G. Brajnik, S. Mizzaro, and C. Tasso, "Evaluating User Interfaces to Information Retrieval Systems: A Case Study on User Support," Proc. 19th Ann. Int'l ACM SIGIR Conf. Research and Development in Information Retrieval (SIGIR'96), pp. 128-136, Aug. 1996.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....focused on measuring different retrieval techniques, methods and tools as solutions to the IR interaction problem. Studies in user behaviour and individual differences 2 (Egan, 1988; Borgman, 1989, Kuhlthau, 1993) and the intermediary user interface in information retrieval (Marchionini, 1995, Brajnik et al. 1996) have recently proved that this area is of great interest. Questions that have attracted growing interest are: How do we make a better adaptation to users different preferences such as their tasks, goals, abilities, individual differences and how to support these in the design of the user ....

Brajnik, G., Mizzaro, S and Tasso, C. (1996), Evaluating user interfaces to information retrieval systems. A case study on user support. In: Frei, H-P., Harman, D., Schäuble, P., and Wilkinson, R. (eds.). Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR'96).

....learning the system more than outweigh the time spent learning it. Novice users may find such systems puzzling, but we do not feel that diminishes the value of a targeted system. Further, other researchers are investigating the usefulness of systems for users with little to no searching experience[23, 3]. On the other hand, we have no interest in building systems that are inherently difficult to use. Indeed, the better and easier to use a system s underlying design is, the more complexity we can introduce without overburdening the user[21] For that reason, we are interested in basic issues in ....

G. Brajnik, S. Mizzaro, and C. Tasso. Evaluating user interfaces to information retrieval systems: A case study on user support. In Proceedings of the 19th annual international ACM SIGIR conference on research and development in information retrieval, pages 128--136, Zurich, 1996. Association for Computing Machinery.

No context found.

Brajnik, G., Mizzaro, S., and Tasso, C.: Evaluating user interfaces to information retrieval systems: a case study on user support. Proceedings of SIGIR'96, Zurich, 128-136 (1996).

....individual needs, and, more generally, it enables a more effective and efficient transfer of the published information from the authors to the most appropriate readers. At the University of Udine, we have been investigating the issue of personalization in information access for several years [1, 8, 9, 10, 20, 22]. In this paper, we present the most recent results concerned with the application of adaptive and personalized information access to the electronic publishing field, and more specifically in scholarly publishing. We claim that personalization is needed and useful in information access, and ....

....adopted for organizing the searching process (see a survey of this issue in [9] We propose to use ephemeral personalization techniques to provide both strategic and terminological support to IR users. We have been doing research on this issue for several years. We implemented the FIRE prototype [8] that, by means of thesauri, is capable of suggesting to the users of a boolean IR system alternative terms to better (re)formulate their information needs. After a carefully designed laboratory experiment involving 45 participants, we had evidence that terminological help alone is useful, but ....

G. Brajnik, S. Mizzaro, C. Tasso, Evaluating User Interfaces to Information Retrieval Systems: a Case Study on User Support, Proc. of the 19th Annual International ACM SIGIR Conference, Zurich, CH, 1996, 128-136.

....pu o offrire all utente e un esperimento volto a valutare l efficacia dei diversi aiuti e la migliore modalit a con cui offrirli. Dato il limitato spazio a disposizione, ci limitiamo ad esporre una breve sintesi dell esperimento e dei risultati ottenuti; maggiori dettagli sono disponibili in [4]. 2 Tipi e modalit a di supporto all utente Proponiamo di distinguere i seguenti tipi di aiuto che un interfaccia intelligente per un SIR pu o offire all utente: ffl aiuto concettuale, per permettere all utente di superare problemi che possono sorgere durante lo svolgimento della ricerca, quali ....

G. Brajnik, S. Mizzaro, and C. Tasso. Evaluating user interfaces to information retrieval systems: A case study on user support. Accettato al congresso ACM SIGIR'96, 19th International Conference on Research and Developments in Information Retrieval, Zurich, Switzerland, August, 1996.

.... where no documents have been retrieved, users may add new AND ed terms, an operation which can only decrease the number of retrieved documents [17] Many of the previous observations were also confirmed by an experiment carried out on a user interface for a boolean information retrieval system [6]. Analysis of the behavior of participants showed that users lack an overall strategic view of the search. Less successful users are bound to a wrong and fixed conceptualization of the information need and use a limited portfolio of actions. For instance, they keep adding removing modifying terms ....

.... include getting into dead ends (no hit situation, no appropriate terms) getting into a too many hits situation, failing to get useful results, looping around a cycle of ineffective states (for example by repeatedly tweaking with addition removal of query terms, one of the problems observed in [6]) Recoverability is improved, for example, by constructive strategic suggestions provided by the system to the user giving an indication of a tactic or stratagem that could be used to overcome the problem. ffl consistency, that is likeness of system behavior in similar situations. For example, ....

G. Brajnik, S. Mizzaro, and C. Tasso. Evaluating user interfaces to information retrieval systems: A case study on user support. In SIGIR96, 19th International Conference on Research and Development in Information Retrieval, pages 128--136, Zurich, Switzerland, 18--22 August 1996.

..... PIN Request Query perc expr form form 1 q 0 q n expr 1 r m r 0 r 1 q 2 RIN pin p rin 0 Figure 4: The dynamic interaction user IR system. The above mentioned entities of the first two dimensions can be decomposed into the following three components (fourth dimension) (Brajnik et al. 1996): ffl Topic, that refers to the subject area interesting for the user. For example, the concept of relevance in information science ; ffl Task, that refers to the activity that the user will execute with the retrieved documents. For example: to write a survey paper on . or to prepare a ....

.... fTopic,Task,Contextg) finding no significant differences; ffl Saracevic et al. 1988; 1988a; 1988b) study rel(Surrogate; Request; fTopicg) and rel (Surrogate; RIN; fTopic,Task,Contextg) called relevance and utility , respectively; ffl In the experimental evaluation of the FIRE prototype (Brajnik et al. 1996; Mizzaro, 1997a) two different types of relevance are used, namely: rel(Surrogate; Request; fTopicg) and rel(Surrogate; Request; fTopic,Taskg) 4.2 Towards more effective IR systems The framework presented in Section 2 can be used to design more effective IR systems for end users, as shown in ....

[Article contains additional citation context not shown here]

Brajnik, G., Mizzaro, S. and Tasso, C. (1996). Evaluating user interfaces to information retrieval systems: A case study on user support, SIGIR96, 19th International Conference on Research and Development in Information Retrieval, Zurich, Switzerland, pp. 128--136.

.... [76] EUROMATH 1989 [44] OFFICER 1989 [21] KIWI 1989 [39] BOOKHOUSE 1989 [43] OAK 1989 [47] MOSS 1989 [54] ESOCKS 1989 [84] IANI 1989 [85] Gauch ( 1989 90 [30, 31, 32] ISIR 1990 [60] SIMPR 1990 [67] RADA 1990 [71] AI STARS 1990 93 [1, 2] INQUERY 1992 [14] LYBERWORLD 1994 [35] FIRE 1995 96 [11, 12] The selected systems, in temporal order, are: CITE allows the user to express his need as a natural language request. The system translates the request into a query for MEDLINE (a medical database) and returns a ranked set of documents. It also provides query expansion through relevance ....

....by the system, hypertext like network of concepts and documents, evaluate documents, and insert new terms in the query. EUROMATH tries to model the need of the users in a more complete way than the usual one. It asks to the users (mathematicians) besides the classical topic aspect of user s need [11, 12, 50, 51], the type of the need (verificative, similar to a previous one, conscious topical, ill defined) This information, that is continuously verified during the interaction on the basis of user s behavior, and eventually updated (by either the user or the system) is used for choosing the best kind of ....

[Article contains additional citation context not shown here]

G. Brajnik, S. Mizzaro, and C. Tasso. Evaluating user interfaces to information retrieval systems: A case study on user support. To appear in ACM SIGIR'96, 1996.

....need, and so on. Therefore, a relevance seems a point in a two dimensional space. But these are not all the possible relevances, since two more dimensions have to be taken into account. First, the above mentioned entities can be decomposed into the following three components (third dimension) [5,6,7]: 58 Problem Perception Information need Request Query Expression Formalisation Fig. 1: Problem, information need, request, and query. Topic, that refers to the subject area to which the user is interested. For example, the concept of relevance in information science ; Task, that refers to ....

G. Brajnik, S. Mizzaro, and C. Tasso, 1996. "Evaluating User Interfaces to Information Retrieval Systems: A Case Study on User Support". In Proceedings of the SIGIR96, Zurich, August 1996, pp. 128-136 .

No context found.

Brajnik, G., Mizzaro, S., and Tasso, C. (1996). Evaluating user interfaces to information retrieval systems: A case study of user support. In Proceedings of the Nineteenth Annual ACM/SIGIR Conference on Research and Development in Information Retrieval, 128--136.

....understanding the theorem. 5 Thus, in the case of a muddled need, the standard so called Automatic Query Expansion techniques [24] based on the assumption that the first expression of the user need is a correct one) seem not adequate, and Interactive Query Expansion ones (see for instance [8, 9]) seem mandatory. 5 Relevance Relevance [15, 35, 36] is another concept, crucial in IR (and information science in general) and lacking a final definition, that can be defined and analyzed on the basis of the scenario presented in the previous sections. The term relevance has already been used ....

G. Brajnik, S. Mizzaro, and C. Tasso. Evaluating user interfaces to information retrieval systems: A case study on user support. To appear, accepted for the publication in ACM SIGIR'96, 1996.

No context found.

G. Brajnik, S. Mizzaro, and C. Tasso, "Evaluating User Interfaces to Information Retrieval Systems: A Case Study on User Support," Proc. 19th Ann. Int'l ACM SIGIR Conf. Research and Development in Information Retrieval (SIGIR'96), pp. 128-136, Aug. 1996.

No context found.

. Brajnik, G,, Mizzaro, S., Tasso, C. (1996). Evaluating User Interfaces to Information Retrieval Systems: A Case Study on User Support. Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 128-136.

No context found.

G. Brajnik, S. Mizzaro, and C. Tasso, "Evaluating User Interfaces to Information Retrieval Systems: A Case Study on User Support," Proc. 19th Ann. Int'l ACM SIGIR Conf. Research and Development in Information Retrieval (SIGIR'96), pp. 128-136, Aug. 1996.

No context found.

Brajnik, G., Mizzaro, S. and Tasso, C. (1996) Evaluating user interfaces to information retrieval systems: a case study on user support. In SIGIR 96 Proceedings, ACM Press, 128-136.

Online articles have much greater impact   More about CiteSeer.IST   Add search form to your site   Submit documents   Feedback  

CiteSeer.IST - Copyright Penn State and NEC