search engines and taxonomic web page categorization applications). Noise on web pages are irrelevant to the main content on the web pages being mined, and include advertisements, Navigation Bar, and copyright notices. The few existing work on web page cleaning detect noise blocks with exact matching contents but are weak at detecting near duplicate blocks, characterized by items like Navigation Bars. This paper proposes a system, WebPageCleaner, for eliminating noise blocks from web pages for purposes of improving the accuracy and efficiency of web content mining. A vision-based technique is employed for extracting blocks from web pages. Then, relevant web page blocks are identified as those with high importance level by analyzing such physical features of the blocks as the block location, percentage of web links on the block, and level of similarity of block contents to other blocks. Important blocks are exported to be used for web content mining using Naive Bayes text classification. Experiments show that WebPageCleaner leads to a more accurate and efficient web page classification results than comparable existing approaches.

  • Cleaning web pages for effective web content mining
    Lecture Notes in Computer Science, 2006
    Co-Authors: Christie I. Ezeife
    Abstract:

    Classifying and mining noise-free web pages will improve on accuracy of search results as well as search speed, and may benefit web-page organization applications (e.g., keyword-based search engines and taxonomic web page categorization applications). Noise on web pages are irrelevant to the main content on the web pages being mined, and include advertisements, Navigation Bar, and copyright notices. The few existing work on web page cleaning detect noise blocks with exact matching contents but are weak at detecting near duplicate blocks, characterized by items like Navigation Bars. This paper proposes a system, WebPageCleaner, for eliminating noise blocks from web pages for purposes of improving the accuracy and efficiency of web content mining. A vision-based technique is employed for extracting blocks from web pages. Then, relevant web page blocks are identified as those with high importance level by analyzing such physical features of the blocks as the block location, percentage of web links on the block, and level of similarity of block contents to other blocks. Important blocks are exported to be used for web content mining using Naive Bayes text classification. Experiments show that WebPageCleaner leads to a more accurate and efficient web page classification results than comparable existing approaches.

Raquel Pignatelli Silva - One of the best experts on this subject based on the ideXlab platform.

  • from hardware to software evaluating the swipe gestures Navigation feature on mobile phones
    International Conference on Human-Computer Interaction, 2019
    Co-Authors: Lucia Satiko Nomiso, Eduardo Hideki Tanaka, Raquel Pignatelli Silva
    Abstract:

    This paper presents the user experience evaluation of a smartphone feature to allow users to do gestures in a small, pill-shaped button that replaces the typical Android Navigation Bar. This proposed pill-shaped button, located at the bottom of the screen, allows swipe and tap gestures to do the same functions available on the Navigation Bar: go back, go to home screen and open the recent apps. However, the pill-shaped button is smaller than the whole Navigation Bar, which leaves more space to the apps to show their content on screen. In order to evaluate this feature, 252 participants were invited to use it during about 3 months and report any issues using some apps to describe them as well as collect logs remotely. Also, participants were also invited to answer a few user satisfaction surveys after some time using the feature. Based on the findings from this evaluation process, it was possible to fix the issues found and improve the overall usability before the feature hit the market.

  • HCI (21) - From Hardware to Software: Evaluating the Swipe Gestures Navigation Feature on Mobile Phones
    Design User Experience and Usability. Practice and Case Studies, 2019
    Co-Authors: Lucia Satiko Nomiso, Eduardo Hideki Tanaka, Raquel Pignatelli Silva
    Abstract:

    This paper presents the user experience evaluation of a smartphone feature to allow users to do gestures in a small, pill-shaped button that replaces the typical Android Navigation Bar. This proposed pill-shaped button, located at the bottom of the screen, allows swipe and tap gestures to do the same functions available on the Navigation Bar: go back, go to home screen and open the recent apps. However, the pill-shaped button is smaller than the whole Navigation Bar, which leaves more space to the apps to show their content on screen. In order to evaluate this feature, 252 participants were invited to use it during about 3 months and report any issues using some apps to describe them as well as collect logs remotely. Also, participants were also invited to answer a few user satisfaction surveys after some time using the feature. Based on the findings from this evaluation process, it was possible to fix the issues found and improve the overall usability before the feature hit the market.

  • HCI (2) - Improving Mobile User Experience of New Features Through Remote Tests and Evaluation
    Lecture Notes in Computer Science, 2018
    Co-Authors: Lucia Satiko Nomiso, Eduardo Hideki Tanaka, Raquel Pignatelli Silva
    Abstract:

    This paper presents a process to evaluate a new feature which allowed users to do gestures in a fingerprint sensor located at the bottom of smartphones. The idea was, with these gestures in the fingerprint sensor, users could perform all functions available on a typical Android Navigation Bar (go back, go to home screen and open the recent apps), so that the Navigation Bar could be hidden from all screens, allowing the users to enjoy a larger screen in all apps. The whole evaluation process was remotely performed at the end of the development process, with 115 participants receiving a smartphone containing not only the new feature to be evaluated but also a few embedded apps to collect logs, let users raise any issues they found and answer user satisfaction surveys after some time using the feature. The findings from this evaluation process were useful to refine the feature, enhance the user experience and make all stakeholders more confident about the user’s acceptance before releasing it to market.

Yafeng Niu - One of the best experts on this subject based on the ideXlab platform.

  • the effect of logo location in Navigation Bar on web brand recognition based on event related potential
    International Conference on HCI in Business, 2018
    Co-Authors: Yingying Dong, Ningyue Peng, Chengqi Xue, Yafeng Niu
    Abstract:

    In order to study the cognitive process of brand recognition in different positions (left, middle and right) of the web Navigation Bar, this paper adopts the Oddball experimental paradigm in event-related potentials combined with behavioral data for experimental investigation. An analytical comparison of the P300 amplitude of the LOGO located in three certain positions in the Navigation Bar is conducted. The LOGO placed on the left/right can generate larger amplitude than the LOGO placed on the middle. The experimental result shows that LOGO location in Navigation Bar have a great significance on brand recognition. From neural mechanism of visual cognition processing, ERP can objectively and effectively obtain the implicit feedback of web brand recognition from users, which provides a quantitative index for establishing an accurate evaluation model of web brand recognition.

  • HCI (23) - The Effect of LOGO Location in Navigation Bar on Web Brand Recognition Based on Event-Related Potential
    HCI in Business Government and Organizations, 2018
    Co-Authors: Yingying Dong, Ningyue Peng, Chengqi Xue, Yafeng Niu
    Abstract:

    In order to study the cognitive process of brand recognition in different positions (left, middle and right) of the web Navigation Bar, this paper adopts the Oddball experimental paradigm in event-related potentials combined with behavioral data for experimental investigation. An analytical comparison of the P300 amplitude of the LOGO located in three certain positions in the Navigation Bar is conducted. The LOGO placed on the left/right can generate larger amplitude than the LOGO placed on the middle. The experimental result shows that LOGO location in Navigation Bar have a great significance on brand recognition. From neural mechanism of visual cognition processing, ERP can objectively and effectively obtain the implicit feedback of web brand recognition from users, which provides a quantitative index for establishing an accurate evaluation model of web brand recognition.

  • event related potential study on visual selective attention to icon Navigation Bar of digital interface
    International Conference on Engineering Psychology and Cognitive Ergonomics, 2016
    Co-Authors: Yafeng Niu, Chengqi Xue, Haiyan Wang, Lei Zhou, Jing Zhang, Ningyue Peng, Tao Jin
    Abstract:

    In order to investigate the user cognitive processing of visual selective attention to icon Navigation Bar in the digital interface, 20 subjects were required to notice and remember the activated icons in the Navigation Bar selectively and judge whether or not target icon had presented in the Navigation Bar and if so press the button quickly. Their behavior and event-related potential (ERP) data were collected. Experimental results demonstrate that P200 and N400 components of Navigation Bar selective attention exist obvious differences in amplitude and latency under different activated icon quantities. In the recognition process of target stimulus icon, accuracy rate and reaction time both exist regular changes with the activated icon quantities, and target stimulus recognition N200 component distributing in different brain areas exists obvious differences.

  • HCI (6) - Event-Related Potential Study on Visual Selective Attention to Icon Navigation Bar of Digital Interface
    Engineering Psychology and Cognitive Ergonomics, 2016
    Co-Authors: Yafeng Niu, Chengqi Xue, Haiyan Wang, Lei Zhou, Jing Zhang, Ningyue Peng, Tao Jin
    Abstract:

    In order to investigate the user cognitive processing of visual selective attention to icon Navigation Bar in the digital interface, 20 subjects were required to notice and remember the activated icons in the Navigation Bar selectively and judge whether or not target icon had presented in the Navigation Bar and if so press the button quickly. Their behavior and event-related potential (ERP) data were collected. Experimental results demonstrate that P200 and N400 components of Navigation Bar selective attention exist obvious differences in amplitude and latency under different activated icon quantities. In the recognition process of target stimulus icon, accuracy rate and reaction time both exist regular changes with the activated icon quantities, and target stimulus recognition N200 component distributing in different brain areas exists obvious differences.

Lucia Satiko Nomiso - One of the best experts on this subject based on the ideXlab platform.

  • from hardware to software evaluating the swipe gestures Navigation feature on mobile phones
    International Conference on Human-Computer Interaction, 2019
    Co-Authors: Lucia Satiko Nomiso, Eduardo Hideki Tanaka, Raquel Pignatelli Silva
    Abstract:

    This paper presents the user experience evaluation of a smartphone feature to allow users to do gestures in a small, pill-shaped button that replaces the typical Android Navigation Bar. This proposed pill-shaped button, located at the bottom of the screen, allows swipe and tap gestures to do the same functions available on the Navigation Bar: go back, go to home screen and open the recent apps. However, the pill-shaped button is smaller than the whole Navigation Bar, which leaves more space to the apps to show their content on screen. In order to evaluate this feature, 252 participants were invited to use it during about 3 months and report any issues using some apps to describe them as well as collect logs remotely. Also, participants were also invited to answer a few user satisfaction surveys after some time using the feature. Based on the findings from this evaluation process, it was possible to fix the issues found and improve the overall usability before the feature hit the market.

  • HCI (21) - From Hardware to Software: Evaluating the Swipe Gestures Navigation Feature on Mobile Phones
    Design User Experience and Usability. Practice and Case Studies, 2019
    Co-Authors: Lucia Satiko Nomiso, Eduardo Hideki Tanaka, Raquel Pignatelli Silva
    Abstract:

    This paper presents the user experience evaluation of a smartphone feature to allow users to do gestures in a small, pill-shaped button that replaces the typical Android Navigation Bar. This proposed pill-shaped button, located at the bottom of the screen, allows swipe and tap gestures to do the same functions available on the Navigation Bar: go back, go to home screen and open the recent apps. However, the pill-shaped button is smaller than the whole Navigation Bar, which leaves more space to the apps to show their content on screen. In order to evaluate this feature, 252 participants were invited to use it during about 3 months and report any issues using some apps to describe them as well as collect logs remotely. Also, participants were also invited to answer a few user satisfaction surveys after some time using the feature. Based on the findings from this evaluation process, it was possible to fix the issues found and improve the overall usability before the feature hit the market.

  • HCI (2) - Improving Mobile User Experience of New Features Through Remote Tests and Evaluation
    Lecture Notes in Computer Science, 2018
    Co-Authors: Lucia Satiko Nomiso, Eduardo Hideki Tanaka, Raquel Pignatelli Silva
    Abstract:

    This paper presents a process to evaluate a new feature which allowed users to do gestures in a fingerprint sensor located at the bottom of smartphones. The idea was, with these gestures in the fingerprint sensor, users could perform all functions available on a typical Android Navigation Bar (go back, go to home screen and open the recent apps), so that the Navigation Bar could be hidden from all screens, allowing the users to enjoy a larger screen in all apps. The whole evaluation process was remotely performed at the end of the development process, with 115 participants receiving a smartphone containing not only the new feature to be evaluated but also a few embedded apps to collect logs, let users raise any issues they found and answer user satisfaction surveys after some time using the feature. The findings from this evaluation process were useful to refine the feature, enhance the user experience and make all stakeholders more confident about the user’s acceptance before releasing it to market.

Yingying Dong - One of the best experts on this subject based on the ideXlab platform.

  • the effect of logo location in Navigation Bar on web brand recognition based on event related potential
    International Conference on HCI in Business, 2018
    Co-Authors: Yingying Dong, Ningyue Peng, Chengqi Xue, Yafeng Niu
    Abstract:

    In order to study the cognitive process of brand recognition in different positions (left, middle and right) of the web Navigation Bar, this paper adopts the Oddball experimental paradigm in event-related potentials combined with behavioral data for experimental investigation. An analytical comparison of the P300 amplitude of the LOGO located in three certain positions in the Navigation Bar is conducted. The LOGO placed on the left/right can generate larger amplitude than the LOGO placed on the middle. The experimental result shows that LOGO location in Navigation Bar have a great significance on brand recognition. From neural mechanism of visual cognition processing, ERP can objectively and effectively obtain the implicit feedback of web brand recognition from users, which provides a quantitative index for establishing an accurate evaluation model of web brand recognition.

  • HCI (23) - The Effect of LOGO Location in Navigation Bar on Web Brand Recognition Based on Event-Related Potential
    HCI in Business Government and Organizations, 2018
    Co-Authors: Yingying Dong, Ningyue Peng, Chengqi Xue, Yafeng Niu
    Abstract:

    In order to study the cognitive process of brand recognition in different positions (left, middle and right) of the web Navigation Bar, this paper adopts the Oddball experimental paradigm in event-related potentials combined with behavioral data for experimental investigation. An analytical comparison of the P300 amplitude of the LOGO located in three certain positions in the Navigation Bar is conducted. The LOGO placed on the left/right can generate larger amplitude than the LOGO placed on the middle. The experimental result shows that LOGO location in Navigation Bar have a great significance on brand recognition. From neural mechanism of visual cognition processing, ERP can objectively and effectively obtain the implicit feedback of web brand recognition from users, which provides a quantitative index for establishing an accurate evaluation model of web brand recognition.

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