© Tefko Saracevic, Rutgers University adapted for sectoin 21 PRINCIPLES OF SEARCHING 17:610:530 (02) Paul Kantor SCILS, Rm. 307 (732) /Ext Ying Sun SCILS, Rm. 214

© Tefko Saracevic, Rutgers University adapted for sectoin 22 Communication  Course web site: ~kantor/t/530 Û posted will be exercises, lecture slides, tutorials, information etc. Û download, copy print … u Course Listserve (to the whole class - must subscribe)

© Tefko Saracevic, Rutgers University adapted for sectoin 23 Accounts u DIALOG: Û user name: no. from class list Û password: scils u Class listserve Û subscribe by sending an to edu Û Leave subject line empty. Û Message: Subscribe u Your acct Û (see asstn in 119 if not sure) Û password: your SS no. (no spaces)

© Tefko Saracevic, Rutgers University adapted for sectoin 24 Student groups u Form groups of four colleagues) Û each group will have a number Û work out a method for communication, exchanges u Groups will work together in the lab & should cooperate as to exercises Û Each one should present your own exercise & other results. u Pick up missed instructions, assignments from the group

© Tefko Saracevic, Rutgers University adapted for sectoin 25 Course objectives Integrated understanding of: u Content: content structure of information resources - databases, Web, reference - as they affect searching u Systems: Models of information retrieval (IR) systems, Web search engines, & reference services u Human-human interaction: User information seeking as the context for searching; mediation & interviewing u Human-computer interaction: Principles for effective searching & variations in search strategies & tactics u Results: Alternatives in presentation of results to users; evaluation of results

© Tefko Saracevic, Rutgers University adapted for sectoin 26 In order to search you need an understanding of: Content: What is in the sources? How is it organized? Systems: Where? What kinds? IR, Web, References... Human-human interaction: How? You and the user Human-computer interaction: How? You and the computer Results: What & how to present; evaluate

© Tefko Saracevic, Rutgers University adapted for sectoin 27 Symbolically... ? Content System HHI HCI Results

© Tefko Saracevic, Rutgers University adapted for sectoin 28 What will the course NOT do? u Create professional searchers out of you u Make you an expert on databases, systems, Web engines

© Tefko Saracevic, Rutgers University adapted for sectoin 29 What will the course DO? u Provide you with a practical & theoretical foundation and framework on basis of which you can then: Û develop into a professional searcher or technical assistant to users Û grow & evolve with the field Û adjust to inevitable changes in the world of searching Û eventually, depending on your other courses & life-long learning, become an expert

© Tefko Saracevic, Rutgers University adapted for sectoin 210 Mix u The course is a mix of Û theory Û experimentation Û practice u Why theory? Û Base for further understanding & professional development Û nothing more practical than a good theory

© Tefko Saracevic, Rutgers University adapted for sectoin 211 Topics covered 1. Overview Theme A: Structure of content 2. Databases; structure of records 3. Structure of indexes; vocabularies Theme B: Systems for searching 4. IR models; Boolean & ranking 5. Web search engines. Reference Theme C: Human-human interaction 6. Information seeking by users 7. Intermediaries; mediation

© Tefko Saracevic, Rutgers University adapted for sectoin 212 Topics (cont.) Theme D: Human-computer interaction 8. Interfaces; navigation, browsing 9. Effective search strategies & tactics Theme E: Results 10. Presentation & display of results 11. Evaluation results & projects

© Tefko Saracevic, Rutgers University adapted for sectoin 213 Course structure 1. Lectures 2. Required readings (bibliography, book & packet) with Summaries - per schedule (40% of grade) 3. Laboratory exercises 4. Discussion 5. Term project (60% of grade)

© Tefko Saracevic, Rutgers University adapted for sectoin 214 Summaries u Brief critical review u Relate to (points added for this): Û relevant personal, professional experiences with library & information services; examples Û translation/implication for practice Û questions for discussion, and/or Û other readings, topics, courses, project, exercise u Follow APA format u MUST have prescribed heading (points deducted if not)

© Tefko Saracevic, Rutgers University adapted for sectoin 215 Laboratory exercises u Using DIALOG, LexisNexis, Web search engines Û Search for answers for given questions Û Use a variety of tactics & features u Homework exercises as per schedule u Work cooperatively in groups

© Tefko Saracevic, Rutgers University adapted for sectoin 216 Term project u Select a specific user with an inf. need to do an online search u Interview the user (if necessary several times) u Construct a user model u Select databases for searching u Construct search strategies & conduct searching - reiterate u Organize results for presentation u Present results to user; evaluate u Write a technical report

© Tefko Saracevic, Rutgers University adapted for sectoin 217 Technical report u Selection of user: who? u User question & model Û what task? how much knows? what topics? terminology? priorities? u Mode & results of interviews u Summary of search tactics & approaches, dynamics u Changes in user model, user definition of problem u Changes in searching & you u Evaluation -what does or does not work? What effects of decisions? Û What would you do differently?

© Tefko Saracevic, Rutgers University adapted for sectoin 218 Exercises 1a & 1b DIALOG tutorials LEARN & PRACTICE: u Contents of databases u Structure of databases & records - BLUE SHEETS u Basic search commands u Basic output commands u Logical operators, execution u Truncation u Searching in fields u DIALINDEX; OneSearch

© Tefko Saracevic, Rutgers University adapted for sectoin 219