ppxscal/embedding_network huggingface dataset:
Developing collaborative competencies within supply chains
Authors: Karine Evrard Samuel, Alain Spalanzani
Venue: International Journal of Information Technology and Management (2009)

In a context of ever changing markets, developing more and more agile supply chains have become a necessity for most companies evolving in a global environment. The review of the literature on supply chain collaboration shows that the ability to develop an agile and demand-driven supply chain is directly linked to the various partners interacting in a supply chain and their ability to collaborate. This paper presents a new approach to interenterprise collaboration via the concept of collaborative competencies. Through empirical evidence based on two case studies, we put forth a four-dimensional framework which may help serve to analyse collaboration design and establishment within integrated supply chains.
Teaching the Unknown and the Unknowable in Requirements Engineering Education
Authors: Raymond J. Barnes, Donald C. Gause, Eileen C. Way
Venue: Proceedings of the 2008 Requirements Engineering Education and Training (2008)

A challenge in teaching students about the "realities" of requirements engineering (RE) in systems design involves managing requirements change and uncertainty, with all the associated unknowns and unknowable. This paper aims to inspire a discussion for why knowing the unknown and unknowable of RE is a critical design skill. We describe how we might go about fostering an attitude of acceptance versus resistance and fear of the unknown and unknowable in RE, and help develop an important skill in systems design students. The classroom experiences, successes and challenges are described, and suggestions offered for future work.
Detection of Shadow Mask Defects Using Periodic Hole Placement
Authors: Dong-Min Woo
Venue: Proceedings of the 2009 International Conference on Electronic Computer Technology (2009)

This paper presents an efficient image analysis methodology which can detect the very small hole defects reliably and rapidly from shadow mask. In fact, shadow mask line image data can be adjusted to be periodical with the period of an integer number. The inspection method mainly depends on the fact that a small defect can be significantly emphasized in terms of the comparison between image pixels departed by the period. In this paper, this comparison is implemented as FIR digital filtering algorithm, which can be rapidly processed by DSP chip. In terms of high speed line image sensing and fast algorithm by DSP, the whole inspection scheme sufficiently supports real time shadow mask handing. From the experimental results, this scheme shows a reliable inspection capability for all types of individual hole defects.
What do you see when you're surfing?: using eye tracking to predict salient regions of web pages
Authors: Georg Buscher, Edward Cutrell, Meredith Ringel Morris
Venue: Proceedings of the 27th international conference on Human factors in computing systems (2009)

An understanding of how people allocate their visual attention when viewing Web pages is very important for Web authors, interface designers, advertisers and others. Such knowledge opens the door to a variety of innovations, ranging from improved Web page design to the creation of compact, yet recognizable, visual representations of long pages. We present an eye-tracking study in which 20 users viewed 361 Web pages while engaged in information foraging and page recognition tasks. From this data, we describe general location-based characteristics of visual attention for Web pages dependent on different tasks and demographics, and generate a model for predicting the visual attention that individual page elements may receive. Finally, we introduce the concept of fixation impact, a new method for mapping gaze data to visual scenes that is motivated by findings in vision research.
Method of 5-axis Spline Interpolation and Realization in CNC System
Authors: Liangji Chen
Venue: Proceedings of the 2009 International Asia Conference on Informatics in Control, Automation and Robotics (2009)

An interpolation method using Non-Uniform Rational B-Spline (NURBS) technology in the CAD field is proposed and realized in a 5-axis Computer Numerically Controlled (CNC) system. In this method, the tool path is represented to two NURBS curves, tool-tip and tool-orientation spline curve, based on the same knot vector. CL data is firstly calculated and then transformed to five motion commands of 5 axes of machine through the real-time post-procession algorithm. The acceleration/deceleration controlling method is also presented to avoid the impact of machine. The proposed 5-axis spline interpolation method is realized in our developing 5-axis machine tool and the result of machining shows that the method is feasible.
Remote monitoring and diagnosis of a mechatronic system
Authors: Ionut Resceanu, Marius Niculescu, Nicu George Bizdoaca, Cristina Pana
Venue: Proceedings of the 8th conference on Applied informatics and communications (2008)

The real time evolution of a system is analyzed and the differences between the mathematical models describing the system are providing a feedback indicating a possible fault in the monitored process. All the monitoring activity was done remotely via word wide web using Data Socket Server technology for transmitting and receiving data through the network. The measurement and control are accomplished and integrated by using a computerized data acquisition system and a comprehensive virtual instrument, developed using the LabVIEW application software. In addition, this system allows for easy modification and enhancement of virtual (software) instrument by modification of the software program.
SAR image localization research based on the azimuth circle adjustment
Authors: Guang Yang, Dejun Li, Xiaojuan Wang, Bai Zhang
Venue: Proceedings of the 3rd WSEAS international conference on Computer engineering and applications (2009)

According to the work mechanism of space synthetic aperture radar (SAR), this text introduced the localization algorithms of SAR image and the method of system error adjustment. On the basis of the concept of the azimuth circle and the combination of the north direction coordinate system of geography, carries on the adjustment to the localization data, so increased the SAR image localization accuracy at large scale, combines the simulated data and the image of Radarsat satellite, validate the localization algorithm and the adjustment method. The results had indicated that this algorithm might enable the localization accuracy of Radarsat image to achieve 400-600m, if the establishment of earth model might more accurate, the ground station could provide the more precise orbital data, the localization accuracy may further enhance.
Colour and Multispectral Morphological Processing
Authors: Jean Serra
Venue: Proceedings of the 2009 Seventh International Conference on Advances in Pattern Recognition (2009)

The classical colour polar-based representations (HLS, HSV, etc.) lead to brightness and saturation with non consistent properties. The requirements for a correct quantitative colour polar representation are recalled. They lead to using norms, and in particular the L1 norm. Colour images are multivariable functions, and for segmenting them one must go through reducing step. It is classically obtained by calculating a gradient module,which is then segmented as a gray tone image. An alternative solution is proposed in the paper. It is based on separated segmentations, followed by final merging into a unique partition. The generalization of the top-hat transformation for extracting colour details is also considered. These new marginal colour operators take advantage of an adaptive combination of the chromatic and the achromatic (or the spectral and the spatio-geometric) colour components. Examples in feature extraction from geographical maps are given.
Parametric Study Using an Integrated Design System to Assess Fatigue Durability of Control Arms in Automobile Suspension Module
Authors: Seungho Han, Jaikyung Lee, Taehee Lee, Kwangsub Jang
Venue: Computer Supported Cooperative Work in Design IV: 11th International Conference, CSCWD 2007, Melbourne, Australia, April 26-28, 2007. Revised Selected Papers (2008)

The Finite Element (FE) modeling support system enables easy and fast FE modeling to be conducted for static and durability analysis in the design of automobile suspension modules. It takes into account the entire design process verifying the index of fatigue durability, which is used to satisfy design criteria. To perform process automation and integrate the FE modeling support system, an integrated design system is implemented based on the JADE (Java Agent DEvelopment) platform to meet the standard specifications of FIPA (Foundation for Intelligent Physical Agent) and has various types of agents. As a case study, the design of the control arms in an automobile suspension module, several main independent parameters, i.e. width, height, fillet radius and thickness, are changed via PSG (Parametric Set Generator) for automatic generation of a parametric model, and the index of fatigue durability is investigated due to subsequent changes of these parameters. In comparison with a conventional fatigue durability analysis, this integrated design system brings a reduction of man-hours of as much as 27%.
Instant multi-tier web applications without tears
Authors: Gautam Shroff, Puneet Agarwal, Premkumar Devanbu
Venue: Proceedings of the 2nd India software engineering conference (2009)

We describe how development productivity for multi-tier web-based database 'forms' oriented applications can be significantly improved using 'InstantApps', an interpretive framework that uses efficient runtime model interpretation and features an integrated 'wysiwig' 'point-and click' design editor for developing forms, database schema, control flow, and functional logic. As compared to related academic as well as commercial work, our approach has the distinct advantage of retaining an industry standard architecture that yields high performance and enables model driven functionality to be augmented with hand-written extensions using a well known architectural style and leveraging standard skill sets. In particular, the interface's 'look and feel' can be completely custom built even as the application functionality is developed using the instant 'WYSIWYG' editor. Efficient implementation of interpretation and reflection ensures that performance does not suffer, and performance benchmarks support this. Significant productivity benefits are demonstrated with case-studies of real-life applications developed and deployed on this platform, including actual costs vs. estimates using industry-standard function-point based measures. Finally, we describe some interesting features of the platform, including multi-tenancy and weak meta-circularity, and how these are being exploited successfully in practice.
Data warehouse access using multi-agent system
Authors: Nader Kolsi, Abdelaziz Abdellatif, Khaled Ghedira
Venue: Distributed and Parallel Databases (2009)

The new approach that we will propose, in this paper deals with the dynamic data distribution of the data warehouse (DWH) on a set of servers. This distribution is different from the "classical" one which depends on how data is used. It consists in distributing data when the machine reaches its storage limit capacity. The proposed approach insures the scalability and exploits the storage and processing resources available in the organization using the DWH. It is worth noting that our approach is based on a multi-agent model mixed with the scalability distribution proposed by the Scalable Distributed Data Structures.Our multi-agent model is made up of stationary agent classes: Client, Dispatcher, Domain and Server, and a mobile agent class: Messenger. These agents collaborate and achieve automatically the storage, splitting, redirection and access operations on the distributed DWH.In this paper, we focus on the global dynamic for the data access operation and we present the inherent experimental results.
A new approach for determining the length of intervals for fuzzy time series
Authors: Ufuk Yolcu, Erol Egrioglu, Vedide R. Uslu, Murat A. Basaran, Cagdas H. Aladag
Venue: Applied Soft Computing (2009)

In the implementations of fuzzy time series forecasting, the identification of interval lengths has an important impact on the performance of the procedure. However, the interval length has been chosen arbitrarily in many papers. Huarng developed a new approach which is called ratio-based lengths of intervals in order to identify the length of intervals. In our paper, we propose a new approach which uses a single-variable constrained optimization to determine the ratio for the length of intervals. The proposed approach is applied to the two well-known time series, which are enrollment data at The University of Alabama and inventory demand data. The obtained results are compared to those of other methods. The proposed method produces more accurate predictions for the future values of used time series.
Conversation clusters: grouping conversation topics through human-computer dialog
Authors: Tony Bergstrom, Karrie Karahalios
Venue: Proceedings of the 27th international conference on Human factors in computing systems (2009)

Conversation Clusters explores the use of visualization to highlight salient moments of live conversation while archiving a meeting. Cheaper storage and easy access to recording devices allows extensive archival. However, as the size of the archive grows, retrieving the desired moments becomes increasingly difficult. We approach this problem from a socio-technical perspective and utilize human intuition aided by computer memory. We present computationally detected topics of conversation as visual summaries of discussion and as reference points into the archive. To further bootstrap the system, humans can participate in a dialog with the visualization of the clustering process and shape the development of clustering models.
Personalization for Location-Based E-Learning
Authors: Rui Zhou, Klaus Rechert
Venue: Proceedings of the 2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies (2008)

Personalization has proven to be of significant value to educational systems, which provide learning contents tailored to the knowledge, interests and other characteristics of the learners. Location-based E-Learning raises new opportunities and challenges in this field, as learning activities become mobile and location-aware. Integration of personalization and location-awareness even context-awareness will greatly improve the effectiveness of E-Learning. In this paper, we introduce the process of personalization for location-based E-Learning, discuss the personalization techniques regarding learning context modeling, content organization and selection, recommendations and ranking as well as personalized multimedia presentation. A prototypical application is presented at the end of the paper.
TwinDrivers: semi-automatic derivation of fast and safe hypervisor network drivers from guest OS drivers
Authors: Aravind Menon, Simon Schubert, Willy Zwaenepoel
Venue: Proceeding of the 14th international conference on Architectural support for programming languages and operating systems (2009)

In a virtualized environment, device drivers are often run inside a virtual machine (VM) rather than in the hypervisor, for reasons of safety and reduction in software engineering effort. Unfortunately, this approach results in poor performance for I/O-intensive devices such as network cards. The alternative approach of running device drivers directly in the hypervisor yields better performance, but results in the loss of safety guarantees for the hypervisor and incurs additional software engineering costs. In this paper we present TwinDrivers, a framework which allows us to semi-automatically create safe and efficient hypervisor drivers from guest OS drivers. The hypervisor driver runs directly in the hypervisor, but its data resides completely in the driver VM address space. A Software Virtual Memory mechanism allows the driver to access its VM data efficiently from the hypervisor running in any guest context, and also protects the hypervisor from invalid memory accesses from the driver. An upcall mechanism allows the hypervisor to largely reuse the driver support infrastructure present in the VM. The TwinDriver system thus combines most of the performance benefits of hypervisor-based driver approaches with the safety and software engineering benefits of VM-based driver approaches. Using the TwinDrivers hypervisor driver, we are able to improve the guest domain networking throughput in Xen by a factor of 2.4 for transmit workloads, and 2.1 for receive workloads, both in CPU-scaled units, and achieve close to 64-67 of native Linux throughput.
Note: On the number of connected convex subgraphs of a connected acyclic digraph
Authors: Gregory Gutin, Anders Yeo
Venue: Discrete Applied Mathematics (2009)

A digraph D is connected if the underlying undirected graph of D is connected. A subgraph H of an acyclic digraph D is convex if there is no directed path between vertices of H which contains an arc not in H. We find the minimum and maximum possible number of connected convex subgraphs in a connected acyclic digraph of order n. Connected convex subgraphs of connected acyclic digraphs are of interest in the area of modern embedded processors technology.
Eye tracking in practice
Authors: J. A. Renshaw, N. Webb
Venue: Proceedings of the 21st British HCI Group Annual Conference on HCI 2008: People and Computers XXI: HCI...but not as we know it - Volume 2 (2007)

This paper describes the practical side of eye tracker use in the field of human computer interaction. The paper relates to usability evaluations in practice covering those topics of primary importance to practitioners including the business case for eye tracking and the technique's benefits and limitations. The authors describe techniques, based on practical experience, to be deployed to ensure success with eye tracking and provide some useful links and references for those contemplating adoption of the technique. Ideas on future practical areas of deployment are discuss.
Learning and practising supply chain management strategies from a business simulation game: a comprehensive supply chain simulation
Authors: Li Zhou, Ying Xie, Nigel Wild, Charles Hunt
Venue: Proceedings of the 40th Conference on Winter Simulation (2008)

An Internet based supply chain simulation game (ISCS) is introduced and demonstrated in this paper. Different from other games and extended from the Beer Game, a comprehensive set of supply chain (SC) management strategies can be tested in the game, and these strategies can be evaluated and appraised based on the built-in Management Information System (MIS). The key functionalities of ISCS are designed to increase players' SC awareness, facilitate understanding on various SC strategies and challenges, foster collaboration between partners, and improve problem solving skills. It is concluded that an ISCS can be used as an efficient and effective teaching tool as well as a research tool in operations research and management science. Problems and obstacles have been observed while engaging in the SC business scenario game. The actions proposed and implemented to solve these problems have resulted in improved SC performance.
Metadata Retrieval Using RTCP for Multimedia Streaming
Authors: Seung-Woo Kum, Tae Beom Lim, Seok Pil Lee
Venue: Proceedings of the 9th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing (2008)

Media streaming has now become very popular in the Internet, and metadata plays a significant role for media applications. Recently, with the growth of the multimedia service in IP network, RTSP and RTP has become a de-facto standard for streaming. However, these protocols do not include metadata transmission in itself. Instead, metadata delivery in IP network is done with other various protocols such as HTTP or SOAP over HTTP. Also file delivery protocol such as FLUTE is used. But using different protocol from media streaming may induce protocol issues such as TCP-friendliness problem. In this paper, we propose an efficient way of metadata retrieval using RTCP. It uses identical protocol for streaming and metadata retrieval. Embedding metadata into RTCP Report also makes it easy to control the metadata transmission. Protocol extensions of SDP and RTSP for metadata subscription are also presented.
Tagsplanations: explaining recommendations using tags
Authors: Jesse Vig, Shilad Sen, John Riedl
Venue: Proceedings of the 13th international conference on Intelligent user interfaces (2009)

While recommender systems tell users what items they might like, explanations of recommendations reveal why they might like them. Explanations provide many benefits, from improving user satisfaction to helping users make better decisions. This paper introduces tagsplanations, which are explanations based on community tags. Tagsplanations have two key components: tag relevance, the degree to which a tag describes an item, and tag preference, the user's sentiment toward a tag. We develop novel algorithms for estimating tag relevance and tag preference, and we conduct a user study exploring the roles of tag relevance and tag preference in promoting effective tagsplanations. We also examine which types of tags are most useful for tagsplanations.
Efficient analytical determination of the SEU-induced pulse shape
Authors: Rajesh Garg, Sunil P. Khatri
Venue: Proceedings of the 2009 Asia and South Pacific Design Automation Conference (2009)

Single event upsets (SEUs) have become problematic for both combinational and sequential circuits in the deep sub-micron era due to device scaling, lowered supply voltages and higher operating frequencies. To design radiation tolerant circuits efficiently, techniques are required to analyze the effects of a radiation particle strike on a circuit early in the design flow, and hence evaluate the circuit's resilience to SEU events. For an accurate estimation of the SEU tolerance of a circuit, it is important to consider the effects of electrical masking. This is typically done by performing circuit simulations, which are slow. In this paper, we present an analytical model for the determination of the shape of radiation-induced voltage glitches in combinational circuits. The output of our approach can be propagated to the primary outputs of the circuit using existing tools, thereby modeling the effects of electrical masking. This enables an accurate and quick evaluation of the SEU robustness of a circuit. Experimental results demonstrate that our model is very accurate, with a very low root mean square percentage error in the estimation of the shape of the voltage glitch of (4.5%) compared to SPICE. Our model gains its accuracy by using a non-linear model for the load current of the gate, and by considering the effect of &tau; &beta; on the radiation induced voltage glitch. Our analytical model is very fast (275x faster than SPICE) and accurate, and can therefore be easily incorporated in a design flow to estimate the SEU tolerance of circuits early in the design process.
All Farthest Neighbors in the Presence of Highways and Obstacles
Authors: Sang Won Bae, Matias Korman, Takeshi Tokuyama
Venue: Proceedings of the 3rd International Workshop on Algorithms and Computation (2009)

We consider the problem of computing all farthest neighbors (and the diameter) of a given set of n points in the presence of highways and obstacles in the plane. When traveling on the plane, travelers may use highways for faster movement and must avoid all obstacles. We present an efficient solution to this problem based on knowledge from earlier research on shortest path computation. Our algorithms run in $\ensuremath{O(nm(\log m + \log^2n))}$ time using O(m + n) space, where the m is the combinatorial complexity of the environment consisting of highways and obstacles.