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"abstract": "It is of great significance to explore the influence mechanism of verbal cues on self-voice perception under different conditions. The aim of this study is to probe the effects of verbal and non-verbal conditions on implicit task (experiment 1) and explicit task (experiment 2) of self-voice. Binaural auditory channels were used to present two voices successively, and the speakers included the participants, familiar and strangers. In the experiment 1, participants were asked to judge whether the pair of stimuli were pronounced by the same speaker. In the experiment 2, participants were asked to identify whether one of the stimuli was their own voice. The results show that there is no difference in individual voice perception of self (vs. non-self) under different conditions of verbal cues in the implicit task. In the explicit task, there is less accuracy in recognizing the voice of self than that of non-self. It is also found that there exists no difference in individual self-voice perception at different levels of factors.",
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"content": "It is of great significance to explore the influence mechanism of verbal cues on self-voice perception under different conditions. The aim of this study is to probe the effects of verbal and non-verbal conditions on implicit task (experiment 1) and explicit task (experiment 2) of self-voice. Binaural auditory channels were used to present two voices successively, and the speakers included the participants, familiar and strangers. In the experiment 1, participants were asked to judge whether the pair of stimuli were pronounced by the same speaker. In the experiment 2, participants were asked to identify whether one of the stimuli was their own voice. The results show that there is no difference in individual voice perception of self (vs. non-self) under different conditions of verbal cues in the implicit task. In the explicit task, there is less accuracy in recognizing the voice of self than that of non-self. It is also found that there exists no difference in individual self-voice perception at different levels of factors.",
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"abstract": "The effectiveness of Augmented Reality (AR) for spatial applications is likely influenced by the extent to which users perceive that they can act on virtual objects as if they are real. While there are some promising initial results that action capabilities in AR are perceived similarly to the real world, AR differs from completely real-world viewing both in the visual information available within a restricted field of view (FOV) and in the ways that perceptual-motor feedback can be provided for the outcome of actions. We addressed both of these differences in a study of judgments of passing through an AR aperture defined by two moveable virtual walls presented via the Microsoft HoloLens. First, we investigated the possible effects of viewing distance on affordance judgments, predicting greater error in judgments at a close distance because of the inability to see the entirety of the aperture within the FOV. Second, we explored the effect of feedback on affordance judgments, predicting that verbal feedback about whether a judgment was correct would be sufficient to see improvements in judgments over time. In contrast to our predictions for distance, we found that judgments for passing through were closer to actual shoulder width when viewed at a distance near the aperture (0.85 m) compared to a farther viewing point (3.20 m). Verbal feedback reduced error over trials, but only at the farther distance, possibly because the judgments at the near distance were close to the ceiling of performance. These findings have implications for tasks that require accurate perception of action capabilities in AR, such as training procedures.",
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"abstract": "As haptics becomes an integral component of scientific data visualization systems, there is a growing need to study \"haptic glyphs\" (building blocks for displaying information through the sense of touch) and quantify their information transmission capability. The present study investigated the channel capacity for transmitting information through stiffness or force magnitude. Specifically, we measured the number of stiffness or force- magnitude levels that can be reliably identified in an absolute identification paradigm. The range of stiffness and force magnitude used in the present study, 0.2-3.0 N/mm and 0.1-5.0 N, respectively, was typical of the parameter values encountered in most virtual reality or data visualization applications. Ten individuals participated in a stiffness identification experiment, each completing 250 trials. Subsequently, four of these individuals and six additional participants completed 250 trials in a force-magnitude identification experiment. A custom-designed 3 degrees-of-freedom force-feedback device, the ministick, was used for stimulus delivery. The results showed an average information transfer of 1.46 bits for stiffness identification, or equivalently, 2.8 correctly-identifiable stiffness levels. The average information transfer for force magnitude was 1.54 bits, or equivalently, 2.9 correctly-identifiable force magnitudes. Therefore, on average, the participants could only reliably identify 2-3 stiffness levels in the range of 0.2-3.0 N/mm, and 2-3 force- magnitude levels in the range of 0.1-5.0 N. Individual performance varied from 1 to 4 correctly-identifiable stiffness levels and 2 to 4 correctly-identifiable force-magnitude levels. Our results are consistent with reported information transfers for haptic stimuli. Based on the present study, it is recommended that 2 stiffness or force-magnitude levels (i.e., high and low) be used with haptic glyphs in a data visualization system, with an additional third level (medium) for more experienced users.",
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"abstract": "Haptic media, as a third type of 3D media besides 3D visual and 3D audio, is essential to realize the true 3D multimedia. Recently, pseudo-haptics has gained considerable attention since it can produce a haptic feeling without specific hardware. We first categorized pseudo-haptics into three types based on perception phases and virtual hand form. A series of experiments quantitatively proved that all three types of pseudo-haptics can be perceived and exhibit interesting phenomena, e.g., pseudo-haptics might be deduced by real haptic sensation or specific visual effect.",
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"abstract": "Workplace fatigue increases the risk of injuries or other accidents, and there is growing interest in developing means for the early detection of the signs of exhaustion. The ubiquity of smartphone use with integrated sensors allows the possibility of detecting the early signs of fatigue. Typing, chatting, Internet surfing and track-screen gestures are the most common tasks done by smartphone users in a daily manner. These tasks can be used to detect human fatigue in a non-intrusive way. This paper presents a human fatigue detection method based on virtual keyboard timing metrics which is calculated from smartphone text entry. This is achieved by using smartphone application that records keystroke events time and uses them as metrics to identify whether the user is fatigued or alert. Text entry error rate is considered as a type of psychomotor measures for fatigue/ alertness is utilized as a ground-truth metric in this study. A binary classifier based on support vector machine (SVM) classifier is suggested to identify the fatigue/alertness status of users participated in this study. The obtained results showed that the suggested method is highly accurate. The promising findings will facilitate development of a low-cost and non-intrusive mobile instrument for fatigue/alertness detection.",
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"title": "2006 18th International Conference on Pattern Recognition",
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"doi": "10.1109/ICPR.2006.522",
"title": "Extraction of trabecular structures of mandible excluding tooth roots on dental panoramic radiographs using mathematical morphology",
"normalizedTitle": "Extraction of trabecular structures of mandible excluding tooth roots on dental panoramic radiographs using mathematical morphology",
"abstract": "In this paper, an extraction method of trabecular structures from dental panoramic radiographs using mathematical morphological operations is proposed. It can extract trabeculae excluding roots of teeth and enables the assessment of tooth extraction for trabecular pattern. A measurement method of the lengths and directions of trabecular segments is also proposed in this paper. It is suggested that the measurements of healthy and osteoporotic examples support our hypothesis that the trabeculae parallel to the roots are reduced more than those perpendicular to the roots by osteoporosis",
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"content": "In this paper, an extraction method of trabecular structures from dental panoramic radiographs using mathematical morphological operations is proposed. It can extract trabeculae excluding roots of teeth and enables the assessment of tooth extraction for trabecular pattern. A measurement method of the lengths and directions of trabecular segments is also proposed in this paper. It is suggested that the measurements of healthy and osteoporotic examples support our hypothesis that the trabeculae parallel to the roots are reduced more than those perpendicular to the roots by osteoporosis",
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"normalizedAbstract": "In this paper, an extraction method of trabecular structures from dental panoramic radiographs using mathematical morphological operations is proposed. It can extract trabeculae excluding roots of teeth and enables the assessment of tooth extraction for trabecular pattern. A measurement method of the lengths and directions of trabecular segments is also proposed in this paper. It is suggested that the measurements of healthy and osteoporotic examples support our hypothesis that the trabeculae parallel to the roots are reduced more than those perpendicular to the roots by osteoporosis",
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"affiliation": "Hiroshima University, Japan",
"fullName": "A. Asano",
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"fullName": "T. Tambe",
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"fullName": "A. Taguchi",
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"fullName": "Chie Muraki Asano",
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"fullName": "T. Nakamoto",
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"fullName": "K. Tanimoto",
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"fullName": "T. Hinamoto",
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"title": "18th IEEE Symposium on Computer-Based Medical Systems (CBMS'05)",
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"abstractUrl": "/proceedings-article/cbms/2005/23550003/12OmNy5R3sF",
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"title": "Self-Supervised Learning with Masked Image Modeling for Teeth Numbering, Detection of Dental Restorations, and Instance Segmentation in Dental Panoramic Radiographs",
"doi": null,
"abstractUrl": "/proceedings-article/wacv/2023/934600f583/1L8qxxnly2k",
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"id": "proceedings/wacv/2023/9346/0",
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"proceeding": {
"id": "12OmNwBjP17",
"title": "2016 8th International Conference on Information Technology in Medicine and Education (ITME)",
"acronym": "itme",
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"doi": "10.1109/ITME.2016.0101",
"title": "Application of a 3D Haptic Virtual Reality Simulation System for Dental Crown Preparation Training",
"normalizedTitle": "Application of a 3D Haptic Virtual Reality Simulation System for Dental Crown Preparation Training",
"abstract": "Objective To evaluate the application of a 3D haptic virtual reality simulation system for training dental crown preparation in dental preclinical education. Methods Fifteen students (novice group) and 12 prosthodontic residents (residents groups) were included in this study. All of the participants took the tests to perform tooth preparation for a metal-ceramic crown using a 3D haptic virtual reality simulator (Simodent). The preparation outcome was evaluated and the elapsed time for preparation was also recorded for each participant. The percent of occurrence of undercut, damage to adjacent tooth and incorrect occlusal reduction were calculated for both groups. Besides, anonymous questionnaires regarding participants' attitudes towards the experience about using 3D haptic VR simulator were analyzed. Results There were distinguish differences between novice group and residents group. Novice group spend almost double time then the experienced residents but with relatively lower scores. Concerning the percent of occurrence of undercut, damage to the adjacent teeth and incorrect occlusal reduction, higher occurrence in novice group were demonstrated. The results of the present study indicated the ability of Simodent to distinguish between novice and expert when performing crown preparation tasks. Conclusion The findings indicated the validity of 3D haptic virtual reality simulator for dental training purposes.",
"abstracts": [
{
"abstractType": "Regular",
"content": "Objective To evaluate the application of a 3D haptic virtual reality simulation system for training dental crown preparation in dental preclinical education. Methods Fifteen students (novice group) and 12 prosthodontic residents (residents groups) were included in this study. All of the participants took the tests to perform tooth preparation for a metal-ceramic crown using a 3D haptic virtual reality simulator (Simodent). The preparation outcome was evaluated and the elapsed time for preparation was also recorded for each participant. The percent of occurrence of undercut, damage to adjacent tooth and incorrect occlusal reduction were calculated for both groups. Besides, anonymous questionnaires regarding participants' attitudes towards the experience about using 3D haptic VR simulator were analyzed. Results There were distinguish differences between novice group and residents group. Novice group spend almost double time then the experienced residents but with relatively lower scores. Concerning the percent of occurrence of undercut, damage to the adjacent teeth and incorrect occlusal reduction, higher occurrence in novice group were demonstrated. The results of the present study indicated the ability of Simodent to distinguish between novice and expert when performing crown preparation tasks. Conclusion The findings indicated the validity of 3D haptic virtual reality simulator for dental training purposes.",
"__typename": "ArticleAbstractType"
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],
"normalizedAbstract": "Objective To evaluate the application of a 3D haptic virtual reality simulation system for training dental crown preparation in dental preclinical education. Methods Fifteen students (novice group) and 12 prosthodontic residents (residents groups) were included in this study. All of the participants took the tests to perform tooth preparation for a metal-ceramic crown using a 3D haptic virtual reality simulator (Simodent). The preparation outcome was evaluated and the elapsed time for preparation was also recorded for each participant. The percent of occurrence of undercut, damage to adjacent tooth and incorrect occlusal reduction were calculated for both groups. Besides, anonymous questionnaires regarding participants' attitudes towards the experience about using 3D haptic VR simulator were analyzed. Results There were distinguish differences between novice group and residents group. Novice group spend almost double time then the experienced residents but with relatively lower scores. Concerning the percent of occurrence of undercut, damage to the adjacent teeth and incorrect occlusal reduction, higher occurrence in novice group were demonstrated. The results of the present study indicated the ability of Simodent to distinguish between novice and expert when performing crown preparation tasks. Conclusion The findings indicated the validity of 3D haptic virtual reality simulator for dental training purposes.",
"fno": "3906a424",
"keywords": [
"Haptic Interfaces",
"Dentistry",
"Three Dimensional Displays",
"Virtual Reality",
"Training",
"Teeth",
"Virtual Reality Simulator",
"Haptic Feedback",
"Dental Training",
"Tooth Preparation",
"3 D Image"
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{
"affiliation": null,
"fullName": "Fu Wang",
"givenName": "Fu",
"surname": "Wang",
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{
"affiliation": null,
"fullName": "Ying Liu",
"givenName": "Ying",
"surname": "Liu",
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{
"affiliation": null,
"fullName": "Min Tian",
"givenName": "Min",
"surname": "Tian",
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{
"affiliation": null,
"fullName": "Yumei Zhang",
"givenName": "Yumei",
"surname": "Zhang",
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{
"affiliation": null,
"fullName": "Shaofeng Zhang",
"givenName": "Shaofeng",
"surname": "Zhang",
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{
"affiliation": null,
"fullName": "Jihua Chen",
"givenName": "Jihua",
"surname": "Chen",
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],
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"title": "2013 XV Symposium on Virtual and Augmented Reality (SVR)",
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"id": "trans/th/2014/01/06737331",
"title": "Haptic Simulation of Organ Deformation and Hybrid Contacts in Dental Operations",
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"abstractUrl": "/journal/th/2014/01/06737331/13rRUy2YLT8",
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"title": "IEEE Transactions on Haptics",
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"id": "trans/th/2012/04/tth2012040332",
"title": "iDental: A Haptic-Based Dental Simulator and Its Preliminary User Evaluation",
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"abstractUrl": "/journal/th/2012/04/tth2012040332/13rRUy2YLYG",
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"abstractUrl": "/journal/th/2016/02/07412781/13rRUzpzeBh",
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"title": "IEEE Transactions on Haptics",
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"id": "proceedings/svr/2018/0604/0/060400a210",
"title": "Visual and Haptic Trajectories Applied to Dental Anesthesia Training: Conceptualization, Implementation and Preliminary Evaluation",
"doi": null,
"abstractUrl": "/proceedings-article/svr/2018/060400a210/1cJ7y4QWf7y",
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"id": "proceedings/svr/2018/0604/0",
"title": "2018 20th Symposium on Virtual and Augmented Reality (SVR)",
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{
"proceeding": {
"id": "12OmNviZlhM",
"title": "2017 9th International Conference on Measuring Technology and Mechatronics Automation (ICMTMA)",
"acronym": "icmtma",
"groupId": "1002837",
"volume": "0",
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"year": "2017",
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"article": {
"id": "12OmNwpXROH",
"doi": "10.1109/ICMTMA.2017.0117",
"title": "Dental Tissue Engineering on Human Dental Pulp Stem Cells Based on Tooth Development",
"normalizedTitle": "Dental Tissue Engineering on Human Dental Pulp Stem Cells Based on Tooth Development",
"abstract": "Our long-term objective is to isolate and characteristics human dental pulp stem cells (hDPSCs) derived from human third molar pulp. We demonstrated the successful use of tissue engineering approaches to generate small, bioengineered tooth crowns from harvested pig and rat postnatal dental stem cells (DSCs). To facilitate characterizations of human DSCs, we have developed a novel radiographic staging system to accurately correlate human third molar tooth developmental stage with anticipated harvested DSC yield. Another aim was to verify the expression with dentin sialoprotein (DSPP), dentin sialoprotein (DSP), dentin matrixprotein 1 (DMP-1) and vimentin. For characterisation, proliferation capacity, phenotypic properties, and differentiation characteristics were utilised. Stem cells isolated from hNDP were analysed by flow cytometry and immunocytochemistry. Thus, both EMPs are important during hDPSCs proliferation. During cytodifferentiation, EMPs are essential for the complete differentiation of odontoblasts by up-regulating the expression of DSPP, DSP, DMP-1 and vimentin. Stimulation of these cells by EMPs significantly increases alkaline phosphatase(ALP) activity. ALP activity was expressed as OD 405 nm/mg of protein A increase was observed in ALP activity of hDPSCs during the culturing of EMPs. According to the differentiation and proliferation potential of HDPSC was shown. We conclude that radiographic developmental staging can be used to accurately assess the utility of harvested human teeth for future dental tissue engineering applications.",
"abstracts": [
{
"abstractType": "Regular",
"content": "Our long-term objective is to isolate and characteristics human dental pulp stem cells (hDPSCs) derived from human third molar pulp. We demonstrated the successful use of tissue engineering approaches to generate small, bioengineered tooth crowns from harvested pig and rat postnatal dental stem cells (DSCs). To facilitate characterizations of human DSCs, we have developed a novel radiographic staging system to accurately correlate human third molar tooth developmental stage with anticipated harvested DSC yield. Another aim was to verify the expression with dentin sialoprotein (DSPP), dentin sialoprotein (DSP), dentin matrixprotein 1 (DMP-1) and vimentin. For characterisation, proliferation capacity, phenotypic properties, and differentiation characteristics were utilised. Stem cells isolated from hNDP were analysed by flow cytometry and immunocytochemistry. Thus, both EMPs are important during hDPSCs proliferation. During cytodifferentiation, EMPs are essential for the complete differentiation of odontoblasts by up-regulating the expression of DSPP, DSP, DMP-1 and vimentin. Stimulation of these cells by EMPs significantly increases alkaline phosphatase(ALP) activity. ALP activity was expressed as OD 405 nm/mg of protein A increase was observed in ALP activity of hDPSCs during the culturing of EMPs. According to the differentiation and proliferation potential of HDPSC was shown. We conclude that radiographic developmental staging can be used to accurately assess the utility of harvested human teeth for future dental tissue engineering applications.",
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"normalizedAbstract": "Our long-term objective is to isolate and characteristics human dental pulp stem cells (hDPSCs) derived from human third molar pulp. We demonstrated the successful use of tissue engineering approaches to generate small, bioengineered tooth crowns from harvested pig and rat postnatal dental stem cells (DSCs). To facilitate characterizations of human DSCs, we have developed a novel radiographic staging system to accurately correlate human third molar tooth developmental stage with anticipated harvested DSC yield. Another aim was to verify the expression with dentin sialoprotein (DSPP), dentin sialoprotein (DSP), dentin matrixprotein 1 (DMP-1) and vimentin. For characterisation, proliferation capacity, phenotypic properties, and differentiation characteristics were utilised. Stem cells isolated from hNDP were analysed by flow cytometry and immunocytochemistry. Thus, both EMPs are important during hDPSCs proliferation. During cytodifferentiation, EMPs are essential for the complete differentiation of odontoblasts by up-regulating the expression of DSPP, DSP, DMP-1 and vimentin. Stimulation of these cells by EMPs significantly increases alkaline phosphatase(ALP) activity. ALP activity was expressed as OD 405 nm/mg of protein A increase was observed in ALP activity of hDPSCs during the culturing of EMPs. According to the differentiation and proliferation potential of HDPSC was shown. We conclude that radiographic developmental staging can be used to accurately assess the utility of harvested human teeth for future dental tissue engineering applications.",
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"keywords": [
"Biochemistry",
"Biomedical Materials",
"Cellular Biophysics",
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"Diagnostic Radiography",
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"Odontoblast Differentiation",
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"H DPSC Proliferation",
"EMP",
"Immunocytochemistry",
"Flow Cytometry",
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"Proliferation Capacity",
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"Human DSC",
"Rat Postnatal Dental Stem Cells",
"Harvested Pig",
"Bioengineered Tooth Crowns",
"Human Third Molar Pulp",
"Human Dental Pulp Stem Cells",
"Dental Tissue Engineering",
"Dentistry",
"Teeth",
"Stem Cells",
"In Vivo",
"Tissue Engineering",
"Digital Signal Processing",
"In Vitro",
"Dental Pulp Stem Cells",
"EM Ps",
"DS Cs",
"DSPP",
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],
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"affiliation": null,
"fullName": "Cui Ling-Ling",
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"proceeding": {
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"title": "2017 IEEE International Symposium on Mixed and Augmented Reality (ISMAR-Adjunct)",
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"abstract": "Digital impressions of teeth, obtained through intra-oral scanning, allow for more efficient and cost effective treatments of many dental indications. Current state-of-the-art intra-oral impression acquisition systems make use of a separate monitor to show the scanning progress, forcing the dentist to divert attention away from the scanner and the patient. In this paper, we present an augmented reality based solution to this problem. During the scanning process, an optical see-through head-mounted display is used to show an online overlay of the dynamic dental model onto the patient's teeth. The dentist can then fully focus on the patient and the scanner, while still being able to keep track of the current state of the model. This type of novel application, which fundamentally changes the humancomputer interaction of intra-oral scanning systems, requires a fast and accurate registration of a dynamically growing model onto a glossy, partially occluded surface at a very small scale. To meet this demand, we propose application tailored algorithms for indirect high accuracy online 3D teeth tracking and optical see-through head-mounted display calibration. Experimental results indicate that our system does have a potential to noticeably facilitate intraoral scanning in the future.",
"abstracts": [
{
"abstractType": "Regular",
"content": "Digital impressions of teeth, obtained through intra-oral scanning, allow for more efficient and cost effective treatments of many dental indications. Current state-of-the-art intra-oral impression acquisition systems make use of a separate monitor to show the scanning progress, forcing the dentist to divert attention away from the scanner and the patient. In this paper, we present an augmented reality based solution to this problem. During the scanning process, an optical see-through head-mounted display is used to show an online overlay of the dynamic dental model onto the patient's teeth. The dentist can then fully focus on the patient and the scanner, while still being able to keep track of the current state of the model. This type of novel application, which fundamentally changes the humancomputer interaction of intra-oral scanning systems, requires a fast and accurate registration of a dynamically growing model onto a glossy, partially occluded surface at a very small scale. To meet this demand, we propose application tailored algorithms for indirect high accuracy online 3D teeth tracking and optical see-through head-mounted display calibration. Experimental results indicate that our system does have a potential to noticeably facilitate intraoral scanning in the future.",
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"normalizedAbstract": "Digital impressions of teeth, obtained through intra-oral scanning, allow for more efficient and cost effective treatments of many dental indications. Current state-of-the-art intra-oral impression acquisition systems make use of a separate monitor to show the scanning progress, forcing the dentist to divert attention away from the scanner and the patient. In this paper, we present an augmented reality based solution to this problem. During the scanning process, an optical see-through head-mounted display is used to show an online overlay of the dynamic dental model onto the patient's teeth. The dentist can then fully focus on the patient and the scanner, while still being able to keep track of the current state of the model. This type of novel application, which fundamentally changes the humancomputer interaction of intra-oral scanning systems, requires a fast and accurate registration of a dynamically growing model onto a glossy, partially occluded surface at a very small scale. To meet this demand, we propose application tailored algorithms for indirect high accuracy online 3D teeth tracking and optical see-through head-mounted display calibration. Experimental results indicate that our system does have a potential to noticeably facilitate intraoral scanning in the future.",
"fno": "6327a097",
"keywords": [
"Augmented Reality",
"Biomedical Equipment",
"Dentistry",
"Helmet Mounted Displays",
"Human Computer Interaction",
"Image Registration",
"Medical Image Processing",
"Augmented Reality",
"Dental Treatments",
"Head Mounted Display",
"Intra Oral Impression Acquisition Systems",
"Human Computer Interaction",
"Growing Model Registration",
"Online 3 D Teeth Tracking",
"Dynamic Dental Model",
"User Friendly Intra Oral Scanning",
"Calibration",
"Teeth",
"Dentistry",
"Three Dimensional Displays",
"Augmented Reality",
"Glass",
"Cameras",
"Intra Oral Scanning",
"Augmented Reality",
"HMD Calibration",
"Implicit Pose Estimation"
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"authors": [
{
"affiliation": "Comput. Vision Lab., ETH Zurich, Zurich, Switzerland",
"fullName": "Janine Thoma",
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{
"affiliation": "Comput. Vision Lab., ETH Zurich, Zurich, Switzerland",
"fullName": "Michal Havlena",
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"affiliation": "MHT Optic Res. AG, Switzerland",
"fullName": "Severin Stalder",
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{
"affiliation": "PSI, KU Leuven, Leuven, Belgium",
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{
"proceeding": {
"id": "12OmNviHKdI",
"title": "2015 7th International Conference on Information Technology in Medicine and Education (ITME)",
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"article": {
"id": "12OmNywxlO7",
"doi": "10.1109/ITME.2015.173",
"title": "Use of Tooth Guide Trainer on Dental Students' Training of Shade Matching",
"normalizedTitle": "Use of Tooth Guide Trainer on Dental Students' Training of Shade Matching",
"abstract": "ObjectiveTo evaluate the effectiveness of tooth guide trainer software (TGT) on the teaching of shade matching to dental students. MethodsForty undergraduate students were included in this study. All of the students learned theory knowledge of shade matching firstly and then were divided into two groups with 12 boys and 8 girls in each group. Students in one group accepted shade matching training with TGT. The other group didn't accept the TGT training. Then the shade matching ability of students in each group was evaluated by an experienced clinician. ResultsANOVA analysis showed that both TGT training and gender of the students significantly affected the shade matching ability of students. The group with TGT software training had significant higher score in shade matching than that of the group without TGT training (P",
"abstracts": [
{
"abstractType": "Regular",
"content": "ObjectiveTo evaluate the effectiveness of tooth guide trainer software (TGT) on the teaching of shade matching to dental students. MethodsForty undergraduate students were included in this study. All of the students learned theory knowledge of shade matching firstly and then were divided into two groups with 12 boys and 8 girls in each group. Students in one group accepted shade matching training with TGT. The other group didn't accept the TGT training. Then the shade matching ability of students in each group was evaluated by an experienced clinician. ResultsANOVA analysis showed that both TGT training and gender of the students significantly affected the shade matching ability of students. The group with TGT software training had significant higher score in shade matching than that of the group without TGT training (P",
"__typename": "ArticleAbstractType"
}
],
"normalizedAbstract": "ObjectiveTo evaluate the effectiveness of tooth guide trainer software (TGT) on the teaching of shade matching to dental students. MethodsForty undergraduate students were included in this study. All of the students learned theory knowledge of shade matching firstly and then were divided into two groups with 12 boys and 8 girls in each group. Students in one group accepted shade matching training with TGT. The other group didn't accept the TGT training. Then the shade matching ability of students in each group was evaluated by an experienced clinician. ResultsANOVA analysis showed that both TGT training and gender of the students significantly affected the shade matching ability of students. The group with TGT software training had significant higher score in shade matching than that of the group without TGT training (P",
"fno": "8302a718",
"keywords": [
"Training",
"Color",
"Dentistry",
"Image Color Analysis",
"Software",
"Teeth",
"Teaching",
"Dental",
"Shade Matching",
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],
"authors": [
{
"affiliation": null,
"fullName": "Ling Zhang",
"givenName": "Ling",
"surname": "Zhang",
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{
"affiliation": null,
"fullName": "Jing Fan",
"givenName": "Jing",
"surname": "Fan",
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{
"affiliation": null,
"fullName": "Min Tian",
"givenName": "Min",
"surname": "Tian",
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{
"affiliation": null,
"fullName": "Guofeng Wu",
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"affiliation": null,
"fullName": "Shaofeng Zhang",
"givenName": "Shaofeng",
"surname": "Zhang",
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{
"affiliation": null,
"fullName": "Jihua Chen",
"givenName": "Jihua",
"surname": "Chen",
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"content": "Algorithms of agglomerative hierarchical clustering using asymmetric similarity measures are studied. We classify linkage methods into two categories of bottom-up methods and top-down methods. The bottom-up methods first defines a similarity measure between two object, and extends it to similarity between clusters. In contrast, top-down methods directly define similarity between clusters. In classical linkage methods based on symmetric similarity measures, the single linakge, complete linkage, and average linkage are bottom-up, while the centroid method and the Ward methods are top-down. We propose two a top down method and a family of bottom-up method using asymmetric similarity measures. A dendrogram which is the output of hierarchical clustering often has reversals. We show conditions that dendrogram have no reversals. It is proved that the proposed methods have no reversals in the dendrograms. Two different techniques to show asymmetry in the dendrogram are used. Examples based on real data show how the methods work.",
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"abstract": "Clustering algorithms are used as data analysis tools in a wide variety of applications in Biology. Clustering has become especially important in protein structure prediction and virtual high throughput screening methods. In protein structure prediction, clustering is used to structure the conformational space of thousands of protein models. In virtual high throughput screening, databases with millions of drug-like molecules are organized by structural similarity, e.g. common scaffolds. The tree-like dendrogram structure obtained from hierarchical clustering can provide a qualitative overview of the results, which is important for focusing detailed analysis. However, in practice it is difficult to relate specific components of the dendrogram directly back to the objects of which it is comprised and to display all desired information within the two dimensions of the dendrogram. The current work presents a hierarchical agglomerative clustering method termed bcl::Cluster. bcl::Cluster utilizes the Pymol Molecular Graphics System to graphically depict dendrograms in three dimensions. This allows simultaneous display of relevant biological molecules as well as additional information about the clusters and the members comprising them.",
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"abstract": "This paper represents a low complexity image compression algorithm by application of the two-dimensional discrete wavelet transform and the estimation of the detail matrices from the information matrix of the transformed image, using an adaptable RLS filter which will estimate the detail matrices with universal coefficients. The reconstructed image will be synthesized by using the estimated detail matrices and information matrix provided by the Wavelet transform.",
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"id": "12OmNC8MsKY",
"doi": "10.1109/SERVICES.2007.21",
"title": "Bluejay: A Highly Scalable and Integrative Visual Environment for Genome Exploration",
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"abstract": "Many questions that biologists want to answer using the information available from completely sequenced genomes are complex. A graphical environment allows users to visually explore and operate on a sequence. Sequence and annotation data exists in bewildering varieties of types and levels of detail. The graphical environment therefore needs to adapt to this variation to provide the user the best possible visual representation of genomic data in a given context. As more and more online tools and services become available for biologists, mediating software should also be able to integrate and link to them. The Bluejay browser is a Java-based visual environment for exploring biological sequences. Uniquely, Bluejay fully integrates existing gene expression software into a genomic context. Bluejay also differentiates itself from most form-based HTML sequence browsers because it: (i) is highly scalable so that it can visualize a wide range of genomic objects ranging from a large whole genome down to individual nucleotides by using data-transformational Web services; and (ii) dynamically discovers and provides links to disparate resources such as gene annotation data (via XLinks) and semantically- described biological Web Services (via the BioMOBY protocol).",
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"content": "Many questions that biologists want to answer using the information available from completely sequenced genomes are complex. A graphical environment allows users to visually explore and operate on a sequence. Sequence and annotation data exists in bewildering varieties of types and levels of detail. The graphical environment therefore needs to adapt to this variation to provide the user the best possible visual representation of genomic data in a given context. As more and more online tools and services become available for biologists, mediating software should also be able to integrate and link to them. The Bluejay browser is a Java-based visual environment for exploring biological sequences. Uniquely, Bluejay fully integrates existing gene expression software into a genomic context. Bluejay also differentiates itself from most form-based HTML sequence browsers because it: (i) is highly scalable so that it can visualize a wide range of genomic objects ranging from a large whole genome down to individual nucleotides by using data-transformational Web services; and (ii) dynamically discovers and provides links to disparate resources such as gene annotation data (via XLinks) and semantically- described biological Web Services (via the BioMOBY protocol).",
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"affiliation": "University of Calgary",
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"affiliation": "University of Calgary",
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"affiliation": "University of Calgary",
"fullName": "Andrew C. Ah-Seng",
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"affiliation": "University of Calgary",
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"abstract": "For decades, it has been a challenge for biologists to identify genomic islands (GIs) within a bacterial genome as they usually rapidly evolve. The purpose of this research is to develop an application which will analyse DNA sequences, enabling researchers to be up-to-date with bacterial evolution. A Java-based GI detection tool, “Genomic Islands Detection Tool (GIDT)\" is introduced to detect GI regions by using a number of nucleotide-based statistical methods and genic methods (including GC-content variation, codon usage bias, dinucleotide frequency bias, tetranucleotide frequency bias, and k-mer signature analysis) and identification of mobility genes. It takes as input genome files in embl/genbank — file formats and returns probable GI regions in a tree-view display along with a circular-view display. GIDT is a simple tool which uses six GI identification algorithms and visually displays probable GI regions in a given genome. It runs on Microsoft windows, MacOS and Linux.",
"abstracts": [
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"content": "For decades, it has been a challenge for biologists to identify genomic islands (GIs) within a bacterial genome as they usually rapidly evolve. The purpose of this research is to develop an application which will analyse DNA sequences, enabling researchers to be up-to-date with bacterial evolution. A Java-based GI detection tool, “Genomic Islands Detection Tool (GIDT)\" is introduced to detect GI regions by using a number of nucleotide-based statistical methods and genic methods (including GC-content variation, codon usage bias, dinucleotide frequency bias, tetranucleotide frequency bias, and k-mer signature analysis) and identification of mobility genes. It takes as input genome files in embl/genbank — file formats and returns probable GI regions in a tree-view display along with a circular-view display. GIDT is a simple tool which uses six GI identification algorithms and visually displays probable GI regions in a given genome. It runs on Microsoft windows, MacOS and Linux.",
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"affiliation": "Department of Computer Science and Engineering, University of Mauritius",
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"title": "2009 International Joint Conference on Bioinformatics, Systems Biology and Intelligent Computing (IJCBS)",
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"title": "Investigating Gene and MicroRNA Expression in Glioblastoma",
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"abstract": "Glioblastoma is the most common primary brain tumor in adults. Here we present an integrated analysis of microRNA expression and gene expression in 237 tumor tissues and 10 normal tissues. We indentified 1,236 genes, and 131 pathways significantly differentially expressed between tumor and normal tissues. We also indentified 98 differentially expressed microRNAs, 22 of which have been reported to affect glioblastoma and 73 of which to affect cancers and brain diseases. We found one experimentally validated microRNA target gene and 1,094 miRNA-target gene pairs in our datasets which were predicted by miRanda algorithm, 16 of the 661 target genes are tumor suppressor genes and 5 are oncogenes. These findings gave important clues to study of the carcinogenic process in glioblastomas.",
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"content": "Glioblastoma is the most common primary brain tumor in adults. Here we present an integrated analysis of microRNA expression and gene expression in 237 tumor tissues and 10 normal tissues. We indentified 1,236 genes, and 131 pathways significantly differentially expressed between tumor and normal tissues. We also indentified 98 differentially expressed microRNAs, 22 of which have been reported to affect glioblastoma and 73 of which to affect cancers and brain diseases. We found one experimentally validated microRNA target gene and 1,094 miRNA-target gene pairs in our datasets which were predicted by miRanda algorithm, 16 of the 661 target genes are tumor suppressor genes and 5 are oncogenes. These findings gave important clues to study of the carcinogenic process in glioblastomas.",
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"Micro RNA",
"Gene Expression",
"Pathway"
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"affiliation": null,
"fullName": "Hua Dong",
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"surname": "Dong",
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{
"affiliation": null,
"fullName": "Hoicheong Siu",
"givenName": "Hoicheong",
"surname": "Siu",
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"affiliation": null,
"fullName": "Li Luo",
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"fullName": "Xiangzhong Fang",
"givenName": "Xiangzhong",
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"fullName": "Li Jin",
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"abstract": "The integration of gene expression datasets with gene function information provides valuable insights in unraveling the molecular mechanisms of the brain. In this paper, gene expression maps, acquired by the technique of voxelation, are analyzed using an atlas-based framework and the extracted spatial information is employed to organize genes in significant clusters. Gene function enrichment analysis of clusters enabled exploration of the relationships among brain regions, gene expression and gene function. In addition, the analysis revealed new function categories, for example biological process for the gene Pbx3, cellular component and biological process for the gene Ppplrlb. Our work confirms the hypothesis that genes of similar spatial expression patterns display similar functions indicating that our methodology could assist in the function identification of unannotated genes.",
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"abstract": "Analyzing microarray gene expression data provides biologists deep insights into gene functions and gene regulatory network. In this paper, we propose a novel efficient algorithm FCPminer to mine top-k frequent closed patterns (FCPs) of higher support with length no less than minL from gene expression data. FCPminer employs a prefix fp-tree data structure, with top-down best first search strategy, such that FCPs of adequate length with highest supports are firstly mined. Compared with existing top-k FCP mining algorithms, FCPminer is much more efficient as it avoids expanding nodes with inadequate length (less than minL) or low support (ranked below top-k) during mining process. In addition, FCPminer further improves mining efficiency by employing a hash-based closedness checking method. Experimental results on real biological and synthetic data show that our proposed FCPminer outperforms existing state-of the art algorithms with high efficiency, especially for large and dense datasets.",
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"abstract": "Timelines are used as the basis for representing events over time. When they are combined with a geographical map, they show the spatiotemporal pattern of those events. This spatiotemporal line depicts temporal pattern of events with respect to their spatial attributes. To help users observe patterns with respect to different spatial viewpoints and periodical constraints, we propose an interactive visualization approach using spirals-based technique. A spiral has the geometric shape that could help to reveal periodical patterns and the timeline is the best source for it. When the user wants to observe patterns with respect to different spatial viewpoints on the map and periodical constraints, the spatiotemporal line can be decomposed according to specified locations to browse patterns.",
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"title": "A visual language for interactive data exploration and analysis",
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"abstract": "The analysis of large amounts of data to extract generalizations, exceptions, trends, and hidden relationships is a common activity in the business and scientific communities. While some kinds of \"knowledge\" can be extracted automatically with preselected algorithms or data mining techniques, others require an experienced human, often an expert in analysis, the business or scientific context, or both. We have found that such humans combine exploration, the search for a relevant subset or view of the data, with analysis, statistical or other techniques for measurement. We designed and implemented a visual language, IDEA, to assist the data analyst in these two intertwined tasks. The language is a convenient representation for data analysis and provides environmental support for keeping track of sequences of operations, reuse of the data analysis itself, and enforced semantics between operations and data.",
"abstracts": [
{
"abstractType": "Regular",
"content": "The analysis of large amounts of data to extract generalizations, exceptions, trends, and hidden relationships is a common activity in the business and scientific communities. While some kinds of \"knowledge\" can be extracted automatically with preselected algorithms or data mining techniques, others require an experienced human, often an expert in analysis, the business or scientific context, or both. We have found that such humans combine exploration, the search for a relevant subset or view of the data, with analysis, statistical or other techniques for measurement. We designed and implemented a visual language, IDEA, to assist the data analyst in these two intertwined tasks. The language is a convenient representation for data analysis and provides environmental support for keeping track of sequences of operations, reuse of the data analysis itself, and enforced semantics between operations and data.",
"__typename": "ArticleAbstractType"
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"normalizedAbstract": "The analysis of large amounts of data to extract generalizations, exceptions, trends, and hidden relationships is a common activity in the business and scientific communities. While some kinds of \"knowledge\" can be extracted automatically with preselected algorithms or data mining techniques, others require an experienced human, often an expert in analysis, the business or scientific context, or both. We have found that such humans combine exploration, the search for a relevant subset or view of the data, with analysis, statistical or other techniques for measurement. We designed and implemented a visual language, IDEA, to assist the data analyst in these two intertwined tasks. The language is a convenient representation for data analysis and provides environmental support for keeping track of sequences of operations, reuse of the data analysis itself, and enforced semantics between operations and data.",
"fno": "75080084",
"keywords": [
"Visual Languages Visual Language Interactive Data Exploration IDEA Data Analysis Enforced Semantics"
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{
"affiliation": "AT&T Res., USA",
"fullName": "P. Selfridge",
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{
"affiliation": "AT&T Res., USA",
"fullName": "D. Srivastava",
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