tel.: +385 1 459 44 44, fax: +385 1 459 44 69

E-mail: ured@znanost.hr

- Paper in journal
*4*

- Paper in proceedings
*14*

- Summary in proceedings
*3*

- M.A.
*1*

- Computer program
*2*

- Data base
*1*

- Survey/Study
*4*

- New product
*4*

**Type of paper**:*Paper in journal*

**Title:**Comparison of simulation methods in the estimation of the ordered characteristic roots of a random covariance matrix

**Authors:**- Lužar, Vesna (26962)
- Olkin, Ingram

**Journal**: Contemporary Mathematics

**ISSN**: -

**Volume**: 115

**Year**: 1991

**Pages**: from 189 to 202

**Number of references**: 10

**Language**: engleski

**Summary**: Several simulation methods are used to evaluate the expected values and correlations of the ordered characteristic roots of a sample covariance matrix arising from a normal distribution with zero mean and identity covariance matrix. The methods used are importance sampling coupled with regression and ratio estimates. The comparison of the efficiency of these methods is determined, where efficiency is defined in terms of variability measures.

**Keywords**: Ordered characteristic roots, random covariance matrix,simulation methods, importance sampling, multidimensionalintegrals, chi-square density, regression estimates.

**Type of paper**:*Paper in journal*

**Title:**Histological reclassification of cronic viral hepatitis: A cluster analysis

**Authors:**- Persico, Marcelo
- Lužar, Vesna (26962)
- Caporaso, N.M.
- Coltorti, N.

**Journal**: MEDIC

**Volume**: 1

**Year**: 1993

**Pages**: from 23 to 27

**Number of references**: 8

**Language**: talijanski

**Type of paper**:*Paper in journal*

**Title:**Malecot's Isolation by Distance Model: Empirical Behavior and Theoretical Considerations

**Authors:**- Zegura, Stephen L.
- Šimić, Diana
- Rudan, Pavao

**Journal**: Journal of Quantitative Anthropology

**ISSN**: 0922-2995

**Volume**: 5

**Year**: 1995

**Pages**: from 171 to 189

**Number of references**: 67

**Language**: engleski

**Summary**: The paper presents: (1) an hystorical review of the development of Malecot's isolation by distance model, (2) a synthetic symmary of empirical results from four major components of the middle Dalmatian population system, (3) a novel table of 'critical' values of Malecot's parameter 'b' zo aid in the interpretation of isolation by distance effects, and (4) a simulation study designed to analyze the power of the quadratic assignment procedure for testing the significance of Pearson's product-moment and Spearman's rank-order correlation coefficients.

**Keywords**: Dalmatia, isolation bz distance, Malecot, power, quadratic assignment, simulation

**Type of paper**:*Paper in journal*

**Title:**PILOT- A Simple Process Improvement Tool for Small and Midsize Manufacturing Companies

**Authors:**- De Dominicis, Rodolfo
- Lužar, Vesna (26962)
- Granata, Laura

**Journal**: Journal of Computing and Information Technology (CIT)

**Number**: 2

**ISSN**: 1330-1136

**Volume**: 3

**Year**: 1995

**Number of references**: 16

**Language**: engleski

**Summary**: PILOT (Process Improvement by L.O.G.I.C.A. Operational Team) is a complete process improvement pilot study application, providing data collection, entry, analysis and decision making. It is designed primarily as a simple, easy-to-use diagnostic tool for production process description, problem identification and improvement in small and midsize manufacturing companies, characterised by relatively small amounts of data emerging daily. The analysis of the information collected facilitate tracing down the sources of the identified production related problems and finding means for eliminating or minimising them. The statistical methodology utilised includes simple, but useful tabular and graphical techniques, such as Ishikawa's Seven Tools, but also some sophisticated exploratory data analysis methods, e.g. correspondence and cluster analysis. Furthermore, the results of PILOT constitute a good basis for developing more advanced studies, utilising statistical and/or simulation methodologies, and for setting up SPC charting information systems or designed experiments. An effective PILOT application in a midsize company manufacturing department is described for illustrative purposes.

**Keywords**: Ishikawa Seven Tools, Process Improvement, Productivity Measures, Total Quality Control, Traveler Form, Work Cycles

**Type of paper**:*Paper in proceedings*

**Title:**Importance sampling method in the estimation of the ordered characteristic roots of a random covariance matrix

**Authors:**- Lužar, Vesna (26962)
- Smoljanović, Lada

**Editors**- Lužar, Vesna (26962)
- Čerić, Vlado
- Dobrić, Vesna

**Proceedings title**: Proceeding of the 13th Conference "ITI '91"

**Language**: engleski

**Place**: Cavtat, Republika Hrvatska

**Year**: 1991

**ISBN/ISSN**: 1330-1012

**Pages**: from 319 to 326

**Meeting**: Information Technology Interfaces

**Held**: from 06/10/91 to 06/13/91

**Keywords**: Characteristic roots, importance sampling, importance sampling function, efficiency

**Type of paper**:*Paper in proceedings*

**Title:**Some relations between least squares and robust linear regression estimates

**Authors:**- Momirović, Konstantin

**Editors**- Lužar, Vesna (26962)
- Čerić, Vlado
- Dobrić, Vesna

**Proceedings title**: Proceedings of the 13th International Conference "ITI '91"

**Language**: engleski

**Place**: Cavtat, Republika Hrvatska

**Year**: 1991

**ISBN/ISSN**: 1330-1012

**Pages**: from 327 to 335

**Meeting**: Information Technology Interfaces

**Held**: from 06/10/91 to 06/13/91

**Type of paper**:*Paper in proceedings*

**Title:**Quasiimage transformations of a set of quantitative variables

**Authors:**- Momirović, Konstantin

**Proceedings title**: Zbirka Metodološki zvezki

**Language**: engleski

**Place**: Ljubljana, Republika Slovenija

**Year**: 1991

**ISBN/ISSN**: 1318-1726

**Pages**: from 0 to 0

**Meeting**: Blejsko metodološko srečanje '91

**Type of paper**:*Paper in proceedings*

**Title:**On some distance and similarity measures in antiimage metrics

**Authors:**- Momirović, Konstantin

**Proceedings title**: Zbornik radova 4. Majski skup Sekcije za klasifikacije SSDJ

**Language**: hrvatski

**Place**: Mostar, SFRJ

**Year**: 1990

**Pages**: from 126 to 130

**Meeting**: Majski skup Sekcije za klasifikacije

**Held**: from 05/18/90 to 05/19/90

**Type of paper**:*Paper in proceedings*

**Title:**On some distance and similarity measures among objects in mirror image and antimirror image space

**Authors:**- Momirović, Konstantin
- Gredelj, Marijan

**Proceedings title**: Zbornik radova 4. Majski skup Sekcije za klasifikaciju SSDJ

**Language**: hrvatski

**Place**: Mostar, SFRJ

**Year**: 1990

**Pages**: from 131 to 136

**Meeting**: Majski skup Sekcije za klasifikacije

**Held**: from 05/18/90 to 05/19/90

**Type of paper**:*Paper in proceedings*

**Title:**On some importance sampling functions for the estimation of the ordered characteristic roots of a random covariance matrix

**Authors:**- Lužar, Vesna (26962)

**Proceedings title**: ASA: Proceeding of Statistical Computing Section

**Language**: engleski

**Place**: Washington, USA

**Year**: 1991

**Pages**: from 249 to 254

**Meeting**: Joint Statistical Meetings

**Held**: from 08/06/90 to 08/09/90

**Type of paper**:*Paper in proceedings*

**Title:**On the power of the quadratic assignment procedure under the isolation by distance model

**Authors:**- Šimić, Diana
- Zegura, Stephen L.

**Editors**- Čerić, Vlado
- Dobrić, Vesna

**Proceedings title**: Proceedings of the 16th International Conference ITI'94

**Language**: engleski

**Place**: Zagreb

**Year**: 1994

**ISBN/ISSN**: 1330-1012

**Pages**: from 233 to 238

**Meeting**: Information Technology Interfaces

**Held**: from 06/14/94 to 06/17/94

**Summary**: Assesing statistical significance of correlation between distance matrices is difficult due to problems arising from nonlinearity and relationship and interdependencies between pair-wise distances in each matrix. Quadratic assignment procedure has been proposed as a valid permutation test of association between matrices. In this paper power of the quadratic assignment strategy applied to Pearson's correlation coefficient is estimated on distance matrices simulated according to Malecot's isolation by distance model. Power of the test is satisfactory for range of values of model parameter and error component variance which are often reported in literature.

**Keywords**: quadratic assignment, power of test, isolation by distance, correlation

**Type of paper**:*Paper in proceedings*

**Title:**Characterisation of actual urban driving cycles by means of basic statistical analysis: A preliminary approach

**Authors:**- Della Ragione, Livia
- Giglio, Veniero
- Lužar, Vesna (26962)
- Rapone, Mario

**Proceedings title**: Proceeding of the 3rd Intern. Symposium "Transport and Air Pollution"

**Language**: engleski

**Place**: Bron, France

**Year**: 1994

**Pages**: from 130 to 135

**Meeting**: Transport and Air Pollution

**Held**: from 06/06/94 to 06/10/94

**Summary**: A large database of vehicle operating conditions, recorded in the urban traffic of Naples has been designed, built and analysed in terms of kinematic sequences, describing the car behavior between two successive stops. The main objective of the preliminary analysis presented in this paper is the identification of typical sequences, characterising traffic in the most congested areas of the town. Hierarchical cluster analysis yielded 6 groups of sequences clearly distinguishable by variables related to velocity, gear ratio and acceleration.

**Keywords**: car kinematics parameters, cluster analysis, kinematic sequences, urban traffic

**Type of paper**:*Paper in proceedings*

**Title:**Urban driving cycles for emission testing

**Authors:**- Della Ragione, Livia
- Giglio, Veniero
- Lužar, Vesna (26962)
- Rapone, Mario

**Proceedings title**: Proceedings of the 27th ISATA Conference

**Language**: engleski

**Place**: Aachen, Germany

**Year**: 1994

**Pages**: from 485 to 492

**Meeting**: ISATA Conference

**Summary**: Data on vehicle operating conditions have been recorded by a specially equipped car, while circulating through Naples on several typical routes, during rush hours. Traffic has been described in terms of parts of movements between two consecutive stops ("kinematic sequences"), characterized by a number of kinematic varables, such as mean velocity, driving and idling time, gear ratio, number of velocity peaks, etc. Cluster analysis was applied first to identify characteristic sequences, and second to detect the characteristic series of sequences. These series were denoted as driving cycles, and were used for characterizing different traffic intensity levels. The cycle groups were described in terms of kinematic variables, and a typical representative of each group was identified and graphicaly presented.

**Keywords**: driving cycles, empirical transition probability, kinematic sequences, traffic intensity level

**Type of paper**:*Paper in proceedings*

**Title:**Determination of driving cycles for emission modelling in urban areas: A case study

**Authors:**- Della Ragione, Livia
- Rudan, Pavao
- Lužar, Vesna (26962)

**Proceedings title**: Proceeding of the 1st Intern. Conference on Urban Transport and Environment

**Language**: engleski

**Place**: Glasgow, UK

**Year**: 1995

**Pages**: from 253 to 260

**Meeting**: Urban Transport and Environment for the 21st Century Symposium

**Held**: from 06/14/95 to 06/17/95

**Summary**: An experimental approach has been applied to define driving cycles characterizing driving behavior in urban traffic. Driving cycles are to be used for the evaluation of exhaust emissions from individual vehicles in traffic. Designed trips have been performed by an instrumented car in highly congested urban area of Naples. Vehicle and engine operating conditions have been recorded. Car velocity profile was analyzed in terms of kinematic sequences describing conditions between two successive stops. Series of successive sequences with homogenous characteristics were used to define, by cluster analysis, experimental driving cycles representing different traffic conditions. Results of the analysis are summarized and graphicaly presented.

**Keywords**: designed experiment, driving cycles, urban traffic, velocity profile

**Type of paper**:*Paper in proceedings*

**Title:**Experimental evaluation of fuel consumption and emissions in conjested urban traffic

**Authors:**- Rapone, Mario
- D'Aniello, Fulvio
- Della Ragione, Livia
- Lužar, Vesna (26962)

**Proceedings title**: Proceedings of SAE Fuels and Lubricants Meeting

**Language**: engleski

**Year**: 1995

**Meeting**: SAE Fuels and Lubricants Meeting

**Held**: from 10/16/95 to 10/19/95

**Other**: Paper No. 952401 SP1120, SAE (Society of Automotive Engineers) Publication

**Type of paper**:*Paper in proceedings*

**Title:**Intraclass and interclass correlation coefficients with application

**Authors:**- Smoljanović, Lada

**Editors**- Ferligoj, Anuška
- Kramberger, Anton

**Proceedings title**: Developments in Statistics and Methodology, Metodološki zvezki 9

**Language**: engleski

**Place**: Ljubljana, Republika Slovenija

**Year**: 1993

**ISBN/ISSN**: 1318-1726

**Pages**: from 57 to 63

**Meeting**: International Conference on Methodology and Statistics

**Held**: from 09/24/92 to 09/26/92

**Summary**: A number of estimates of intraclass and interclass correlation coefficient and tests are reviewed and compared. Interclass estimators considered were: pairwise, sib-mean, random-sib and ensamble estimators, while intraclass coefficients were estimated by components of variance method, random effects model, and maximum likelihood method.

**Keywords**: interclass, intraclass, correlation coefficient, estimates

**Type of paper**:*Paper in proceedings*

**Title:**Using descriptive sampling to improve importance sampling

**Authors:**- Lužar, Vesna (26962)
- Dobrić, Vesna

**Editors**- Čerić, Vlado
- Dobrić, Vesna

**Proceedings title**: Proceedings of the 14th Int. Conference on Information Technology Interfaces

**Language**: engleski

**Place**: Zagreb

**Year**: 1992

**ISBN/ISSN**: 1330-1012

**Pages**: from 331 to 341

**Meeting**: Information Technology Interfaces

**Held**: from 09/15/92 to 09/18/92

**Summary**: Descriptive sampling has been introduced bz Saliby as a better and more appropriate alternative to traditional simple random sampling in Monte Carlo experiments. Instead of random input sample selection, in descriptive sampling (DS) values are selected in deterministic manner. On the other hand, importance sampling (IS) is a variance reduction technique in which input sample selection i controlled, but still random. The purpose of this paper is to examine the reduction in sampling bias and variance when descriptive sampling is applied in selecting input values for importance sampling. A simple Monte Carlo experiment showed that IS coupled with DS yields moderate to considerable variance reduction.

**Keywords**: descriptive sampling, importance sampling, integral

**Type of paper**:*Paper in proceedings*

**Title:**Problem of estimating the correlation between relatives

**Authors:**- Smoljanović, Lada

**Editors**- Čerić, Vlado
- Dobrić, Vesna

**Proceedings title**: Proceedings of the 14th Int. Conference on Information Technologz Interfaces

**Language**: engleski

**Place**: Zagreb

**Year**: 1992

**ISBN/ISSN**: 1330-1012

**Pages**: from 343 to 350

**Meeting**: Information Technology Interfaces

**Held**: from 09/15/92 to 09/18/92

**Summary**: Review of various estimators of interclass and intraclass correlations as well as their tests of significance is given. The comparison of these estimates and tests is performed according to the work of Donner and Rosner.

**Keywords**: intraclass correlation, interclass correlation, familial data

**Type of paper**:*Summary in proceedings*

**Title:**The influence of war-time migration on registered tuberculosis in Zagreb, Croatia

**Authors:**- Pavlović, M.
- Živković, D.
- Krstić-Burić, M.
- Šimić, Diana

**Editors**- Ferline, R.
- Schlegel, J.

**Proceedings title**: Tubercle and Lung Disease, Volume 75, Supplement 1

**Language**: engleski

**Place**: Mainz, Germany

**Year**: 1994

**ISBN/ISSN**: 0962-8479

**Pages**: from 66 to 67

**Meeting**: 28th World Conference on IUATLD/UICTMR

**Held**: from 06/14/94 to 06/17/94

**Summary**: A sample of 2144 TB patients (783 in 1989, 806 in 1992, 555 in 1993) was analyzed by hierarchical loglinear analysis. The results indicate that there is a change in tuberculosis frequencz in war-time as compared to the pre-war zear. A significant difference was found with regard to sex, age and refugees when two variables are analyzed together.

**Type of paper**:*Summary in proceedings*

**Title:**On twodimensional symmetric interval eigenvalue problem

**Authors:**- Šimić, Diana

**Proceedings title**: IMACS-GAMM International Symposium on Numerical Methods and Error-Bounds

**Language**: engleski

**Place**: Oldenburg, Germany

**Year**: 1995

**Pages**: from 31 to 31

**Meeting**: International Symposium on Numerical Methods and Error-Bounds

**Held**: from 07/09/95 to 07/12/95

**Summary**: Recent Delf's results on symmetric interval eigenvalue problem are applied to twodimensional interval symmetric matrices. For symmetric interval matrices of higher dimension the results apply only to eigenvalues belonging to eigenvectors with sign pattern constant over the interval matrix. Bounds on the width of the interval matrix sufficient for the invariance of eigenvector sign pattern are hard to verify. Constraining the symmetric interval matrices to subsets of symmetric point matrices is natural for many applications. When twodimensional symmetric interval matrix is constrained to is subset containing only symmetric point matrices, it is possible to characterize the sets of its eigenvalues and eigenvectors without bounding its width. These characteriyations are a basis for the construction of interval Jacobi method.

**Type of paper**:*Summary in proceedings*

**Title:**Interval Jacobi algorithm for symmetric eigenvalue problems

**Authors:**- Šimić, Diana

**Proceedings title**: ICIAM 95 Book of Abstracts

**Language**: engleski

**Place**: Hamburg, Germany

**Year**: 1995

**Pages**: from 442 to 442

**Meeting**: The Third International Congress on Industrial and Applied Mathematics (ICIAM 95)

**Held**: from 07/03/95 to 07/07/95

**Type of paper**:*M.A.*

**Title:**Application of Interval Methods to Symmetric Eigenvalue Problem

**Faculty**: Matematički odjel Prirodoslovno-matematičkog fakulteta Sveučilište u Zagrebu

**Author**: ŠIMIĆ DIANA

**Date of defense**: 07/12/94

**Language**: hrvatski

**Number of pages**: 255

**Summary**: In this thesis Deif's results on symmetric interval eigenvalue problem were used to find exact bounds for eigenvalues of a twodimensional interval symmetric matrix. Results were used to define interval Jacobi method. This method does not always converge, but even in the case of divergence inclusion is guaranteed by using the Gershgorin circle theorem. Results of the numerical investigation on real matrices confirms numerical stability of the Jacobi method. Numerical investigation on interval matrices shows that method converges on small matrices even when lower and upper bounds of their elements agree in only 2-3 most significant digits. Even when exact bounds are necessary, interval Jacobi method may be used to obtain initial data on the stability of sign patterns of eigenvectors, and to obtain bounds on rounding errors when solving real symmetric eigenvalue problems which provide exact eigenvalue bounds.

**Keywords**: Deif's method, eigenvalues, interval methods, interval Jacobi method, interval symmetric matrix

**Type of paper**:*Computer program*

**Title:**

**Authors:**- De Dominicis, Rodolfo
- Lužar, Vesna (26962)
- Granata, Laura

**Odering party**: L.O.G.I.C.A. Innovazione

**Institution depot**: University of Naples

**HW platform**: PC

**Operating system**: DOS

**Programming language**: SAS (Base, STAT, GRAPH, FSP, AF, QC)

**Year**: 1992

**Summary**: PILOT (Process Improvement by LOGICA Operational Team) is a complete process improvement pilot study application, providing data collection, entry, analysis and decision making. It is designed primarily as a simple, easy-to-use diagnostic tool for process production description, problem identification and improvement in small and midsize manufacturing companies, characterised by relatively small amount of data emerging daily. The statistical methodology utilized include simple, but useful tabular and graphical techniques, such as Ishikawa's Seven Tools. Data on important product characteristics or time (production, waiting, etc.) can be entered directly, or using special data entry forms (e.g. "traveler form").

**Keywords**: Process improvement, Ishikawa's seven tools, control charting, pilot study, manufacturing companies.

**Type of paper**:*Computer program*

**Title:**SIMUL - Simulation for optimizing performance of a turboshaft aeroengine

**Authors:**- Lužar, Vesna (26962)
- Colauntoni, Salvatore

**Odering party**: Alfa Romeo Avio, Research and Development Department

**Institution depot**: Alfa Romeo Avio, Research and Development Department

**HW platform**: VAX

**Operating system**: VMS

**Programming language**: SAS (Base, STAT, GRAPH)

**Year**: 1993

**Summary**: The SIMUL program is written using SAS macro language and as such is flexible and easy to use. Values of macro variables (e.g. specification limits, number of replications, etc.) could be changed before running the program. Thus, input to the program are macro variables and a SAS dataset needed for estimating regression coefficients later used in simulations. In the simulation part of the program values are drawn at random from each "uncontrollable" component distribution and combined (using the model equation) to obtain the simulated values of responses (some critical performance measures). Output from SIMUL consist of three different tables, printed for each combination of fixed variables. These are: 1. Tables of the values of PRTL, PRT, PRTH, 2. Tables of the values of predicted response (critical performance characteristics) means and standard deviations, 3. Tables of the values of expected losses due to each response and both. PRT, PRTL and PRTH are predicted probability of success, lower and higher probability limits, respectively. The losses have been included in the third table in order to take into account uncertainty of prediction. Thus, the optimal conditions could be found by minimizing expected loss, i.e. by choosing the setting of fixed variables for which expected loss is close to 0.

**Keywords**: macro programming, optimal performance, regression, SAS, simulation, specification limits

**Type of paper**:*Data base*

**Title:**Kinematic Sequences Database (KINSEQ)

**Authors:**- Lužar, Vesna (26962)
- Rapone, Mario
- Della Ragione, Livia

**Institution administrator**: Istituto Motori, CNR

**HW platform**: SUN Sparc Workstation

**Operating system**: UNIX

**Base format**: SAS dataset

**Summary**: A large database of "kinematic sequences" has been formed from vehicle operating data recorded by a specially equipped car in highly conjested urban traffic. Data were collected following a designed experiment with driver, route and time-of-day (morning/afternoon) as factors. Original data (recorded every second) were transformed into sequence level data, where a sequence is defined as a period between two successive stops. One record in a database corresponds to one sequence. Variables (fields in the database) are different vehicle operating characteristics, such as, average velocity, number of peaks, distance covered, idling time, percentage of time in i-th gear (I=1,5), etc.

**Type of paper**:*Survey/Study*

**Title:**Application of Statistical Methodology and Simulation to Predict the Performance of a Turboshaft Aeroengine I

**Authors:**- Lužar, Vesna (26962)
- De Dominicis, Rodolfo

**Ordering party**: Alfa Romeo Avio, Research and Development Department

**Institution depot**: Alfa Romeo Avio, Research and Development Department

**Year**: 1992

**Number of pages**: 63

**Language**: engleski

**Summary**: A statistical procedure has been developed to predict the probabilities of a turboshaft aeroengine to achieve prescribed performance specifications. The application is based on a statistical model that relates different relevant assembly variables to the performance measures, and on simulation experiments, that estimate the influence of the uncontorllable variables on the performance. Special attention has been given to the validity of the procedure and on the effects of the errors in measurements on the parameter estimates. Also, methods for efficient generating of dependent truncated normal random variables have been proposed and tested.

**Keywords**: Predicted probabilities, performance prediction, regression, errors-in-measurement models, truncated normal random generators, Jackknife method, cross-validation.

**Type of paper**:*Survey/Study*

**Title:**Application of Statistical Methodology and Simulation to Predict the Performance of a Turboshaft Aeroengine II

**Authors:**- Lužar, Vesna (26962)
- De Dominicis, Rodolfo

**Ordering party**: Alfa Romeo Avio, Research and Development Department

**Institution depot**: Alfa Romeo Avio, Research and Development Department

**Year**: 1993

**Number of pages**: 70

**Language**: engleski

**Summary**: The simulation procedure developed in the first part of the study has been modified and applied also to another type of aeroengine. Both procedures have been validated with data collected during 1991-1993. The errors-in-varaibles model has been developed and implemented for the second type of aeroengine. The biases in the regression coefficient estimates have been estimated by simulation. The trade-off between increasing precision and minimizing risk of wrong prediction has been studied. The need for collecting new data using experimental design has been emphasized.

**Keywords**: Simulation experiment, errors-in-variables models, validation study, bias, risk of wrong prediction, planning for experimental design

**Type of paper**:*Survey/Study*

**Title:**Characterisation of urban driving cycles

**Authors:**- Della Ragione, Livia
- Giglio, Veniero
- Lužar, Vesna (26962)
- Rapone, Mario

**Ordering party**: Istituto Motori, CNR

**Institution depot**: Istituto Motori, CNR

**Year**: 1993

**Number of pages**: 40

**Language**: engleski

**Summary**: A large data base of vehicle operating conditions, recorded in the urban traffic of Naples has been designed, built and analysed in terms of kinematic sequences, describing the car behavior between two successive stops. The main objective of the study has been the identification of typical sequences and cycles that characterize traffic in the most congested areas of the town. Hierarchical cluster analysis yielded six groups of sequences, clearly distinguishable by variables related to car velocity, gear ratio and acceleration.

**Keywords**: kinematic sequences, traffic, car operating condition, cluster analysis, time series models, canonical discriminant analysis.

**Type of paper**:*Survey/Study*

**Title:**Evaluation of statistical forecast models of air quality data in the presence of outliers

**Authors:**- Smoljanović, Lada

**Ordering party**: University of Venice, Statistics Laboratory

**Year**: 1993

**Number of pages**: 10

**Language**: engleski

**Other**: Rad je prezentiran na skupu "Statchem '93" (Incontro di chimica analitica dell'ambiente) u rujnu 1993 u Veneciji, a izradjen je u toku znanstvenog usavršavanja L. Smoljanović na Laboratoriju za statistiku Sveučilišta u Veneciji tokom 1993 godine.

**Type of paper**:*New product*

**Title:**SAS basics and programming language

**Authors:**- Dobrić, Vesna

**Approved by institution**: Sveučilišni računski centar

**Date of approval**: 03/20/93

**Language**: hrvatski

**Other**: Broj stranica: 220.

**Type of paper**:*New product*

**Title:**SAS graphics

**Authors:**- Smoljanović, Lada
- Dobrić, Vesna

**Approved by institution**: Sveučilišni računski centar

**Institution depot**: Sveučilišni računski centar

**Date of approval**: 06/01/94

**Language**: hrvatski

**Other**: Broj stranica: 230.

**Type of paper**:*New product*

**Title:**SAS and applied statistics

**Authors:**- Dobrić, Vesna

**Approved by institution**: Sveučilišni računski centar

**Institution depot**: Sveučilišni računski centar

**Date of approval**: 03/20/93

**Language**: hrvatski

**Other**: Broj stranica: 260.

**Type of paper**:*New product*

**Title:**Quality improvement with SAS and statistics

**Authors:**- Lužar, Vesna (26962)

**Approved by institution**: Sveučilišni računski centar

**Institution depot**: Sveučilišni računski centar

**Date of approval**: 03/01/95

**Language**: hrvatski

**Other**: Broj stranica: 167.

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