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Integrating perceptual and cognitive modeling for adaptive and intelligent human-computer interaction

PROCEEDINGS OF THE IEEE 2002年第7期90卷 1272-1289页

作者： Duric, Z Gray, WD Heishman, R Li, FY Rosenfeld, A Schoelles, MJ Schunn, C Wechsler, H George Mason Univ Dept Comp Sci Fairfax VA 22030 USA Rensselaer Polytech Inst Dept Cognit Sci Troy NY 12180 USA Univ Maryland Ctr Automat Res College Pk MD 20742 USA George Mason Univ Dept Psychol ARCH Lab HFAC Program Fairfax VA 22030 USA Univ Pittsburgh LRDC Learning Res & Dev Ctr Dept Psychol Pittsburgh PA 15260 USA

This paper describes technology and tools for intelligent human-computer interaction (IHCI) where human cognitive, perceptual, motor and affective factors are modeled and used to adapt the H-C interface. IHCI emphasizes that human behavior encompasses both apparent human behavior and the hidden mental state behind behavioral performance. IHCI expands on the interpretation of human activities, known as W4 (what, where, when, who). While W4 only addresses the apparent perceptual aspect of human behavior the W5+ technology for IHCI described in this paper addresses also the why and how questions, whose solution requires recognizing specific cognitive states. IHCI integrates parsing and interpretation of nonverbal information with a computational cognitive model of the user which, in turn, feeds into processes that adapt the interface to enhance operator performance and provide for rational decision-making. The technology proposed is based on a general four-stage interactive framework, which moves from parsing the raw sensory-motor input, to interpreting the user's motions and emotions, to building an understanding of the user's current cognitive state. It then diagnoses various problems in the situation and adapts the interface appropriately. The interactive component of the system improves processing at each stage. Examples of perceptual, behavioral, and cognitive tools are described throughout the paper Adaptive and intelligent HCI are important for novel applications of computing, including ubiquitous and human-centered computing.

关键词： adaptation behavioral performance cognitive modeling decision-making feedback human-centered computing human-computer interaction (HCI) intelligent interfaces interpretation of human behavior nonverbal information perceptual modeling ubiquitous computing

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Sequential Transcatheter Arterial Chemoembolization and Portal Vein Embolization versus Portal Vein Embolization Only before Major Hepatectomy for Patients with Hepatocellular Carcinoma

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ANNALS OF SURGICAL ONCOLOGY 2011年第5期18卷 1251-1257页

作者： Yoo, Hyunkyung Kim, Jin Hyoung Ko, Gi-Young Kim, Kyoung Won Gwon, Dong Il Lee, Sung-Gyu Hwang, Shin Univ Ulsan Dept Radiol Coll Med Seoul South Korea Univ Ulsan Res Inst Radiol Asan Med Ctr Coll Med Seoul South Korea Univ Ulsan Dept Surg Div Hepatobiliary Surg & Liver Transplantat Asan Med CtrColl Med Seoul South Korea

To evaluate the safety and efficacy of sequential transcatheter arterial chemoembolization (TACE) and portal vein embolization (PVE) prior to surgery in hepatocellular carcinoma (HCC) patients and to compare the clinical outcome of the combined procedure with that of a matched group of patients undergoing PVE alone. From 1997 to 2008, 135 patients with HCC underwent sequential TACE and PVE (n = 71) or PVE alone (n = 64) before right hepatectomy. PVE was performed mean 1.2 months after TACE. In both groups, computed tomography (CT) and liver volumetry were performed before and 2 weeks after PVE to assess degree of left lobe hypertrophy. Baseline patient and tumor characteristics were similar in the two groups. After PVE, the chronological changes of liver enzymes were similar in the two groups. The mean increase in percentage future liver remnant (FLR) volume was higher in the TACE + PVE group (7.3%) than in the PVE-only group (5.8%) (P = 0.035). After surgery, incidence of hepatic failure was higher in the PVE-only group (12%) than in the TACE + PVE (4%) group (P = 0.185). Overall (P = 0.028) and recurrence-free (P = 0.001) survival rates were significantly higher in the TACE + PVE group than in the PVE-only group. Sequential TACE and PVE before surgery is a safe and effective method to increase the rate of hypertrophy of the FLR and leads to longer overall and recurrence-free survival in patients with HCC.

关键词： Matched Groups Hepatocellular Cancer chemoembolization Sequential Acute Liver Failure cisplatin/vinblastine embolization of portal vein Hypertrophy Hepatectomy human-centered computing Surgery Patients

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Differential timing of oxidative DNA damage and telomere shortening in hepatitis C and B virus-related liver carcinogenesis

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TRANSLATIONAL RESEARCH 2016年 168卷 122-133页

作者： Piciocchi, Marika Cardin, Romilda Cillo, Umberto Vitale, Alessandro Cappon, Andrea Mescoli, Claudia Guido, Maria Rugge, Massimo Burra, Patrizia Floreani, Annarosa Farinati, Fabio Univ Padua Dept Surg Oncol & Gastroenterol Via Giustiniani 2 I-35128 Padua Italy Univ Florence Dept Expt & Clin Med Florence Italy Univ Padua Dept Med I-35128 Padua Italy

In viral hepatitis, inflammation is correlated with chronic oxidative stress, one of the biological events leading to DNA damage and hepatocellular carcinoma (HCC) development. Aim of this study was to investigate the complex molecular network linking oxidative damage to telomere length and telomerase activity and regulation in hepatitis C and B virus-related liver carcinogenesis. We investigated 142 patients: 21 with HCC (in both tumor and peritumor tissues) and 121 with chronic viral hepatitis in different stages. We evaluated 8-hydroxydeoxyguanosine (8-OHdG), marker of oxidative DNA damage, OGG1 gene polymorphism, telomere length, telomerase activity, TERT promoter methylation, and mitochondrial TERT localization. In hepatitis C-related damage, 8-OHdG levels increased since the early disease stages, whereas hepatitis B-related liver disease was characterized by a later and sharper 8-OHdG accumulation (P = 0.005). In C virus-infected patients, telomeres were shorter (P = 0.03), whereas telomerase activity was higher in tumors than that in the less advanced stages of disease in both groups (P = 0.0001, P = 0.05), with an earlier increase in hepatitis C. Similarly, TERT promoter methylation was higher in tumor and peritumor tissues in both groups (P = 0.02, P = 0.0001). Finally, TERT was localized in mitochondria in tumor and peritumor samples, with 8-OHdG levels significantly lower in mitochondria! than those in genomic DNA (P = 0.0003). These data describe a pathway in which oxidative DNA damage accumulates in correspondence with telomere shortening, telomerase activation, and TERT promoter methylation with a different time course in hepatitis B and C virus-related liver carcinogenesis. Finally, TERT localizes in mitochondria in HCC, where it lacks a canonical function.

关键词： Herpesvirus B Telomerase Telomere Shortening DNA Damage Hepatocarcinogenesis Tumours human-centered computing Hepatitis C Mitochondria

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Easing the Smart Home: A rule-based language and multi-agent structure for end user development in Intelligent Environments

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JOURNAL OF AMBIENT INTELLIGENCE AND SMART ENVIRONMENTS 2010年第4期2卷 437-438页

作者： Garcia-Herranz, Manuel Alaman, Xavier Haya, Pablo A. Univ Autonoma Madrid Campus Cantoblanco Madrid 28039 Spain

The present paper summarizes the Phd Dissertation of Manuel Garcia-Herranz [1] including the oral defense's.

关键词： Ubiquitous computing human-centered computing rule-based processing command and control

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The Acoustically Emotion-Aware Conversational Agent With Speech Emotion Recognition and Empathetic Responses

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IEEE TRANSACTIONS ON AFFECTIVE computing 2023年第1期14卷 17-30页

作者： Hu, Jiaxiong Huang, Yun Hu, Xiaozhu Xu, Yingqing Tsinghua Univ Acad Arts & Design Beijing 100084 Peoples R China Univ Illinois Sch Informat Sci Champaign IL 61820 USA Tsinghua Univ Dept Comp Sci & Technol Beijing 100084 Peoples R China

Emotion is important for the conversational user interface. In prior research, conversational agents (CAs) employ natural language process techniques to create affective interaction based on text. However, the use of acoustic features of speech for voice-based CAs is under exploration. This work presents an acoustically emotion-aware CA that enables speech emotion recognition and stylizes responses with empathetic feedback and interjections. We conducted an experiment with 75 participants to evaluate their perceived emotional intelligence (PEI) after interacting with the CA. Our results show that the acoustical emotion-awareness increased the participants' PEI of the CA, and the empathetic responses from the CA helped alleviate some participants' negative emotions. Our work provides implications for designing future CAs with better PEI.

关键词： human-centered computing emotion in human-computer interaction influencing human emotional states intelligent agents

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A crowdsourcing method to develop virtual human conversational agents

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INTERNATIONAL JOURNAL OF human-COMPUTER STUDIES 2012年第4期70卷 301-319页

作者： Rossen, Brent Lok, Benjamin Univ Florida Gainesville FL 32611 USA

Educators in medicine, psychology, and the military want to provide their students with interpersonal skills practice. Virtual humans offer structured learning of interview skills, can facilitate learning about unusual conditions, and are always available. However, the creation of virtual humans with the ability to understand and respond to natural language requires costly engineering by conversation knowledge engineers (generally computer scientists), and incurs logistical cost for acquiring domain knowledge from domain experts (educators). We address these problems using a novel crowdsourcing method entitled human-centered Distributed Conversational Modeling. This method facilitates collaborative development of virtual humans by two groups of end-users: domain experts (educators) and domain novices (students). We implemented this method in a web-based authoring tool called Virtual People Factory. Using Virtual People Factory, medical and pharmacy educators are now creating natural language virtual patient interactions on their own. This article presents the theoretical background for human-centered Distributed Conversational Modeling, the implementation of the Virtual People Factory authoring tool, and five case studies showing that human-centered Distributed Conversational Modeling has addressed the logistical cost for acquiring knowledge. Published by Elsevier Ltd.

关键词： Virtual humans Agents and intelligent systems human-centered computing Distributed knowledge acquisition End-user programming

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Loose ontological coupling and the Social Semantic Web

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JOURNAL OF AMBIENT INTELLIGENCE AND humanIZED computing 2013年第3期4卷 349-356页

作者： Cudre-Mauroux, Philippe Univ Fribourg eXascale Infolab CH-1700 Fribourg Switzerland

Best practices for the publication of Semantic Web data currently place an unacceptably high burden on the end-user, who is supposed to locate and embrace third-party, ontological structures prior to publishing any information. This paper argues for a different publication paradigm where end-users are encouraged to publish potentially incomplete or conflicting information according to their own local context, and where heterogeneous data is consolidated a posteriori through bottom-up, decentralized processes. This approach has two key advantages: first, it greatly simplifies the publication of semantic information by allowing users to contribute purely local data, without any consideration for global schemas or third-party structures. Second, it takes advantage of expressive, semantic links to relate both schemas and instances, creating complex webs of knowledge where cultural or social differences can flourish and be confronted one another.

关键词： Social semantics human-centered computing Loosely-coupled semantics Web of data Emergent semantics

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Tangible interventions for office work well-being: approaches, classification, and design considerations

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BEHAVIOUR & INFORMATION TECHNOLOGY 2024年第10期43卷 2151-2175页

作者： Brombacher, Hans Houben, Steven Vos, Steven Eindhoven Univ Technol Dept Ind Design Eindhoven Netherlands Fontys Univ Appl Sci Eindhoven Netherlands

Office well-being aims to explore and support a healthy, balanced and active work style in office environments. Recent work on tangible user interfaces has started to explore the role of physical, tangible interfaces as active interventions to explore how to tackle problems such as inactive work and lifestyles, and increasingly sedentary behaviours. We identify a fragmented research landscape on tangible Office well-being interventions, missing the relationship between interventions, data, design strategies, and outcomes, and behaviour change techniques. Based on the analysis of 40 papers, we identify 7 classifications in tangible Office well-being interventions and analyse the intervention based on their role and foundation in behaviour change. Based on the analysis, we present design considerations for the development of future tangible Office well-being design interventions and present an overview of the current field and future research into tangible Office well-being interventions to design for a healthier and active office environment.

关键词： human-centered computing human computer interaction (HCI) HCI design and evaluation methods > Office well-being tangible user interfaces work well-being Office environment

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The Seven Deadly Myths of "Autonomous Systems"

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IEEE INTELLIGENT SYSTEMS 2013年第3期28卷 54-61页

作者： Bradshaw, Jeffrey M. Hoffman, Robert R. Johnson, Matthew Woods, David D. Ohio State Univ Inst Ergon Columbus OH 43210 USA

As designers conceive and implement what are commonly (but mistakenly) called autonomous systems, they adhere to certain myths of autonomy that are not only damaging in their own right, but also by their continued propagation. This article busts such myths and gives reasons why each of these myths should be called out and cast aside.

关键词： Context awareness human computer interaction Intelligent systems Man machine systems Resource management Teamwork autonomous systems human-centered computing intelligent systems

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Expressive Talking Avatars

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IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS 2024年第5期30卷 2538-2548页

作者： Pan, Ye Tan, Shuai Cheng, Shengran Lin, Qunfen Zeng, Zijiao Mitchell, Kenny Shanghai Jiao Tong Univ Shanghai Peoples R China Tencent Games Shenzhen Peoples R China Edinburgh Napier Univ Edinburgh Scotland

Stylized avatars are common virtual representations used in VR to support interaction and communication between remote collaborators. However, explicit expressions are notoriously difficult to create, mainly because most current methods rely on geometric markers and features modeled for human faces, not stylized avatar faces. To cope with the challenge of emotional and expressive generating talking avatars, we build the Emotional Talking Avatar Dataset which is a talking-face video corpus featuring 6 different stylized characters talking with 7 different emotions. Together with the dataset, we also release an emotional talking avatar generation method which enables the manipulation of emotion. We validated the effectiveness of our dataset and our method in generating audio based puppetry examples, including comparisons to state-of-the-art techniques and a user study. Finally, various applications of this method are discussed in the context of animating avatars in VR.

关键词： human computer interaction (HCI) HCI design and evaluation methods User studies Computer graphics Graphics systems and interfaces Virtual reality human-centered computing

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