Making proper decisions in today’s complex world is a challenging task for decision makers. A promising approach that can support decision makers to have a better understanding of complex systems is agent-based modeling. ABM has been developing during the last few decades as a methodology with many different applications and has enabled a better description of the dynamics of complex systems. However, the prescriptive facet of these applications is rarely portrayed. Adding a prescriptive decision-making aspect to ABM can support the (...) decision makers in making better or, in some cases, optimized decisions for the complex problems as well as explaining the investigated phenomena. In this paper, first, the literature of DM with ABM is inquired and classified based on the methods of integration. Performing a scientometric analysis on the relevant literature lets us conclude that the number of publications attempting to integrate DM and ABM has not grown during the last two decades, while analysis of the current methodologies for integrating DM and ABM indicates that they have serious drawbacks. In this regard, a novel nature-inspired model articulation called optimal agent framework has been proposed to ameliorate the disadvantages and enhance the realization of proper decisions in ABM at a relatively low computational cost. The framework is examined with the Bass diffusion model. The results of the simulation for the customized model developed by OAF have verified the feasibility of the framework. Moreover, sensitivity analyses on different agent populations, network structures, and marketing strategies have depicted the great potential of OAF to find the optimal strategies in various stochastic and unconventional conditions which have not been addressed prior to the implementation of the framework. (shrink)

Anecdotal evidence suggests that participants in conversation can sometimes act as a coalition. This implies a level of conversational organization in which groups of individuals form a coherent unit. This paper investigates the implications of this phenomenon for psycholinguistic and semantic models of shared context in dialog. We present a corpus study of multiparty dialog which shows that, in certain circumstances, people with different levels of overt involvement in a conversation, that is, one responding and one not, can nonetheless access (...) the same shared context. We argue that contemporary models of shared context need to be adapted to capture this situation. To address this, we propose “grounding by proxy,” in which one person can respond on behalf of another, as a simple mechanism by which shared context can accumulate for a coalition as a whole. We explore this hypothesis experimentally by investigating how people in a task-oriented coalition respond when their shared context appears to be weakened. The results provide evidence that, by default, coalition members act on each other's behalf, and when this fails they work to compensate. We conclude that this points to the need for a new concept of collective grounding acts and a corresponding concept of collective contexts in psycholinguistic and semantic models of dialog. (shrink)

The attempt is made in this article to analyze and compare the religious policies of the two Safavid and Qajar dynasties’ governments with respect to Sunnite sect. In these eras the related policies differed although the official religion of both regimes was Shiism: The Safavid central government’s confronting policies against Sunnite, the Sunnite elites’ long-term appointments to high state ranks by Qajar Kings and these policies were more consistent in Qajar than Safavid era. Here the approaches of both the dynasties (...) are categorized in four parameters: confronting, excommunication, discrimination and moderation. In Safavid era the first three parameters were more apparent while the fourth parameter is more evident in Qajar era. (shrink)

Feedback such as backchannels and clarification requests often occurs subsententially, demonstrating the incremental nature of grounding in dialogue. However, although such feedback can occur at any point within an utterance, it typically does not do so, tending to occur at Feedback Relevance Spaces. We present a corpus study of acknowledgements and clarification requests in British English, and describe how our low-level, semantic processing model in Dynamic Syntax accounts for this feedback. The model trivially accounts for the 85% of cases where (...) feedback occurs at FRSs, but we also describe how it can be integrated or interpreted at non-FRSs using the predictive, incremental and interactive nature of the formalism. This model shows how feedback serves to continually realign processing contexts and thus manage the characteristic divergence and convergence that is key to moving dialogue forward. (shrink)

Healey et al. use experiments with chat dialogues to test the hypothesis that language co‐ordination is driven by ‘running repairs’. They replace signals of understanding such as “okay” with weaker, ‘spoof’ signals like “ummm”, and replace specific requests for clarification like “on the left?” with signals that suggest a higher degree of misunderstanding like “what?”. The latter manipulation causes participants to switch rapidly to more abstract forms of referring expression.

We present empirical evidence from dialogue that challenges some of the key assumptions in the Pickering & Garrod (P&G) model of speaker-hearer coordination in dialogue. The P&G model also invokes an unnecessarily complex set of mechanisms. We show that a computational implementation, currently in development and based on a simpler model, can account for more of this type of dialogue data.

IntroductionMaking appropriate plans for the provision of hospice care is considered a perceived need in the Iranian health system. The current study aimed to develop a model for establishing hospice care delivery system for the adult patients with cancer.Materials and MethodsThis study is part of a larger study that has been done in four phases. This Health System Policy Research utilized a mixed qualitative-quantitative approach. At the first phase, a qualitative study was conducted which explained the care needs and the (...) requirements for establishing this system from the stakeholders’ perspective. The second phase aimed to examine the current situation of hospice care delivery in Iran and identify and determine the similarities and differences among them in the selected countries. At the third phase, the main areas of the model and the related indicators were extracted and prioritized by consulting with experts. Then the model was formulated. At the fourth phase, the proposed model was validated and finalized in terms of importance, scientific acceptability, and feasibility.ResultsBased on the developed model the first and the most important step in establishing the hospice care delivery system is laying the groundwork in the health system which requires focusing on policymaking. It is necessary to establish hospice centers and implement public awareness raising programs, train, and supply expert manpower, strengthen family physician and referral process, formulate clinical guidelines, encourage the private sector and NGOs.) to invest, develop end-of-life and hospice care service packages, and create quality care indicators. The proposed model had moderate feasibility.ConclusionThis model was developed based on the current Iranian healthcare structure and the needs of terminally ill cancer patients. It can be used as a model tailored to the current state of the health system and community in Iran. It is suggested to use this model as a pilot at the regional level. (shrink)

IntroductionUrinary incontinence is a prevalent disorder amongst older women. Identifying the psychosocial experiences of older women in disease management can improve the patient care process. Hence, the present study aimed to determine the psychosocial experiences of older women in the management of urinary incontinence.MethodsThis qualitative study was conducted using conventional content analysis. The study data were collected via unstructured in-depth face-to-face interviews with 22 older women suffering from urinary incontinence selected via purposive sampling. Sampling and data analysis were done simultaneously (...) and were continued until data saturation. The interviews were recorded, transcribed, and analyzed using the method proposed by Graneheim and Lundman.ResultsThe results indicated that the older people with urinary incontinence had various psychosocial experiences while living with and managing this disease. Accordingly, four main themes were extracted from the data as follows: “problem incompatibility with the disease,” “mental impasse,” “facing social restrictions,” and “concealment and social escapism.”ConclusionThe findings demonstrated that older people with urinary incontinence experienced significant psychosocial pressures while living with this disorder, which affected their psychosocial well-being. Thus, paying attention to these psychosocial experiences while supporting and taking care of these patients can positively impact their psychosocial health and quality of life. (shrink)

Social robots have limited social competences. This leads us to view them as depictions of social agents rather than actual social agents. However, people also have limited social competences. We argue that all social interaction involves the depiction of social roles and that they originate in, and are defined by, their function in accounting for failures of social competence.