144 research outputs found
Equating Test Scores Based on Their IRT Calibration
No full text[Atanasov Dimitar; Атанасов Димитър]; [Dimitrov Dimiter; Димитров Димитър]Common problem arising in the everyday practice of ability evaluation using tests is how one can compare or equate the scores obtained on different tests or different forms of the same test. Under the main assumption that these tests are based on the same unidimensional latent trait, their scores can be compared using the IRT calibration of the items in both tests. In this paper a procedure for test score equating, based on the sequence of tests with common items in each test are considered. 2010 Mathematics Subject Classification: 91E10, 91E45
Робастни методи за скалиране и точково оценяване
No full textСУ "Св. Климент Охридски", факултет по математика и информатика, 2006 г., присъждане на образователна и научна степен "доктор" на Димитър Владиславов Атанасов по научна специалност 01.01.10, теория на вероятностите и математическа статистика. [Atanasov Dimitar Vladislavov; Атанасов Димитър Владиславов
Is unitary and integral Yugoslavia possible?
No full textTitle: Bъзмοжнa πu e euòннa u uяπocmнa Юƨocπaeuя? Ha ƨpaнuyama мeжòy noπumuκama u фuπocoфuяma (Is unitary and integral Yugoslavia possible? On the borderline between politics and philosophy) Originally published: in the magazine Фuπocoфcκu npeƨπeò, IV, 1932, vol. III, pp. 197–227. Language: BulgarianThe excerpts used are from the original, pp. 213–214, 220, 221–223. About the author Dimitar Mihalchev [1880, Lozengrad (Tur. Kirklareli, present-day Turkey) – 1967, Sofia]: philosopher and diplom..
THE IDIOLECT OF REVEREND ECONOMOS DIMITAR POPNIKOLOV PETKANOV
No full textA less studied talented author and brother of the popular fiction writer Konstantin Petkanov, priest
Dimitar wrote in the 1950s. This publication analyzes several parameters of his idiolect: phonetic peculiarities (reflex of ѣ, ѫ,
ъ; epenthetic [l]; reflexes of the [tʃ] [dʒ] groups; phonetic dialectisms; phonetic doublets); morphological paradigm (case
inflections; noun form for number; dualis; nomina collectiva; extended Church Slavonic suffix for adjectives; dialectal and
contracted pronoun forms; a temporal system characterized by high frequency of the verbs in terms of origin, distribution and
stylistic differentiation); lexical specifics (in terms of origin, distribution and stylistic differentiation). Emphasis is placed on
those lexical layers that constitute and ditinguish the author’s language. Hapaxes (produced using morphological and non-
morphological methods), rare words, semantic transponents, dialectisms, colloquial vocabulary and foreign words are studied.
All linguistic phenomena are examined retrospectively and in comparison with the synchronous linguistic situation before and
after the orthographic reform of 1945 in order to highlight the innovative contribution and the mechanisms through which the
author enriched the contemporary Bulgarian vocabulary. Occasionalisms, dialectal and archaic units occur more often in
Petkanov’s poetic works than in his fiction. The source material has been excerpted from Volume 1 (January – March) and
Volume 2 (April – June) of the hagiographic tetralogy “The Year of Our Lord“ and the memoir “A Book about My Brother –
the Writer Konstantin N. Petkanov“, which were published a few years ago by Dimitar Petkanov’s heirs
Imperium Militiae(I)
No full textThe most common idea in Romance studies is that Romans, as practical people, didn’t conduct theoretical research on their country or their army, but they gradually built them both. Meanwhile, they reformed and upgraded it, so that they could respond to the challenges of their age. Moreover, the basis of their research was not explicit doctrines, or prior concepts, in fact they used their own, or the experience of others, to find concrete solutions to daily problems. Just as the Hellenic romanophile Polibius (200-120 B.C), in his work Historia, asks the crucial question: ”Is it possible to have such an unreliable man who is not interested in how the Romans, with their unicipal structure, managed to conquer the whole world”? - in the same way the author of this paper, as much as its content allows, humbly and unpretentiously tries to answer the crucial question: “What kind of military structure
created and defended one of the biggest and most enduring empires in world’s history, and what rules governed it”
Pentesting web: Explotació de vulnerabilitats i vectorització d'atacs a aplicacions i serveis web
No full text[CA] Actualment la ciberseguretat és un dels camps de la informàtica més rellevants amb
més impacte, que estudia com protegir els sistemes exposats a internet de ciberatacs i
robatori d’informació. Hui en dia qualsevol informació tant de caràcter general com de
caràcter personal, està emmagatzemada en les bases de dades dels servidors als quals
s’accedeix diàriament. És molt important per a les organitzacions disposar d’unes mesures i proteccions de seguretat que garanteixen tant la disponibilitat com la integritat i la
confidencialitat de les dades.
Aquest treball pretén situar, detallar i explicar el context tecnològic en què es troba
avui dia la seguretat informàtica, així com mostrar i conscienciar sobre els riscos i les
amenaces existents en internet i la facilitat d’explotar les vulnerabilitats que es poden
presentar a els sistemes. A més, s’enfoca a comprendre els principis bàsics del pentesting
i entendre’n la importància d’aquest.
D’altra banda, l’objectiu principal d’aquest projecte és enumerar, explicar i explotar
les vulnerabilitats web més populars i les principals en els darrers anys, així com les més
crítiques que s’han descobert al llarg del temps amb més rellevància i impacte. Es procedirà a l’explicació tant teòrica com pràctica dels atacs i les vulnerabilitats, i l’explotació
d’aquestes en entorns controlats, per poder entendre’n detalladament el funcionament i
com ha estat possible la seva explotació.
Finalment, es proporcionaran els recursos necessaris per poder desenvolupar atacs, a
més d’eludir possibles sanititzacions que apliquen els servidors web.[ES] Actualmente la ciberseguridad es uno de los campos de la informática más relevantes con mayor impacto, que estudia cómo proteger los sistemas expuestos en internet de
ciberataques y robo de información. Hoy en día cualquier información tanto de carácter
general como de carácter personal, está almacenada en las bases de datos de los servidores a los que se accede diariamente. Es muy importante para las organizaciones disponer
de unas mediadas y protecciones de seguridad que garanticen tanto la disponibilidad
como la integridad y la confidencialidad de los datos.
Este trabajo, pretende situar, detallar y explicar el contexto tecnológico en el que se
encuentra hoy en día la seguridad informática, así como mostrar y concienciar sobre los
riegos y las amenazas existentes en internet y la facilidad de explotar las vulnerabilidades
que se pueden presentar en los sistemas. Además, se enfoca en comprender los principios
básicos del pentesting y entender la importancia de este.
Por otra parte, el objetivo principald de este proyecto, es enumerar, explicar y explotar
las vulnerabilidades web más populares y las principales en los últimos años, así como
las más críticas que se han descubierto a lo largo del tiempo con mayor relevancia e
impacto. Se procederá a la explicación tanto teórica como práctica de los ataques y las
vulnerabilidades, y la explotación de estas en entornos controlados, para poder entender
detalladamente su funcionamiento y como ha sido posible su explotación.
Finalmente se proporcionarán los recursos necesarios para poder desarrollar ataques,
además de eludir posibles sanitizaciones que aplican los servidores web.[EN] Cybersecurity is currently one of the most relevant fields of computer science with
the greatest impact, which studies how to protect systems exposed on the Internet from
cyberattacks and information theft. Nowadays any information, both general and personal, is stored in the databases of the servers that are accessed on a daily basis. It is very
important for organizations to have security measures and protections that guarantee
both the availability and the integrity and confidentiality of the data.
This work, aims to situate, detail and explain the technological context in which computer security is today, as well as to show and raise awareness of the risks and threats
on the Internet and the ease of exploiting vulnerabilities that can occur in the systems. It
also focuses on understanding the basic principles of pentesting and its importance.
On the other hand, the main objective of this project is to list, explain and exploit the
most popular and main web vulnerabilities in recent years, as well as the most critical
ones that have been discovered over time with greater relevance and impact. It will
proceed to the theoretical and practical explanation of the attacks and vulnerabilities,
and the exploitation of these in controlled environments, in order to understand in detail
how they work and how it has been possible to exploit them.
Finally, the necessary resources will be provided to be able to develop attacks, as well
as to circumvent possible sanitizations applied by web servers.Marinov Atanasov, D. (2023). Pentesting web: Explotación de vulnerabilidades y vectorización de ataques a aplicaciones y servicios web. Universitat Politècnica de València. https://riunet.upv.es/handle/10251/196828TFG
About the Concept of Weights of WLTE(k) Estimators
No full text2002 Mathematics Subject Classification: 62F35, 62F15.The concept for trimming and weighing the terms in the Method of Maximum Likelihood gives us a very flexible and useful way to improve the robustness of MLE. Till now the studies were focused mainly on the trimming factor. The theory of d-fullness gives us a powerful method to determine this property in the cases of WLTE, MLE and LTE.
The aim of this study is to consider the weights of the WLTE estimators and to compare the results obtained by using different algorithms for calculating weights.Partially supported by Mathind IST-2000-26015 and by Pro-enbis GTC1-2001-43031
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