70
70
texts
eye 70
favorite 0
comment 0
This paper presents the results of numerical experiments devoted to examination of influence of the target attribute hypotheses definitions on quality of information fusion.
Topics: Primary hypotheses, posterior hypotheses, target threat
Testing Statistical Hypotheses
Topic: Testing Statistical Hypotheses
Testing Statistical Hypotheses
Topic: Testing Statistical Hypotheses
Journal of Research of the National Bureau of Standards
Topics: Index, mathematical statistics, statistical hypotheses
138
138
Jun 11, 2011
06/11
by
Rogers, J. L.; Bloebaum, C. L
texts
eye 138
favorite 0
comment 0
The design process associated with large engineering systems requires an initial decomposition of the complex system into modules of design tasks which are coupled through the transference of output data. In analyzing or optimizing such a coupled system, it is essential to be able to determine which interactions figure prominently enough to significantly affect the accuracy of the system solution. Many decomposition approaches assume the capability is available to determine what design tasks...
Topics: SOFTWARE ENGINEERING, COMPUTER PROGRAMMING, HYPOTHESES, TECHNOLOGY TRANSFER
SELF-DIRECTED LIFE-LONG LEARNING IS PROBLEM BASED LEARNING
Topics: Problem Based Learning (PBL), Hypotheses, Learning issues
97
97
Nov 19, 2015
11/15
by
Rajesh Singh, Jayant Singh, Florentin Smarandache
texts
eye 97
favorite 0
comment 0
In this paper we search for the optimum tests that minimize the sum of two error probabilities.
Topics: Testing hypotheses, Neyman-Pearson lemma, optimality, normal distribution
From the bitsavers.org collection, a scanned-in computer-related document. mit :: ai :: aim :: AITR-316
Topics: hypotheses, hypothesis, elementary, symptoms, symptom, disease, hematuria, diagnosis, chapter,...
From the bitsavers.org collection, a scanned-in computer-related document. mit :: lcs :: tr :: MIT-LCS-TR-283
Topics: hypotheses, findings, pip, internist, hypothesis, algorithm, syndromes, syndrome, finding,...
7
7.0
May 5, 2022
05/22
by
M. Govindaraju
texts
eye 7
favorite 0
comment 0
Now-a-days there has been vast usage of computer in all fields. Even though in college student are allowed to use the computers. While using computers in work it will reduce time and also reduce the work pressure. It is also used to store many data’s and recall it any time. Now learning process has been done online, namely online learning. Already we come across the e- learning, it is the learning process which helps the learner to know about the subject he wants to learn with the help of the...
Topics: Objectives, Hypotheses, The Sample, Method, Statistical Techniques, A Review
240
240
Jun 12, 2011
06/11
by
Thomas, Brian C.; Jackman, Charles H.; Melott, Adrian L.; Laird, Claude M.; Stolarski, Richard S.; Gehrels, Neil; Cannizzo, John K.; Hogan, Daniel P
texts
eye 240
favorite 0
comment 0
Based on cosmological rates, it is probable that at least once in the last Gy the Earth has been irradiated by a gamma-ray burst in our Galaxy from within 2 kpc. Using a two-dimensional atmospheric model we have computed the effects upon the Earth's atmosphere of one such burst. A ten second burst delivering 100 kJ/sq m to the Earth results in globally averaged ozone depletion of 35%, with depletion reaching 55% at some latitudes. Significant global depletion persists for over 5 years after the...
Topics: LANDING SITES, SURFACE PROPERTIES, MARS SURFACE, EVAPORATION, CYCLES, HYPOTHESES
The validity problem for certain universal Horn formulas of Kleene algebra with tests (KAT) can be efficiently reduced to the equational theory. This reduction is known as elimination of hypotheses. Hypotheses are used to describe the interaction of atomic programs and tests and are an essential component of practical program verification with KAT. The ability to eliminate hypotheses of a certain form means that the Horn theory with premises of that form remains decidable in PSPACE. It was...
Topics: DTIC Archive, Hardin,Chris, Cornell University Ithaca, algebra, hypotheses, verification
411
411
Jun 18, 2010
06/10
by
Pincherle, S
texts
eye 411
favorite 0
comment 0
Theory of hypergeometric functions based on principles of analytic function hypothesis
Topics: ANALYTIC FUNCTIONS, HYPERGEOMETRIC FUNCTIONS, HYPERSPACES, HYPOTHESES, ANALYTIC FUNCTION,...
230
230
Jun 18, 2010
06/10
by
Kalinkov, M.; Sadowski, L. A
texts
eye 230
favorite 0
comment 0
Statistical verification of hypothesis of radio source stars as supernovae
Topics: HYPOTHESES, RADIO STARS, STATISTICAL ANALYSIS, SUPERNOVAE, RADIO SOURCE, STAR, SUPERNOVA
UFO Magazine News Bulletin issue 6
Topics: ufo, ohio, object, mysticon, mckoane, hovered, hypotheses, parma, ufos, strange
673
673
Jun 12, 2011
06/11
by
Hoskins, W. Andrew; Schneider, Tod; Homiak, Daniel; Cassady, R. Joseph; Kerslake, Tom; Peterson, Todd; Ferguson, Dale; Snyder, Dave; Mikellides, Ioannis; Jongeward, Gary
texts
eye 673
favorite 0
comment 0
The sta:us of development of a Direct Drive Ha Thruster System is presented. 13 the first part. a s:udy of the impacts to spacecraft systems and mass benefits of a direct-drive architecture is reviewed. The study initially examines four cases of SPT-100 and BPT-4000 Hall thrusters used for north-south station keeping on an EXPRESS-like geosynchronous spacecraft and for primary propulsion for a Deep Space- 1 based science spacecraft. The study is also extended the impact of direct drive on orbit...
Topics: SPACE MISSIONS, REQUIREMENTS, SCHEDULING, ASTRONAUTS, COST REDUCTION, SCHEDULES, HYPOTHESES, ROBOTS
198
198
Jun 21, 2010
06/10
by
Friedland, B.; Sarachik, P. E
texts
eye 198
favorite 0
comment 0
Suboptimal control based on linear changes in vicinity of optimum trajectory
Topics: ASSUMPTIONS, CONSTRAINTS, OPTIMIZATION, CONTROL EQUIPMENT, COSTS, HYPOTHESES, MATHEMATICAL MODELS,...
198
198
May 23, 2011
05/11
by
Moses, Julianne I.; Allen, Mark; Gladstone, G. Randal
texts
eye 198
favorite 0
comment 0
We have modeled the photochemical evolution of the sulfur containing species that were observed in Jupiter's stratosphere after the Shoemaker Levy 9 (SL9) impacts. We find that most of the sulfur is converted to S8 in the first few days. Other important sulfur reservoirs are CS, whose abundance increases markedly with time, and possibly H2CS, HNCS, and NS, whose abundances depend on kinetic reaction rates that are unknown at the present. We discuss the temporal variation of the major sulfur...
Topics: HYPOTHESES, VORTICITY, ERRORS, DATA ACQUISITION, THREE DIMENSIONAL MODELS, MIXING LAYERS (FLUIDS)
827
827
May 28, 2011
05/11
by
Augustynowicz, S. D.; Fesmire, J. E
texts
eye 827
favorite 0
comment 0
The development of a cryogenic insulation system for operation under soft vacuum is presented in this paper. Conventional insulation materials for cryogenic applications can be divided into three levels of thermal performance, in terms of apparent thermal conductivity [k-value in milliwatt per meter-kelvin (mW/m-K)]. System k-values below 0.1 can be achieved for multilayer insulation operating at a vacuum level below 1 x 10(exp -4) torr. For fiberglass or powder operating below 1 x 10(exp -3)...
Topics: COMPUTER NETWORKS, HIGH SPEED, PACKET SWITCHING, ALGORITHMS, SCHEDULING, HYPOTHESES,...
When analyzing hypotheses about specific situations of interest there is often a need to combine information from multiple sources. This principle belongs to information fusion in general, and is called belief fusion when the evidence is represented as belief functions. Because different situations can involve different forms of belief fusion, there is no single formal model that is suitable for analyzing every situation. It is therefore crucial to identify the most adequate fusion operator for...
Topics: DTIC Archive, GEORGE MASON UNIV FAIRFAX VA, *DATA FUSION, CLASSIFICATION, HYPOTHESES
230
230
May 23, 2011
05/11
by
Filion, Christine M.; Washburn, David A.; Gulledge, Jonathan P
texts
eye 230
favorite 0
comment 0
Four experiments were conducted to assess whether or not rhesus macaques (Macaca mulatta) could represent the unperceived movements of a stimulus. Subjects were tested on 2 computerized tasks, HOLE (monkeys) and LASER (humans and monkeys), in which subjects needed to chase or shoot at, respectively, a moving target that either remained visible or became invisible for a portion of its path of movement. Response patterns were analyzed and compared between target-visible and target-invisible...
Topics: MICROGRAVITY, TISSUES (BIOLOGY), CULTURE TECHNIQUES, CELLS (BIOLOGY), CANCER, INTESTINES, MICE,...
Journal of Research of the National Bureau of Standards
Topics: Bibliography, testing of hypotheses, theory of estimation, theory of sample surveys
346
346
May 23, 2011
05/11
by
Shih, Ming-Hsi
texts
eye 346
favorite 0
comment 0
The objective of this work is to develop algorithms associated with a comprehensive computational simulation system for turbomachinery flow fields. This development is accomplished in a modular fashion. These modules includes grid generation, visualization, network, simulation, toolbox, and flow modules. An interactive grid generation module is customized to facilitate the grid generation process associated with complicated turbomachinery configurations. With its user-friendly graphical user...
Topics: OBJECT-ORIENTED PROGRAMMING, LIBRARIES, COMPUTERIZED SIMULATION, TASKS, INFERENCE, INDUSTRIES,...
Iconic Query, Corporate Vision, IDIS - IntelligenceWare
Topics: ixl, data, idis, iconic, query, database, users, corporate, hypotheses, ibm, iconic query
5
5.0
May 5, 2022
05/22
by
Mr. A. Antony Prabakar
texts
eye 5
favorite 0
comment 0
The present study deals with the analyses of examination stress and academic achievement among higher secondary students studying in different systems, namely, state, matriculation and the central board schools at the secondary level. They are both dependent variable and independent variable which is related to the sub – variables ( Gender, type of management, medium of instruction, type of schools, type of family, parents qualification, parents income, parents occupation). The research...
Topics: Examination stress, Academic achievements, variables, Hypotheses, Finding of the study, Tools,...
281
281
Jun 20, 2010
06/10
by
Eisenberger, I
texts
eye 281
favorite 0
comment 0
Hypotheses and estimation of correlation coefficient using six and eight quantiles, with application to space telemetry
Topics: CORRELATION COEFFICIENTS, ESTIMATING, TELEMETRY, DATA REDUCTION, DATA SYSTEMS, HYPOTHESES,...
200
200
May 31, 2011
05/11
by
Auger, Ludovic; Tangborn, Andre
texts
eye 200
favorite 0
comment 0
A suboptimal Kalman filter system which evolves error covariances in terms of a truncated set of wavelet coefficients has been developed for the assimilation of chemical tracer observations of CH4. The truncation is carried out in such a way that the resolution of the error covariance, is reduced only in the zonal direction, where gradients are smaller. Assimilation experiments which last 24 days, and used different degrees of truncation were carried out. These reduced the covariance, by 90, 97...
Topics: RESEARCH AND DEVELOPMENT, SCHOOLS, EDUCATION, COMPETITION, MICROGRAVITY, DROP TOWERS, STUDENTS,...
This study investigated whether a stacked bar s vertical arrangement or single-object properties underlie its accuracy for proportion judgments. We hypothesized that observers would be less accurate when stacked bars were separated than when they formed a single object, according to the object-based theory of attention (Duncan, 1984). Thirty participants judged proportions with three different graph types: bars, stacked bars, and staggered stacked bars. Stacked bars produced smaller error than...
Topics: DTIC Archive, DEFENCE RESEARCH AND DEVELOPMENT TORONTO (CANADA), *GRAPHS, *JUDGEMENT(PSYCHOLOGY),...
The current study investigates the effectiveness of mentoring and diversity training. We investigated the possibility that mentoring and diversity training improved individuals' personal accountability toward diverse groups, beliefs in the value of diversity, perceptions of cohesion and perceptions of work group effectiveness. We found that although mentoring and diversity training both predicted all four outcome variables, justice and inclusion were more effective in facilitating those...
Topics: DTIC Archive, DEFENSE EQUAL OPPORTUNITY MANAGEMENT INST PATRICK AFB FL, *LEADERSHIP, HYPOTHESES,...
This paper describes recent improvements in the weight estimation technique for sentence hypothesis rescoring using the N-Best formalism. Mismatches between training and test data are also explored.
Topics: DTIC Archive, Kannan, Ashvin, BOSTON UNIV MA, *WEIGHTING FUNCTIONS, *WORDS(LANGUAGE), ESTIMATES,...
910
910
May 31, 2011
05/11
by
Barth, Timothy; Ohlberger, Mari
texts
eye 910
favorite 1
comment 0
Finite volume methods are a class of discretization schemes that have proven highly successful in approximating the solution of a wide variety of conservation law systems. They are extensively used in fluid mechanics, porous media flow, meteorology, electromagnetics, models of biological processes, semi-conductor device simulation and many other engineering areas governed by conservative systems that can be written in integral control volume form. This article reviews elements of the foundation...
Topics: AUTOMATIC CONTROL, REAL TIME OPERATION, ARCHITECTURE (COMPUTERS), AUTONOMY, POSITION (LOCATION),...
4,351
4.4K
May 31, 2011
05/11
by
McBride, Bonnie J.; Zehe, Michael J.; Gordon, Sanfor
texts
eye 4,351
favorite 0
comment 0
This report documents the library of thermodynamic data used with the NASA Glenn computer program CEA (Chemical Equilibrium with Applications). This library, containing data for over 2000 solid, liquid, and gaseous chemical species for temperatures ranging from 200 to 20,000 K, is available for use with other computer codes as well. The data are expressed as least-squares coefficients to a seven-term functional form for C((sup o)(sub p)) (T) / R with integration constants for H (sup o) (T) / RT...
Topics: CASE HISTORIES, EARTH ORBITS, MAGNETIC FIELDS, ELECTRIC CURRENT, CONDUCTORS, STUDENTS, HYPOTHESES,...
The major goal of the proposed work is to develop new PCa imaging methods based on the collagen mimetic peptide (CMP)- mediated structural interrogation of the collagens associated with invasive tumor. In this proposal, we propose to use collagen mimetic peptide (CMP) as a collagen targeting agents that will allow imaging of invasive PCa. Since CMP binds to unstructured collagens more readily, it is expected to exhibit selective affinity to metastatic PCa tumors known to contain processed and...
Topics: DTIC Archive, JOHNS HOPKINS UNIV BALTIMORE MD, *PROSTATE CANCER, COLLAGEN, HYPOTHESES, NEOPLASMS,...
The problem of anomaly localization in a resource-constrained cyber system is considered. Each anomalous component of the system incurs a cost per unit time until its anomaly is identified and fixed. Different anomalous components may incur different costs depending on their criticality to the system. Due to resource constraints, only one component can be probed at each given time. The observations from a probed component are realizations drawn from two different distributions depending on...
Topics: DTIC Archive, ARMY RESEARCH LAB ADELPHI MD, *ANOMALIES, ALGORITHMS, COMPUTER NETWORKS, DETECTION,...
Multiple hypothesis tracking (MHT) addresses difficult tracking problems by maintaining alternative association hypotheses until enough good data e.g., features, are collected to select the correct hypotheses. Traditional MHT's cannot track targets over long durations because they frequently generate too many hypotheses to maintain the correct ones with the available processing resources. Track segment graph provides a compact and efficient representation of the key ambiguities in long term...
Topics: DTIC Archive, BAE SYSTEMS BURLINGTON MA, *TRACKING, *HYPOTHESES, *GRAPHS, SEGMENTED, TARGETS,...
IXL: The Discovery Machine, database query language
Topics: ixl, data, iconic, database, query, users, idis, hypotheses, corporate, ibm, iconic query,...
AFU 19670400 APRO Newsletter April v1 n1
Topics: ufo, apro, flying, newsletter, polaron, velocity, hypotheses, author, flux, activities, three...
506
506
May 23, 2011
05/11
by
Bowers, Albion H.; Pahle, Joseph W.; Wilson, R. Joseph; Flick, Bradley C.; Rood, Richard L
texts
eye 506
favorite 0
comment 0
This paper gives an overview of the NASA F-18 High Alpha Research Vehicle. The three flight phases of the program are introduced, along with the specific goals and data examples taken during each phase. The aircraft configuration and systems needed to perform the disciplinary and inter-disciplinary research are discussed. The specific disciplines involved with the flight research are introduced, including aerodynamics, controls, propulsion, systems, and structures. Decisions that were made...
Topics: POLYCYCLIC AROMATIC HYDROCARBONS, INFRARED SPECTROSCOPY, CATIONS, PYRENES, PHENANTHRENE, INFRARED...
This paper reports our experiments about parallel and sequential implementations for combining belief functions with an application to a medical diagnostic system. We use as a basis existing methods for combining two belief functions: a direct combination based on Dempster's rule and an indirect combination through Mobius transforms. We further explore various parallel algorithms for combining more than two belief functions, as different belief functions can be combined in any order as long as...
Topics: DTIC Archive, McLeish, Mary, Song, Fei, GUELPH UNIV (ONTARIO), *ALGORITHMS, FUNCTIONS, FRAMES,...
From the bitsavers.org collection, a scanned-in computer-related document. mit :: ai :: aim :: AIM-893
Topics: components, hypothesis, hypotheses, probe, behavior, component, suspects, fault, inputs,...
163
163
May 23, 2011
05/11
by
Whittenberger, J. Daniel; Noebe, R. D
texts
eye 163
favorite 0
comment 0
Small Zr additions are known to substantially affect the deformation behavior and strength of polycrystalline NiAl, yet little information is currently available regarding the high-temperature properties of such alloys. Utilizing prealloyed powder technology, a series of four NiAl alloys have been produced containing from 0.05 to 0.7 at. pct Zr. The creep behavior of these alloys was characterized in compression between 1000 and 1400 K at strain rates ranging from approx. O.1 to 10(exp -9)/...
Topics: EAR, REPTILES, HYPOTHESES, HAIR, MORPHOLOGY, TRANSMISSION ELECTRON MICROSCOPY, VERTEBRATES,...
Results are reported on the first two conjectures that were to be investigated as described in the research proposal. Conjecture 1 has been established and follow-on results are obtained. What remains to be investigated is the use of these results to make confidence statements and to test hypotheses. Results which establish the truth of conjecture 2 are also reported. Additional keywords: Theorems; Estimates; Covariance; Convergence. (Author)
Topics: DTIC Archive, Beder,J, WISCONSIN UNIV-MILWAUKEE, *MATHEMATICAL ANALYSIS, ESTIMATES, CONVERGENCE,...
Heteroscedastic two-way ANOVA models are frequently encountered in experimental sciences, e.g., biology, psychology and physics among others. In the literature, classical F-tests are often blindly employed although they are often biased even for moderate heteroscedasticity. To overcome this problem, several approximate tests, e.g., generalized P-values, bootstrap, and permutation-based tests among others, have been proposed in the literature. These tests, however, are computationally intensive...
Topics: Heteroscedastic Two-way ANOVA, Modified Bartlett Correction, Tests of Linear Hypotheses, Wald-type...
226
226
Sep 20, 2010
09/10
by
Hagood, Nesbitt W.; Crawley, Edward F
texts
eye 226
favorite 0
comment 0
Viewgraphs on cost averaging techniques for robust control of flexible structural systems are presented. Topics covered include: modeling of parameterized systems; average cost analysis; reduction of parameterized systems; and static and dynamic controller synthesis.
Topics: ECONOMIC ANALYSIS, ROBOTS, ECONOMICS, ECONOMY, POLICIES, THEOREM PROVING, TURING MACHINES,...
364
364
Jun 3, 2011
06/11
by
Baker, Donald J.; Fudge, Jack; Ambur, Damodar R.; Kassapoglou, Christo
texts
eye 364
favorite 0
comment 0
A composite isogrid panel design for application to a rotorcraft fuselage is presented. An optimum panel design for the lower fuselage of the rotorcraft that is subjected to combined in-plane compression and shear loads was generated using a design tool that utilizes a smeared-stiffener theory in conjunction with a genetic algorithm. A design feature was introduced along the edges of the panel that facilitates introduction of loads into the isogrid panel without producing undesirable local...
Topics: ATMOSPHERIC CIRCULATION, VOLCANOLOGY, HYDROLOGICAL CYCLE, CLIMATOLOGY, MARS SURFACE, DRYING,...
The intelligence analysis process consists of a complex, iterative, highly-branched sequence of information gathering and processing steps. Throughout the process, the analyst needs to refer to the hypotheses and information he or she was manipulating at previous points in the process. A key enabler for the analytic process would be to provide analysts with semantic bookmarks, i.e., a mechanism that would allow them to return to a particular point in the analysis and recreate the complete...
Topics: DTIC Archive, SET CORP ARLINGTON VA, *INFORMATION PROCESSING, INFORMATION RETRIEVAL, HYPOTHESES,...
A method of mid-level pattern recognition provides for a pose invariant Hough Transform by parametrizing pairs of points in a pattern with respect to at least two reference points, thereby providing a parameter table that is scale- or rotation-invariant. A corresponding inverse transform may be applied to test hypothesized matches in an image and a distance transform utilized to quantify the level of match.
Topics: NASA Technical Reports Server (NTRS), HYPOTHESES, PATTERN RECOGNITION, TRANSFORMATIONS...
Robots have become more and more sophisticated. Every robot has its limits. If we face a task that existing robots cannot solve, then, before we start improving these robots, it is important to check whether it is, in principle, possible to design a robot for this task or not. For that, it is necessary to describe what exactly the robots can, in principle, do. A similar problem - to describe what exactly computers can do - has been solved as early as 1936, by Turing. In this paper, we describe...
Topics: NASA Technical Reports Server (NTRS), ROBOTS, AUTOMATA THEORY, FORMALISM, MATHEMATICAL LOGIC,...
The objective of this proposal is to examine the influence of stressors and benefits related to work and family on dual-military marriage wellbeing. The central hypothesis of the proposed research is that individuals in dual-military marriages are exposed to unique stressors and benefits in the work and family domain. Those individuals in dual-military marriages who receive little or no support from either domain will experience both negative health and lower subjective feelings of wellbeing....
Topics: DTIC Archive, NORTHERN ARIZONA UNIV FLAGSTAFF, *ARMY PERSONNEL, *MARRIAGE, DATA ACQUISITION,...
256
256
May 23, 2011
05/11
by
Oleson, Steven; Hamley, John; Sankovic, Joh
texts
eye 256
favorite 1
comment 0
This study assesses the use of capacitor powered Hall thrusters for drag makeup of a sample LEO spacecraft. Charged by solar array power, the capacitors provide high voltage power directly to the Hall thrusters, alleviating the need for a costly power processing unit. Capacitor driven Hall thruster performance is compared to a baseline state-of-art hydrazine monopropellant system as well as Hall thrusters driven through a power processing unit directly connected to solar array power or a...
Topics: GRAVITATIONAL FIELDS, LIFE SCIENCES, BIOMEDICAL DATA, INERTIA, FORCE DISTRIBUTION, PRODUCTIVITY,...
