ppxscal/embedding_network huggingface dataset:
Towards an ontology for sharing medical images and regions of interest in neuroimaging
Authors: Lynda Temal, Michel Dojat, Gilles Kassel, Bernard Gibaud
Venue: Journal of Biomedical Informatics (2008)

The goal of the NeuroBase project is to facilitate collaborative research in neuroimaging through a federated system based on semantic web technologies. The cornerstone and focus of this paper is the design of a common semantic model providing a unified view on all data and tools to be shared. For this purpose, we built a multi-layered and multi-components formal ontology. This paper presents two major contributions. The first is related to the general methodology we propose for building an application ontology based on consistent conceptualization choices provided by the DOLCE foundational ontology and core ontologies of domains that we reuse; the second concerns the domain ontology we designed for neuroimaging, which encompasses both the objective nature of image data and the subjective nature of image content, through annotations based on regions of interest made by agents (humans or computer programs). We report on realistic domain use-case queries referring to our application ontology.
A Semantic-Aware Ontology-Based Trust Model for Pervasive Computing Environments
Authors: Mohsen Taherian, Rasool Jalili, Morteza Amini
Venue: Proceedings of the 5th international conference on Autonomic and Trusted Computing (2008)

Traditionally, to handle security for stand-alone computers and small networks, user authentication and access control mechanisms would be almost enough. However, considering distributed networks such as the Internet and pervasive environments, these kinds of approaches are confronted with flexibility challenges and scalability problems. This is mainly because open environments lack a central control, and users in them are not predetermined. In such ubiquitous computing environments, issues concerning security and trust become crucial. Adding trust to the existing security infrastructures would enhance the security of these environments. Although many trust models are proposed to deal with trust issues in pervasive environments, none of them considers the semantic relations exist among pervasive elements and especially among trust categories. Employing Semantic Web concepts, we propose a computational trust model based on the ontology structure, considering the mentioned semantic relations. In this model, each entity can calculate its trust in other entities and use the calculated trust values to make decisions about granting or rejecting collaborations. Using ontology structure can make the model extendible to encompass other pervasive features such as context awareness in a simple way.
Skolem Theory and Generalized Quantifiers
Authors: Livio Robaldo
Venue: Proceedings of the 15th international workshop on Logic, Language, Information and Computation (2008)

Several authors proposed to import in Natural Language (NL) the ideas lying behind the well-known Skolem Theorem, defined in standard logic. In these proposals, logical forms aiming at capturing the meaning of NL sentences include referential (functional) terms. Nevertheless, whether referentiality is allowed for non-indefinites NPs, two main problems arise: the need to refer to the maximal sets of entities involved in the predications, and the need to cope with readings where two or more sets of entities are introduced at the same level of scope and have to be evaluated in parallel. Particularly problematic is the representation of sentences featuring nested quantifications. The paper shows how it is possible to incorporate referential terms in the standard Generalized Quantifier account in order to properly deal with nested quantifications.
Emotion in Cognitive Systems Architectures
Authors: Tom Ziemke
Venue: Proceedings of the 5th Hellenic conference on Artificial Intelligence: Theories, Models and Applications (2008)

Inspired by theories of situated and embodied cognition, much AI and cognitive systems research today, autonomous robotics in particular, is biologically inspired, although at very different levels of abstraction. This ranges from explicitly biomimetic approaches, concerned with biological plausibility and scientific modeling, to the use of abstractly biologically inspired techniques such as evolutionary and neural computing in engineering. However, it is quite clear that even today the state of the art in cognitive systems research hardly lives up to the original (e.g. Brooksian) ambition to build complete robotic autonomous agents. The `incompleteness' is particularly evident in the somewhat superficial treatment of the issue of embodiment (and its reduction to the physical body's sensorimotor interaction with the environment) as well the widespread neglect of emotion (or more broadly, affect) and its grounding in homeostatic/bioregulatory processes. This talk discusses work in the European project ICEA - Integrating Cognition, Emotion and Autonomy (cf. www.iceaproject.eu). The twofold hypothesis behind the project is (1) that the emotional and bioregulatory mechanisms that come with the organismic embodiment of living cognitive systems also play a crucial role in the constitution of their "high-level" cognitive processes, and (2) that models of these mechanisms can be usefully integrated in artificial cognitive systems architectures, which will constitute a significant step towards more autonomous robotic cognitive systems capable of dealing with issues such as energy management, selfmonitoring, self-repair, etc. A crucial question addressed in the ICEA project is how in hierarchically organized, layered embodied cognitive architectures lower-level (e.g. bodily, homeostatic) mechanisms can modulate processing at higher levels through emotional/affective mechanisms.
GATE to Accessibility of Computer Graphics
Authors: Ivan Kopeček, Radek Ošlejšek
Venue: Proceedings of the 11th international conference on Computers Helping People with Special Needs (2008)

This paper presents a framework for integrating current information technologies into a platform enabling the blind and visually impaired people to access computer graphics based on the annotated SVG format. We also present a technique enabling the conversion of any graphical object to the annotated SVG format and easy annotation supported by OWL based ontology. This approach is not limited to vector graphics only, but enables also the flexible annotation and application of raster graphics (e.g. photographs). We briefly describe the architecture of the GATE (Graphics Accessible To Everyone) project, which contains the corresponding implemented modules. As an illustration, we provide an example showing how the blind can access the annotated graphics.
Evolvable Agents in Static and Dynamic Optimization Problems
Authors: Juan L. Laredo, Pedro A. Castillo, Antonio M. Mora, Juan J. Merelo, Agostinho Rosa, Carlos Fernandes
Venue: Proceedings of the 10th international conference on Parallel Problem Solving from Nature: PPSN X (2008)

This paper investigates the behaviour of the Evolvable Agent model (EvAg) in static and dynamic environments. The EvAg is a spatially structured Genetic Algorithm (GA) designed to work on Peer-to-Peer (P2P) systems in which the population structure is a small-world graph built by newscast, a P2P protocol. Additionally to the profits in computing performance, EvAg maintains genetic diversity at the small-world relationships between individuals in a sort of social network. Experiments were conducted in order to assess how EvAg scales on deceptive and non-deceptive trap functions. In addition, the proposal was tested on dynamic environments. The results show that the EvAg scales and adapts better to dynamic environments than a standard GA and an improved version of the well-known Random Immigrants Genetic Algorithm.
String, Ring, Sphere: Visualizing Wavefunctions on Different Topologies
Authors: Guy Ashkenazi, Ronnie Kosloff
Venue: Computing in Science and Engineering (2004)

A quantum system's state is described by a complex wave function, which can be supported on different topologies--for example, one-dimensional open space, a closed one-dimensional ring, or a two-dimensional surface of a sphere. Interactive tools represent the quantum state of a single particle constrained to different topologies, while stressing the underlying superposition principle, which is independent of topology. The insight gained by visualizing the same phenomena in different geometrical contexts contributes to the students' ability to abstract, which is the key to understanding quantum phenomena in more complex systems.
Improvement of Film Scratch Inpainting Algorithm Using Sobel Based Isophote Computation over Hilbert Scan Line
Authors: Ki-Hong Ko, Seong-Whan Kim
Venue: Computational Intelligence and Security: International Conference, CIS 2006, Guangzhou, China, November 3-6, 2006, Revised Selected Papers (2007)

Old films or photographs usually have damages from physical or chemical effects, and the damage and digitalization make stain, scratch, scribbling, noise, and digital drop out in frames. Inpainting is a well-known technique to restore damages in images. Bertalmio's inpainting scheme shows good reconstruction, but it requires much time complexity. We present a modified inpainting scheme, where we use Sobel edge operator's magnitude and angle to compute isophotes. We experimented with standard test images, and it shows that our scheme requires smaller time complexity than Bertalmio's scheme and shows comparable reconstructed image quality.
Urban form-making through biased agent interaction
Authors: Kaustuv De Bswas, Simon Kim
Venue: Proceedings of the 7th international joint conference on Autonomous agents and multiagent systems: demo papers (2008)

The urban forms we find in our cities are usually a juxtaposition of several biases. For example, a Developer is biased to think of the city as a 'collection of numbers', an Infrastructure person is biased to think of the city as a 'connection between elements', and from a more political or sociological bias, the city might mean 'density'. Agents subscribing to these different biases constantly attempt to change the city-form in a collective fashion. What is interesting is that even in such a seemingly disjointed decision making scenario, we might expect non-convergent scenarios leading to constant change in urban patterns. However it is observed that cities over a timescale do exhibit organizations or coherent patterns. In this experiment we query this form of pattern or form making through a multi-agent framework and describe a urban game based on it.
Ensuring Transactional Reliability by E-Contracting
Authors: Ting Wang, Paul Grefen, Jochem Vonk
Venue: Proceedings of the 20th international conference on Advanced Information Systems Engineering (2008)

The increasing complexity of business processes makes reliable execution of such processes more and more complicated. Thus, execution reliability has long been a challenge and attracted a lot of attention from both academia and industry. On the one hand, the demand for reliability from the business world has pushed IT to advance in transaction management. On the other hand, the progress in IT has provided more opportunities for the business world to enhance reliability of process execution. Motivated by this observation, we have studied an e-contracting case from a transactional perspective and discovered a gap between the business and IT world in their awareness of the transactional reliability. This gap leads to the inadequacy of transactional agreements between collaborating parties and exposes the process execution to many potential threats, thus decreasing reliability. To bridge the gap, we proposed the TxQoS (Transactional Quality of Service) approach in [1], by specifying and ensuring transactional performance of services/processes in contracts. In this paper, we continue this line of research by illustrating with an overview scenario. The focus is the mechanism of specification, which is essential to realize the contractual approach for transaction management. The unique feature is the interpretation of transactional reliability from a business perspective, which use contracts for specification and ensuring purposes to bridge the gap. Due to space limitations, we present briefly the TxQoS scenario and the specification attributes. Interested readers are refer to [2] for more details.
Automated Chinese Handwriting Error Detection Using Attributed Relational Graph Matching
Authors: Zhihui Hu, Howard Leung, Yun Xu
Venue: Proceedings of the 7th international conference on Advances in Web Based Learning (2008)

Due to the complex shapes and various writing styles of Chinese characters, it is a challenge to automatically detect the errors in people's handwriting. In this paper, we use attributed relational graph to represent a Chinese character. To model the spatial relationships between the strokes in a Chinese character, a refined interval relationship that considers more granular levels is proposed. A novel interval neighborhood graph is also proposed to compute the distances among the refined interval relationships. Error-tolerant graph matching is used to locate the stroke production errors, sequence error as well as the spatial relationship errors. We also propose a pruning strategy in order to speed up the graph matching. Experiment results show that our proposed method outperforms existing approaches in terms of accuracy as well as its ability to handle more kinds of handwriting errors in less computational time.
Development of SUT-CARG car-like robots
Authors: Suchart Punpaisarn, Sarawut Sujitjorn
Venue: Proceedings of the 10th WSEAS International Conference on Automatic Control, Modelling & Simulation (2008)

This article presents the development of the SUT-CARG car-like robot system. CARG car-like robots consist of four mobile robot agents and are built as integrated systems with IR, sonar, ultrasonic, vision sensors and controller modules. Each robot is controlled by a P-controller. Color tracking and flocking of the robot agents are demonstrated VDO available on line http://www.sut.ac.th/engineering/electrical/carg/.
Fit data selection for software effort estimation models
Authors: Koji Toda, Akito Monden, Ken-ichi Matsumoto
Venue: Proceedings of the Second ACM-IEEE international symposium on Empirical software engineering and measurement (2008)

To construct a better multivariate regression model for software effort estimation, this paper proposes a method to select projects as a fit data from a given project data set based on estimation target's features. While regression models were often constructed from all available project data, this paper showed the necessity of fit data selection, and showed that the proposed method is one of the effective and systematic means to do the selection.
What Can Pictorial Representations Reveal about the Cognitive Characteristics of Autism?
Authors: Maithilee Kunda, Ashok Goel
Venue: Proceedings of the 5th international conference on Diagrammatic Representation and Inference (2008)

In this paper, we develop a cognitive account of autism centered around a reliance on pictorial representations. This Thinking in Pictures hypothesis shows significant potential for explaining many autistic behaviors. We support this hypothesis with empirical evidence from several independent behavioral and neuroimaging studies of individuals with autism, each of which shows strong bias towards visual representations and activity. We also examine three other cognitive theories of autism--Mindblindness, Weak Central Coherence, and Executive Dysfunction--and show how Thinking in Pictures provides a deeper explanation for several results typically cited in support of these theories.
Recommendations for e-commerce systems in the tourism industry of sub-Saharan Africa
Authors: Tonderai Maswera, Janet Edwards, Ray Dawson
Venue: Telematics and Informatics (2009)

The recommendations described in this paper are a continuation of research previously reported in the Telematics and Informatics journal. This paper explains how the tourism organisations from sub-Saharan Africa can evolve their websites into marketing tools and how they can overcome the impediments to e-commerce adoption and usage. The recommendations also explain how the other major players within the economies of these countries can make the environment conducive for e-commerce development and growth so that the tourism organisations from this region can break into the lucrative international tourism market. The recommendations were tested by sending them to the African organisations and experts in e-commerce and tourism who have worked in, or are currently based in Africa, south of the Sahara. The results showed most organisations and experts who responded think that these recommendations will help African tourism organisations adopt and use e-commerce. African tourism organisations that intend to implement or are in the process of implementing e-commerce systems should follow the recommendations outlined in this paper to help sub-Saharan Africa reach its tourism potential.
Towards Generalised Accessibility of Computer Games
Authors: Dominique Archambault, Thomas Gaudy, Klaus Miesenberger, Stéphane Natkin, Rolland Ossmann
Venue: Proceedings of the 3rd international conference on Technologies for E-Learning and Digital Entertainment (2008)

Computer games accessibility have initially been regarded as an area of minor importance as there were much more "serious" topics to focus on. Today, the society is slowly moving forward in the direction of accessibility and the conditions come to make new proposals for mainstream game accessibility. In this paper we'll show the main reasons why it is necessary to progress in this direction, then we'll explain how works standard computer applications accessibility and why it is not working in general with games. We will discuss the state of the art in this area and finally we will introduce our vision of future accessibility framework allowing games developer to design accessible games as well as assistive providers the possibility of developing Assistive Games Interfaces.
Advanced controller design using neural networks for nonlinear dynamic systems with application to micro/nano robotics
Authors: J. Sarangapani
Venue:  (2007)

The dissertation focuses on neural network (NN) control designs for nonlinear systems with application to micro/nano robotic. Critical problems in nano scale including thermal drift are also addressed. This dissertation is given in the form of several papers.To start with, a suite of novel controllers is developed in the first paper for the manipulation of microscale objects in a micro-electromechanical system (MEMS). The proposed robust and the adaptive neural network controllers overcome the unknown contact dynamics and ensure their performance in the presence of actuator constraints.Next, in the second paper, thermal drift, as the major source of uncertainty in nano scale, is discussed and compensated by using block based phase-correlation method. This consideration is needed to realize a truly automatic manipulation of nano objects.Subsequently, the third paper uses the drift compensator from the second paper to develop a NN-based adaptive force design for nanomanipulation to accommodate the unknown dynamics, while maintaining a constant force applied on the nano sample.In order to address the optimality in terms of a standard quadratic cost function, the fourth paper introduces a reinforcement learning-based controller for the nanoscale manipulation by considering the Bellman equation. This controller consists of an action network and a critic network. Both of the networks are trained in an online fashion with the updating algorithms derived from dynamic programming (DP).To make our scheme applicable to a more general class of affine systems with immeasurable states, an output feedback design with an extra NN observer is introduced in the final paper while relaxing the separation principle. By using the Lyapunov approach, the stability of the above mentioned controller designs are demonstrated.
Enabling location specific real-time mobile applications
Authors: Ravi Kokku, Karthik Sundaresan, Guofei Jiang
Venue: Proceedings of the 3rd international workshop on Mobility in the evolving internet architecture (2008)

As cellular networks open up and foster the deployment of richer user-centric mobile services, we envision the evolution of a new class of services that involve significant mobile user collaboration for making the services realizable and rapidly deployable. Our position is grounded on the intuition that mobile devices that users carry can act as "powerful" sensors for diverse information about a specific location, and can aid in providing real-time updates to other interested users that are not present at the location. Realizing such services is, however, challenging due to the need for several mechanisms such as (a) incentives for participation from users and network providers, (b) location-specific data collection and delivery and (c) determining trust in users providing updates. These mechanisms become significantly more complex to realize with user mobility. Unifying these mechanisms, in this paper, we propose a framework FLORA that enables rapid evolution of location specific real-time services.
Channel assignment and link scheduling in multi-radio multi-channel wireless mesh networks
Authors: Hua Yu, Prasant Mohapatra, Xin Liu
Venue: Mobile Networks and Applications (2008)

Capacity limitation is one of the fundamental issues in wireless mesh networks. This paper addresses capacity improvement issues in multiradio multi-channel wireless mesh networks. Our objective is to find both dynamic and static channel assignments and corresponding link schedules that maximize the network capacity. We focus on determining the highest gain we can achieve from increasing the number of radios and channels under certain traffic demands. We consider two different types of traffic demands. One is expressed in the form of data size vector, and the other is in the form of data rate vector. For the first type of traffic demand, our objective is to minimize the number of time slots to transport all the data. For the second type of traffic demand, our objective is to satisfy the bandwidth requirement as much as possible. We perform a trade-off analysis between network performance and hardware cost based on the number of radios and channels in different topologies. This work provides valuable insights for wireless mesh network designers during network planning and deployment.
Design, Implementation, and Test of a Multi-Model Systolic Neural-Network Accelerator
Authors: Thierry Cornu, Paolo Ienne, Dagmar Niebur, Patrick Thiran, Marc A. Viredaz
Venue: Scientific Programming (1996)

A multi-model neural-network computer has been designed and built. A compute-intensive application in the field of power-system monitoring, using the Kohonen neural network, has then been ported onto this machine. After a short description of the system, this article focuses on the programming paradigm adopted. The performance of the machine is also evaluated and discussed.
Performing Domain Analysis for Model-Driven Software Reuse
Authors: Daniel Lucrédio, Renata P. M. Fortes, Eduardo S. Almeida, Silvio Lemos Meira
Venue: Proceedings of the 10th international conference on Software Reuse: High Confidence Software Reuse in Large Systems (2008)

This paper presents a domain analysis approach for model-driven domain engineering projects. The objective is to address the problem of identifying which parts of a domain can be automated using model-driven development techniques. We argue that this task should be performed together with domain analysis. In this sense, the paper presents the main activities, guidelines, inputs and outputs of this task. It concludes by presenting the iterative life cycle approach for dealing with complex domains.