Fingertips detection for human interaction system

Fingertips of human hand play an important role in hand-based interaction with computers. Identification of fingertips' positions in hand images is vital for developing a human computer interaction system. This paper proposes a novel method for detecting fingertips of a hand image analyzing the concept of the geometrical structural information of fingers. The research is divided into three parts: First, hand image is segmented for detecting hand, Second, invariant features (curvature zero-crossing points) are extracted from the boundary of the hand, Third, fingertips are detected. Experimental results show that the proposed approach is promising.

Recognition: combining human interaction and a digital performing agent

Virtual and augmented environments are often dependent on human intervention for change to occur. However there are times when it would be advantageous for appropriate human-like activity to still occur when there are no humans present. In this paper, we describe the installation art piece Recognition, which uses the movement of human participants to effect change, and the movement of a performing agent when there are no humans present. The agent's Artificial Neural Network has learnt appropriate movements from a dancer and is able to generate suitable movement for the main avatar in the absence of human participants.

Ecosystems and human well-being

■ Human well-being has several key components: the basic material needs for a good life, freedom and choice, health, good social relations, and personal security. Well-being exists on a continuum with poverty, which has been defined as"pronounced deprivation in well-being."
■ How well-being and ill-being, or poverty, are expressed and experienced is context- and situation-dependent, reflecting local social and personal factors such as geography, ecology, age, gender,and culture.These concepts are complex and value-laden.
■ Ecosystems are essential for human well-being through their provisioning, regulating, cultural, and supporting services. Evidence in recent decades of escalating human impacts. on ecological systems worldwide raises concerns about the consequences of ecosystem changes for human well-being.
■ Human well-being can be enhanced through sustainable human interaction with ecosystems with the support of appropriate instruments, institutions, organizations, and technology. creation of these through participation and transparency may contribute to people's freedoms and choices and to increased economic, social,and ecological security.
■ Some believe that the problems from the depletion and degradation of ecological capital can be largely overcome by the substitution of physical and human capital. Others believe that there are more significant limits to such substitutions.The scope for substitutions varies by socioeconomic status.
■ We identify direct and indirect pathways between ecosystem change and human well-being,whether it be positive or negative.lndirect effects are characterized by more complex webs of causation, involving social, economic, and political threads. Threshold points exist beyond which rapid changes to human well-being can occur.
■ Indigent poorly resourced, and otherwise disadvantaged communities are generally the most vulnerable to adverse ecosystem change. Spirals, both positive and negative, can occur for any population, but the poor are more vulnerable.      
■ Functioning institutions are vital to enable equitable access to ecosystem services. lnstitutions sometimes fail or remain undeveloped because of powerful individuals or groups. Bodies that mediate the distribution of goods and services may also be appropriated for the benefit of powerful minorities.
■ For poor people, the greatest gains in well-being will occur through more equitable and secure access to ecosystem services. In the long run, the rich can contribute greatly to human well-being by reducing their substantial impacts on ecosystems and by facilitating greater access to ecosystem services by the poor.
■ We argue ecological security warrants recognition as a sixth freedom of equal weight with participative freedom, economic   facilities, social opportunities, transparency guarantees, and protective security.

The need to vent and dissatisfactory self-service technology encounters

Reports of customer dissatisfaction with self-service technologies (SSTs) are becoming increasingly common. The SST context is characterised by customer participation in service production and delivery, independently of service personnel. With no opportunity for humanto- human interaction, feelings of customer irritation and frustration can have a tendency to build-up in dissatisfactory SST encounters. If SSTs do not perform as promised, customers can become angry and frustrated, and do not have the security or reassurance of human service personnel. With this in mind, it is argued that customers’ “need to vent” will be an important predictor of customers’ complaint behaviours (CCBs), i.e., voice, negative word of mouth, negative “word of mouse”, third party action, false loyalty and exit, in dissatisfactory SST encounters. The “need to vent” is defined as the need, when one has a problem, to seek relief by expressing one’s problem / “getting it off one’s chest”. This construct has been subject to little conceptual or empirical scrutiny, and to the researchers’ knowledge, has not been previously operationalised or measured. This paper begins to address this gap by presenting a conceptual model and hypotheses depicting the relationships between the need to vent and CCBs in the context of SSTs.

Sustainability and health : supporting global ecological integrity in public health

Radical changes in the biosphere and human interaction with the environment are increasingly impacting on the health of populations across the world. Diseases are crossing the species barrier, and spreading rapidly through globalized transport systems. From new patterns of cancer to the threat of global pandemics, it is imperative that public health practitioners acknowledge the interdependence between the sustainability of the environment and the sustainability of the human species.* Why are issues of global and local sustainability of increasing importance to the public's health?* Why do issues of sustainability require new practices within the professions of public health?* How can future and current public health practitioners develop those new practices?Drawing on scientific evidence of global and local environmental changes, Sustainability and Health offers a thorough background and practical solutions to the overlapping issues in environment and health. It examines potential and existing responses to global and local environment and health issues, involving individuals, community, industry and government. The authors introduce a range of emerging conceptual frameworks and theoretical perspectives, link IT and epidemiology and explain how scoping can link program design, delivery, data collection and evaluation in projects from their very beginning. Public health practitioners need to be able to manage health issues that cut across environmental, economic and social systems and to develop the capacity for leadership in facilitating change. Incorporating learning activities, readings, international case studies and an open learning approach, this is a valuable resource for students of public and environmental health, as well as medical, environmental and health science professionals.

Pedagogy and institutional values : the social capital that underpins socially constructive pedagogy and the common good

The analysis of Syed Hussein Alatas, provides us with a basic framework from which to engage the way creativity and change can be articulated in education without slipping into a neo-colonial mindset. The core binary that Alatas presents us is between the ‘captive’ mind and the ‘creative’ mind. Contemporary Malaysian educational literature recognises that the demands of the knowledge economy and globalization necessitate engaging with socially constructivist pedagogy as a way of addressing the limitations and narrowness of what are referred to as traditional authoritarian ‘top down’ teaching methods. However this retheorization of pedagogical practice needs to be approached in a fashion that recognises and respects local values and culture. The social values and capital that inform pedagogy both in its formal level as officially sanctioned techniques but also in its informal level as the implicit practices that characterise human interaction on campus require a much closer look at the relationship between pedagogy, social structure and social values. The clear yet very deep insight of Syed Hussein Alatas, on the importance of the creative mind as an alternative to captivity provides us with a Malaysian theorization that is both local but also global and relevant to how we understand reform and education in the higher education sector.

Econstruction : the nature/culture opposition in texts about whales and whaling

A perceived opposition between 'culture' and 'nature', presented as a dominant, biased and antagonistic relationship, is engrained in the language of Western culture. This opposition is reflected in, and adversely influences, our treatment of the ecosphere. I argue that through the study of literature, we can deconstruct this opposition and that such an ‘ecocritical’ operation is imperative if we are to avoid environmental catastrophe. I examine the way language influences our relationship with the world and trace the historical conception of ‘nature’ and its influence on the English language. The whale is, for many people, an important symbol of the natural world, and human interaction with these animals is an indication of our attitudes to the natural world in general. By focusing on whale texts (including older narratives, whaling books, novels and other whale-related texts), I explore the portrayal of whales and the natural world. Lastly, I suggest that Schopenhaurean thought, which has affinities in Moby-Dick, offers a cogent approach to ecocritically reading literature.

Minimizing the limitations of GL analyser of fusion based email classification

In the last decade, the Internet email has become one of the primary method of communication used by everyone for the exchange of ideas and information. However, in recent years, along with the rapid growth of the Internet and email, there has been a dramatic growth in spam. Classifications algorithms have been successfully used to filter spam, but with a certain amount of false positive trade-offs. This problem is mainly caused by the dynamic nature of spam content, spam delivery strategies, as well as the diversification of the classification algorithms. This paper presents an approach of email classification to overcome the burden of analyzing technique of GL (grey list) analyser as further refinements of our previous multi-classifier based email classification [10]. In this approach, we introduce a “majority voting grey list (MVGL)” analyzing technique with two different variations which will analyze only the product of GL emails. Our empirical evidence proofs the improvements of this approach, in terms of complexity and cost, compared to existing GL analyser. This approach also overcomes the limitation of human interaction of existing analyzing technique.

The performing frame

This project explores the ways that creative practices—improvised movement, choreographed dance, and digital video—produce new knowledge about the sociability of public space. In other words, it uses various theoretical concepts and practical strategies to document and analyse the ways people inhabit and sometimes subvert public spaces — such as plazas, malls and piazzas — as part of their everyday experience. Drawing on concepts developed within the fields of performance theory, spatial history, cultural geography and social theory, the project will build a methodological toolbox for understanding the relationships between the diverse groups that use public spaces in Melbourne, Australia. This ‘toolbox’ will subsequently be used to understand analogous public spaces in other parts of the world to generate comparative data about spatial sociability. The research will enable an innovative way of mapping social, civic and political relations in space through a series of creative interventions, and will reveal the politics of everyday movement while exposing tensions between the spaces of public culture — those framed and legitimated by state institutions — and what Michael Warner calls ‘Counter-Publics.’ That is, those oppositional groups who actively seek to use public space in subversive or unauthorised ways.

This project documents a series of performative interventions designed to harness the untapped potential of various forms of street performance genres to function as tools that can produce new ways of understanding the politics of movement in public space. These ‘interventions’ will be generated through a series of practical performance and movement workshops that will draw on street theatre techniques, contact improvisation, Laban movement analysis and contemporary dance choreography. The project will focus on a series of dyadic relationships: self and other, inside and outside, centre and periphery that are relevant to human interaction in public space.
Street performers — musicians, acrobats, jugglers, magicians, mimes and so on — seek public spaces with high volumes of pedestrian traffic in order to maximise their ability to draw an audience and make a living. These performers who create temporary performance zones alter the flow and intensity of movement around them, thereby transforming the plazas, piazzas, town squares and subways favoured by buskers. Some of these performers interact with their audience more than others, and are potentially capable of telling us something about the politics of space. The practice of ‘shadowing’ the movements of passers-by is an increasingly popular form of public entertainment around the world.

Communities, networks, individuals : place, self and everyday life on the internet

In this paper, I review the long-established use of the concept of ‘community’ which attempts both to perceive and analyse the experience of human interaction, mediated by networked computing. Ever since this form of communication commenced, it was clear that it was no ‘bloodless technological ritual’ (Rheingold, 1994), but something much more deeply human and expressive. For many years, the conceptual apparatus of ‘community’ served as the primary means for understanding the limits and potentials of this activity. However, the recent rise of social networking and social media might cast doubt on the legitimacy of this contested term’s continued relevance. Thus, I move from community to self, via the network notation that has come now to dominate our terminologies. I seek to demonstrate that, as the Internet has become interleaved with everyday life to the point where there is no distinction, for many people, between online and offline, we need to think again about how and what community might mean. In doing so, I suggest that the relationship between self and others, mediated or otherwise, is always one of shared ‘place’ but that contemporary practices of social networking differ significantly in how that place is shared and the degree of collective effort required.

Security and trust in opportunistic networks - a survey

Opportunistic networks or OppNets refer to a number of wireless nodes opportunistically communicating with each other in a form of “Store–Carry–Forward”. This occurs when they come into contact with each other without proper network infrastructure. OppNets use wireless technologies, such as IEEE 802.11, WiMAX, Bluetooth, and other short-range radio communication. In OppNets, there is no end-to-end connection between the source and the destination nodes, and the nodes usually have high mobility, low density, limited power, short radio range, and often subject to different kinds of attacks by malicious nodes. Due to these characteristics and features, OppNets are subject to serious security challenges. OppNets strongly depend on human interaction; therefore, the success of securing such networks is based on trust between people. This survey includes the security approaches in OppNets and techniques used to increase their security levels.

Domain-driven classification based on multiple criteria and multiple constraint-level programming for intelligent credit scoring

Extracting knowledge from the transaction records and the personal data of credit card holders has great profit potential for the banking industry. The challenge is to detect/predict bankrupts and to keep and recruit the profitable customers. However, grouping and targeting credit card customers by traditional data-driven mining often does not directly meet the needs of the banking industry, because data-driven mining automatically generates classification outputs that are imprecise, meaningless, and beyond users' control. In this paper, we provide a novel domain-driven classification method that takes advantage of multiple criteria and multiple constraint-level programming for intelligent credit scoring. The method involves credit scoring to produce a set of customers' scores that allows the classification results actionable and controllable by human interaction during the scoring process. Domain knowledge and experts' experience parameters are built into the criteria and constraint functions of mathematical programming and the human and machine conversation is employed to generate an efficient and precise solution. Experiments based on various data sets validated the effectiveness and efficiency of the proposed methods. © 2006 IEEE.

Resistance exercise and insulin regulate AS160 and interaction with 14-3-3 in human skeletal muscle

A single bout of aerobic exercise can enhance insulin action, but whether a similar effect occurs after resistance exercise is unknown. Hyperinsulinemic-euglycemic clamps were performed on eight male subjects at rest and after a single bout and three repeated bouts of resistance exercise over 7 days. Skeletal muscle biopsies were taken before and after the clamp and immediately after a single exercise bout. Whole-body insulin action measured by glucose infusion rate decreased (P < 0.05) after a single exercise bout, whereas in response to repeated bouts of resistance exercise, the glucose infusion rate was similar to the rest trial. In skeletal muscle, Akt substrate of 160 kDa (AS160) phosphorylation, an Akt substrate implicated in the regulation of GLUT4 translocation, and its interaction with 14-3-3 was decreased (P < 0.05) only after a single exercise bout. Insulin increased (P < 0.05) phosphorylation of AS160 and its interaction with 14-3-3, but the insulin response was not influenced by resistance exercise. Phosphorylation of insulin receptor substrate-1 and Akt were similar to changes in AS160 phosphorylation after exercise and/or insulin. In conclusion, a single bout of resistance exercise impairs whole-body insulin action. Regulation of AS160 and interaction with 14-3-3 in skeletal muscle are influenced by resistance exercise and insulin but do not fully explain the effect of resistance exercise on whole-body insulin action.

Human-computer interaction in ubiquitous computing environments

Purpose – The purpose of this paper is to explore characteristics of human-computer interaction when the human body and its movements become input for interaction and interface control in pervasive computing settings.

Design/methodology/approach – The paper quantifies the performance of human movement based on Fitt's Law and discusses some of the human factors and technical considerations that arise in trying to use human body movements as an input medium.

Findings – The paper finds that new interaction technologies utilising human movements may provide more flexible, naturalistic interfaces and support the ubiquitous or pervasive computing paradigm.

Practical implications – In pervasive computing environments the challenge is to create intuitive and user-friendly interfaces. Application domains that may utilize human body movements as input are surveyed here and the paper addresses issues such as culture, privacy, security and ethics raised by movement of a user's body-based interaction styles.

Originality/value – The paper describes the utilization of human body movements as input for interaction and interface control in pervasive computing settings.