ppxscal/embedding_network huggingface dataset:
Ensuring the production facility achieves its required capacity and exceeds it
Authors: Joseph Weiss
Venue: Proceedings of the 36th conference on Winter simulation (2004)

A biotech facility was originally designed without simulation. The use of simulation to confirm the design identified that the plant would be unable to meet the desired production requirements. By modeling and evaluating multiple scenarios, the most costeffective solution was identified that enabled the facility to achieve its production goals. In order to ensure an effective solution for the entire facility, all processes, support systems, and critical utilities were modeled and evaluated. When production forecasts showed a significantly increased demand, the simulation model was revisited. The production of the facility was increased 50% with only a 7% increase in capital cost using constraint sequence evaluation.
Maintaining Aggregate Views over Streams
Authors: Jiakui Zhao, Dongqing Yang, Lijun Chen, Jun Gao, Tengjiao Wang
Venue: Proceedings of the Seventh International Conference on Web-Age Information Management Workshops (2006)

Sliding-window aggregate queries over streams are an important class of continuous queries for online monitoring applications. In this paper, the evaluation results of sliding-window aggregates are seen as views, and we propose an aggregate framework with a baseline algorithm and an extended self-adaptive algorithm for maintaining sliding-window aggregate views over streams. We propose a taxonomy of aggregates according to dimensions that are particularly important in evaluating different aggregates, and present optimizations in evaluating high overhead aggregates for reducing space and time complexity. Performance study and experimental results show that we have good choices for evaluating different classes of aggregates.
Design of a Learning Support System to Aid Novice Programmers in Obtaining the Capability of Tracing
Authors: Masayuki Arai, Tomomi Yamazaki
Venue: Proceedings of the Sixth IEEE International Conference on Advanced Learning Technologies (2006)

We developed a learning system that supports in obtaining the capability of tracing source programs for novice programmers. The system has the following functions and characteristics: (1) It can display the source program and the flow chart of the program in parallel. (2) It can set similar problems based on basic program patterns semi-automatically. (3) It has a function to display the present and past contents of the variables. (4) We construct the system as a web-based server-client application.
Interplay of ISPs: Distributed Resource Allocation and Revenue Maximization
Authors: Sam C. M. Lee, Joe W. J. Jiang, John C. S. Lui, Dah-Ming Chiu
Venue: Proceedings of the 26th IEEE International Conference on Distributed Computing Systems (2006)

The Internet is a hierarchical architecture comprising heterogeneous entities of privately owned infrastructures, where higher level Internet service providers (ISPs) supply connectivity to the local ISPs and charge the local ISPs for the transit services. One of the challenging problems facing service providers today is how to increase the profitability while maintaining good service qualities. In this work, we seek to understand the fundamental issues on the "interplay" (or interaction) between ISPs at different tiers. While the local ISPs (which we term peers) can communicate with each other by purchasing the connectivity from transit ISPs, there stands an opportunity for them to set up private peering relationships. Under this competitive framework, we explore the issues on (a) impact of peering relationship, (b) resource distribution and (c) revenue maximization. Firstly, a generalized model is presented to characterize the behaviors of peers and the transit ISP, in which their economic interests are reflected. We study how a peer can distributively determine its optimal peering strategy. Furthermore, we show how a transit ISP is able to utilize the available information to infer its optimal pricing strategy, under which a revenue maximization is achieved. A distributed algorithm is proposed to help ISPs to provide a fair and efficient bandwidth allocation to peers, avoiding a resource monopolization of the market. Extensive simulations are carried out to support our claims.
Evaluation of database management systems for Erlang
Authors: Emil Hellman
Venue: Proceedings of the 2006 ACM SIGPLAN workshop on Erlang (2006)

Erlang/OTP's DBMS Mnesia is lacking in several important areas to consider when implementing very large databases with massive scalability requirements. This article reveals the result from a study examining what Erlang developers consider important aspects of DBMSs and an analytical hierarchy process (AHP) evaluation on four mature open source DBMSs based on those criteria. AHP is suggested as good method to evaluate DBMSs for Erlang projects. The criteria used in this evaluation were derived from a survey sent to the Erlang community. It should therefore be noted that which DBMS to use in Erlang projects should also be determined by the project's and the software's own specific criteria.
Collaborative learning with animated pictures: the role of verbalizations
Authors: Mirweis Sangin, Gaëlle Molinari, Pierre Dillenbourg, Cyril Rebetez, Mireille Bétrancourt
Venue: Proceedings of the 7th international conference on Learning sciences (2006)

The present study examines the benefits of instructional animations in a collaborative learning situation. We investigated the interactions that occur during collaborative learning from different materials: animated versus static pictures, both with or without persistency of information. The animation factor had no effect on the types of interactions but the persistency of information led to fewer content-focused interactions. We also analyzed the impact of these interactions on learning performances: Two types of interactions (content-focused and social relations and coordination management) mediate some of the effects of the permanence factor on learning performances.
Laguerre digital filter design
Authors: M. A. Masnadi-Shirazi, M. Ghasemi
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1995. on International Conference - Volume 02 (1995)

Using Laguerre networks in the discrete-time (DT) domain has already been addressed by Masnadi-Shirazi and Ahmed (1991). The main contribution of the present paper is to use the Laguerre networks in the frequency domain, and to design digital filters based on the specified frequency response. This filter design yields an appropriate linear phase, with lower ripples in the stopband and passband compared to conventional FIR filters. Both analytical and numerical approaches for Laguerre digital filter design are introduced in detail and the results are shown through some examples. The procedure is based on minimizing the mean-square-error (MSE) between the frequency response of the desired filter and its corresponding Laguerre network frequency response.
Partially Distributed Representations of Objects and Faces in Ventral Temporal Cortex
Authors: Alice J. O'toole, Fang Jiang, Hervé Abdi, James V. Haxby
Venue: Journal of Cognitive Neuroscience (2005)

Object and face representations in ventral temporal (VT) cortex were investigated by combining object confusability data from a computational model of object classification with neural response confusability data from a functional neuroimaging experiment. A pattern-based classification algorithm learned to categorize individual brain maps according to the object category being viewed by the subject. An identical algorithm learned to classify an image-based, view-dependent represen- tation of the stimuli. High correlations were found between the confusability of object categories and the confusability of brain activity maps. This occurred even with the inclusion of multiple views of objects, and when the object classification model was tested with high spatial frequency "line drawings" of the stimuli. Consistent with a distributed representation of objects in VT cortex, the data indicate that object categories with shared image-based attributes have shared neural structure.
Arab Internet Investments in "Mid-Boom"
Authors: Greg Goth
Venue: IEEE Internet Computing (2006)

Although only about 4 percent of the Middle East's population has Internet access and press reports decry political repression and a lack of local content, regional industry analysts say investors, vendors, and service providers are solidifying their positions in anticipation of a breakout situation for access created by new technologies.
Identifying splice-junction sequences by hierarchical multiclassifier
Authors: Alessandra Lumini, Loris Nanni
Venue: Pattern Recognition Letters (2006)

Splice sites are locations in DNA which separate protein-coding regions (exons) from noncoding regions (introns). Recently, several works have approached the splice-junction problem by applying methods from the field of machine learning techniques. In this work, we propose a hierarchical multiclassifier (HM) architecture, whose results show a drastically error reduction with respect to the performance of methods proposed in the literature.
An introduction to object-oriented programming with a didactic microworld: objectKarel
Authors: Stelios Xinogalos, Maya Satratzemi, Vassilios Dagdilelis
Venue: Computers Education (2006)

The objects-first strategy to teaching programming has prevailed over the imperative-first and functional-first strategies during the last decade. However, the objects-first strategy has created added difficulties to both the teaching and learning of programming. In an attempt to confront these difficulties and support the objects-first strategy we developed a novel programming environment, objectKarel, which uses the language Karel++. The design of objectKarel was based on the results of the extended research that has been carried out about novice programmers. What differentiates it from analogous environments is the fact that it combines features that have been used solely in them: incorporated e-lessons and hands-on activities; an easy to use structure editor for developing/editing programs; program animation; explanatory visualization; highly informative and friendly error messages; recordability. In this paper, we present the didactic rationale that dictated the design of objectKarel and the features of the environment, including the e-lessons. In addition, we present the results from the use of objectKarel in the classroom and the results of the students' assessment of the environment.
Survey and Analysis on Security Control Schema in Information Assurance Criteria
Authors: Sung-il Han, Kab-seung Kou, Gang-soo Lee
Venue: Proceedings of the 2006 International Conference on Hybrid Information Technology - Volume 02 (2006)

In each organization, there are many concerns for security management by development of Information system. And organization used information assurance system for safe management. Information assurance is a lot of criteria. And we see duplication and inefficiency about various information assurance criteria. Thus, we need survey and analysis on security control schema in information assurance criteria.
Realization of Continuous Queries with kNN Join Processing in Spatial Telemetric Data Warehouse
Authors: Marcin Gorawski, Wojciech Gebczyk
Venue: Proceedings of the 17th International Conference on Database and Expert Systems Applications (2006)

The paper describes realization of continuous queries with kNN join processing in spatial telemetric data warehouse. kNN queries (k Nearest Neighbors) joins every point from dataset with its k nearest neighbors in the other dataset. We use the Gorder method, which is a block nested loop join algorithm that exploits sorting, join scheduling and distance computation filtering. Queries are processed for both static and mobile objects. Designed approach allows to evaluate many simultaneous continuous queries.
Procedural Learning in Broca's Aphasia: Dissociation between the Implicit Acquisition of Spatio-Motor and Phoneme Sequences
Authors: Thomas Goschke, Angela D. Friederici, Sonja A. Kotz, Anja Van Kampen
Venue: Journal of Cognitive Neuroscience (2001)

Procedural learning of spatio-motor and phoneme sequences was investigated in patients with Broca's and Wernicke's aphasia and age-matched controls. In Experiment 1, participants performed a standard serial reaction task (SRT) in which they manually responded to a repeating sequence of stimulus locations. Both Broca's and Wernicke's aphasics showed intact sequence learning, as indicated by a reliable response time (RT) cost when the repeating sequence was switched to a random sequence. In Experiment 2, Broca's aphasics and controls performed a new serial search task (SST), which allowed us to investigate the learning of a spatio-motor sequence and a phoneme sequence independently from each other. On each trial, four letters were presented visually, followed by a single auditorily presented letter. Participants had to press one of four response keys to indicate the location of the auditory letter in the visual display. The arrangement of the visual letters was changed from trial to trial such that either the key-presses or the auditory letters followed a repeating pattern, while the other sequence was random. While controls learned both the key-press and the phoneme sequences, Broca's aphasics were selectively impaired in learning the phoneme sequence. This dissociation between learning of spatio-motor and phoneme sequences supports the assumption that partially separable brain systems are involved in procedural learning of different types of sequential structures.
Collaborative Logistics on the Military Flightline
Authors: Paul Faas, Jason Seyba, Ian Young, Jennie Gallimore, Laurie Quill, Elizabeth Matthews, Ron Cagle
Venue: Proceedings of the International Symposium on Collaborative Technologies and Systems (2006)

This paper discusses field experiments in the Air Force Research Laboratory's ongoing Smart Systems for Logistics Command and Control (SSLC2) research program. Spiral 1 of this program included four field experiments conducted in the spring of 2005 at Air Force Reserve/Air National Guard bases in Indiana and Ohio. This paper describes how the recommendations from Spiral 1 pointed the way to field experiments planned for upcoming spirals-- experiments in the collaborative logistics environment of the maintenance flightline.
Keywords Recognition of Handwritten Character String on Whiteboard Using Word Dictionary for e-Learning
Authors: Daisuke Yoshida, Shinji Tsuruoka, Hiroharu Kawanaka, Tsuyoshi Shinogi
Venue: Proceedings of the 2006 International Conference on Hybrid Information Technology - Volume 01 (2006)

We are developing an individual e-Learning system using two communication cameras and a pen capture tool on whiteboard for university students. In this research, keywords recognition for the written characters by the lecturer on the whiteboard is important for indexing the scene database. We are considering the handwritten keyword recognition. The whiteboard image captured by the pen capture tool is recognized to character strings and the string corresponds to keywords in a textbook to link to the explanation of the keyword in textbook. One of important problems in our learning system is that the accuracy of handwritten character recognition on whiteboard is not enough for keyword recognition. In this paper, we propose the new matching method of high accuracy keyword recognition using word dictionary and the distance of character recognition. We confirmed the usefulness using word dictionary for handwritten keyword recognition on whiteboard.
Synchronization and stochastic resonance of noise-induced jumps in a bistable system
Authors: A. Kovaleva
Venue: Proceedings of the 2003 International Conference on Physics and Control - Volume 2 (2003)

We determine stochastic resonance and locking conditions for noise-induced interwell jumps in a bistable system subject to a weak periodic signal. We demonstrate that the phenomena of stochastic resonance and synchronization are not contradictory and can be interpreted as the limit cases of hopping dynamics. The boundary between the domains of synchronization arid stochastic resonance is determined as a function of system's parameters. An extension to systems affected by coloured noise is discussed. The ACM Portal is published by the Association for Computing Machinery. Copyright © 2010 ACM, Inc. Terms of Usage Privacy Policy Code of Ethics Contact Us Useful downloads: Adobe Acrobat QuickTime Windows Media Player Real Player
Self-tuning caching: the Universal Caching algorithm: Experiences with Auto-adaptive and Reconfigurable Systems
Authors: Ganesh Santhanakrishnan, Ahmed Amer, Panos K. Chrysanthis
Venue: Software&mdash;Practice Experience (2006)

A cache replacement policy is normally suited to a particular class of applications, or limited to a set of fixed criteria for evaluating the cache-worthiness of an object. We present Universal Caching as a mechanism to capture the generality of the most adaptive algorithms, while depending on a very limited set of basic criteria for cache-replacement decisions. Our testing was limited to Web workloads, where we tested the Universal Caching policy using real-world traces from both the server-side and client-side proxies. Using a self-tuning mechanism, combined with a generalization of the criteria employed in GD-&ast; Web caching, Universal Caching was able to consistently outperform any other fixed choice of algorithm we tested. Copyright &copy; 2006 John Wiley & Sons, Ltd.
Distributed resource allocation in networks for multiple concave objectives
Authors: Ashish Goel
Venue:  (2005)

In this thesis, we address the problem of allocating fixed resources among users in some fair fashion. Although the issue of fairness has been studied in many areas by many people, there are diverse definitions for fairness such as max-min fairness, proportional fairness, minimum variance, and so on. To deal with this complexity, a novel framework called majorization was recently suggested, which simultaneously satisfies a large class of fairness criteria. This is what this thesis studies. We develop practical algorithms which simultaneously achieve multiple fairness objectives. The fairness criteria we consider are the class of "canonical" utility functions which span a very large area of fairness measurement functions. Specifically, what we want to design is a simple distributed algorithm which approximately maximizes all kinds of canonical utility functions simultaneously. For the realization of distributed algorithms, we use primal-dual linear programming approach and concept of agents. We present that the proper interactions between flow agents and edge agents induce a solution which almost maximizes all the canonical utility functions simultaneously. We present distributed algorithms to solve the abovementioned problem through two steps. First, we show how to adapt primal and dual linear programmings to the simultaneous optimization problem. Then, we extend the result to a distributed algorithm which uses only local communication between flow agents and edge agents, i.e., the communication takes place only between a flow agent and edge agents on the path of the flow. We prove that the first algorithm requires at most O(m log m) iterations of a primal-dual update and the latter requires at most O(nR log(m + n + R)) iterations where m is the number of edges, n is the number of flows, and R is the ratio of maximum edge capacity to the minimum edge capacity. The former algorithm guarantees a O (log n + log R)-approximate solution, and the latter algorithm guarantees a O(log m + log n + log R)-approximate solution.
Can the WWW Help to Reduce the Digital Divide? An Example of Cost Effectiveness in Teaching Laboratory Development
Authors: Miguel Gonzalez, Luis Sanz, Joaquin Adiego, Rafael Garcia, Carlos Hermo
Venue: Proceedings of the Fourth IEEE International Workshop on Technology for Education in Developing Countries (2006)

We present herein a Web server, http://labfmc.eis.uva.es, focused on improving the cost effective in Physics teaching laboratory resources. This can be enable student to use expensive laboratory equipment that is not usually accessible to students. The server has a virtual and a real laboratory controlled through the Web.
An Overtime-Tolerance Strategy for Advance Reservation
Authors: Libing Wu, Chanle Wu, Jianqun Cui, Huyin Zhang, Gang Ye
Venue: Proceedings of the Seventh International Conference on Parallel and Distributed Computing, Applications and Technologies (2006)

In advance reservation environment, failure discovery strategy is very important to keep the normal running of whole system. One job's overtime (exceeding its booked time) may lead to a serious of jobs' abnormal termination in co-allocation environment. So there should be some strategies to solve this problem. In this paper, a novel overtimetolerance strategy is introduced. The strategy can tolerate active job exceeding its booking time and redirect transparently later inactive jobs to other resources. The architecture of implementing our strategy is described in this paper too. Simulation shows our overtime-tolerance strategy can decrease the abnormal termination ratio and improve the system throughput.
Microarchitecture of the Godson-2 processor
Authors: Wei-Wu Hu, Fu-Xin Zhang, Zu-Song Li
Venue: Journal of Computer Science and Technology (2005)

The Godson project is the first attempt to design high performance general-purpose microprocessors in China. This paper introduces the microarchitecture of the Godson-2 processor which is a 64-bit, 4-issue, out-of-order execution RISC processor that implements the 64-bit MIPS-like instruction set. The adoption of the aggressive out-of-order execution techniques (such as register mapping, branch prediction, and dynamic scheduling) and cache techniques (such as nonblocking cache, load speculation, dynamic memory disambiguation) helps the Godson-2 processor to achieve high performance even at not so high frequency. The Godson-2 processor has been physically implemented on a 6-metal 0.18µm CMOS technology based on the automatic placing and routing flow with the help of some crafted library cells and macros. The area of the chip is 6,700 micrometers by 6,200 micrometers and the clock cycle at typical corner is 2.3ns.
Navigo--Accessibility Solutions for Cerebral Palsy Affected
Authors: Himanshu Pokhariya, Parag Kulkarni, Vasudhara Kantroo, Tanushree Jindal
Venue: Proceedings of the International Conference on Computational Inteligence for Modelling Control and Automation and International Conference on Intelligent Agents Web Technologies and International Commerce (2006)

This paper presents the architecture of an integrated teachable interface, designed and implemented to provide accessibility solutions to the Cerebral Palsy patient in the virtual and urban space. It enables multimodal interaction between the Palsy user and computers, handhelds and remote controlled appliances for enhanced usability. The idea is to redesign the system by changing the way we interpret the input, to suit the user's needs. The USP of the solution is that it is extremely dynamic, flexible and customizable to the entire range and levels of a complex condition as Cerebral Palsy. It works on the basis of allowing an individual to define simple variable inputs for himself and the system enabling him using the same by various specially designed tools, interfaces and feedback mechanisms.