ppxscal/embedding_network huggingface dataset:
Modeling embodied visual behaviors
Authors: Nathan Sprague, Dana Ballard, Al Robinson
Venue: ACM Transactions on Applied Perception (TAP) (2007)

To make progess in understanding human visuomotor behavior, we will need to understand its basic components at an abstract level. One way to achieve such an understanding would be to create a model of a human that has a sufficient amount of complexity so as to be capable of generating such behaviors. Recent technological advances have been made that allow progress to be made in this direction. Graphics models that simulate extensive human capabilities can be used as platforms from which to develop synthetic models of visuomotor behavior. Currently, such models can capture only a small portion of a full behavioral repertoire, but for the behaviors that they do model, they can describe complete visuomotor subsystems at a useful level of detail. The value in doing so is that the body's elaborate visuomotor structures greatly simplify the specification of the abstract behaviors that guide them. The net result is that, essentially, one is faced with proposing an embodied &ldquo;operating system&rdquo; model for picking the right set of abstract behaviors at each instant. This paper outlines one such model. A centerpiece of the model uses vision to aid the behavior that has the most to gain from taking environmental measurements. Preliminary tests of the model against human performance in realistic VR environments show that main features of the model show up in human behavior.
Performance Analysis in IP over WDM Networks
Authors: Cebrail TASKIN
Venue: Proceedings of the Second International Conference on Internet Monitoring and Protection (2007)

Arising of various bandwidth-hungry Internet applications within the recent few years leaded to a necessity for much more bandwidth and higher communication speeds. Subject of this paper is the performance analysis of IP over WDM Networks that supply faster Internet and network connections that meet increasing demand of bandwidth in parallel to the increasing number of Internet applications and further a comparison of the proposed model against present Internet Networks is included. To accomplish this goal, a model of WDM over SDH over ATM over IP (the hardware of current Internet network) is deployed between Ankara and Istanbul (the two most populous cities of Turkey) and a performance test was run. Subsequently, the ATM and SDH hardware was removed from the circuit and the performance test was executed by connecting IP with WDM directly. As the test results of the two models were compared, it was seen that the new proposed model has yielded better results then the current model. The model proposed in this article (which discards ATM and SDH hardware) not only brings about 40% overall increase in performance, but also eliminates the maintenance and operation cost of these discarded networks on behalf of the Telecom operators.
Sloan Foundation Initiatives at Purdue University: longitudinal results [engineering education]
Authors: E. M. Wadsworth
Venue: Proceedings of the Frontiers in Education Conference,1997. on 27th Annual Conference. Teaching and Learning in an Era of Change. - Volume 01 (1997)

This paper documents longitudinal results of nine Sloan Foundation Initiatives involving 6981 people that were offered at Purdue University from 1991 through 1996 under a grant from the Alfred P. Sloan Foundation. Recruitment initiatives included a videotape effort and personal connection program. Retention efforts involved a peer group project, two undergraduate mentoring programs; one graduate mentoring program and a leadership program. Two additional activities were a graduate seminar series and a classroom climate workshop program. Findings from the graduate school seminar series for 1995 and 1996 showed that knowledge of program topics, on the part of students, expanded after attending sessions. Two years of results in 1995 and 1996 for the classroom climate workshop program indicated that: female engineering and science graduate teaching assistants had a more accurate awareness of gender equity issues than their male counterparts; interactive theatre was an effective medium for gender equity workshops; and treating all students fairly was an important action step that was implemented by participants and had a positive impact on their college classroom climates. 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
VIM: Vision for Interactive Music
Authors: Terence Sim, Dennis Ng, Rajkumar Janakiraman
Venue: Proceedings of the Eighth IEEE Workshop on Applications of Computer Vision (2007)

Traditionally, people were either producers of entertainment media, or else consumers of them. Today's digital entertainment, however, provides for a new dimension: that of interactivity. Instead of passive enjoyment, consumers can now control some elements of the media that were previously solely determined by the producer. This interactivity appears to enhance enjoyment. In this paper, we present a vision-based, interactive music playback system which allows anyone, even untrained musicians, to conduct music. The goal is to allow the user to dynamically influence how music is played back, much like what a real conductor would do. The tempo and volume of the music playback are controlled by the user's movements. In addition, our system projects colorful patterns that respond to the user, making the interaction truly multimedia.
Feature-based Part Retrieval for Interactive 3D Reassembly
Authors: Devi Parikh, Rahul Sukthankar, Tsuhan Chen, Mei Chen
Venue: Proceedings of the Eighth IEEE Workshop on Applications of Computer Vision (2007)

We propose a novel framework for 3D reassembly, the task of assembling a solid object from its broken pieces. The primary challenge in this under-explored problem is to robustly establish compatibility between parts from one object. Feature-based techniques have shown success in domains such as 3D similarity search; unfortunately, the global features typically employed to quantify whole-object similarity are unsuitable for identifying part-level compatibility. Therefore, we propose the use of local features which, in conjunction with robust matching, have become popular for object recognition in 2D images. This paper demonstrates that an analogous framework can be successful for 3D reassembly. Automating part-level compatibility enables the construction of an interactive system for 3D reassembly, where the user can easily assemble a desired object from a large collection of pieces (many of which are irrelevant) by iteratively selecting compatible parts. We evaluate our approach on a simulated database of broken objects and show that it scales well in the presence of noise and extraneous pieces.
Electricity industry restructuring in Australia: underlying principles and experience to date
Authors: Hugh Outhred
Venue: Proceedings of the 40th Annual Hawaii International Conference on System Sciences (2007)

Electricity restructuring is a complex, never-ending process that has engineering, economic, social, commercial, legal and policy dimensions and takes place within a broad societal context. Thus, there are many interdisciplinary challenges for the design, implementation and on-going maintenance of a successful restructuring process. Moreover, it is not possible beforehand to be sure that a particular design will work satisfactorily because the formally designed aspects of a restructured industry are only part of the whole. Therefore, it is most important to approach the design of restructuring in manner that is as robust as possible over both the short and long term. This paper describes the underlying principles used in restructuring the Australian electricity industry and discusses outcomes to date and current challenges.
Token and notational money in electronic commerce
Authors: L. Jean Camp, Marvin Sirbu, J. D. Tygar
Venue: Proceedings of the 1st conference on USENIX Workshop on Electronic Commerce - Volume 1 (1995)

What properties of money are important for electronic commerce? We argue that both transactional and privacy properties distinguish electronic commerce systems. We provide a quick overview of the history of money. We then consider privacy provided by different forms of money, and socially desirable disclosure of information as specified by legal reporting requirements. We classify electronic and traditional commerce systems into two categories: • token systems, which exchange markers representing value • notational systems, where value is stored as notations in a ledger or computer. We analyze different forms of traditional money based on the degree to which they protect the privacy and preserve transactional ACID (atomicity, consistency, isolation, durability) properties. Finally we apply our evaluation criteria to two proposed electronic commerce systems: Digicash, (Chaum, 1985; Chaum, 1992) a token-based system; and NetBill, (Sirbu, 1995) a notational system.
Default Priors for Neural Network Classification
Authors: Herbert K. H. Lee
Venue: Journal of Classification (2007)

Feedforward neural networks are a popular tool for classification, offering a method for fully flexible modeling. This paper looks at the underlying probability model, so as to understand statistically what is going on in order to facilitate an intelligent choice of prior for a fully Bayesian analysis. The parameters turn out to be difficult or impossible to interpret, and yet a coherent prior requires a quantification of this inherent uncertainty. Several approaches are discussed, including flat priors, Jeffreys priors and reference priors.
Sales promotions on the internet
Authors: Manoj Kumar, Anand Rangachari, Anant Jhingran, Rakesh Mohan
Venue: Proceedings of the 3rd conference on USENIX Workshop on Electronic Commerce - Volume 3 (1998)

We describe a sales promotion application for distributing and redeeming coupons on the Internet during online shopping. Various types of sales promotions and coupons, and the methods used to target coupons to select potential buyers are reviewed. Security mechanisms needed to prevent alterations, duplication, and trading of coupons by customers, and fraudulent use of manufacturer's coupons by retailers are identified. An implementation of electronic coupons is described. The impact of coupon trading and duplication, facilitated by the Internet, on the effectiveness of sales promotion campaigns is discussed.
Blind deconvolution of echosounder envelopes
Authors: D. A. Caughey
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1996. on Conference Proceedings., 1996 IEEE International Conference - Volume 06 (1996)

Ocean bottom classification performed using an an installed technology base requires compensation for the existing technology's constraints, including the fact that the digitized signal is the envelope of the convolution of the bottom's impulse response and the source ping. We present a method by which the impulse response coefficients may be estimated given the source signal and the envelope of the received signal. This is accomplished by modelling the Hilbert transform definition of an envelope as a finite-length second-order Volterra kernel, and then performing a constrained optimization on the non-linear filter coefficients.
Performance and security lessons learned from virtualizing the alpha processor
Authors: Paul A. Karger
Venue: ACM SIGARCH Computer Architecture News (2007)

Virtualization has become much more important throughout the computer industry both to improve security and to support multiple workloads on the same hardware with effective isolation between those workloads. The most widely used chip architecture, the Intel and AMD x86 processors, have begun to support virtualization, but the initial implementations show some limitations. This paper examines the virtualization properties of the Alpha architecture with particular emphasis on features that improve performance and security. It shows how the Alpha's features of PALcode, address space numbers, software handling of translation buffer misses, lack of used and modified bits, and secure handling of unpredictable results all contribute to making virtualization of the Alpha particularly easy. The paper then compares the virtual architecture of the Alpha with Intel's and AMD's virtualization approaches for x86. It also comments briefly on Intel's virtualization technology for Itanium, IBM's zSeries and pSeries hypervisors and Sun's UltraSPARC virtualization. It particularly identifies some differences between translation buffers on x86 and translation buffers on VAX and Alpha that can have adverse performance consequences.
Decremental Scattering for Data Transport Between Host and Hypercube Nodes
Authors: Mukesh Sharma, Meghanad D. Wagh
Venue: Proceedings of the 1993 International Conference on Parallel Processing - Volume 02 (1993)

There are many parallel signal processing algorithms that are I/O bound. For such algorithms, fast data and program diStribution is very important. In this paper we study a new strategy for data: distribuUonfiom host to MIMD hypercube nodes. This strategy, based on scatteeng on hypercubes of decremental dimensions, perform much better than other strategies known today. It optimizes both the host and node utilization and also exploits the possible overlap in data sent i o different nodes.
Dynamic classifier combination in hybrid speech recognition systems using utterance-level confidence values
Authors: K. Kirchhoff
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 02 (1999)

A recent development in the hybrid HMM/ANN speech recognition paradigm is the use of several subword classifiers, each of which provides different information about the speech signal. Although the combining methods have obtained promising results, the strategies so far proposed have been relatively simple. In most cases frame-level subword unit probabilities are combined using an unweighted product or sum rule. In this paper, we argue and empirically demonstrate that the classifier combination approach can benefit from a dynamically weighted combination rule, where the weights are derived from higher-than-frame-level confidence values.
Swarm intelligence on the binary constraint satisfaction problem
Authors: L. Schoofs, B. Naudts
Venue: Proceedings of the Evolutionary Computation on 2002. CEC '02. Proceedings of the 2002 Congress - Volume 02 (2002)

We introduce a discrete particle swarm (PS) algorithm for solving binary constraint satisfaction problems (CSPs). It uses information about the conflicts between the variables to compute the velocity of the individual particles. We tune the parameters of the PS algorithm to a quasi-optimal setting and study the behavior of the algorithm under changes to this setting. The PS algorithm is then empirically compared with ant colonies (which also belong to the swarm intelligence class) and genetic algorithms on a whole range of randomly generated binary CSP instances.
Electromechanical and electromagnetic analyses of two- and three-plate voltage-controlled oscillators (VCOs) with micromachined tunable capacitors
Authors: D. J. Keating
Venue: Proceedings of the Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (2003)

This work presents the simulation-based electromechanical and electromagnetic analyses of two-plate and three-plate CMOS voltage-controlled oscillators (VCOs). These oscillators, described in, use electromechanically tunable capacitors fabricated using the MUMPs process and integrated inductors. Numerical models for each capacitor design were constructed using appropriate dimensions and material properties. The effects of process-induced stresses and electrostatic fringing fields were incorporated in the design analyses of the capacitors. Coupled electromechanical analyses were performed to measure the behavior of the tunable capacitors as a function of the applied voltages. The two-plate capacitor has a nominal capacitance of 2.05 pF, is tunable to 3.08 pF, and has a Q-factor of 20 at 1 GHz and 11.6 at 2 GHz. The three-plate capacitor has a nominal capacitance of 4.0 pF, is tunable to 7.4 pF, and has a Q-factor of 15.4 at 1 GHz and 7.1 at 2 GHz. The electromagnetic analyses were performed using the Generalized Transverse Resonance-Diffraction (GTRD) method, a 3D integral equation approach well suited for quasi-planar structures involving thick conductors and dielectric discontinuities. Structures of this type usually prove to be challenging for standard 3D techniques (e.g. Finite Elements, Finite Differences, etc.) owing to their critical aspect ratio, while being ill-suited for the so-called 2.5 techniques, in which conductor thickness and dielectric discontinuities are hardly accounted for. The combination of electromechanical and electromagnetic simulations presented in this paper allows for complete analysis and optimization of RF MEMS devices to be performed at the simulation stage.
Number Encodings and Arithmetics over Multisets
Authors: Cosmin Bonchis, Cornel Izbasa, Gabriel Ciobanu
Venue: Proceedings of the Eighth International Symposium on Symbolic and Numeric Algorithms for Scientific Computing (2006)

In this paper we revise some previously defined nonpositional number encodings using multisets and their associated arithmetic operations, describing a general encoding/ decoding algorithm that can map natural numbers to their multiset representations, and vice versa. We present the templates for the most compact encodings in base b for successor and predecessor operations.
Laboratories for introductory circuits and electronics
Authors: M. D. Takach, R. G. Heeren
Venue: Proceedings of the Frontiers in Education Conference, on 1995. Proceedings., 1995 - Volume 02 (1995)

A set of design oriented experiments is being developed for the introductory circuits and electronics laboratories which have several goals: to strengthen the study of frequency domain concepts, to connect the circuits and electronics laboratory experiences into a cohesive whole, and to motivate the study of traditional transistor amplifier configurations. A thematic approach is used based upon the use of op-amp circuits and the design of operational amplifiers. Modeling is also central to the students' thought process since SPICE and/or MATLAB simulations are compared closely to both observed circuit behavior and analytical predictions. We describe the experiments under development and present some of our current experiences.
Efficient hybrid error concealment algorithm based on adaptive estimation scheme
Authors: Kuo-Liang Chung, Tzu-Huang Huang, Po-Hsuan Liao
Venue: Journal of Visual Communication and Image Representation (2007)

Video transmission plays an important role in multimedia communication. Due to transmission error; robust video transmission has become increasingly important in providing better quality of services. Based on our proposed novel adaptive estimation scheme, this paper presents an efficient hybrid error concealment algorithm for robust video transmission. Using the information of neighboring macroblocks (MBs) of the corrupted MBs, the corrupted MBs are first classified into three types. According to the type of the corrupted MB, our proposed adaptive estimation scheme could adopt the Bezier surface estimation, the first-order plane estimation, or the centroid of major cluster estimation to conceal the corrupted MB efficiently. Based on six testing video sequences, experimental results demonstrate that our proposed hybrid error concealment algorithm can improve the video quality and the execution-time performance over different loss rates.
Logo insertion in MPEG transcoder
Authors: K. Panusopone
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 200. on IEEE International Conference - Volume 02 (2001)

Various studies show that a basic architecture of an MPEG-2 transcoder consists of a cascaded decoder/encoder. Such a transcoder re-uses the motion vectors and minimizes the changes of macroblock mode. One interesting feature that can be added on this type of transcoder is to insert a translucent logo into the transcoded bit-stream.
The idea of instructional leadership in engineering education
Authors: J. Heywood
Venue: Proceedings of the 30th Annual Frontiers in Education - Volume 02 (2000)

During the last thirty years, the period of the Frontiers in Education conferences, there has been a research movement that has studied school effectiveness and thus the factors that lead to school improvement. While this movement has been of considerable interest to politicians and policy makers the idea of such research has made little impact on higher education where ideas derived from industry such as total quality management seem to have had greater effect. Associated with the school effectiveness movement is the concept of educational leadership and an ancillary concept of instructional leadership neither idea of which has infiltrated higher education. In parallel with these developments the study of qualitative and quantitative methods of educational research has made considerable progress. The purpose of this paper is to argue the case for instructional leadership in higher education and to indicate the qualities and knowledge required by those who might be asked to carry out such a task in engineering education. The paper begins with a summary of the research on school effectiveness.
Unsupervised lip segmentation under natural conditions
Authors: M. Lievin
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 06 (1999)

An unsupervised algorithm for speaker's lip segmentation is presented. A color video sequence of the speaker's face is acquired, under natural lighting conditions and without any particular make-up. First, a logarithmic color transform is performed from the RGB to HI (hue, intensity) color space and sequence dependant parameters are evaluated. Second, a statistical approach using Markov random field modeling segment the mouth shape using the red hue predominant region and motion in a spatiotemporal neighborhood. Simultaneously, a region of interest (ROI) is automatically extracted. Third, the speaker's lip shape is extracted from the final hue field with good quality results in this challenging situation.
Qunits in Two Way Quantum Key Distribution
Authors: Jesni Shamsul Shaari, Mohamed Ridza Wahiddin
Venue: Proceedings of the First International Conference on Quantum, Nano, and Micro Technologies (2007)

Works in two way deterministic quantum cryptography protocols using qubits and qutrits have seen the nontrivial generalization of the protocol to accommodate the use of all mutually unbiased bases (MUB). Here we consider the use of qunits (quantum systems of n dimensional Hilbert space) in a similar protocol and working with cases where the number of MUB is n+1 we show that n qunits are necessary to generalize to the use of all available MUBs. We also provide a recipe that would allow for encoding with unitary efficiency.