ppxscal/embedding_network huggingface dataset:
Weblog success: Exploring the role of technology
Authors: Helen S. Du, Christian Wagner
Venue: International Journal of Human-Computer Studies (2006)

Weblogs have recently gained considerable media attention. Leading weblog sites are already attracting millions of visitors. Yet, success in the highly competitive world of weblogs is not easily achieved. This study seeks to explore weblog success from a technology perspective, i.e. from the impact of weblog-building technology (or blogging tool). Based on an examination of 126 highly successful weblogs tracked over a period of 3 months, we categorized weblogs in terms of popularity rank and growth, and evaluated the relationship between weblog success (in terms of popularity) and technology use. Our analysis indicates that weblog success is associated with the type of blogging tool used. We argue that technology characteristics affect the presentation and organization of weblog content, as well as the social interaction between bloggers, and in turn, affect weblog success or popularity improvement. Based on this analysis, we propose a techno-social success model for weblogs. This model postulates that a weblog's success is mainly associated with its ability to provide value for its users and readers at the content, the technology, and the social levels.
Embodied mobile agents
Authors: Bill Tomlinson, Man Lok Yau, Eric Baumer
Venue: Proceedings of the fifth international joint conference on Autonomous agents and multiagent systems (2006)

The move in many societies toward individuals having multiple networked computational devices -- workstations, notebooks computers, mobile phones, PDAs - radically changes the ways in which people engage those devices. However, we lack interaction paradigms that enable a coherent experience across these technologies. One possible approach to this problem involves the use of embodied mobile agents (EMAs), that is, graphically animated, autonomous or semi-autonomous software systems that can migrate seamlessly from one computational device to another. This paper describes an interactive museum exhibit that was implemented with EMAs, discusses the opportunities and challenges presented by this new form of agent, and consider other potential applications for EMAs. While not a universal solution to challenges of interacting with heterogeneous networks of devices, embodied mobile agents can help to provide a coherent user experience across multiple computational devices.
Toward Full Mobility in Converged Networks
Authors: Rita Puzmanova
Venue: IEEE Distributed Systems Online (2006)

A review of Mobile Internet: Enabling Technologies and Services by Apostolis K. Salkintzis, ed.
Study of Server Workload in Large Online Newspaper
Authors: Zeljko Vrba, Thomas Plagemann, Vera Goebel, Xabiel G. Paneda
Venue: Proceedings of the 26th IEEE International ConferenceWorkshops on Distributed Computing Systems (2006)

In this paper we present an analysis of access traces from a large online newspaper offering both web and Video-on- Demand service. We have analyzed the lifetime of news articles, their popularity, server load, session interactivity, the working set of servers, and the correlation of the number of web and streaming accesses within a session. The results are interpreted in the context of designing a content distribution network targeted at News-on-Demand applications. We show that all of the requested web and streaming content could fit in the main memory of a low-end server.
Automatic extraction of titles from general documents using machine learning
Authors: Yunhua Hu, Hang Li, Yunbo Cao, Li Teng, Dmitriy Meyerzon, Qinghua Zheng
Venue: Information Processing and Management: an International Journal (2006)

In this paper, we propose a machine learning approach to title extraction from general documents. By general documents, we mean documents that can belong to any one of a number of specific genres, including presentations, book chapters, technical papers, brochures, reports, and letters. Previously, methods have been proposed mainly for title extraction from research papers. It has not been clear whether it could be possible to conduct automatic title extraction from general documents. As a case study, we consider extraction from Office including Word and PowerPoint. In our approach, we annotate titles in sample documents (for Word and PowerPoint, respectively) and take them as training data, train machine learning models, and perform title extraction using the trained models. Our method is unique in that we mainly utilize formatting information such as font size as features in the models. It turns out that the use of formatting information can lead to quite accurate extraction from general documents. Precision and recall for title extraction from Word are 0.810 and 0.837, respectively, and precision and recall for title extraction from PowerPoint are 0.875 and 0.895, respectively in an experiment on intranet data. Other important new findings in this work include that we can train models in one domain and apply them to other domains, and more surprisingly we can even train models in one language and apply them to other languages. Moreover, we can significantly improve search ranking results in document retrieval by using the extracted titles.
Effects of different caps on model nanotube surface properties
Authors: Peter Politzer, Pat Lane, Monica C. Concha, Jane S. Murray
Venue: Microelectronic Engineering (2005)

Earlier work has shown that the most negative electrostatic potentials and the lowest local ionization energies on the surfaces of closed model nanotubes are on the outside of their caps. Conversely, the most positive electrostatic potentials and highest local ionization energies are on the insides. These regions should accordingly display enhanced reactivity, in both noncovalent and covalent interactions, the latter especially toward electrophiles on the outside and nucleophiles inside. We have now investigated in detail, for caps of three different structures, how these properties vary from one to another. Several types and compositions of tubes were considered: (5,5) and (6,0) carbon, (5,5) and (6,0) B"xN"x, and (6,0) C"2"xB"xN"x. We found that the structural features of the cap can have quite a significant effect upon the surface potential and local ionization energies; this is most pronounced for the carbon systems. An interesting observation was the remarkable change in the electrostatic potential of (6,0) C"5"2B"2"6N"2"6 when a boron atom on one cap and a nitrogen on the other were replaced by carbons, giving stoichiometries of C"6B"4 and C"6N"4 at the tips. This produced a strong potential gradient along the entire length of the tube, from positive at one end to negative at the other.
The Design and Implementation of Enterprise Strategy Outsourcing Decision-Making System Based on UML
Authors: F. Wu, C. Liu, P. P. Li, P. Zhao
Venue: Proceedings of the 2006 IEEE Asia-Pacific Conference on Services Computing (2006)

Under the environment of agile and decentralized manufacturing, manufacturing enterprises are increasingly outsourcing their business. From the perspective of protection and acquirement of manufacturing specification, companies' strategic outsourcing decision-making is been focused on. The requirement analysis derived from strategy outsourcing decision is conducted. The system of outsourcing decision is analyzed and designed by UML. Requirement model, objects model and system structure are developed.
The Medial Scaffold of 3D Unorganized Point Clouds
Authors: Frederic F. Leymarie, Benjamin B. Kimia
Venue: IEEE Transactions on Pattern Analysis and Machine Intelligence (2007)

We introduce the notion of the medial scaffold, a hierarchical organization of the medial axis of a 3D shape in the form of a graph constructed from special medial curves connecting special medial points. A key advantage of the scaffold is that it captures the qualitative aspects of shape in a hierarchical and tightly condensed representation. We propose an efficient and exact method for computing the medial scaffold based on a notion of propagation along the scaffold itself, starting from initial sources of the flow and constructing the scaffold during the propagation. We examine this method specifically in the context of an unorganized cloud of points in 3D, e.g., as obtained from laser range finders, which typically involve hundreds of thousands of points, but the ideas are generalizable to data arising from geometrically described surface patches. The computational bottleneck in the propagation-based scheme is in finding the initial sources of the flow. We thus present several ideas to avoid the unnecessary consideration of pairs of points which cannot possibly form a medial point source, such as the "visibility” of a point from another given a third point and the interaction of clusters of points. An application of using the medial scaffold for the representation of point samplings of real-life objects is also illustrated.
Cost Benefit Study of Sparse-PartialWavelength Conversion Architectures
Authors: Andre Soares, Jose Maranhao, William Giozza, Paulo Cunha
Venue: Proceedings of the International Conference on Systems and Networks Communication (2006)

In this paper, we propose a new wavelength converter placement scheme called Adaptive First Load Priority, useful for designing and planning of optical networks with sparse-partial wavelength conversion architecture. The adaptive FLP is an extension of the FLP (First Load Priority) placement scheme proposed by authors in a previous work [13]. Initially, we provide a performance evaluation of FLP. Comparing to others wavelength converter placement schemes proposed in the literature like XC scheme [5], our results show that FLP achieves the best performance at all scenarios studied, very close to that one achieved with a full-complete wavelength conversion architecture. However, we could observe that, after a certain threshold, just adding moreWavelength Converter Routers (WCR) with the FLP scheme may not have enough improvement in network performance that justifies a higherWCR cost. The Adaptive First Load Priority scheme was conceived in order to minimize the amount of WCRs used by FLP scheme, improving its cost benefit. A cost-benefit (ratio gain) study showing a superior performance of Adaptive FLP scheme is presented.
Changing conceptual ecologies with task-structured science curricula
Authors: David E. Kanter, Bruce Sherin, Victor Lee
Venue: Proceedings of the 7th international conference on Learning sciences (2006)

There is currently a great deal of interest in science curricula in which student learning is organized around a single overarching task. One claim is that this approach can lead to a better understanding of scientific content, where content is understood in its original, narrow sense. As researchers, we would like to know if these claims about student content learning actually hold. Ideally, we would be able to map out students' changing conceptual ecologies. However, such work is theoretically and methodologically difficult. To make this task feasible, we focus on the recurrent functional patterns of knowledge, which we refer to as modes. Using "mode-sensitive" clinical interviews with middle school students working with the "I, Bio" curriculum, we demonstrate how analysis at the level of modes can capture the landscape of a conceptual ecology, and provide a language for describing the broad sweep of conceptual changes that result from task-structured instruction.
Lessons Learned from an eXtremely Distributed Project
Authors: Ben Hogan
Venue: Proceedings of the conference on AGILE 2006 (2006)

Distributed development projects are highly complex and introduce new challenges for organizations in areas such as communication, collaboration and knowledge transfer. On a recent 30-person, mixed skill team distributed across Australia, India and the UK we attempted to overcome these challenges using a number of techniques such as daily stand-ups, exchanging ambassadors, small autonomous teams and a dedicated build team. We also used a number of tools such as instant messaging to assist with distributed communication. This experience report describes each tool and technique we used and the lessons learned in their application.
A hybrid parallel projection approach to object-based image restoration
Authors: Xin Fan, Hua Huang, Dequn Liang, Chun Qi
Venue: Pattern Recognition Letters (2006)

Approaches analyzing local characteristics of an image prevail in image restoration. However, they are less effective in cases of restoring images degraded by large size point spread functions (PSFs) and heavy noise. The recently proposed learning based approaches perform well on recovering details from images degraded by large size PSFs, yet involves complicated implementation process and high computational expense. In this paper, we propose a hybrid approach to object-based image restoration. This method incorporates common characteristics of images from a class of objects into image restoration. These characteristics are represented as deterministic sets built on principal component analysis (PCA) models. The sets are combined with the observation model represented via a Bayesian approach to constrain the solution. A parallel projection algorithm is also proposed to find the solution that satisfies all constraints. Experiments performed on frontal face images using the proposed approach show superior performance over those based on local analysis in the cases involving large size PSF and heavy noise degradation. Compared with learning based approaches, the proposed approach can be implemented with ease and the solution can be found with less complexity.
The AML Approach to Modeling Autonomic Systems
Authors: Radovan Cervenka, Dominic Greenwood, Ivan Trencansky
Venue: Proceedings of the International Conference on Autonomic and Autonomous Systems (2006)

Autonomic systems are typically distributed, complex and concurrent systems, comprised of multiple interacting autonomic elements that often exhibit emergent behavior. Design and development of such systems is a non-trivial task that by definition requires specific software engineering approaches, including the use of specialized modeling techniques. This paper takes the well-known Prospecting Asteroids Mission from NASA, an autonomous and autonomic system for future exploration of asteroid fields, which can be considered as a axiomatic example of how autonomic principles can be applied in real terms. Introducing the Agent Modeling Language (AML), we demonstrate using a series of didactic examples how AML can be applied to efficiently, accurately and comprehensively model the PAM system. A selection of AML models specifying the PAM domain, goals, architecture, and behaviors are presented which help demonstrate the utility of AML when modeling autonomous and autonomic systems.
A Self-Referred Clock Jitter Measurement Circuit in Wide Frequency Range
Authors: Chung-Yi Li, Chia-Yuan Chou, Tsin-Yuan Chang
Venue: Proceedings of the 15th Asian Test Symposium (2006)

The abstract is to be in fully-justified italicized text, at the top of the left-hand column as it is here, below the author information. Use the word "Abstract" as the title, in 12-point Times, boldface type, centered relative to the column, initially capitalized. The abstract is to be in 10-point, single-spaced type, and up to 150 words in length. Leave two blank lines after the abstract, then begin the main text.
Efficient database facilities for content-based Flash retrieval
Authors: Bo Feng, Qing Li, Jun Yang
Venue: Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 1 (2003)

Flash /spl trade/ is experiencing a breathtaking growth and has become one of the prevailing media formats on the Web. Unfortunately, little research effort has been dedicated to the retrieval of Flash movies by content, which is critical to the utilization of the enormous Flash resource. Unlike text or image, a Flash movie contains a number of components in different types such as objects, events and interactions, with the number ranging from tens to hundreds. How to index and store these components effectively and efficiently in a database is a big challenge. In this paper, we propose a novel star schema for database design and associated facilities, based on the movie's characteristics at object, event and interaction levels. Experiment results are given to show that our approach can retrieve more relevant movies, efficiently use the storage space and speed up the retrieval process.
Fast Accurate Normal Calculation for Heightfield Lighting on a Non-Isometric Grid
Authors: Huanxi Zhao
Venue: Proceedings of the International Conference on Computer Graphics, Imaging and Visualisation (2006)

Heightfields are two-dimensional arrays of height values, commonly used to store terrain or water surface data, and are also commonly used for calculating bump maps. It is necessary to calculate normal vectors for heightfield when shading it. A traditional way to obtain a vertex normal is to compute it as a weighted sum of the normals of facets sharing that vertex. In this paper, instead of the classical approach and based on finite difference formulae, we give a fast and more accurate normal calculation scheme for heightfield over a non-isometric grid. Numerical and experimental results that support the theoretical analysis are given.
Modeling Workflow Systems with Genetic Planner and Scheduler
Authors: Fabiano S. R. Alves, Kairon F. Guimaraes, Marcia A. Fernandes
Venue: Proceedings of the 18th IEEE International Conference on Tools with Artificial Intelligence (2006)

Workflow Systems have been widely employed by organizations in general; however, the generation of process mo-dels is still an area to be explored. Some works are concentrated in the use of Planning techniques to solve problems; however, one of the difficulties in applying such techniques in Workflow problems is the size of the search space required for the real world problems. An alternative is the use of Evolutionary Computing techniques, particularly Genetic Algorithms that in general are more suitable for these problems. In this context, we will present an architecture based on the use of a genetic planner in order to allow the automatic generation of process modeling. A simulation environment is also proposed by using scheduling techniques based on the use of genetic algorithms to identify the most suitable process model.
Repacking on demand for hierarchical cellular networks
Authors: Hsien-Ming Tsai, Ai-Chun Pang, Yung-Chun Lin, Yi-Bing Lin
Venue: Wireless Networks (2005)

In mobile telecommunications operation, radio channels are scarce resources and should be carefully assigned. One possibility is to deploy the hierarchical cellular network (HCN). This paper studies a HCN channel assignment scheme called repacking on demand (RoD). RoD was originally proposed for wireless local loop networks. We expend this work to accommodate mobile HCN. A simulation model is proposed to study the performance of HCN with RoD and some previously proposed schemes. Our study quantitatively indicates that RoD may significantly outperform the previous proposed schemes.
A Monotonic Code for Sound Azimuth in Primate Inferior Colliculus
Authors: Jennifer M. Groh, Kristin A. Kelly, Abigail M. Underhill
Venue: Journal of Cognitive Neuroscience (2003)

We investigated the format of the code for sound location in the inferior colliculi of three awake monkeys (Macaca mulatta). We found that roughly half of our sample of 99 neurons was sensitive to the free-field locations of broadband noise presented in the frontal hemisphere. Such neurons nearly always responded monotonically as a function of sound azimuth, with stronger responses for more contralateral sound locations. Few, if any, neurons had circumscribed receptive fields. Spatial sensitivity was broad: the proportion of the total sample of neurons responding to a sound at a given location ranged from 30% for ipsilateral locations to 80% for contralateral locations. These findings suggest that sound azimuth is represented via a population rate code of very broadly responsive neurons in primate inferior colliculi. This representation differs in format from the place code used for encoding the locations of visual and tactile stimuli and poses problems for the eventual convergence of auditory and visual or somatosensory signals. Accordingly, models for converting this representation into a place code are discussed.
Delimited dynamic binding
Authors: Oleg Kiselyov, Chung-chieh Shan, Amr Sabry
Venue: ACM SIGPLAN Notices (2006)

Dynamic binding and delimited control are useful together in many settings, including Web applications, database cursors, and mobile code. We examine this pair of language features to show that the semantics of their interaction is ill-defined yet not expressive enough for these uses.We solve this open and subtle problem. We formalise a typed language DB+DC that combines a calculus DB of dynamic binding and a calculus DC of delimited control. We argue from theoretical and practical points of view that its semantics should be based on delimited dynamic binding: capturing a delimited continuation closes over part of the dynamic environment, rather than all or none of it; reinstating the captured continuation supplements the dynamic environment, rather than replacing or inheriting it. We introduce a type- and reduction-preserving translation from DB + DC to DC, which proves that delimited control macro-expresses dynamic binding. We use this translation to implement DB+DC in Scheme, OCaml, and Haskell.We extend DB + DC with mutable dynamic variables and a facility to obtain not only the latest binding of a dynamic variable but also older bindings. This facility provides for stack inspection and (more generally) folding over the execution context as an inductive data structure.
Implementation of a framework for vulnerability/lethality modeling and simulation
Authors: Kim J. Allen, Craig Black
Venue: Proceedings of the 37th conference on Winter simulation (2005)

The Department of Defense (DoD) has employed Modeling and Simulation (M&S) tools in Vulnerability and Lethality (V/L) assessments of weapon/target systems for many years. A wide variety of simulation tools exist that are used to conduct specific aspects of analyzing weapon systems effectiveness and/or target susceptibility to blast, fragment penetration, hardened target penetration, etc. Previously, a somewhat natural separation of domains existed for these models among surface mobile, ground fixed and airborne target classes. However, it has become evident that many of the methods implemented as part of their respective simulations have applicability across domains. Where applications provide a concrete solution for a particular problem, frameworks are meant to provide a generic solution mechanism for a set of similar or related problems. This simple concept was the key to the implementation of a reusable, extensible architecture known as the Endgame Framework.
Statistical analyses for simulating schedule networks
Authors: Dong-Eun Lee, Jonathan Jingsheng Shi
Venue: Proceedings of the 36th conference on Winter simulation (2004)

This paper introduces the Stochastic Project Scheduling Simulation (SPSS) system and two additional useful statistical analysis tools. SPSS integrates CPM, PERT, and Discrete Event Simulation (DES) scheduling methods into one system. It can generate a CPM-based deterministic schedule, a PERT-based probabilistic schedule, and a simulation-based stochastic schedule for the project under study. Two additional statistical analysis tools are added to assist users in determining the number of simulation runs needed for a given schedule network and testing the significance of difference between two independent simulation experiments.