Previous research has demonstrated that memory is dependent on the environmental context; memory is better when the same environmental context cues present at study are reinstated at test as compared to when they are not. This finding is called context reinstatement effects (Godden & Baddeley, 1975; Smith, Glenberg, and Bjork, 1978; Smith & Vela, 2001). What is unclear is whether study items are associated with the global context or with unique features within the study environment. We tested whether reinstating a singular feature of a global environment, the odor present during study, was sufficient to produce context reinstatement effects. These results indicated that, in a global environmental context, the global context is not being used as a cue for all the studied items rather than unique aspects of the environment serving as unique cues.

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This dissertation focuses on contextual frames that influence how consumers perceive prices and how that in turn affects their product evaluations and consumption decisions. This research consists of three essays and attempts to further the understanding of contextual factors that affect how consumers perceive prices (essay 1) and how perceptions about prices influence product inferences (essay 2) and decision making (essay 3). While there is a substantial body of research on price framing and price perception, my research identifies and attempts to fill some important gaps in the existing research. In my first essay, I introduce a new price framing effect – the upper limit framing effect. This essay shows that framing the upper limit of a price estimate as less than vs. not more than can result in systematic differences in perceptions regarding the underlying price. This research contributes to the existing price framing research, which primarily focuses on set prices, by investigating price estimates. It also makes important contributions to the temporal and monetary costs and semantic framing literatures and to the literature on negations. In my second essay, I contribute to the existing perceived price-quality research that primarily concerns only the market prices. This essay shows that consumers over-apply the perceived price-quality heuristic when setting product prices by themselves (self-decided prices). Specifically, this research shows that contextual factors that affect self-decided prices in turn influence product inferences, with the relationship between contextual frame and product inferences being mediated by self-decided prices. In my third essay, I contribute to the existing price framing research by showing that in the context of multiple price presentation, the price presentation order (ascending vs. descending) affects the perceived importance of price in the decision making – an effect I term as the price order effect – an effect that is explained by prospect-theory driven loss aversion. Specifically, this research shows that descending (vs. ascending) price presentation order results in significantly lower perceived importance of price in the decision making process which in turn influences subsequent consumption decisions. In addition to the individual contributions of each essay, this dissertation makes an overall contribution to the price framing and price perception research by identifying new price framing effects and by furthering the understanding of how consumers perceive prices and how perceptions about price influences consumer decision making. / Doctor of Philosophy / This dissertation shows how different contexts can influence consumers’ perceptions about product prices. Utilizing a variety of everyday consumption products and scenarios, we show new and interesting ways in which seemingly unrelated contexts and frames can influence price perceptions. Specifically, we show that novel contexts and frames can affect (a) how consumers perceive price magnitude (essay 1), (b) how perceptions about prices influences product inferences (essay 2), and (c) how important a factor is price perceived to be in the decision making process (essay 3). Essay 1 shows that framing the upper limit of a cost estimate as (“less than” vs. “not more than”) results in different perceptions about the underlying cost. Essay 2 shows that counter to intuitive expectations, consumers utilize prices that they themselves decide to pay for a product as being indicative of its quality. Essay 3 shows that ascending vs. descending price orders results in different consumption decisions due to differential perceived importance of price in the decision making. This dissertation also discusses the several important contributions made by this research.

I am interested in creation, the root of what architects do whether they are designing a master plan or a detail. The interesting thing about architecture is that an architect's creation does not exist in a vacuum. Numerous forces operate on the vision of an architect before it can become a reality; the most important being the building's context. Architecture without a site is conjecture and speculation and though it may have its place in some realm of study, it can never be real. For an idea to be manifested, it must be built someplace on this Earth and therefore I believe that architecture is a response to the context of the site. The site informs the architect on the material of the building's construction, how the building is oriented with respect to the sun, how and when the sun is allowed to enter the building, and how the building is approached and therefore entered. The context pushes and pulls on the building, informing the design process and demanding responses. The city offers a context dense in built structures and rich in history and architectural precedence. These parameters should be ever present in the mind of the architect during the design. A good design should respect and enhance the urban situation in which it resides as well as provide a useful scaffold for the architect to build from. By limiting the architect and forcing the integration of the new building with the existing context, the urban condition spurs ingenuity and can actually simplify the endless possibilities of architectural space. A rural site offers a different set of parameters under which the architect must operate. The shape of the land commands the largest influence on a rural design, should the architect look for contextual clues. The rural site can also set the architect free and allow a building to be a pure manifestation of the architect's mind, leaving the building program as the only constraint. The intent of the thesis is to investigate how architects design. How does a building come into existence? By designing two buildings at opposite ends of a contextual spectrum I hope to raise questions in my own mind about how context influences the decisions that are made in the design process. Recognizing these different sets of parameters can lead to a better understanding of context as a guiding force that shapes architecture. / Master of Architecture

This thesis proposes new housing for migrant farm workers outside of Harrodsburg, Kentucky. The housing complex deals with architecture's relationship to place and community while providing a dignified dwelling, imparting a sense of permanence and home to a constantly moving population. The complex deals with place through a connection to the regional built and natural context. By externally revealing programmatic relationships through massing and allowing individual housing units to assert themselves within the collective, the complex becomes an interconnected housing cluster that is neither house nor barn. It instead imparts the image of a small village or settlement, the essence of community. / Master of Architecture

<p>This research concerns exploiting knowledge of the user's environment (i.e., context information) to enrich a user's communication making it more personal, by ensuring that the user receives only relevant messages and calls in his/her current context, and to facilitate more opportunities for communication interactions with people that are in the same context and that share the same interests as this user. We describe in this licentiate thesis the concepts of context-addressed messaging and context-aware session control that enable users to: (1) send messages to others based on their context, rather than their network address and (2) to initiate, adapt, and terminate user's communication sessions based on this user's current context, respectively. These concepts address questions such as: how to discover, select, and switch to an optimal communication means to meet varying user, contextual, communication, and device resource requirements and preferences. A key to solving these problems is to create a representation of the user's context-dependent preferences and to process the user's context-dependent preferences which are part of context triggers. These context triggers can initiate a communication event upon a particular context update. Additionally, in order to provide the described context-aware communication functions, these mechanisms need timely access to the acquired (desired) context information. This in turn raises a plethora of other questions, such as how to discover sensors that provide the desired context information; how to acquire raw context data from these sensors; how to abstract, process, and model this data to become "understandable" to applications and system components; and how to distribute this context to applications that are running on different nodes.</p><p> </p><p>This research is split into three different parts. The first part concerns investigating and implementing context management functions. As part of this research we propose a novel approach for context synthesis using context operators. We also propose a design architecture for context-aware middleware that mediates between the sensors and applications, and that is able to share and retrieve context from other nodes in the network. The second part of our research concerns our proposed mechanism for context-addressed messaging. To implement this mechanism we designed our own message format, called the Common Profile for Context-Addressed Messaging (CPCAM) that is able to use any high level context to compose a context-based address. Additionally, we proposed to use context-based filtering to find the correct message recipients and determine if this message is relevant to these potential message recipients in their current context, as well as to deliver this message to the recipients' preferred device that is adapted using their preferred communication means. At the end of this second part we design context-addressed messaging system operations on top of a SIP and SIMPLE-based network infrastructure. The third part of our research describes context-aware session control mechanisms using context switch and context trigger constructs. A context-switch selects an action from a set of context-dependent actions upon an incoming communication event based on the receiver's current context. In contrast, a context trigger initiates an action based on a context update and the user's preferences that are specified in this updated context. This part illustrates in several examples the context-aware session control mechanisms, i.e. the initiation of a communication session based on the match of a user's preferences and current context, as well as adaptation and (if necessary) termination of an ongoing communication session based upon the user's context-dependent preferences.</p><p> </p><p>The research leading to this licentiate has created network and system level models necessary for implementation of a context-addressed communication system that would enable users to easily design their own personalized, context-aware communication services. The necessary constructs and properties of these models are designed and analyzed in the thesis, as well as in conference papers and other documents published in the process of doing the research for this thesis. A number of remaining open issues and challenges have been outlined as part of the future work.</p><p> </p> / EU FP6 MIDAS (Middleware Platform for Developing and Deploying Advanced Mobile Services) / EU FP6 MUSIC (Self-adapting Applications for Mobile Users In Ubiquitous Computing Environments)

This research concerns exploiting knowledge of the user's environment (i.e., context information) to enrich a user's communication making it more personal, by ensuring that the user receives only relevant messages and calls in his/her current context, and to facilitate more opportunities for communication interactions with people that are in the same context and that share the same interests as this user. We describe in this licentiate thesis the concepts of context-addressed messaging and context-aware session control that enable users to: (1) send messages to others based on their context, rather than their network address and (2) to initiate, adapt, and terminate user's communication sessions based on this user's current context, respectively. These concepts address questions such as: how to discover, select, and switch to an optimal communication means to meet varying user, contextual, communication, and device resource requirements and preferences. A key to solving these problems is to create a representation of the user's context-dependent preferences and to process the user's context-dependent preferences which are part of context triggers. These context triggers can initiate a communication event upon a particular context update. Additionally, in order to provide the described context-aware communication functions, these mechanisms need timely access to the acquired (desired) context information. This in turn raises a plethora of other questions, such as how to discover sensors that provide the desired context information; how to acquire raw context data from these sensors; how to abstract, process, and model this data to become "understandable" to applications and system components; and how to distribute this context to applications that are running on different nodes.   This research is split into three different parts. The first part concerns investigating and implementing context management functions. As part of this research we propose a novel approach for context synthesis using context operators. We also propose a design architecture for context-aware middleware that mediates between the sensors and applications, and that is able to share and retrieve context from other nodes in the network. The second part of our research concerns our proposed mechanism for context-addressed messaging. To implement this mechanism we designed our own message format, called the Common Profile for Context-Addressed Messaging (CPCAM) that is able to use any high level context to compose a context-based address. Additionally, we proposed to use context-based filtering to find the correct message recipients and determine if this message is relevant to these potential message recipients in their current context, as well as to deliver this message to the recipients' preferred device that is adapted using their preferred communication means. At the end of this second part we design context-addressed messaging system operations on top of a SIP and SIMPLE-based network infrastructure. The third part of our research describes context-aware session control mechanisms using context switch and context trigger constructs. A context-switch selects an action from a set of context-dependent actions upon an incoming communication event based on the receiver's current context. In contrast, a context trigger initiates an action based on a context update and the user's preferences that are specified in this updated context. This part illustrates in several examples the context-aware session control mechanisms, i.e. the initiation of a communication session based on the match of a user's preferences and current context, as well as adaptation and (if necessary) termination of an ongoing communication session based upon the user's context-dependent preferences.   The research leading to this licentiate has created network and system level models necessary for implementation of a context-addressed communication system that would enable users to easily design their own personalized, context-aware communication services. The necessary constructs and properties of these models are designed and analyzed in the thesis, as well as in conference papers and other documents published in the process of doing the research for this thesis. A number of remaining open issues and challenges have been outlined as part of the future work. / EU FP6 MIDAS (Middleware Platform for Developing and Deploying Advanced Mobile Services) / EU FP6 MUSIC (Self-adapting Applications for Mobile Users In Ubiquitous Computing Environments)

Advances in Internet-of-Things integrate sensors and actuators in everyday items or even people transforming our society at an accelerated pace. This occurs in areas such as agriculture, logistics, transport, healthcare, and smart cities and has created new ways to interact with and experience entertainment, (serious) games, education, etc. Common to these domains is the challenge to realize and maintain complex relations with any object or individual globally, with the requirement for immediacy in maintaining relations of varying complexity. Existing architectures for maintaining relations on the Internet, e.g., DNS and search engines are insufficient in meeting these challenges. Their deficiencies mandate the research presented in this dissertation enabling the maintenance of dynamic and multi-criteria relationships among entities in real-time in an Internet-of-Things while minimizing the overall cost for maintaining such context-centric relationships. A second challenge is the need to represent nearness in context-centric relationships, since solutions need to build on what is closely related. The dissertation shows that the proximity on relations can be used to bring about the scalability of maintaining relationships across the IoT. It successfully demonstrates the concept and feasibility of self-organizing context-centric overlay networks for maintaining scalable and real-time relationships between endpoints co-located with associated physical entities. This is complemented by an object model for annotating objects and their relationships as derived and defined over the underpinning context interactions. Complementing measures of nearness are added through a non-metric multi-criteria approach to evaluating the notion of context proximity. A query language and an extension to the publish-subscribe approaches achieves distributed support for discovering such relationships; locating entities relative to a defined hyper-sphere of interest. Furthermore, it introduces adaptive algorithms for maintaining such relationships at minimal overall costs. The results demonstrate the feasibility of moving towards context-centric approaches to immersion and that such approaches are realizable over vast and distributed heterogeneous collections of user and their associated context information.

<p>As the development of context aware applications has evolved, there has been a corresponding increase in need for more sophisticated system. The aim for this thesis is the development of a dynamical P2P network system which is based on locations. The P2P network is self organizing and in a lightweight format. Modern technical solutions including   AGPS have facilitated the work associated with the ability to position users and modern mathematical solutions such as spherical trigonometry provides the P2P system with the necessary accuracy even for short distances. The P2P system works on different Java platforms including JSE, JME and Android. Unfortunately the 3G network distributor has not yet solved a NAT traversal problem, which means that the P2P network self organization and architecture has only been proved by means of simulations. Another problem is that certain mathematical formulas are required for the spherical trigonometry and the limitation for JME is that it is unable to handle inverse trigonometry. However, the Android and JSE versions can form a correct P2P network, under the condition that the Android device uses a WIFI connection point outside the 3G distributor network system. This thesis reports the successful testing of the locations-based P2P network.</p> / MediaSense

<p>This project aims to describe how workflow systems can integrate and make use of context information from context rich environments, to enhance the execution of workflow processes. Context information can for example be used to control transitions between activities, activity enactment and process/activity coordination. A dynamic contextual environment also requires that a workflow system is capable of responding to contextual events. A set of requirements for a context-aware workflow system, based on existing workflow standards, theory behind context-aware computing and activity theory, will be presented and elaborated. Prototypes, which illustrate how these requirements can be implemented in a standard based workflow system, are also provided. Based on the solutions presented in the prototypes, a new interface for a workflow enactment service is presented. This new interface serves as the link between the contextual environment and the workflow system. We also present a solution for handling context related exception states. The definition of basic terms in workflow systems are expanded to better support context-aware behaviour. Ideas and solutions for more complex requirements not met in our prototypes are also discussed, such as situated activity coordination.</p>