Adnan Yahya

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Remo Caponi

University of Cologne

Niels Skovgaard-Olsen

Albert-Ludwigs-University of Freiburg

Noor Azli Mohamed Masrop

Kolej Universiti Islam Antarabangsa Selangor

Péter Kakuk

University of Debrecen

Mohamed rachid ouezzani

Université Paul Valéry - Montpellier

Richard Lemarchand

University of Southern California

Joséde-Jesús Lavalle-Martínez

(Benemérita) Universidad Autónoma de Puebla

Nasser Mustapha

University of the West Indies, St. Augustine

Mowadat Rana

University of Health Sciences Lahore

Mohammad Yamin

King AbdulAziz University (KAU) Jeddah, Saudi Arabia

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Papers by Adnan Yahya

Patterns of University Computing in Developing Nations: The West Bank Experience

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A Dataset for Authorship Analysis of Short Modern Arabic Text

Engineering accreditation: A developing nation perspective

Proceedings - Frontiers in Education Conference, Oct 1, 2007

Human Computation Based Platform for Citizen Services in Smart Cities

Springer eBooks, 2022

Data analytics as a tool for smart learning

Modern learning environments are characterized by the pervasive use of technology. Data from elec... more Modern learning environments are characterized by the pervasive use of technology. Data from electronic submissions, student achievement and attendance records, student library/lab interactions, financial profiles, social media style interactions between students and teachers and content processing/delivery tools like TurnItIn, Moodle, and the likes is huge and growing fast. This big data can be exploited to profile learners so that content delivery is tailored for the particular needs and abilities of the individual learner. Educators always sought information about the learner to personalize the learning experience and make content delivery more effective and focused[2]. Learning analytics is concerned with using the multisource data on the learner and the surrounding environment/context for an optimized learning experience that is effective, personalized and less stressful and conducive to improved achievement. Learning analytics is based on applying data mining tools to student data footprint to ascertain user characteristics relevant to the educational process and adjust the teacher-student interaction accordingly[3].

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Accessibility through a hybrid educational system: a case study

In this paper we study the interesting attempt at computerizing academic life at Birzeit Universi... more In this paper we study the interesting attempt at computerizing academic life at Birzeit University in Palestine. The experience maybe unique in many ways: in that the decision to go to an internet-centered education was forced by political circumstance to circumvent the inaccessibility of the (physical) campus; in that the transition was fast without much preparation and took place in an environment with severe limitations on computer equipment and internet bandwidth; in that the goals of the experiment were still being defined at the time when the system was deployed. The experiment is in its infancy and needs continuous monitoring and evaluation. However, even at this stage it is clear that it helped substantially improve and better utilize the IT infrastructure at the university and its surrounding, resulted in an educational system accommodating diverse practices that constitute an adaptation of multiple technologies to the limitations of a resource poor environment as well as higher awareness on part on the university community of the potential and limitations of information technology in general and its educational uses in particular.

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Generalized query answering in disjunctive deductive databases: Procedural and nonmonotonic aspects

Springer eBooks, 1997

Minimal model generation for refined answering of generalized queries in disjunctive deductive databases

Data and Knowledge Engineering, Sep 1, 2000

Generalized queries are defined as sets of clauses in implication form. They cover several tasks ... more

A Goal-Driven Approach to Efficient Query Processing in Disjunctive Databases

Generally, proof procedures based on model generation perform bottom-up processing of clauses. Se... more Generally, proof procedures based on model generation perform bottom-up processing of clauses. Several algorithms for generating (minimal) models for disjunctive theories were advanced in the literature. Used for query answering, bottom-up procedures tend to explore a much larger search space than is strictly needed. On the other hand, top-down processing usually has a more focused search space which can result in more e cient query answering. In this paper we establish a strong connection between model generation and clause derivability that allows us to use a (minimal) model generating procedure for evaluating queries in a top-down fashion. In contrast to other methods our approach requires no extensive rewriting of the input theory and introduces no new predicates. Rather, it is based on a certain duality principle for interpreting logical connectives achieved by reversing the direction of implication connectives in the clauses representing both the theory and the negation of the query. The application of a generic (minimal) model generating procedure to the transformed clause set results in top-down query answering. We explain the reasoning behind the transformation and show how the duality approach can be utilized for re ned query answering by specifying the conditions under which the query becomes derivable from the theory. Our initial testing points to a clear e ciency advantage of the advanced approach as compared to traditional bottom-up processing for the class of positive queries against a disjunctive database.

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Authorship Attribution of Modern Standard Arabic Short Texts

Text data, including short texts, constitute a major share of web content. The availability of th... more Text data, including short texts, constitute a major share of web content. The availability of this data to billions of users triggers frequent plagiarism attacks. Authorship Attribution (AA) seeks to identify the most probable author of a given text based on similarity to the writing style of potential authors. In this paper, we approach AA as a writing style profile generation process, where we group text instances for each author into a single profile. We use Twitter as the source for our short Modern Standard Arabic (MSA) texts. Numerous experiments with various training approaches, tools and features allowed us to settle on a text representation method that relies on text concatenation of Arabic tweets to form chunks, which are then duplicated to reach a precalculated length. These chunks are used to train machine learning models for our 45 author profiles. This allowed us to achieve accuracies up to 99%, which compares favorably with the best results reported in the literature.

Query Evaluation in Partitioned Disjunctive Deductive Databases

International Journal of Cooperative Information Systems, Dec 1, 1994

Query evaluation in disjunctive deductive databases is in general computationally hard. The class... more Query evaluation in disjunctive deductive databases is in general computationally hard. The class of databases for which the process is tractable is severely limited. The complexity of the process depends on the structure of the database as well as on the type of query being evaluated. In this paper we study the issue of simplified query processing in disjunctive deductive databases. We address the possibility of evaluating general queries by independently processing their atomic components and describe the class of databases for which this approach is possible. We also discuss the issue of dividing a disjunctive deductive database into a set of disjoint components then answering queries and computing database completions by combining the results obtained against the individual components. Some practical special cases are considered. The methods developed in this paper can be utilized to introduce parallelism into the query evaluation process.

Deduction in non-Horn databases

Journal of Automated Reasoning, 1985

The class of non-Horn, function-free databases is investigated and several aspects of the problem... more The class of non-Horn, function-free databases is investigated and several aspects of the problem of using theorem proving techniques for such databases are considered. This includes exploring the treatment of negative information and extending the existing method, suggested by Minker, to accept non-unit negative clauses. It is shown that the algorithms based on the existing methods for the treatment of negative information can be highly inefficient. An alternative approach is suggested and a simpler algorithm based on it is given. The problems associated with query answering in non-Horn databases are addressed and compared with those for the Horn case. It is shown that the query evaluation process can be computationaly difficult in the general case. Conditions under which the process is simplified are discussed. The topic of non-Horn general laws is considered and some guidelines are suggested to divide such laws into derivation rules and integrity constraints. The effect of such a division on the query evaluation process is discussed.

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Tools for Internationalizing Higher Education in Developing Countries

The global nature of modern economy is reflecting heavily on higher education. Graduates are freq... more The global nature of modern economy is reflecting heavily on higher education. Graduates are frequently finding employment in areas outside their home countries, and universities are targeting students away from their main campuses and integrating away-from-campus experiences into their programs. Producing graduates able to compete on the global scale is essential to modern tertiary education in all countries. Exposing students to modern trends in technology and diverse approaches to pedagogy figures high on the priority list of prominent schools. Higher educational institutions with limited resources are at a disadvantage here. In poorer countries, sending students out in large numbers may not be practical for economic, political and cultural reasons. In this paper we talk about a suite of initiatives tailored to help bring international education to local students at affordable cost in a developing country context. The measures include internationalizing curriculum and quality assurance practices, offering programs for international students to visit, learn and volunteer in interaction with local students and communities and recruiting prominent scholars from international universities and major corporations to teach courses to local students. Another tool is that of joint programs, graduate and undergraduate, with regional and international schools. The measures can be viewed not only as internationalization tools but also as ways to close the gaps in areas of weaknesses at the national level. Indicators of success for these initiatives include follow-up action such as local student/faculty stays abroad, joint work on capstone projects and graduate degrees, subsequent joint research programs, international accreditation and the level of future interest in similar initiatives. We report in some detail on a suite of initiatives aimed at exposing our students to international education in a cost effective manner; on the academic restructuring introduced to make student and faculty participation in international activities fit well into regular academic commitments, the challenges faced and solutions devised, the degree to which the goals were achieved and the sustainability of the effort in a resource limited environment of a third world country.

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On the problems of information technology management in developing nations

Many developing nations treat information technology as a high priority item in their economic pl... more Many developing nations treat information technology as a high priority item in their economic planning. The pace of computer introduction and the span of computer-based systems are expanding rapidly. This emanates from the realization that information technology has a great potential for the economic development of third world countries. However, it is our view that the often poorly managed computer resources tend to complicate the decision making process due to the introduction of new uncertainties. The problems of the industrial infrastructure, personnel issues, political and social factors are important elements hampering the sound management of information technology resources in many developing nations. In this paper we study the manifestations of information technology mismanagement, the factors hampering the proper management in a developing nation context and point to some of the potential solutions to these problems based on the experience of several nations in this eld.

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Efficient Arabic Query Auto-Completion for Question Answering at a University

2022 International Arab Conference on Information Technology (ACIT), Nov 22, 2022

An Arabic author attribution Datatset

7 authors, 10 Arabic articles per author from electronic sources. http://www.taamolat.com/ Includ... more 7 authors, 10 Arabic articles per author from electronic sources. http://www.taamolat.com/ Included, a directory for each author containing the text of each of the 10 articles and the metadata for that article. It was used as the basis for a paper appearing in ICALP2019, October 16-17, 2019 Nancy/France

Microcomputers and Microelectronics Teaching on the West Bank

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Updates in disjunctive deductive databases : a minimal model based approach

The issue of updates in Disjunctive Deductive Databases (DDDBs) under the minimal model semantics... more The issue of updates in Disjunctive Deductive Databases (DDDBs) under the minimal model semantics is addressed. We consider ground clause addition and deletion in a DDDB. The approach of this paper is based on manipulating the clauses of the theory to produce the required change to the minimal model structure necessary to achieve the clause addition/deletion update. First we deal with ground positive clause updates in ground DDDBs. Later we consider positive, then general, clause addition/deletion in the class of range restricted DDDBs. When we give more than one algorithm for a case we comment o n t h e comparative merits and limitations of each. We use the freedom o ered by the multiple possibilities for achieving an update to select the one with the least change to the minimal model structure of the theory. W e argue that such minimality is desirable if one interprets the minimal model structure as representing the possible states of the modeled world and therefore an update must a ect them minimally.

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Automated Reasoning, Knowledge Representation and Management

Künstliche Intelligenz, 2005

Abstract This overview discusses the connection between two subdisciplines of AI, Automated Reaso... more