Approaches To Implement And Evaluate Aggregated Search
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Approaches To Implement And Evaluate Aggregated Search
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Author : Arlind Kopliku
language : en
Publisher:
Release Date : 2011
Approaches To Implement And Evaluate Aggregated Search written by Arlind Kopliku and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Aggregated search or aggregated retrieval can be seen as a third paradigm for information retrieval following the Boolean retrieval paradigm and the ranked retrieval paradigm. In the first two, we are returned respectively sets and ranked lists of search results. It is up to the time-poor user to scroll this set/list, scan within different documents and assemble his/her information need. Alternatively, aggregated search not only aims the identification of relevant information nuggets, but also the assembly of these nuggets into a coherent answer. In this work, we present at first an analysis of related work to aggregated search which is analyzed with a general framework composed of three steps: query dispatching, nugget retrieval and result aggregation. Existing work is listed aside different related domains such as relational search, federated search, question answering, natural language generation, etc. Within the possible research directions, we have then focused on two directions we believe promise the most namely: relational aggregated search and cross-vertical aggregated search. * Relational aggregated search targets relevant information, but also relations between relevant information nuggets which are to be used to assemble reasonably the final answer. In particular, there are three types of queries which would easily benefit from this paradigm: attribute queries (e.g. president of France, GDP of Italy, major of Glasgow, ...), instance queries (e.g. France, Italy, Glasgow, Nokia e72, ...) and class queries (countries, French cities, Nokia mobile phones, ...). We call these queries as relational queries and we tackle with three important problems concerning the information retrieval and aggregation for these types of queries. First, we propose an attribute retrieval approach after arguing that attribute retrieval is one of the crucial problems to be solved. Our approach relies on the HTML tables in the Web. It is capable to identify useful and relevant tables which are used to extract relevant attributes for whatever queries. The different experimental results show that our approach is effective, it can answer many queries with high coverage and it outperforms state of the art techniques. Second, we deal with result aggregation where we are given relevant instances and attributes for a given query. The problem is particularly interesting for class queries where the final answer will be a table with many instances and attributes. To guarantee the quality of the aggregated result, we propose the use of different weights on instances and attributes to promote the most representative and important ones. The third problem we deal with concerns instances of the same class (e.g. France, Germany, Italy ... are all instances of the same class). Here, we propose an approach that can massively extract instances of the same class from HTML lists in the Web. All proposed approaches are applicable at Web-scale and they can play an important role for relational aggregated search. Finally, we propose 4 different prototype applications for relational aggregated search. They can answer different types of queries with relevant and relational information. Precisely, we not only retrieve attributes and their values, but also passages and images which are assembled into a final focused answer. An example is the query ``Nokia e72" which will be answered with attributes (e.g. price, weight, battery life ...), passages (e.g. description, reviews ...) and images. Results are encouraging and they illustrate the utility of relational aggregated search. * The second research direction that we pursued concerns cross-vertical aggregated search, which consists of assembling results from different vertical search engines (e.g. image search, video search, traditional Web search, ...) into one single interface. Here, different approaches exist in both research and industry. Our contribution concerns mostly evaluation and the interest (advantages) of this paradigm. We propose 4 different studies which simulate different search situations. Each study is tested with 100 different queries and 9 vertical sources. Here, we could clearly identify new advantages of this paradigm and we could identify different issues with evaluation setups. In particular, we observe that traditional information retrieval evaluation is not the fastest but it remains the most realistic. To conclude, we propose different studies with respect to two promising research directions. On one hand, we deal with three important problems of relational aggregated search following with real prototype applications with encouraging results. On the other hand, we have investigated on the interest and evaluation of cross-vertical aggregated search. Here, we could clearly identify some of the advantages and evaluation issues. In a long term perspective, we foresee a possible combination of these two kinds of approaches to provide relational and cross-vertical information retrieval incorporating more focus, structure and multimedia in search results.
Digital Technologies And Applications
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Author : Saad Motahhir
language : en
Publisher: Springer Nature
Release Date : 2022-05-07
Digital Technologies And Applications written by Saad Motahhir and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-07 with Technology & Engineering categories.
This book presents Volume 1 of selected research papers presented at the Second International Conference on Digital Technologies and Applications (ICDTA 22), held at Sidi Mohamed Ben Abdellah University, Fez, Morocco, on January 28–29, 2022. This book highlights the latest innovations in digital technologies as: artificial intelligence, Internet of Things, embedded systems, network technology, information processing and their applications in several areas as hybrid vehicles, renewable energy, mechatronics, medicine... This book will encourage and inspire researchers, industry professionals, and policymakers to put these methods into practice.
Aggregated Search
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Author : Jaime Arguello
language : en
Publisher:
Release Date : 2017-03-06
Aggregated Search written by Jaime Arguello and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-06 with Computers categories.
A comprehensive summary of the research in aggregated search. It also surveys different evaluation methodologies for aggregated search and discusses prior user studies aimed at better understanding how users behave with aggregated search interfaces. It concludes by reviewing different advanced topics in aggregated search.
Design And Evaluation Of An E Learning Artefact For The Implementation Of Sap S 4hana
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Author : Felix Garayo Maiztegui
language : en
Publisher: Springer Nature
Release Date : 2023-02-21
Design And Evaluation Of An E Learning Artefact For The Implementation Of Sap S 4hana written by Felix Garayo Maiztegui and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-02-21 with Business & Economics categories.
The objective of this study is to create a new e-learning artefact for SAP S/4 Hana training purposes. Based on Design Science Research, a new prototype of an e-learning artefact has been developed. The prototype is grounded on didactic and information systems theories, as well as models. The aim of this new prototype is to transfer knowledge of business processes with the new Enterprise Resource Planning (ERP) SAP S/4 HANA in an effective and efficient way. The study is validated through an experiment with a treatment and a control group. While the treatment group learns with the new e-learning artefact, the control group keeps with the existing conventional training. Results show that the treatment group have significantly less dropouts than the control group, and that the treatment group could also finalize the SAP S/4 Hana exercises in less time. This study shows also how companies can benefit significantly using the same approach through a set of guidelines.
Database Systems For Advanced Applications
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Author : Lizhu Zhou
language : en
Publisher: Springer Science & Business Media
Release Date : 2005-04-04
Database Systems For Advanced Applications written by Lizhu Zhou and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-04-04 with Computers categories.
This book constitutes the refereed proceedings of the 10th International Conference on Database Systems for Advanced Applications, DASFAA 2005, held in Beijing, China in April 2005. The 67 revised full papers and 15 revised short papers presented were carefully reviewed and selected from 302 submissions. The papers are organized in topical sections on bioinformatics, water marking and encryption, XML query processing, XML coding and metadata management, data mining, data generation and understanding, music retrieval, query processing in subscription systems, extending XML, Web services, high-dimensional indexing, sensor and stream data processing, database performance, clustering and classification, data warehousing, data mining and Web data processing, moving object databases, temporal databases, semantics, XML update and query patterns, join processing and view management, spatial databases, enhancing database services, recovery and correctness, and XML databases and indexing.
Operation Management
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Author : B. Mahadevan
language : en
Publisher: Pearson Education India
Release Date : 2009
Operation Management written by B. Mahadevan and has been published by Pearson Education India this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Business & Economics categories.
Qualitative Research Evaluation Methods
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Author : Michael Quinn Patton
language : en
Publisher: SAGE Publications
Release Date : 2014-10-29
Qualitative Research Evaluation Methods written by Michael Quinn Patton and has been published by SAGE Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-29 with Social Science categories.
Drawing on more than 40 years of experience conducting applied social science research and program evaluation, author Michael Quinn Patton has crafted the most comprehensive and systematic book on qualitative research and evaluation methods, inquiry frameworks, and analysis options available today. Now offering more balance between applied research and evaluation, this Fourth Edition of Qualitative Research & Evaluation Methods illuminates all aspects of qualitative inquiry through new examples, stories, and cartoons; more than a hundred new summarizing and synthesizing exhibits; and a wide range of new highlight sections/sidebars that elaborate on important and emergent issues. For the first time, full case studies are included to illustrate extended research and evaluation examples. In addition, each chapter features an extended "rumination," written in a voice and style more emphatic and engaging than traditional textbook style, about a core issue of persistent debate and controversy.
Program Evaluation For Social Workers
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Author : Richard M. Grinnell
language : en
Publisher: Oxford University Press
Release Date : 2012-02-15
Program Evaluation For Social Workers written by Richard M. Grinnell and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02-15 with Social Science categories.
An eminently approachable and practical introduction to case- and program-level evaluation techniques.
Metaheuristics For Production Scheduling
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Author : Bassem Jarboui
language : en
Publisher: John Wiley & Sons
Release Date : 2013-06-12
Metaheuristics For Production Scheduling written by Bassem Jarboui and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-12 with Technology & Engineering categories.
This book describes the potentialities of metaheuristics for solving production scheduling problems and the relationship between these two fields. For the past several years, there has been an increasing interest in using metaheuristic methods to solve scheduling problems. The main reasons for this are that such problems are generally hard to solve to optimality, as well as the fact that metaheuristics provide very good solutions in a reasonable time. The first part of the book presents eight applications of metaheuristics for solving various mono-objective scheduling problems. The second part is itself split into two, the first section being devoted to five multi-objective problems to which metaheuristics are adapted, while the second tackles various transportation problems related to the organization of production systems. Many real-world applications are presented by the authors, making this an invaluable resource for researchers and students in engineering, economics, mathematics and computer science. Contents 1. An Estimation of Distribution Algorithm for Solving Flow Shop Scheduling Problems with Sequence-dependent Family Setup Times, Mansour Eddaly, Bassem Jarboui, Radhouan Bouabda, Patrick Siarry and Abdelwaheb Rebaï. 2. Genetic Algorithms for Solving Flexible Job Shop Scheduling Problems, Imed Kacem. 3. A Hybrid GRASP-Differential Evolution Algorithm for Solving Flow Shop Scheduling Problems with No-Wait Constraints, Hanen Akrout, Bassem Jarboui, Patrick Siarry and Abdelwaheb Rebaï. 4. A Comparison of Local Search Metaheuristics for a Hierarchical Flow Shop Optimization Problem with Time Lags, Emna Dhouib, Jacques Teghem, Daniel Tuyttens and Taïcir Loukil. 5. Neutrality in Flow Shop Scheduling Problems: Landscape Structure and Local Search, Marie-Eléonore Marmion. 6. Evolutionary Metaheuristic Based on Genetic Algorithm: Application to Hybrid Flow Shop Problem with Availability Constraints, Nadia Chaaben, Racem Mellouli and Faouzi Masmoudi. 7. Models and Methods in Graph Coloration for Various Production Problems, Nicolas Zufferey. 8. Mathematical Programming and Heuristics for Scheduling Problems with Early and Tardy Penalties, Mustapha Ratli, Rachid Benmansour, Rita Macedo, Saïd Hanafi, Christophe Wilbaut. 9. Metaheuristics for Biobjective Flow Shop Scheduling, Matthieu Basseur and Arnaud Liefooghe. 10. Pareto Solution Strategies for the Industrial Car Sequencing Problem, Caroline Gagné, Arnaud Zinflou and Marc Gravel. 11. Multi-Objective Metaheuristics for the Joint Scheduling of Production and Maintenance, Ali Berrichi and Farouk Yalaoui. 12. Optimization via a Genetic Algorithm Parametrizing the AHP Method for Multicriteria Workshop Scheduling, Fouzia Ounnar, Patrick Pujo and Afef Denguir. 13. A Multicriteria Genetic Algorithm for the Resource-constrained Task Scheduling Problem, Olfa Dridi, Saoussen Krichen and Adel Guitouni. 14. Metaheuristics for the Solution of Vehicle Routing Problems in a Dynamic Context, Tienté Hsu, Gilles Gonçalves and Rémy Dupas. 15. Combination of a Metaheuristic and a Simulation Model for the Scheduling of Resource-constrained Transport Activities, Virginie André, Nathalie Grangeon and Sylvie Norre. 16. Vehicle Routing Problems with Scheduling Constraints, Rahma Lahyani, Frédéric Semet and Benoît Trouillet. 17. Metaheuristics for Job Shop Scheduling with Transportation, Qiao Zhang, Hervé Manier, Marie-Ange Manier. About the Authors Bassem Jarboui is Professor at the University of Sfax, Tunisia. Patrick Siarry is Professor at the Laboratoire Images, Signaux et Systèmes Intelligents (LISSI), University of Paris-Est Créteil, France. Jacques Teghem is Professor at the University of Mons, Belgium.
Methods Of Evaluating Educational Technology
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Author : Walt Heinecke
language : en
Publisher: IAP
Release Date : 2001-09-01
Methods Of Evaluating Educational Technology written by Walt Heinecke and has been published by IAP this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-09-01 with Education categories.
This volume gathers some of the methods being developed by evaluators from university settings and the private sector. While providing models and methods, these authors also raise larger questions, such as: "How can schools meet the challenge of educating all children without being limited by the educational legacy of a 'one size fits all' curriculum and normative testing?" More than documenting an "apprenticeship to gadgetry," evaluators are seeking to measure meaningful learning and changes in teaching - investigating approaches that are not possible or that are less accessible when students are in traditional classrooms without technology. In this first volume of the series Research Methods for Educational Technology (RMET) the contributing authors draw upon examples of their work evaluating the implementation and development of educational technology as well as the impact of policies and programs in this field. Within this volume several authors have written about the implementation and evaluation of technology across cultures and national boundaries, pointing to an area of research that will rapidly expand in this decade. The concern for meeting the needs of policymakers is also apparent in several of these chapters, but there is tension between providing them with positive results to support their efforts and reexamining the questions they are asking and how these questions are developed. We know that evaluation is not the extended arm of public relations, and yet it becomes clear that evaluators are often asked to demonstrate a project "is successful" on the threat that the funding will be cut. While this decision-making process fits the timetable of the fiscal year, it does not acknowledge that evaluation can be formative and strengthen programs. This timetable also ignores the investment of time that is needed when implementing innovations like the Internet into teaching and learning. Many of the authors included in this volume write from the context of evaluating federally-funded programs, and they provide valuable insight for future projects which are created and evaluated at the state-level. As technology initiatives are developed and funded outside of the federal arena, more evaluators will be called upon. From approaches developed from federally-funded projects, we can build upon these methods and models for evaluation within regional projects to answer questions related to budgets and accountability. As we answer these immediate questions, we can move forward to examine the long-term impact of technology, and the possibility that exercises in conformity will replace the adventure of human enlightenment for our children.