Collaborative Retrieval Systems

2010 ◽  
pp. 126-136
Author(s):  
Ying Sun
Keyword(s):  
Information Needs ◽  
Retrieval Systems ◽  
Collaborative Search ◽  
Query Representation ◽  
The Difference ◽  
Query Modification

Collaborative search generally uses previously collected search sessions as a resource to help future users to improve their searching by query modification. The recommendation or automatic extension of the query is generally based on the content of the old sessions, or purely the sequence/order of queries/ texts in a session, or a combination. However, users with the same expressed query may need different information. The difference may not be topic related. This chapter proposes to enrich the context of query representation to incorporate non-topical properties of user information needs, which the authors believe will improve the results of collaborative search.

scholarly journals Geographic Information Retrieval and the World Wide Web: A Match Made in Electronic Space

1997 ◽  
pp. 13-26 ◽  
Author(s):  
David Johnson ◽  
Myke Gluck
Keyword(s):  
Information Retrieval ◽  
World Wide Web ◽  
Information Needs ◽  
World Wide ◽  
Data Retrieval ◽  
Query Languages ◽  
Geographic Information ◽  
Geographic Information Retrieval ◽  
Retrieval Systems ◽  
The World

This article looks at the access to geographic information through a review of information science theory and its application to the WWW. The two most common retrieval systems are information and data retrieval. A retrieval system has seven elements: retrieval models, indexing, match and retrieval, relevance, order, query languages and query specification. The goal of information retrieval is to match the user's needs to the information that is in the system. Retrieval of geographic information is a combination of both information and data retrieval. Aids to effective retrieval of geographic information are: query languages that employ icons and natural language, automatic indexing of geographic information, and standardization of geographic information. One area that has seen an explosion of geographic information retrieval systems (GIR's) is the World Wide Web (WWW). The final section of this article discusses how seven WWW GIR's solve the the problem of matching the user's information needs to the information in the system.

Online Information Retrieval Systems Trending From Evolutionary to Revolutionary Approach

2019 ◽  
pp. 303-317
Author(s):  
Zahid Ashraf Wani ◽  
Huma Shafiq
Keyword(s):  
Information Retrieval ◽  
Information Needs ◽  
Online Information ◽  
Retrieval Systems ◽  
Diverse Species ◽  
Different Types ◽  
The Future ◽  
Information Retrieval Systems ◽  
Information Professionals ◽  
The Web

Nowadays, we all rely on cyberspace for our information needs. We make use of different types of search tools. Some of them have specialization in a specific format or two, while few can crawl a good portion of the web irrespective of formats. Therefore, it is very imperative for information professionals to have thorough understandings of these tools. As such, the chapter is an endeavor to delve deep and highlight various trends in online information retrieval from primitive to modern ones. The chapter also made an effort to envisage the future requirements and expectation keeping in view the ever-increasing dependence on diverse species of information retrieval tools.

scholarly journals Validation of an hourly resolved global aerosol model in answer to solar electricity generation information needs

2013 ◽  
Vol 13 (7) ◽  
pp. 3777-3791 ◽  
Author(s):  
M. Schroedter-Homscheidt ◽  
A. Oumbe
Keyword(s):  
Solar Energy ◽  
Information Needs ◽  
Feedback Loop ◽  
Resource Assessment ◽  
Aerosol Model ◽  
Energy Applications ◽  
The Difference ◽  
Solar Electricity ◽  
Solar Resource ◽  
Generation Information

Abstract. Solar energy applications need global aerosol optical depth (AOD) information to derive historic surface solar irradiance databases from geostationary meteorological satellites reaching back to the 1980's. This paper validates the MATCH/DLR model originating in the climate community against AERONET ground measurements. Hourly or daily mean AOD model output is evaluated individually for all stations in Europe, Africa and the Middle East – an area highly interesting for solar energy applications being partly dominated by high aerosol loads. Overall, a bias of 0.02 and a root-mean-square error (RMSE) of 0.23 are found for daily mean AOD values, while the RMSE increases to 0.28 for hourly mean AOD values. Large differences between various regions and stations are found providing a feedback loop for the aerosol modelling community. The difference in using daily means versus hourly resolved modelling with respect to hourly resolved observations is evaluated. Nowadays state-of-the-art in solar resource assessment relies on monthly turbidity or AOD climatologies while at least hourly resolved irradiance time series are needed by the solar sector. Therefore, the contribution of higher temporally modelled AOD is evaluated.

scholarly journals Sistemas de informação e linguagens documentárias no contexto dos regimes de informação: um exercício conceitual

2006 ◽  
Vol 4 (1) ◽  
pp. 102 ◽  
Author(s):  
Roberto J.G. Unger ◽  
Isa Maria Freire
Keyword(s):  
Information Retrieval ◽  
Information Needs ◽  
Social Dynamics ◽  
Information Sources ◽  
Context Information ◽  
Retrieval Systems ◽  
The Social ◽  
Information Retrieval Systems ◽  
Per Se ◽  
Source Of Information

O artigo apresenta o conceito de regime de informação aos gestores de informação, como contribuição aos processos de adaptação e adequação de sistemas de informação e linguagens documentárias para atender às necessidades informacionais dos usuários. Regimes de informação são modos de produção informacional dominantes numa formação econômico-social que pressupõem, necessariamente, em seu contexto fontes de informação que são disseminadas e exercem influência no contexto social em que estão estabelecidas. Nesse aspecto, as sociedades têm regimes de informação através dos quais organizam a produção material e simbólica e representam a dinâmica das relações sociais. Dentre as diversas formas de manifestações institucionais atuais, destacam-se os sistemas de recuperação da informação, a manifestação per se do fenômeno que move o regime. Os sistemas de recuperação da informação, por sua vez, usam linguagens documentárias para organizar e comunicar a informação organizada nos inúmeros “agregados de informação”, que Barreto (1996) define como “estruturas” que armazenam “estoques de informação” e podem atuar como “agentes”, ou “mediadores”, entre uma fonte de informação e seus usuários. Abstract The article presents the concept of regime of information to information managers as a contribution for the proccesses of adaptation and adjustment of information systems and documentary language to really attend the information needs of users. Regimes of information are dominants modules of informational production in economic-social formation that presuppose, necessarily, in its context information sources wich are disseminated and put in actions influences in the structure which they are established. Under these circumstances, societies have regimes of information through whom organize symbolic and material production and represent the social dynamics relations. In the midst of several kinds of actual institutional manifestations, distinguish the information retrieval systems, the expression per se of the phenomenon that moves the regime. Under this configuration, the information retrieval systems make use of documentary language to organize, describe and communicate provided information in innumerable aggregates of information that, according Barreto (1996), “are structures which harvest “supply of information” and they operate as “agents” or “mediators” between a source of information and their users”.

scholarly journals Is the policy environment for Zambia supportive of a thriving whole-of-government monitoring and evaluation system?

2020 ◽  
Vol 7 (1) ◽  
pp. 542-554 ◽  
Author(s):  
Vincent Kanyamuna
Keyword(s):  
Public Sector ◽  
Evaluation System ◽  
Information Needs ◽  
Monitoring And Evaluation ◽  
Policy Environment ◽  
The Public ◽  
Institutional Structures ◽  
The Difference ◽  
Principles And Standards ◽  
The Right

A whole-of-government monitoring and evaluation system (WoGM&ES) is a robust system that not only provides an integrated and all-encompassing framework of M&E practices, principles and standards to be used throughout government institutional structures, but also functions as an apex-level system for information and draws from the component systems in a framework meant to deliver essential M&E products tailored to satisfy information needs of users [1]. To implement a successful WoGM&ES, a supportive policy environment is crucial for any organisation, governments inclusive. The Zambian government is currently rolling out an ambitious WoGM&ES to strengthen its public sector accountability, feedback and learning functions. It was the objective of this study to investigate the policy environment in Zambia in respect of M&E practice in the public sector. In that regard, particular policy aspects were considered and these included assessing the availability of an M&E plan; whether the difference between M (monitoring) and E (evaluation) was recognised; and if the need for M&E autonomy and impartiality was mentioned. Others were to determine if feedback mechanisms were explicit as well as whether there was integration of M&E results in planning and budgeting processes. The study findings have shown that the policy environment to support a thriving M&E practice in the Zambian public sector was still fragmented and weak. While efforts by government to put policy measures were in place, evidence of transformational shift to implement these measures remained weak. However, it is promising that, in many ways, Zambia was on the right path regarding the introduction and articulation of policy provisions in support of M&E and broadly in promoting a culture of results.     

Document-based approach to improve the accuracy of pairwise comparison in evaluating information retrieval systems

2015 ◽  
Vol 67 (4) ◽  
pp. 408-421
Author(s):  
Sri Devi Ravana ◽  
MASUMEH SADAT TAHERI ◽  
Prabha Rajagopal
Keyword(s):  
Information Retrieval ◽  
Pairwise Comparison ◽  
Current Method ◽  
Statistical Testing ◽  
Test Collection ◽  
Content Type ◽  
Retrieval Systems ◽  
Information Retrieval Systems ◽  
The Mean ◽  
The Difference

Purpose – The purpose of this paper is to propose a method to have more accurate results in comparing performance of the paired information retrieval (IR) systems with reference to the current method, which is based on the mean effectiveness scores of the systems across a set of identified topics/queries. Design/methodology/approach – Based on the proposed approach, instead of the classic method of using a set of topic scores, the documents level scores are considered as the evaluation unit. These document scores are the defined document’s weight, which play the role of the mean average precision (MAP) score of the systems as a significance test’s statics. The experiments were conducted using the TREC 9 Web track collection. Findings – The p-values generated through the two types of significance tests, namely the Student’s t-test and Mann-Whitney show that by using the document level scores as an evaluation unit, the difference between IR systems is more significant compared with utilizing topic scores. Originality/value – Utilizing a suitable test collection is a primary prerequisite for IR systems comparative evaluation. However, in addition to reusable test collections, having an accurate statistical testing is a necessity for these evaluations. The findings of this study will assist IR researchers to evaluate their retrieval systems and algorithms more accurately.

Impact of personality traits on information needs and seeking behavior of LIS students in Pakistan

2019 ◽  
Vol 47 (3) ◽  
pp. 125-134 ◽  
Author(s):  
Shamshad Ahmed ◽  
Farhat Rehman ◽  
Arslan Sheikh
Keyword(s):  
Personality Traits ◽  
Personality Trait ◽  
Information Needs ◽  
Information Science ◽  
Openness To Experience ◽  
Content Type ◽  
Significant Difference ◽  
Seeking Behavior ◽  
The Difference ◽  
Library Professionals

Purpose This paper aims to identify the personality traits (agreeableness, openness to experience, extraversion, conscientiousness and neuroticism) of library and information science (LIS) students in Pakistan. The difference among the personality traits of LIS students toward their information needs and seeking behavior is also analyzed. Design/methodology/approach Two instruments, namely, BFI scale and a self-structured instrument were used to collect the data. Kruskal–Wallis test was applied to find out differences among the personality traits of LIS students toward their information needs and seeking behavior. Findings Findings of the study revealed that out of 320 respondents, 186 possessed openness to experience, while only 7 possessed extraversion personality trait. Moreover, the students having extraversion personality trait were, generally, more concerned toward information needs. On the other hand students having conscientious trait were increasingly more seekers of information. Overall, the conscientiousness was identified as the most suitable personality trait for LIS students. A significant difference was also observed among all the personality traits of LIS students. Practical implications The findings of this study will help in the identification of LIS individual’s personality. The library managers can use these personality traits for the selection of suitable library professionals for their libraries. Originality/value This study can be valuable for the induction of new library professionals and also help managers in assigning the duties based on these personality traits.

scholarly journals Perilaku Penemuan Informasi pada Mahasiswa UKM Sinematografi Universitas Airlangga

2020 ◽  
Vol 11 (1) ◽  
pp. 46
Author(s):  
Lavena Reghita
Keyword(s):  
Information Seeking ◽  
Information Needs ◽  
Sampling Technique ◽  
Information Seeking Behavior ◽  
Film Festivals ◽  
Story Line ◽  
Seeking Behavior ◽  
The Difference ◽  
Conducting Research ◽  
Quantitative Descriptive

Abstract Information seeking behavior among students of Cinematography to produce film work, is motivated by a gap that can lead to information needs based on the interests of students of Cinematography. Information needs of students Cinematography UKM is based on information needs based on environmental factors, namely information relating to the storyline. In addition, most students of Cinematography UKM produce films with the theme of one's experience. To meet these needs, students of UKM Cinematography have obstacles in the process of finding information, this proves that students of UKM Cinematography carry out the process of finding information. This study aims to determine the description of information seeking behavior in students of cinematographic, therefore this study uses the Wilson-Ellis Information Seeking Behavior Model. The method used in this research is quantitative descriptive method using total sampling technique. This study provides results regarding information related to the story line (65.6%) as the needs needed by Sinematogarfi UKM students, with the theme of one's experience (67.2%) which is done by conducting research (50.8%) first. The obstacle that is often experienced by students of UKM Cinematography is the difference of opinion (36.1%) when discussing with other UKM. For the references that are often used by students of UKM Cinematography, most of them are articles (73.8%) that are done at the browsing stage. In addition, seminars, workshops, film operations and film festivals (50.8%) are the preferred access for most students of Cinematography.Keywords: Information Searching Behavior; Information Needs; Student Cinematography AbstakPerilaku pencarian informasi di kalangan mahasiswa Sinematografi untuk menghasilkan karya film, dilatarbelakangi oleh adanya kesenjangan yang dapat menimbulkan kebutuhan informasi berdasarkan minat mahasiswa  Sinematografi. Kebutuhan informasi mahasiswa UKM Sinematografi didasarkan pada kebutuhan informasi yang didasarkan pada faktor lingkungan yaitu informasi yang berkaitan dengan jalan cerita. Selain itu, sebagian besar mahasiswa UKM Sinematografi memproduksi film bertema pengalaman sendiri. Untuk memenuhi kebutuhan tersebut mahasiswa UKM Sinematografi mengalami kendala dalam proses pencarian informasi, hal ini membuktikan bahwa mahasiswa UKM Sinematografi melakukan proses pencarian informasi. Penelitian ini bertujuan untuk mengetahui gambaran perilaku pencarian informasi pada mahasiswa sinematografi, oleh karena itu penelitian ini menggunakan Model Perilaku Pencarian Informasi Wilson-Ellis. Metode yang digunakan dalam penelitian ini adalah metode deskriptif kuantitatif dengan menggunakan teknik total sampling. Penelitian ini memberikan hasil mengenai informasi terkait alur cerita (65,6%) sebagai kebutuhan yang dibutuhkan oleh mahasiswa UKM Sinematogarfi, dengan tema pengalaman seseorang (67,2%) yang dilakukan terlebih dahulu dengan melakukan penelitian (50,8%). Kendala yang sering dialami mahasiswa UKM Sinematografi adalah perbedaan pendapat (36,1%) saat berdiskusi dengan UKM lain. Untuk referensi yang sering digunakan mahasiswa UKM Sinematografi, sebagian besar berupa artikel (73,8%) yang dikerjakan pada tahap browsing. Selain itu, seminar, lokakarya, operasi film dan festival film (50,8%) merupakan akses yang disukai oleh sebagian besar mahasiswa Sinematografi. Kata Kunci: Perilaku Mencari Informasi; Kebutuhan Informasi; Sinematografi Mahasiswa

scholarly journals A Test Collection for Dataset Retrieval in Biodiversity Research

2021 ◽  
Vol 7 ◽  
Author(s):  
Felicitas Löffler ◽  
Andreas Schuldt ◽  
Birgitta König-Ries ◽  
Helge Bruelheide ◽  
Friederike Klan
Keyword(s):  
Information Needs ◽  
Research Field ◽  
Test Collection ◽  
Test Collections ◽  
Biodiversity Research ◽  
Retrieval Systems ◽  
Binary Relevance ◽  
Increasing Demand ◽  
World Information ◽  
Bef China

Searching for scientific datasets is a prominent task in scholars' daily research practice. A variety of data publishers, archives and data portals offer search applications that allow the discovery of datasets. The evaluation of such dataset retrieval systems requires proper test collections, including questions that reflect real world information needs of scholars, a set of datasets and human judgements assessing the relevance of the datasets to the questions in the benchmark corpus. Unfortunately, only very few test collections exist for a dataset search. In this paper, we introduce the BEF-China test collection, the very first test collection for dataset retrieval in biodiversity research, a research field with an increasing demand in data discovery services. The test collection consists of 14 questions, a corpus of 372 datasets from the BEF-China project and binary relevance judgements provided by a biodiversity expert.

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