The use of extended Boolean logic in information retrieval
نویسندگان
چکیده
منابع مشابه
Efficient Extended Boolean Retrieval
Extended Boolean retrieval (EBR) models were proposed nearly three decades ago, but have had little practical impact, despite their significant advantages compared to either ranked keyword or pure Boolean retrieval. In particular, EBR models produce meaningful rankings; their query model allows the representation of complex concepts in an and–or format; and they are scrutable, in that the score...
متن کاملThe use of logic in information retrieval modelling
Information retrieval is the science concerned with the efficient and effective storage of information for the later retrieval and use by interested parties. During the last forty years, a plethora of information retrieval models and their variations have emerged. Logic-based models were launched to provide a rich and uniform representation of information and its semantics with the aim to impro...
متن کاملlearners’ attitudes toward the effectiveness of mobile-assisted language learning (mall) in vocabulary acquisition in the iranian efl context: the case of word lists, audiobooks and dictionary use
رشد انفجاری تکنولوژی فرصت های آموزشی مهیج و جدیدی را پیش روی فراگیران و آموزش دهندگان گذاشته است. امروزه معلمان برای اینکه در امر آموزش زبان بروز باشند باید روش هایی را اتخاذ نمایند که درآن ها از تکنولوژی جهت کمک در یادگیری زبان دوم و چندم استفاده شده باشد. با در نظر گرفتن تحولاتی که رشته ی آموزش زبان در حال رخ دادن است هم اکنون زمان مناسبی برای ارزشیابی نگرش های موجود نسبت به تکنولوژی های جدید...
15 صفحه اولAssessing the level of familiarity, use and also the effectiveness of mind maps in the information retrieval process
Background and Aim: Mind map is a full-color illustrated note-taking in which, main idea or subject is situated. The main ideas then branch out from the center, which are linked to the central idea. This is a relatively new topic, and slight research has been conducted to show its effectiveness worldwide. The aim is to examine the effectiveness of mind maps in the information retrieval process....
متن کاملExtended Boolean retrieval for systematic biomedical reviews
Searching for relevant documents is a laborious task involved in preparing systematic reviews of biomedical literature. Currently, complex Boolean queries are iteratively developed, and then each document of the final query result is assessed for relevance. However, the result set sizes of these queries are hard to control, and in practice it is difficult to balance the competing desires to kee...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ACM SIGMOD Record
سال: 1984
ISSN: 0163-5808
DOI: 10.1145/971697.602295