Building and Querying an Enterprise Knowledge Graph Song, Dezhao; Schilder, Frank; Hertz, Shai ...
IEEE transactions on services computing,
2019-May-June-1, 2019-5-1, Letnik:
12, Številka:
3
Journal Article
Recenzirano
Information providers are faced with a critical challenge to process, retrieve and present information to their users in order to satisfy their complex information needs, because data has been ...increasing in an unprecedented manner, coming from diverse sources, and covering a variety of domains in heterogeneous formats. In this paper, we present Thomson Reuters’ effort in developing a family of services for building and querying an enterprise knowledge graph in order to address this challenge. We first acquire data from various sources via different approaches. Furthermore, we mine useful information from the data by adopting a variety of techniques, including Named Entity Recognition and Relation Extraction; such mined information is further integrated with existing structured data (e.g., via Entity Linking techniques) in order to obtain relatively comprehensive descriptions of the entities. By modeling the data as an RDF graph model, we enable easy data management and the embedding of rich semantics in our data. Finally, in order to facilitate the querying of this mined and integrated data, i.e., the knowledge graph, we propose TR Discover, a natural language interface that allows users to ask questions of our knowledge graph in their own words; such natural language questions are then translated into executable queries for answer retrieval. We evaluate our services, i.e., named entity recognition, relation extraction, entity linking and natural language interface, on real-world datasets, and demonstrate and discuss their practicability and limitations.
Empowering people through technology is a core concern of HCI, yet little is known about how players experience empowerment or disempowerment through videogames. We surveyed 250 participants about ...their dis-/empowering videogame experiences, investigating why they felt dis-/empowered, and how these experiences related to core player experience constructs including emotion and basic needs satisfaction. While empowering experiences were often positive, and disempowering experiences often negative, we found meaningful exceptions to this, and a surprising complexity in player accounts. We capture this diversity in seven themes. These range from ”heroic victories” which follow long periods of failure, to positive experiences of disempowerment, which were appreciated for their narrative meaning. By articulating these complex experiences, and relating them to quantitative measures we provide a foundation for understanding of the role of dis-/empowerment in player experience, and highlight avenues for future work. Data and analyses are available at https://osf.io/zhtu8/
Increased use of course management software to administer course exams online for face-to-face classes raises the question of how well test anxiety and other emotions generalize from the classroom to ...an online setting. We hypothesized that administering regular course exams in an online format would reduce test anxiety experienced at the time of the exam and improve exam scores. We recruited 69 participants from a psychology course to take classroom- and online-delivered exams, using a counterbalanced crossover design. We found that students who normally experience high levels of test anxiety in the classroom had reduced test anxiety when taking online exams, while the reverse was true for those low in classroom anxiety. Furthermore, the relationship between test anxiety and exam performance was weaker in an online setting than in the classroom. We recommend that instructors evaluate the potential impact of these findings when considering offering examinations online.
The differential diagnosis for eosinophil‐rich skin lesions often includes a drug reaction, allergic contact dermatitis and rarely, response to a helminth infection. However, many unrelated entities, ...such as infections, neoplasms and inflammatory dermatoses, can have a prominent eosinophilic infiltrate. Syphilis is classically associated with plasma cells, but other patterns of inflammation have been reported, including ulcerative, granulomatous and eosinophil‐rich. Classic teaching might indicate that the presence of eosinophils argues against a diagnosis of syphilis. We present four cases of secondary syphilis with increased eosinophils, ranging from 8 to >200 eosinophils per 10 high‐power fields (×400 magnification). Patient 1 had lesions on the penis and scrotum, with greater than 200 eosinophils per 10 high‐power fields. Patient 2 had lesions on the back, with 150 eosinophils per 10 high‐power fields. Patient 3 had lesions on the bilateral arms, with 8 eosinophils per 10 high‐power fields. Patient 4 had lesions involving the anus, with 17 eosinophils per 10 high‐power fields. These cases highlight that the presence of an eosinophil‐rich infiltrate on skin biopsy should not exclude syphilis from the differential diagnosis.
This study addressed how trait levels of classroom shyness can influence conformity when students answer opinion questions in different ways. We recruited 128 introductory psychology students to ...indicate their opinion on 50 controversial questions by raising their hand or anonymously pressing a button on a keypad (“clicker”). Compared to hand-raising, keypad responses had greater variability, suggesting that students were less likely to conform to the group's opinion. Students who typically experience shame and anxiety in class did not conform any more than other students did, but they felt more uncomfortable raising their hands and indicated a stronger preference for using keypads when answering controversial questions.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, OILJ, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
Unity is a powerful cross-platform game creation system that includes a game engine and integrated development environment (IDE). AI programming in Unity is a key task for any game developer as it ...gives you the ability to make computer characters think and behave like a living organism. This book focuses on the different AI tasks that are essential for game development using Unity. It includes topics such as defining "minds" for your characters with behavior trees. Furthermore, it covers more specialized AI tasks such as how to implement AI crowds and how to create driving AI for vehicles. We have a section dedicated to NavMesh, one of the most important aspects of pathfinding, that will show you how to customize the mesh generation to handle different use cases for different characters. This is a practical book as it uses several popular Unity plugins such as RAIN and React AI to accomplish different AI tasks.
Jank Accounts: We Should Study `Broken' Games Bennett, Dan; Mekler, Elisa D.
Companion Proceedings of the Annual Symposium on Computer-Human Interaction in Play,
10/2023
Conference Proceeding
We argue that HCI games research can benefit by understanding experiences of "jank". Jank is a gaming vernacular term for game-elements that are somehow “off”: sloppy, glitchy, or clumsy. Examples ...include frustrating control schemes, primitive visuals, absurd physics errors, and NPCs with wooden, alienating behaviour. Importantly, ‘jank’ is no straightforward term of abuse: players use the term appreciatively, even with affection. Attention to the “paradox” of jank-appreciation can help us understand the limits of usability in understanding player experience. It can clarify conditions which foster reflection and appreciation of adversity, and shed light on games as aesthetic experiences.
Since March 10, 2020, we have been tracking effects of the COVID-19 pandemic on respondents to the nationally representative Understanding America Study (UAS). After an initial survey that covered ...March 10–31, 2020, we launched tracking surveys every two weeks. Every day, about 500 respondents are invited to take the survey for a total of about 7,000 respondents over a two-week period. Results are shared in a variety of ways. About 3,000 graphs are updated every night, with the corresponding tab-delimited text files available for download. The underlying micro-data are available for registered researchers after the end of each four-week field period. The paper describes the set-up of the tracking survey, lists the main topics covered and highlights a number or early results. Our ambition is to keep tracking the experiences of U.S. households for as along as the pandemic lasts.
How does HCI Understand Human Agency and Autonomy? Bennett, Dan; Metatla, Oussama; Roudaut, Anne ...
Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems,
04/2023
Conference Proceeding
Odprti dostop
Human agency and autonomy have always been fundamental concepts in HCI. New developments, including ubiquitous AI and the growing integration of technologies into our lives, make these issues ever ...pressing, as technologies increase their ability to influence our behaviours and values. However, in HCI understandings of autonomy and agency remain ambiguous. Both concepts are used to describe a wide range of phenomena pertaining to sense-of-control, material independence, and identity. It is unclear to what degree these understandings are compatible, and how they support the development of research programs and practical interventions. We address this by reviewing 30 years of HCI research on autonomy and agency to identify current understandings, open issues, and future directions. From this analysis, we identify ethical issues, and outline key themes to guide future work. We also articulate avenues for advancing clarity and specificity around these concepts, and for coordinating integrative work across different HCI communities.
