The Association for Computing Machinery (ACM) is a US-based international learned society for computing. It was founded in 1947 and is the world's largest scientific and educational computing society. The ACM is a non-profit professional membership group, reporting nearly 110,000 student and professional members as of 2022. Its headquarters are in New York City.
Information retrieval (IR) in computing and information science is the task of identifying and retrieving information system resources that are relevant to an information need. The information need can be specified in the form of a search query. In the case of document retrieval, queries can be based on full-text or other content-based indexing. Information retrieval is the science of searching for information in a document, searching for documents themselves, and also searching for the metadata that describes data, and for databases of texts, images or sounds.
DBLP is a computer science bibliography website. Starting in 1993 at Universität Trier in Germany, it grew from a small collection of HTML files and became an organization hosting a database and logic programming bibliography site. Since November 2018, DBLP is a branch of Schloss Dagstuhl – Leibniz-Zentrum für Informatik (LZI). DBLP listed more than 5.4 million journal articles, conference papers, and other publications on computer science in December 2020, up from about 14,000 in 1995 and 3.66 million in July 2016. All important journals on computer science are tracked. Proceedings papers of many conferences are also tracked. It is mirrored at three sites across the Internet.
In information science and information retrieval, relevance denotes how well a retrieved document or set of documents meets the information need of the user. Relevance may include concerns such as timeliness, authority or novelty of the result.
The Text REtrieval Conference (TREC) is an ongoing series of workshops focusing on a list of different information retrieval (IR) research areas, or tracks. It is co-sponsored by the National Institute of Standards and Technology (NIST) and the Intelligence Advanced Research Projects Activity, and began in 1992 as part of the TIPSTER Text program. Its purpose is to support and encourage research within the information retrieval community by providing the infrastructure necessary for large-scale evaluation of text retrieval methodologies and to increase the speed of lab-to-product transfer of technology.
Legal informatics is an area within information science.
Ricardo A. Baeza-Yates is a Chilean-Catalan-American computer scientist that currently is the Director of Research of the Institute for Experiential AI at Northeastern University in the Silicon Valley campus. He is also part-time professor at Universitat Pompeu Fabra in Barcelona and Universidad de Chile in Santiago. He is an expert member of the Global Partnership on Artificial Intelligence, a member of the Association for Computing Machinery's US Technology Policy Committee as well as IEEE's Ethics Committee.
Search engine indexing is the collecting, parsing, and storing of data to facilitate fast and accurate information retrieval. Index design incorporates interdisciplinary concepts from linguistics, cognitive psychology, mathematics, informatics, and computer science. An alternate name for the process, in the context of search engines designed to find web pages on the Internet, is web indexing.
Query expansion (QE) is the process of reformulating a given query to improve retrieval performance in information retrieval operations, particularly in the context of query understanding. In the context of search engines, query expansion involves evaluating a user's input and expanding the search query to match additional documents. Query expansion involves techniques such as:
The Terrier IR Platform is a modular open source software for the rapid development of large-scale information retrieval applications. Terrier was developed by members of the Information Retrieval Research Group, Department of Computing Science, at the University of Glasgow.
Bolesław Karol Szymański is the Claire and Roland Schmitt Distinguished Professor at the Department of Computer Science and the Founding Head of the Center for Network Science and Technology, Rensselaer Polytechnic Institute. He is known for multiple contributions to computer science, including Szymański's algorithm.
James Ze Wang is a Chinese-American computer scientist. He is a distinguished professor of the College of Information Sciences and Technology at Pennsylvania State University. He is also an affiliated professor of the Molecular, Cellular, and Integrative Biosciences Program; the Computational Science Graduate Minor; and the Social Data Analytics Graduate Program. He is co-director of the Intelligent Information Systems Laboratory. He was a visiting professor of the Robotics Institute at Carnegie Mellon University from 2007 to 2008. In 2011 and 2012, he served as a program manager in the Office of International Science and Engineering at the National Science Foundation. He is the second son of Chinese mathematician Wang Yuan.
A concept search is an automated information retrieval method that is used to search electronically stored unstructured text for information that is conceptually similar to the information provided in a search query. In other words, the ideas expressed in the information retrieved in response to a concept search query are relevant to the ideas contained in the text of the query.
Informatics is the study of computational systems. According to the ACM Europe Council and Informatics Europe, informatics is synonymous with computer science and computing as a profession, in which the central notion is transformation of information. In some cases, the term "informatics" may also be used with different meanings, e.g. in the context of social computing, or in context of library science.
Nivio Ziviani is a Brazilian researcher and computer scientist who was born in the city of Belo Horizonte on August 27, 1946, holds a bachelor's degree in mechanical engineering from the Federal University of Minas Gerais, 1971, a master's degree in informatics from the Pontifical Catholic University of Rio de Janeiro, 1976, and a Ph.D. degree in computer science from the University of Waterloo, 1982. As a researcher, he is known for his projects in information retrieval and recommendation systems. In 2011, he received the Scientific Merit Award from the Brazilian Computer Society. Ziviani has Erdös number 2. Currently, he is an emeritus professor in the Computer Science department of the Federal University of Minas Gerais, is a member of the Brazilian Academy of Sciences, he is part of the National Order of Scientific Merit in the Commendator class, and coordinates the Laboratory for Treating Information (LATIN).
ChengXiang Zhai is a computer scientist. He is a Donald Biggar Willett Professor in Engineering in the Department of Computer Science at the University of Illinois at Urbana-Champaign.
Maura Robin Grossman is a research professor and former Director of Women in Computer Science in the David R. Cheriton School of Computer Science at the University of Waterloo. She is cross-appointed to the School of Public Health Sciences at the university and is also principal of Maura Grossman Law in Buffalo, New York. Previously, she was Of Counsel at Wachtell, Lipton, Rosen & Katz, where she pioneered the use of technology-assisted review (TAR) for electronic discovery.
Ümit V. Çatalyürek is a professor of computer science at the Georgia Institute of Technology, and adjunct professor in department of Biomedical Informatics at the Ohio State University. He is known for his work on graph analytics, parallel algorithms for scientific applications, data-intensive computing, and large scale genomic and biomedical applications. He was the director of the High Performance Computing Lab at the Ohio State University. He was named Fellow of the Institute of Electrical and Electronics Engineers (IEEE) in 2016 for contributions to combinatorial scientific computing and parallel computing.
Roozbeh Pournader is a free software activist and expert on Unicode text encoding, text rendering, and fonts, especially for bidirectional text. He is originally from Iran, and is now living in the United States. After the establishment of the Persian Wikipedia, he became the first administrator of the project. He was a major assistant, participant and co-founder of the Persian Wikipedia.
Gonzalo Navarro Badino is a full professor of computer science at the University of Chile and ACM Distinguished Member, whose interests include algorithms and data structures, data compression and text searching. He also participates in the Center for Biotechnology and Bioengineering and the Millennium Institute for Foundational Research on Data .. He obtained his PhD at the University of Chile in 1998 under the supervision of Ricardo Baeza-Yates with the thesis Approximate Text Searching, then worked as a post-doctoral researcher with Esko Ukkonen and Maxime Crochemore.
