Real Time Web Search Framework for Performing Efficient Retrieval of Data

With the rapidly growing amount of information on the internet, real-time system is one of the key strategies to cope with the information overload and to help users in finding highly relevant information. Real-time events and domain-specific information are important knowledge base references on the Web that frequently accessed by millions of users. Real-time system is a vital to product and a technique must resolve the context of challenges to be more reliable, e.g. short data life-cycles, heterogeneous user interests, strict time constraints, and context-dependent article relevance. Since real-time data have only a short time to live, real-time models have to be continuously adapted, ensuring that real-time data are always up-to-date. The focal point of this manuscript is for designing a real-time web search approach that aggregates several web search algorithms at query time to tune search results for relevancy. We learn a context-aware delegation algorithm that allows choosing the best real-time algorithms for each query request. The evaluation showed that the proposed approach outperforms the traditional models, in which it allows us to adapt the specific properties of the considered real-time resources. In the experiments, we found that it is highly relevant for most recently searched queries, consistent in its performance, and resilient to the drawbacks faced by other algorithms

Example Based Caricature Synthesis

The likeness of a caricature to the original face image is an essential and often overlooked part of caricature production. In this paper we present an example based caricature synthesis technique, consisting of shape exaggeration, relationship exaggeration, and optimization for likeness. Rather than relying on a large training set of caricature face pairs, our shape exaggeration step is based on only one or a small number of examples of facial features. The relationship exaggeration step introduces two definitions which facilitate global facial feature synthesis. The first is the T-Shape rule, which describes the relative relationship between the facial elements in an intuitive manner. The second is the so called proportions, which characterizes the facial features in a proportion form. Finally we introduce a similarity metric as the likeness metric based on the Modified Hausdorff Distance (MHD) which allows us to optimize the configuration of facial elements, maximizing likeness while satisfying a number of constraints. The effectiveness of our algorithm is demonstrated with experimental results

Machine Sensation

Emphasising the alien qualities of anthropomorphic technologies, Machine Sensation makes a conscious effort to increase rather than decrease the tension between nonhuman and human experience. In a series of rigorously executed cases studies, including natural user interfaces, artificial intelligence as well as sex robots, Leach shows how object-oriented ontology enables one to insist upon the unhuman nature of technology while acknowledging its immense power and significance in human life. Machine Sensation meticulously engages OOO, Actor Network Theory, the philosophy of technology, cybernetics and posthumanism in innovative and gripping ways

Advances in Robotics, Automation and Control

The book presents an excellent overview of the recent developments in the different areas of Robotics, Automation and Control. Through its 24 chapters, this book presents topics related to control and robot design; it also introduces new mathematical tools and techniques devoted to improve the system modeling and control. An important point is the use of rational agents and heuristic techniques to cope with the computational complexity required for controlling complex systems. Through this book, we also find navigation and vision algorithms, automatic handwritten comprehension and speech recognition systems that will be included in the next generation of productive systems developed by man

Experience requirements

Video game development is a high-risk effort with low probability of success. The interactive nature of the resulting artifact increases production complexity, often doing so in ways that are unexpected. New methodologies are needed to address issues in this domain. Video game development has two major phases: preproduction and production. During preproduction, the game designer and other members of the creative team create and capture a vision of the intended player experience in the game design document. The game design document tells the story and describes the game - it does not usually explicitly elaborate all of the details of the intended player experience, particularly with respect to how the player is intended to feel as the game progresses. Details of the intended experience tend to be communicated verbally, on an as-needed basis during iterations of the production effort. During production, the software and media development teams attempt to realize the preproduction vision in a game artifact. However, the game design document is not traditionally intended to capture production-ready requirements, particularly for software development. As a result, there is a communications chasm between preproduction and production efforts that can lead to production issues such as excessive reliance on direct communication with the game designer, difficulty scoping project elements, and difficulty in determining reasonably accurate effort estimates. We posit that defining and capturing the intended player experience in a manner that is influenced and informed by established requirements engineering principles and techniques will help cross the communications chasm between preproduction and production. The proposed experience requirements methodology is a novel contribution composed of: a model for the elements that compose experience requirements, a framework that provides guidance for expressing experience requirements, and an exemplary process for the elicitation, capture, and negotiation of experience requirements. Experience requirements capture the designer' s intent for the user experience; they represent user experience goals for the artifact and constraints upon the implementation and are not expected to be formal in the mathematical sense. Experience requirements are evolutionary in intent - they incrementally enhance and extend existing practices in a relatively lightweight manner using language and representations that are intended to be mutually acceptable to preproduction and to production

Feedback-Based Gameplay Metrics and Gameplay Performance Segmentation: An audio-visual approach for assessing player experience.

Gameplay metrics is a method and approach that is growing in popularity amongst the game studies research community for its capacity to assess players’ engagement with game systems. Yet, little has been done, to date, to quantify players’ responses to feedback employed by games that conveys information to players, i.e., their audio-visual streams. The present thesis introduces a novel approach to player experience assessment - termed feedback-based gameplay metrics - which seeks to gather gameplay metrics from the audio-visual feedback streams presented to the player during play. So far, gameplay metrics - quantitative data about a game state and the player's interaction with the game system - are directly logged via the game's source code. The need to utilise source code restricts the range of games that researchers can analyse. By using computer science algorithms for audio-visual processing, yet to be employed for processing gameplay footage, the present thesis seeks to extract similar metrics through the audio-visual streams, thus circumventing the need for access to, whilst also proposing a method that focuses on describing the way gameplay information is broadcast to the player during play. In order to operationalise feedback-based gameplay metrics, the present thesis introduces the concept of gameplay performance segmentation which describes how coherent segments of play can be identified and extracted from lengthy game play sessions. Moreover, in order to both contextualise the method for processing metrics and provide a conceptual framework for analysing the results of a feedback-based gameplay metric segmentation, a multi-layered architecture based on five gameplay concepts (system, game world instance, spatial-temporal, degree of freedom and interaction) is also introduced. Finally, based on data gathered from game play sessions with participants, the present thesis discusses the validity of feedback-based gameplay metrics, gameplay performance segmentation and the multi-layered architecture. A software system has also been specifically developed to produce gameplay summaries based on feedback-based gameplay metrics, and examples of summaries (based on several games) are presented and analysed. The present thesis also demonstrates that feedback-based gameplay metrics can be conjointly analysed with other forms of data (such as biometry) in order to build a more complete picture of game play experience. Feedback based game-play metrics constitutes a post-processing approach that allows the researcher or analyst to explore the data however they wish and as many times as they wish. The method is also able to process any audio-visual file, and can therefore process material from a range of audio-visual sources. This novel methodology brings together game studies and computer sciences by extending the range of games that can now be researched but also to provide a viable solution accounting for the exact way players experience games

In Gameplay : the invariant structures and varieties of the video game gameplay experience

This dissertation is a multidisciplinary study on video game gameplay as an autonomous form of vernacular experience. Plays and games are traditional research subjects in folkloristics, but commercial video games have not been studied yet. For this reason, methods and concepts of the folkloristic research tradition have remained unknown in contemporary games studies. This thesis combines folkloristics, game studies and phenomenological enactive cognitive science in its investigations into player–game interaction and the video game gameplay experience at large. In this dissertation, three representative survey samples (N=2,594, N=845, N=1,053) on “Rewarding gameplay experience” are analyzed using statistical analysis methods. The samples were collected in 2014–2017 from Finnish and Danish adult populations. This dissertation also analyzes data from 32 interviews, through which the survey respondents’ gameplay preferences, gaming memories, and motivations to play were further investigated. By combining statistical and qualitative data analyses, this work puts forward a mixed-methods research strategy and discusses how the findings relate to prior game research from several disciplines and schools of thought. Based on theoretical discussions, this dissertation argues that the video game gameplay experience as a cultural phenomenon consists of eight invariants in relation to which each individual gameplay experience can be interpreted: The player must demonstrate a lusory attitude (i), and a motivation to play (ii). The gameplay experience consists of explorative and coordinative practices (iii), which engender a change in the player’s self-experience (iv). This change renders the gameplay experience inherently emotional (v) and performative (vi) in relation to the gameworld (vii). The gameplay experience has the dramatic structure of a prototypical narrative (viii) although a game as an object cannot be regarded a narrative in itself. As a key result of factor analytical studies and qualitative interview analyses, a novel approach to understanding player–game interaction is put forward. An original gameplay preference research tool and a player typology are introduced. This work argues, that, although video games as commercial products would not be intuitive research subjects for folkloristics, video game gameplay, player–game interaction, and the traditions in experiencing and narrating gameplay do not differ drastically from those of traditional social games. In contrast to this, all forms of gameplay are argued to be manifestations of the same vernacular phenomenon. Indeed, folkloristic research could pay more attention to how culture is experienced, modified, varied and expressed, regardless of whether the research subject is a commercial product or not.Käsillä oleva väitöskirja on monitieteellinen tutkimus videopelien pelaamisesta itsenäisenä kansanomaisen kokemuksen muotona. Pelien ja leikkien tutkimus on perinteikäs tutkimusaihe folkloristiikassa, mutta kaupallisten videopelien tutkimusta ei ole juuri tehty. Tästä syystä folkloristiikan tutkimusmenetelmät ja -käsitteet ovat jääneet tuntemattomaksi nykyaikaisessa pelitutkimuksessa. Tutkimus yhdistää folkloristiikan ja pelitutkimuksen näkökulmien lisäksi enaktiivisen kognition fenomenologista teoriaa pelaaja–peli-vuorovaikutuksen tutkimukseen sekä pelikokemuksen analyysiin. Tutkimuksessa analysoidaan tilastotieteellisin menetelmin kolmea aikuisväestöä edustavaa ”Palkitseva pelikokemus” -kyselytutkimusaineistoa (N=2,594, N=845, N=1,053), jotka kerättiin Suomesta ja Tanskasta vuosina 2014–2017. Kyselytutkimusaineiston rinnalla analysoidaan 32 teemahaastattelun aineistoa. Haastatteluilla tuotettiin syvempää ymmärrystä kyselyyn vastanneiden henkilöiden pelimieltymyksistä, pelimuistoista ja pelimotivaatioista. Tilastoaineiston ja haastatteluaineiston analyysi tuodaan yhteen monimenetelmällisellä ja dialogisella tutkimusotteella, joka yhdistää havainnot usealla eri tutkimusalalla tehtyyn pelitutkimukseen. Teoreettisen analyysin tuloksena argumentoidaan, että videopelien pelikokemusta ilmiönä määrittää kahdeksan muuttumatonta ominaisuutta, joiden suhteen kunkin yksittäisen pelikokemuksen ainutlaatuisuutta voidaan tarkastella: Pelaajalla tulee olla leikkisä asenne (i) ja motivaatio pelaamiseen (ii). Pelaamisen kokemus rakentuu tutkivista ja suorittavista käyntänteistä (iii), jotka tuovat väliaikaisen muutoksen pelaavan henkilön minäkokemukseen (iv). Tämän muutoksen myötä pelaajuudesta muodostuu emotionaalinen (v) ja performatiivinen (vi) positio suhteessa pelimaailmaan (vii). Näin syntyvän omakohtaisen pelikokemuksen rakenne vastaa kertomuksen dramaattista perusrakennetta (viii), vaikka peliä itsessään ei voida pitää kertomuksena. Tutkimuksen empiirisenä tuloksena esitellään faktorianalyyttisiin tapaustutkimuksiin ja laadullisten aineistojen analyysiin perustuva uudenlainen näkökulma ja menetelmä pelaaja–peli-vuorovaikutuksen ja pelimieltymyksen tutkimukseen, sekä edelliseen perustuva pelaajatyyppiluokittelu. Samalla väitetään, että vaikka videopelit kaupallisina esineinä eivät olisi folkloristiikan tutkimuskohteita, videopelien pelaaminen, pelaaja–peli-vuorovaikutus ja pelien kokemisen tavat eivät eroa ratkaisevasti pihaleikeistä vaan ovat saman kansanomaisen ilmiön esiintymiä. Folkloristisen tutkimuksen soisikin kiinnittävän nykyistä painokkaampaa huomiota kulttuurin kokemisen, muokkaamisen ja ilmaisun tapoihin riippumatta siitä, onko tarkastelun kohteena kaupallinen tuote vai ei