This research proposes a lecture-on-demand system, which retrieves video data in response to users’ information needs. For this purpose, we utilize texts and audio/video data for a single lecture. Our system extracts audio tracks from lecture video data, transcribes them by way of a large vocabulary continuous speech recognition system, and produces a lecture database. Users can selectively bro...

Answer passage retrieval is an increasingly important information retrieval task as queries become more precise and mobile and audio interfaces more prevalent. In this task, the goal is to retrieve a contiguous series of sentences (a passage) that concisely addresses the information need expressed in the query. Recent work with deep learning has shown the efficacy of distributed text representa...

With the quick development of online social media such as twitter or sina weibo in china, many users usually track hot topics to satisfy their desired information need. For a hot topic, new opinions or ideas will be continuously produced in the form of online data stream. In this scenario, how to effectively filter and display information for a certain topic dynamically, will be a critical prob...

BACKGROUND As the use of social media (SM) tools becomes increasingly widespread, medical trainees need guidance on applying principles of professionalism to their online behavior. OBJECTIVE To develop a curriculum to improve knowledge and skills regarding professionalism of SM use by medical students. METHODS This project was conducted in 3 phases: (1) a needs assessment was performed via ...

This paper presents a user study on music information needs and behaviors of university students in Hong Kong. A mix of quantitative and qualitative methods was used. A survey was completed by 101 participants and supplemental interviews were conducted in order to investigate users’ music information related activities. We found that university students in Hong Kong listened to music frequently...

As more scholarly content is being born digital or digitized, digital libraries are becoming increasingly vital to researchers leveraging scholarly big data for scientific discovery. Given the abundance of scholarly products—especially in environments created by the advent of social networking services—little is known about international scholarly information needs, informationseeking behavior,...

The amount of multimedia content that is available to the general population has steadily increased in recent years and this brings with it the challenge of managing large quantities of content, for both creators and consumers. The MPEG-7 standard is aimed at facilitating the management of multimedia content by providing a set of standardized tools for describing audio-visual information to sup...

Recent research on automatic analysis of social media data during disasters has given insight into how to provide valuable and timely information to formal response agencies—and members of the public—in these safety-critical situations. For the most part, this work has followed a bottom-up approach in which data are analyzed first, and the target audience’s needs are addressed later. Here, we a...

There is a lack of mobile app which aims to improve health screening uptake developed for men. As part of the study to develop an effective mobile app to increase health screening uptake in men, we conducted a needs assessment to find out what do men want from a health screening mobile app. In-depth interviews and focus group discussions were conducted with 31 men from a banking institution in ...

With the increasing popularity of social means to satisfy information needs using Social Media (e.g., Social Media Question Asking, SMQA) or Social Information Retrieval approaches, this paper tries to identify types of information needs which are inherently social and therefore better suited for those techniques. We describe an experiment where prominent websites from various content categorie...