| 1. |
- Picazo-Sanchez, Pablo, 1985, et al.
(författare)
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Are chrome extensions compliant with the spirit of least privilege?
- 2022
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Ingår i: International Journal of Information Security. - : Springer Science and Business Media LLC. - 1615-5262 .- 1615-5270. ; 21:6, s. 1283-1297
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Tidskriftsartikel (refereegranskat)abstract
- Extensions are small applications installed by users and enrich the user experience of browsing the Internet. Browsers expose a set of restricted APIs to extensions. To be used, extensions need to list the permissions associated with these APIs in a mandatory extension file named manifest. In particular, Chrome’s permission ecosystem was designed in the spirit of the least privilege. Yet, this paper demonstrates that 39.8% of the analyzed extensions provided by the official Web Store are compliant with the spirit of least privilege. Also, we develop: (1) a browser extension to make aware regular users of the permissions the extensions they install; (2) a web app where extensions developers can check whether their extensions are compliant with the spirit of the least privileged; and (3) a set of scripts that can be part of the vendors’ acceptance criteria such that when developers upload their extensions to the official repositories, the scripts automatically analyze the extensions and generate a report about the permissions and the usage.
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| 2. |
- Frid, Emma, 1988-, et al.
(författare)
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Perceptual Evaluation of Blended Sonification of Mechanical Robot Sounds Produced by Emotionally Expressive Gestures : Augmenting Consequential Sounds to Improve Non-verbal Robot Communication
- 2021
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Ingår i: International Journal of Social Robotics. - : Springer Nature. - 1875-4791 .- 1875-4805.
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Tidskriftsartikel (refereegranskat)abstract
- This paper presents two experiments focusing on perception of mechanical sounds produced by expressive robot movement and blended sonifications thereof. In the first experiment, 31 participants evaluated emotions conveyed by robot sounds through free-form text descriptions. The sounds were inherently produced by the movements of a NAO robot and were not specifically designed for communicative purposes. Results suggested no strong coupling between the emotional expression of gestures and how sounds inherent to these movements were perceived by listeners; joyful gestures did not necessarily result in joyful sounds. A word that reoccurred in text descriptions of all sounds, regardless of the nature of the expressive gesture, was “stress”. In the second experiment, blended sonification was used to enhance and further clarify the emotional expression of the robot sounds evaluated in the first experiment. Analysis of quantitative ratings of 30 participants revealed that the blended sonification successfully contributed to enhancement of the emotional message for sound models designed to convey frustration and joy. Our findings suggest that blended sonification guided by perceptual research on emotion in speech and music can successfully improve communication of emotions through robot sounds in auditory-only conditions.
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| 3. |
- Latupeirissa, Adrian Benigno, et al.
(författare)
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Exploring emotion perception in sonic HRI
- 2020
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Ingår i: 17th Sound and Music Computing Conference. - Torino : Zenodo. ; , s. 434-441
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Konferensbidrag (refereegranskat)abstract
- Despite the fact that sounds produced by robots can affect the interaction with humans, sound design is often an overlooked aspect in Human-Robot Interaction (HRI). This paper explores how different sets of sounds designed for expressive robot gestures of a humanoid Pepper robot can influence the perception of emotional intentions. In the pilot study presented in this paper, it has been asked to rate different stimuli in terms of perceived affective states. The stimuli were audio, audio-video and video only and contained either Pepper’s original servomotors noises, sawtooth, or more complex designed sounds. The preliminary results show a preference for the use of more complex sounds, thus confirming the necessity of further exploration in sonic HRI.
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| 4. |
- Barreiro, Anabela, et al.
(författare)
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Multi3Generation : Multitask, Multilingual, Multimodal Language Generation
- 2022
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Ingår i: Proceedings of the 23rd Annual Conference of the European Association for Machine Translation. - : European Association for Machine Translation. ; , s. 345-346
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Konferensbidrag (refereegranskat)abstract
- This paper presents the Multitask, Multilingual, Multimodal Language Generation COST Action – Multi3Generatio(CA18231), an interdisciplinary networof research groups working on different aspects of language generation. This "meta-paper" will serve as reference for citationof the Action in future publications. It presents the objectives, challenges and a the links for the achieved outcomes.
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| 5. |
- Lv, Zhihan, Dr. 1984-, et al.
(författare)
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Deep Learning for Security in Digital Twins of Cooperative Intelligent Transportation Systems
- 2022
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Ingår i: IEEE transactions on intelligent transportation systems (Print). - : Institute of Electrical and Electronics Engineers (IEEE). - 1524-9050 .- 1558-0016. ; 23:9, s. 16666-16675
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Tidskriftsartikel (refereegranskat)abstract
- The purpose is to solve the security problems of the Cooperative Intelligent Transportation System (CITS) Digital Twins (DTs) in the Deep Learning (DL) environment. The DL algorithm is improved; the Convolutional Neural Network (CNN) is combined with Support Vector Regression (SVR); the DTs technology is introduced. Eventually, a CITS DTs model is constructed based on CNN-SVR, whose security performance and effect are analyzed through simulation experiments. Compared with other algorithms, the security prediction accuracy of the proposed algorithm reaches 90.43%. Besides, the proposed algorithm outperforms other algorithms regarding Precision, Recall, and F1. The data transmission performances of the proposed algorithm and other algorithms are compared. The proposed algorithm can ensure that emergency messages can be responded to in time, with a delay of less than 1.8s. Meanwhile, it can better adapt to the road environment, maintain high data transmission speed, and provide reasonable path planning for vehicles so that vehicles can reach their destinations faster. The impacts of different factors on the transportation network are analyzed further. Results suggest that under path guidance, as the Market Penetration Rate (MPR), Following Rate (FR), and Congestion Level (CL) increase, the guidance strategy's effects become more apparent. When MPR ranges between 40% similar to 80% and the congestion is level III, the ATT decreases the fastest, and the improvement effect of the guidance strategy is more apparent. The proposed DL algorithm model can lower the data transmission delay of the system, increase the prediction accuracy, and reasonably changes the paths to suppress the sprawl of traffic congestions, providing an experimental reference for developing and improving urban transportation.
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| 6. |
- Sjösten, Alexander, 1988, et al.
(författare)
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Filter List Generation for Underserved Regions
- 2020
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Ingår i: The Web Conference 2020 - Proceedings of the World Wide Web Conference, WWW 2020. - New York, NY, USA : ACM. ; , s. 1682-1692
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Konferensbidrag (refereegranskat)abstract
- Filter lists play a large and growing role in protecting and assisting web users. The vast majority of popular filter lists are crowd-sourced, where a large number of people manually label resources related to undesirable web resources (e.g. ads, trackers, paywall libraries), so that they can be blocked by browsers and extensions. Because only a small percentage of web users participate in the generation of filter lists, a crowd-sourcing strategy works well for blocking either uncommon resources that appear on "popular" websites, or resources that appear on a large number of "unpopular" websites. A crowd-sourcing strategy will perform poorly for parts of the web with small "crowds", such as regions of the web serving languages with (relatively) few speakers. This work addresses this problem through the combination of two novel techniques: (i) deep browser instrumentation that allows for the accurate generation of request chains, in a way that is robust in situations that confuse existing measurement techniques, and (ii) an ad classifier that uniquely combines perceptual and page-context features to remain accurate across multiple languages. We apply our unique two-step filter list generation pipeline to three regions of the web that currently have poorly maintained filter lists: Sri Lanka, Hungary, and Albania. We generate new filter lists that complement existing filter lists. Our complementary lists block an additional 3,349 of ad and ad-related resources (1,771 unique) when applied to 6,475 pages targeting these three regions. We hope that this work can be part of an increased effort at ensuring that the security, privacy, and performance benefits of web resource blocking can be shared with all users, and not only those in dominant linguistic or economic regions.
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| 7. |
- Saqr, Mohammed, et al.
(författare)
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People, Ideas, Milestones : A Scientometric Study of Computational Thinking
- 2021
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Ingår i: ACM Transactions on Computing Education. - : Association for Computing Machinery (ACM). - 1946-6226. ; 21:3
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Tidskriftsartikel (refereegranskat)abstract
- The momentum around computational thinking (CT) has kindled a rising wave of research initiatives andscholarly contributions seeking to capitalize on the opportunities that CT could bring. A number of literaturereviews have showed a vibrant community of practitioners and a growing number of publications. However,the history and evolution of the emerging research topic, the milestone publications that have shaped itsdirections, and the timeline of the important developments may be better told through a quantitative, scientometric narrative. This article presents a bibliometric analysis of the drivers of the CT topic, as well as itsmain themes of research, international collaborations, influential authors, and seminal publications, and howauthors and publications have influenced one another. The metadata of 1,874 documents were retrieved fromthe Scopus database using the keyword “computational thinking.” The results show that CT research has been US-centric from the start, and continues to be dominated by US researchers both in volume and impact. International collaboration is relatively low, but clusters of joint research are found between, for example, anumber of Nordic countries, lusophone- and hispanophone countries, and central European countries. The results show that CT features the computing’s traditional tripartite disciplinary structure (design, modeling, and theory), a distinct emphasis on programming, and a strong pedagogical and educational backdrop including constructionism, self-efficacy, motivation, and teacher training.
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| 8. |
- Bresin, Roberto, 1963-, et al.
(författare)
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Looking for the soundscape of the future : preliminary results applying the design fiction method
- 2020
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Ingår i: Sound and Music Computing Conference 2020.
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Konferensbidrag (refereegranskat)abstract
- The work presented in this paper is a preliminary study in a larger project that aims to design the sound of the future through our understanding of the soundscapes of the present, and through methods of documentary filmmaking, sound computing and HCI. This work is part of a project that will complement and run parallel to Erik Gandini’s research project ”The Future through the Present”, which explores how a documentary narrative can create a projection into the future, and develop a cinematic documentary aesthetics that releases documentary film from the constraints of dealing with the present or the past. The point of departure is our relationship to labour at a time when Robotics, VR/AR and AI applied to Big Data outweigh and augment our physical and cognitive capabilities, with automation expected to replace humans on a large scale within most professional fields. From an existential perspective this poses the question: what will we do when we don’t have to work? And challenges us to formulate a new idea of work beyond its historical role. If the concept of work ethics changes, how would that redefine soundscapes? Will new sounds develop? Will sounds from the past resurface? In the context of this paper we try to tackle these questions by first applying the Design Fiction method. In a workshop with twenty-three participants predicted both positive and negative future scenarios, including both lo-fi and hi-fi soundscapes, and in which people will be able to control and personalize soundscapes. Results are presented, summarized and discussed.
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| 9. |
- Kantan, Prithvi Ravi, et al.
(författare)
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Sonifying Walking : A Perceptual Comparison of Swing Phase Mapping Schemes
- 2022
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Ingår i: Proceedings of ISon 2022, 7th Interactive Sonification Workshop, BSCC, University of Bremen, Germany, September 22–23, 2022.
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Konferensbidrag (refereegranskat)abstract
- ast research on the interactive sonification of footsteps has shown that the signal properties of digitally generated or processed footstep sounds can affect the perceived congruence between sensory channel inputs, leading to measurable changes in gait characteristics. In this study, we designed musical and nonmusical swing phase sonification schemes with signal characteristics corresponding to high and low ‘energy’ timbres (in terms of the levels of physical exertion and arousal they expressed), and assessed their perceived arousal, valence, intrusiveness, and congruence with fast (5 km/h) and slow (1.5 km/h) walking . In a web-based perceptual test with 52 participants, we found that the nonmusical high energy scheme received higher arousal ratings, and the musical equivalent received more positive valence ratings than the respective lowenergy counterparts. All schemes received more positive arousal and valence ratings when applied to fast walking than slow walking data. Differences in perceived movement-sound congruence among the schemes were more evident for slow walking than fast walking. Lastly, the musical schemes were rated to be less intrusive to listen to for both slow and fast walking than their nonmusicalcounterparts. With some modifications, the designed schemes will be used during walking to assess their effects on gait qualities.
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| 10. |
- Larson Holmgren, David, et al.
(författare)
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Facilitating reflection on climate change using interactive sonification
- 2022
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Ingår i: Proceedings of ISon 2022, 7th Interactive Sonification Workshop, BSCC, University of Bremen, Germany, September 22–23, 2022.
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Konferensbidrag (refereegranskat)abstract
- This study explores the possibility of using musical soundscapes to facilitate reflection on the impacts of climate change. By sonifying historic and future climate data, an interactive timeline was created where the user can explore a soundscape changing in time. A prototype was developed and tested in a user study with 15 participants. Results indicate that the prototype successfully elicits the emotions that it was designed to communicate and that it does influence the participants’ reflections. However, it remains uncertain how much the prototype actually helped them while reflecting.
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