Science Talks最新文献_第9页

A rank estimation method for third-order tensor completion in the tensor-train format 以张量-列车格式完成三阶张量的秩估计方法

Science Talks Pub Date : 2024-04-03 DOI: 10.1016/j.sctalk.2024.100342

Charlotte Vermeylen , Guillaume Olikier , Pierre-Antoine Absil , Marc Van Barel

引用次数: 0

Improving immersive consumption contexts using virtual & mixed reality 利用虚拟和混合现实技术改善沉浸式消费环境

Science Talks Pub Date : 2024-04-02 DOI: 10.1016/j.sctalk.2024.100346

Imogen Barker , Qian Yang , Martin Flintham , Rachel Ankeny , Rebecca Ford

{"title":"Improving immersive consumption contexts using virtual & mixed reality","authors":"Imogen Barker , Qian Yang , Martin Flintham , Rachel Ankeny , Rebecca Ford","doi":"10.1016/j.sctalk.2024.100346","DOIUrl":"https://doi.org/10.1016/j.sctalk.2024.100346","url":null,"abstract":"<div><p>Immersive technologies, such as Virtual Reality (VR), provide a great opportunity to create relevant contexts in consumer studies. However, challenges persist in consuming food and drink during immersion and ensuring effective data collection. This study addressed these challenges using an innovative approach incorporating Mixed Reality (MR), embedding virtual questionnaires responsive to hand gestures and using custom-made wine glasses. Two virtual contexts were created – a sensory booth and a wine bar with integrated audio and avatars. The purpose of this study was to investigate the effect of context elements on participant experiences. Thirteen participants consumed two different rosé wines (40mls each) in the two different virtual contexts, Participant insights regarding their immersive experience were collected using a structured questionnaire. Results showed participants effectively used hand gestures to respond to various questionnaires, whilst zones of real-world visibility enabled wine glass interactions. Audio and avatars played pivotal roles in creating a realistic and immersive virtual bar environment. Using MR, custom glassware, hand gesture recognition, embedded questionnaires and wireless headsets proved to be an effective approach for collecting data from multiple fully immersed participants, simultaneously. This innovative approach demonstrated sensory evaluations can be undertaken entirely within virtual environments, eliminating the need to break immersion. This advancement could yield more valuable consumer insights, enhancing understanding of consumer preferences and experiences.</p></div>","PeriodicalId":101148,"journal":{"name":"Science Talks","volume":"10 ","pages":"Article 100346"},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772569324000549/pdfft?md5=f05491af66077e8fc9277cb5d4df5f32&pid=1-s2.0-S2772569324000549-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140644563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Key learnings of playing with your food! Using ‘Sensory Play’ to understand barriers of eating unfamiliar foods 与食物玩耍的主要经验！利用 "感官游戏 "了解进食陌生食物的障碍

Science Talks Pub Date : 2024-04-02 DOI: 10.1016/j.sctalk.2024.100344

Julia Low , Brooke Crawford, Jessica Danaher, Isabella Hartley, Su Szen Yeah, Lisa Newman

{"title":"Key learnings of playing with your food! Using ‘Sensory Play’ to understand barriers of eating unfamiliar foods","authors":"Julia Low , Brooke Crawford, Jessica Danaher, Isabella Hartley, Su Szen Yeah, Lisa Newman","doi":"10.1016/j.sctalk.2024.100344","DOIUrl":"https://doi.org/10.1016/j.sctalk.2024.100344","url":null,"abstract":"<div><p>This pilot study and its subsequent larger intervention aimed to explore if ‘Sensory Play,’ a sensory-based educational approach, could enhance nursery school children's (aged 3–5) acceptance of new and sustainable foods over four weeks. Conducted in a Victorian (Australia) nursery, the pilot involved a between-subjects design with 30 children (3–4 years old) divided into three groups, each focusing on a different unfamiliar, sustainable food: tofu, lentils, or parsnip. The larger study also examined the impact of parental education on children's openness to trying these foods. Participants engaged in multisensory ‘Sensory Play’ activities targeting these foods during the intervention. Preliminary results indicated a notable increase in parsnip consumption among its group, with no significant changes in the tofu and lentil groups. This suggests that while sensory-based activities may boost willingness to try certain new vegetables, like parsnips, others like tofu and lentils might need more varied exposure and activities emphasizing sensory differences between raw and cooked states (See Supplementary Table). These insights guided the sensory activities selection for a more extensive ‘Sensory Play’ trial in Victoria, highlighting the potential of sensory education in promoting sustainable food choices among young children.</p></div>","PeriodicalId":101148,"journal":{"name":"Science Talks","volume":"10 ","pages":"Article 100344"},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772569324000525/pdfft?md5=369f2e45ab08af009073157158e8a4c0&pid=1-s2.0-S2772569324000525-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140542729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Driving fragrance development to deliver emotional benefits in several markets 推动香水开发，在多个市场带来情感上的益处

Science Talks Pub Date : 2024-04-02 DOI: 10.1016/j.sctalk.2024.100345

Christelle Porcherot, Fabien Craignou, Karine Miot, Donato Cereghetti

{"title":"Driving fragrance development to deliver emotional benefits in several markets","authors":"Christelle Porcherot, Fabien Craignou, Karine Miot, Donato Cereghetti","doi":"10.1016/j.sctalk.2024.100345","DOIUrl":"https://doi.org/10.1016/j.sctalk.2024.100345","url":null,"abstract":"<div><p>Brands' growing interest in wellness makes perfumery an optimal means of delivering emotional benefits to consumers, which requires skilled olfactory execution tailored to different markets. To this end, we established a combined Sensory and Consumer approach to provide olfactive guidelines: 44 perfumery accords illustrating different olfactive facets have been evaluated by 150 consumers in 11 countries, and their emotional responses, or feelings, measured using an implicit reaction time technique. These accords have also been evaluated by a trained sensory panel using a CATA descriptive procedure with 40 olfactive attributes.</p><p>The combined datasets have been processed through multi-dimensional methods (MFA and olfactive drivers) to identify sensory drivers of feelings, highlighting global trends and country-specific patterns. For example, the vanilla olfactive character was positively linked to relaxed feelings, while the mint olfactive character was negatively linked to relaxed feelings for most of the countries. However, in India, Germany, Japan and Thailand, the vanilla olfactive character was also negatively linked to relaxed feelings. Proximity between countries in terms of fragrance-feelings space has been examined, opening opportunities for brands to rationalize fragrance portfolio, especially for refresh feelings. Finally, predictive models have been produced to anticipate the emotional profile of new fragrances based on their olfactive profile, and simplify the decision-making process during development.</p></div>","PeriodicalId":101148,"journal":{"name":"Science Talks","volume":"10 ","pages":"Article 100345"},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772569324000537/pdfft?md5=b223c9481f553687924e78fdc3a079f5&pid=1-s2.0-S2772569324000537-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140645749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

QoE Assessment for cultural heritage fruition through immersive media 通过身临其境的媒体实现文化遗产的 QoE 评估

Science Talks Pub Date : 2024-03-31 DOI: 10.1016/j.sctalk.2024.100343

Anna Ferrarotti

{"title":"QoE Assessment for cultural heritage fruition through immersive media","authors":"Anna Ferrarotti","doi":"10.1016/j.sctalk.2024.100343","DOIUrl":"10.1016/j.sctalk.2024.100343","url":null,"abstract":"<div><p>Extended Reality technologies offer new and exciting perspectives in a wide variety of applications, ranging from entertainment to working and educational environments. However, given their recent development, great effort is still required for developing methods to evaluate their performances and in particular for Quality of Experience assessment. The aim of my Ph.D. is to model how the experience is perceived by users for cultural heritage applications. The use of immersive technologies in this context could help young students approaching the study of art and increase the people's interest in visiting museums and archeological sites. More specifically, the goal of my research is to define an objective metric for Quality of Experience assessment. This task can be very challenging, since each of us perceives and processes an external stimulus in a different and unique way. Therefore, our research group is trying to model users' opinions, engagement, and feelings, by performing subjective experiments in a virtual reality environment. These experiments focus on relating the perceived quality of experience to users' movement in the virtual 3D space. In addition, we also map users' eye movements to investigate where their attention is focused.</p></div>","PeriodicalId":101148,"journal":{"name":"Science Talks","volume":"10 ","pages":"Article 100343"},"PeriodicalIF":0.0,"publicationDate":"2024-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772569324000513/pdfft?md5=dabe09d8eba65015e06879fc9c3638a3&pid=1-s2.0-S2772569324000513-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140403006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Maximum likelihood sequence estimation in high-speed PONs using machine learning-based pre-equalizers 利用基于机器学习的预均衡器在高速 PON 中进行最大似然序列估计

Science Talks Pub Date : 2024-03-30 DOI: 10.1016/j.sctalk.2024.100341

Wouter Lanneer, Yannick Lefevre

引用次数: 0

Learning optimal spatial subsampling for single-channel ultrasound imaging 学习单通道超声成像的最佳空间子采样

Science Talks Pub Date : 2024-03-30 DOI: 10.1016/j.sctalk.2024.100340

Han Wang , Eduardo Pérez , Florian Römer

{"title":"Learning optimal spatial subsampling for single-channel ultrasound imaging","authors":"Han Wang , Eduardo Pérez , Florian Römer","doi":"10.1016/j.sctalk.2024.100340","DOIUrl":"10.1016/j.sctalk.2024.100340","url":null,"abstract":"<div><p>Traditional ultrasound synthetic aperture imaging relies on closely spaced measurement positions, where the pitch size is smaller than half the ultrasound wavelength. While this approach achieves high-quality images, it necessitates the storage of large data sets and an extended measurement time. To address these issues, there is a burgeoning interest in exploring effective subsampling techniques. Recently, Deep Probabilistic Subsampling (DPS) has emerged as a feasible approach for designing selection matrices for multi-channel systems. In this paper, we address spatial subsampling in single-channel ultrasound imaging for Nondestructive Testing (NDT) applications. To accomplish a model-based data-driven spatial subsampling approach within the DPS framework that allows for the optimal selection of sensing positions on a discretized grid, it is crucial to build an adequate signal model and design an adapted network architecture with a reasonable cost function. The reconstructed image quality is then evaluated through simulations, showing that the presented subsampling pattern approaches the performance of fully sampling and substantially outperforms uniformly spatial subsampling in terms of signal recovery quality.</p></div>","PeriodicalId":101148,"journal":{"name":"Science Talks","volume":"10 ","pages":"Article 100340"},"PeriodicalIF":0.0,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772569324000483/pdfft?md5=28f13d31aad07d730a26231a24a5994b&pid=1-s2.0-S2772569324000483-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140406533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Connecting the dots: A candy comparison of the free-linking task to the projective mapping task (Video abstract) 连点成线：自由连接任务与投射映射任务的糖果比较（视频摘要）

Science Talks Pub Date : 2024-03-30 DOI: 10.1016/j.sctalk.2024.100339

David Orden , Encarnación Fernández-Fernández , Jacob Lahne

{"title":"Connecting the dots: A candy comparison of the free-linking task to the projective mapping task (Video abstract)","authors":"David Orden , Encarnación Fernández-Fernández , Jacob Lahne","doi":"10.1016/j.sctalk.2024.100339","DOIUrl":"https://doi.org/10.1016/j.sctalk.2024.100339","url":null,"abstract":"<div><p>The free-linking task has been recently proposed as a new method for rapid similarity testing, in which participants are asked to connect those pairs of samples which they consider similar. Previous results showed that both methods provided highly comparable consensus graphics in the first two dimensions, but free-linking provided more discrimination in dimensions three and four. In this work we compared, for the first time, the free-linking task to the well-known projective mapping task.</p><p>Popular candies (K = 9), see Fig. 1, were analyzed via their images, using Projective Mapping by <em>N</em>=298 subjects aged between 4 and 66, and using Linking by <em>N</em>=189 subjects aged between 6 and 56. Data from Projective Mapping were analyzed using Multiple Factor Analysis (Fig. 2) and SensoGraph (Fig. 3). Data from Linking were analyzed using DISTATIS (Fig. 4) and SensoGraph (Fig. 5). Stability was checked using Jaccard stability and bootstrapping with adjusted RV.</p><p>The results show that the higher discrimination capacity of Linking over Projective Mapping is apparent already at the first two dimensions, without the need of checking further dimensions. Thus, the free-linking task may be considered as an alternative not only to the free-sorting task, but also to the projective mapping task.</p></div>","PeriodicalId":101148,"journal":{"name":"Science Talks","volume":"10 ","pages":"Article 100339"},"PeriodicalIF":0.0,"publicationDate":"2024-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772569324000471/pdfft?md5=e6e02972b433fab3c2b6e7af4a933828&pid=1-s2.0-S2772569324000471-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140542772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A simple process to analyze free sorting data given incomplete block designs 给定不完整区块设计的分析自由排序数据的简单过程

Science Talks Pub Date : 2024-03-28 DOI: 10.1016/j.sctalk.2024.100336

Fabien Llobell , Véronique Cariou

{"title":"A simple process to analyze free sorting data given incomplete block designs","authors":"Fabien Llobell , Véronique Cariou","doi":"10.1016/j.sctalk.2024.100336","DOIUrl":"https://doi.org/10.1016/j.sctalk.2024.100336","url":null,"abstract":"<div><p>The free sorting task, which involves asking each subject to group together stimuli based on their perceived similarities, is widely used in the sensory world. However, industries need to evaluate more and more products and this task shows its limits when the number of products increases, since it can cause fatigue to the subjects. To address such a limitation, one recommendation is to resort to an incomplete free sorting task. However, the majority of methods for analyzing free sorting tasks that require complete data can no longer be used.</p><p>Among the existing methods to analyze free sorting data, Cariou & Qannari (2018) proposed setting up a product x product contingency table and then performing a Correspondence Analysis on this table to determine a product map. We propose to extend this approach to the case of an incomplete free sorting plan by simply reporting in the contingency table zero occurrences for the products that have not been with the others. This straightforward strategy is suitable for incomplete block design by following three instructions.</p><p>This adaptation is illustrated on a case study of wine aromas where subjects performed complete and incomplete free sorting tasks. Finally, a comparison of the results is made.</p></div>","PeriodicalId":101148,"journal":{"name":"Science Talks","volume":"10 ","pages":"Article 100336"},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772569324000446/pdfft?md5=fa8a7c3ede596aef0d28fe4303f6a69d&pid=1-s2.0-S2772569324000446-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140349761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Are citizens motivated to take part in participatory research in order to create sensory and consumer databases? 为了创建感官和消费者数据库，公民是否有动力参与参与式研究？

Science Talks Pub Date : 2024-03-28 DOI: 10.1016/j.sctalk.2024.100338

Lucia Espinosa-Brisset, Anne Saint-Eve

{"title":"Are citizens motivated to take part in participatory research in order to create sensory and consumer databases?","authors":"Lucia Espinosa-Brisset, Anne Saint-Eve","doi":"10.1016/j.sctalk.2024.100338","DOIUrl":"https://doi.org/10.1016/j.sctalk.2024.100338","url":null,"abstract":"<div><p>Participatory research engages voluntary citizens in scientific inquiry to produce new knowledge. There is a large development of participatory research in diverse domains, but only a few are developed in the food domain.</p><p>A challenge appeared since consumers are more involved in the food transition. As citizens' engagement is key for participatory research, the objective of our work was to understand citizens' familiarization and motivations to be involved in participatory research to build sensory and consumer databases.</p><p>A participatory workshop (n = 13) and an online survey (n = 500) were performed to establish an initial diagnosis of motivations and barriers contributing to participatory research about food and sensory perception.</p><p>Results revealed that citizens are unfamiliar with participatory research, 72% of participants had never heard of it, 82.8% are interested in participating, 43.4% would only do so if they were paid. The main reasons for participating in participatory research in the food sector are to: increase their knowledge (31%), curiosity (30%), have access to information on consumed products (29%), help research (24%) and acquire knowledge in nutrition (22%).</p><p>Participatory research can be a valuable way to create sensory and consumer databases if it's possible to capture citizens' motivation and attention (e.g. interactive, playful questionnaires).</p></div>","PeriodicalId":101148,"journal":{"name":"Science Talks","volume":"10 ","pages":"Article 100338"},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277256932400046X/pdfft?md5=df36670047b00228adfe1900859d3bc8&pid=1-s2.0-S277256932400046X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140349762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0