Looking for information : a survey on research on information seeking, needs, and behavior (2016)
0.04
0.040284906 = product of:
0.15106839 = sum of:
0.07435924 = weight(_text_:allgemeines in 3803) [ClassicSimilarity], result of:
0.07435924 = score(doc=3803,freq=4.0), product of:
0.16682343 = queryWeight, product of:
5.705423 = idf(docFreq=399, maxDocs=44218)
0.02923945 = queryNorm
0.44573617 = fieldWeight in 3803, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.705423 = idf(docFreq=399, maxDocs=44218)
0.0390625 = fieldNorm(doc=3803)
0.022695798 = product of:
0.045391597 = sum of:
0.045391597 = weight(_text_:bibliothekswesen in 3803) [ClassicSimilarity], result of:
0.045391597 = score(doc=3803,freq=4.0), product of:
0.13033988 = queryWeight, product of:
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.02923945 = queryNorm
0.34825563 = fieldWeight in 3803, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.0390625 = fieldNorm(doc=3803)
0.5 = coord(1/2)
0.045391597 = weight(_text_:bibliothekswesen in 3803) [ClassicSimilarity], result of:
0.045391597 = score(doc=3803,freq=4.0), product of:
0.13033988 = queryWeight, product of:
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.02923945 = queryNorm
0.34825563 = fieldWeight in 3803, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.457672 = idf(docFreq=1392, maxDocs=44218)
0.0390625 = fieldNorm(doc=3803)
0.008621754 = product of:
0.017243508 = sum of:
0.017243508 = weight(_text_:information in 3803) [ClassicSimilarity], result of:
0.017243508 = score(doc=3803,freq=24.0), product of:
0.051329207 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.02923945 = queryNorm
0.3359395 = fieldWeight in 3803, product of:
4.8989797 = tf(freq=24.0), with freq of:
24.0 = termFreq=24.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0390625 = fieldNorm(doc=3803)
0.5 = coord(1/2)
0.26666668 = coord(4/15)
- Abstract
- The 4th edition of this popular and well-cited text is now co-authored, and includes significant changes from earlier texts. Presenting a comprehensive review of over a century of research on information behavior (IB), this book is intended for students in information studies and disciplines interested in research on information activities. The initial two chapters introduce IB as a multi-disciplinary topic, the 3rd provides a brief history of research on information seeking. Chapter four discusses what is meant by the terms "information" and "knowledge. "Chapter five discusses "information needs," and how they are addressed. The 6th chapter identifies many related concepts. Twelve models of information behavior (expanded from earlier editions) are illustrated in chapter seven. Chapter eight reviews various paradigms and theories informing IB research. Chapter nine examines research methods invoked in IB studies and a discussion of qualitative and mixed approaches. The 10th chapter gives examples of IB studies by context. The final chapter looks at strengths and weaknesses, recent trends, and future development.
- BK
- 06.30 (Bibliothekswesen / Dokumentationswesen: Allgemeines)
- Classification
- 06.30 (Bibliothekswesen / Dokumentationswesen: Allgemeines)
- RSWK
- Information Retrieval
- Series
- Studies in information
- Subject
- Information Retrieval
Horch, A.; Kett, H.; Weisbecker, A.: Semantische Suchsysteme für das Internet : Architekturen und Komponenten semantischer Suchmaschinen (2013)
0.00
0.0038375615 = product of:
0.02878171 = sum of:
0.023803938 = weight(_text_:und in 4063) [ClassicSimilarity], result of:
0.023803938 = score(doc=4063,freq=18.0), product of:
0.06480535 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.02923945 = queryNorm
0.3673144 = fieldWeight in 4063, product of:
4.2426405 = tf(freq=18.0), with freq of:
18.0 = termFreq=18.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.0390625 = fieldNorm(doc=4063)
0.0049777715 = product of:
0.009955543 = sum of:
0.009955543 = weight(_text_:information in 4063) [ClassicSimilarity], result of:
0.009955543 = score(doc=4063,freq=8.0), product of:
0.051329207 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.02923945 = queryNorm
0.19395474 = fieldWeight in 4063, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0390625 = fieldNorm(doc=4063)
0.5 = coord(1/2)
0.13333334 = coord(2/15)
- Abstract
- In der heutigen Zeit nimmt die Flut an Informationen exponentiell zu. In dieser »Informationsexplosion« entsteht täglich eine unüberschaubare Menge an neuen Informationen im Web: Beispielsweise 430 deutschsprachige Artikel bei Wikipedia, 2,4 Mio. Tweets bei Twitter und 12,2 Mio. Kommentare bei Facebook. Während in Deutschland vor einigen Jahren noch Google als nahezu einzige Suchmaschine beim Zugriff auf Informationen im Web genutzt wurde, nehmen heute die u.a. in Social Media veröffentlichten Meinungen und damit die Vorauswahl sowie Bewertung von Informationen einzelner Experten und Meinungsführer an Bedeutung zu. Aber wie können themenspezifische Informationen nun effizient für konkrete Fragestellungen identifiziert und bedarfsgerecht aufbereitet und visualisiert werden? Diese Studie gibt einen Überblick über semantische Standards und Formate, die Prozesse der semantischen Suche, Methoden und Techniken semantischer Suchsysteme, Komponenten zur Entwicklung semantischer Suchmaschinen sowie den Aufbau bestehender Anwendungen. Die Studie erläutert den prinzipiellen Aufbau semantischer Suchsysteme und stellt Methoden der semantischen Suche vor. Zudem werden Softwarewerkzeuge vorgestellt, mithilfe derer einzelne Funktionalitäten von semantischen Suchmaschinen realisiert werden können. Abschließend erfolgt die Betrachtung bestehender semantischer Suchmaschinen zur Veranschaulichung der Unterschiede der Systeme im Aufbau sowie in der Funktionalität.
- RSWK
- Suchmaschine / Semantic Web / Information Retrieval
Suchmaschine / Information Retrieval / Ranking / Datenstruktur / Kontextbezogenes System
- Subject
- Suchmaschine / Semantic Web / Information Retrieval
Suchmaschine / Information Retrieval / Ranking / Datenstruktur / Kontextbezogenes System