Chat System Research Articles

Standing By to Help: Transforming Online Reference with a Proactive Chat System

In July 2013, the University of Texas at San Antonio Libraries implemented a proactive, context-sensitive chat system developed for online businesses. Chat questions immediately increased from eight questions daily to eight questions hourly on average, resulting in an increase of 340% from 2013 to 2014. This paper describes the system characteristics, explaining how the chat client was configured to provide convenient, context-sensitive help that engages many more users than the previous system. An analysis showed that most questions received were reference questions requiring the expertise of a librarian. The system has lowered the bar of inquiry for reference users, transforming chat from a low-use option to a heavily used service with an important role in supporting academic research and information literacy.

장애학생의 학습을 위한 화상과 이러닝 시스템의 융합 개발

현재 정상적인 학생의 교육 규칙으로만 되어있는 학교체제에 대한 장애 학생에 대한 교육적인 환경의 대안을 제시한다. 신체장애가 있는 학생들을 위한 연구로, 특히 손사용이 어려운 신체장애인이 사용할 수 있도록 설계되었다. 장애자학습 화상 e-러닝 시스템의 개발 목적은 장애학생의 자기주도적 학습이 가능할 수 있도록 하는데 있다. 이러닝 시스템의 구성은 웹 기반의 멀티미디어 시스템으로 화상회의시스템과 음성을 글자로 바꾸어주는 시스템을 이용해 청각장애 학생이 채팅 시스템을 통해서 1:1통신함으로써 교사와 양방향 통신할 수 있다. 본 논문에서 개발한 장애자학습 이러닝 시스템은 교사와 장애학생 사이의 1:1양방향 통신 알고리즘을 이용하여 교육이 진행된다. Currently, we are presenting an alternative educational environment for the normal student of education rules failure of the only that has been the school system student. The study for students with disabilities, it is designed especially to be able to use difficult disabilities the use of hand. Development objectives of the learning video e-learning system of persons with disabilities, is that to be able to capable of self-directed learning of disabled students. Configuration of e-running system, Web-based multimedia system, utilizing the system that will change the video conferencing system and voice to a character hearing impaired students through the chat system is 1:1 by communication, and teachers it is possible to perform two-way communication. A learning disability e-learning system developed in this paper between teachers and students with disabilities 1:1 training is conducted using a two-way communication algorithms.

拡張現実感による顔表情操作を用いたビデオ通話方式( サービス現場・日常生活に浸透するVR/AR)

拡張現実感による顔表情操作を用いたビデオ通話方式( サービス現場・日常生活に浸透するVR/AR)

I3.2: Invited Paper: A Multiview 3D Holochat System

We present a lightweight holographic video chat system relying on a cheap camera array to stream full parallax 64‐view 3D content live onto a mobile holographic display by LEIA Inc. The system auto‐calibrates the camera views to a simple target and is suitable for real‐time communication over a peer‐to‐peer network. The zoom level and focal (zero‐disparity) plane location of the system can be adjusted in software and the depth of field can be adjusted by simple modification of the camera baseline.

Sharing Domestic Life through Long-Term Video Connections

Video chat systems such as Skype, Google+ Hangouts, and FaceTime have been widely adopted by family members and friends to connect with one another over distance. We have conducted a corpus of studies that explore how various demographics make use of such video chat systems in which this usage moves beyond the paradigm of conversational support to one in which aspects of everyday life are shared over long periods of time, sometimes in an almost passive manner. We describe and reflect on studies of long-distance couples, teenagers, and major life events, along with design research focused on new video communication systems—the Family Window, Family Portals, and Perch—that explicitly support “always-on video” for awareness and communication. Overall, our findings show that people highly value long-term video connections and have appropriated them in a number of different ways. Designers of future video communication systems need to consider: ways of supporting the sharing of everyday life rather than just conversation, providing different design solutions for different locations and situations, providing appropriate audio control and feedback, and supporting expressions of intimacy over distance.

Tag-based Chat Support System to Remind Users of Contents of Past Conversations

Abstract In this article, we propose a chat system that helps users remember and resume past conversations by using tags. In computer- mediated communication such as online chat, it is often difficult in communication to continue conversations regarding issues that have been discussed in the past because they may have forgotten the contents of the issue. Our system adds tags for each chat logs based on words that were used in the chat and displays the tags when users restart the interrupted chat. As a result of three experiments with the proposed system, it revealed that display of tags is useful to remind users of contents of past conversations.

Development of Manga-style chat system introducing the Japanese style of expression

Development of Manga-style chat system introducing the Japanese style of expression

Building of Information Sharing Environment in Real Time Between the Teachers by Using Web-Based Chat System

Building of Information Sharing Environment in Real Time Between the Teachers by Using Web-Based Chat System

Valuable Tourism Information via Mobile Application

The travel and tourism industry is one of the main sources of income in Thailand. People choose to travel around the world, as a way to relax and enjoy their time. Users search information from many resources before and during their travel. We grouped the mobile tourism applications into two main groups in order to analyse the nature of information in the tourism applications. Social network provides rich collaborative user-generated information. We found that most tourism applications require personal information and pre-existing association in order to get information. We argue that, in tourism, a user requires instant and easy access to information. So the social network might not be an appropriate option. Therefore we propose a simple collaborative user-generated content application, which has a location awareness chat system. We aim to provide an application with self-sufficient information that allows the user to instantly share, search, and comment on information at anytime and anywhere. Moreover, the location awareness chat system is introduced to provide instant firsthand information to the users as well.

Collective emotion dynamics in chats with agents, moderators and Bots

Using agent-directed simulations, we investigate fluctuations in the collective emotional states on a chat network where agents interchange messages with a fixed number of moderators and emotional Bot. To design a realistic chat system, the interaction rules and some statistical parameters, as well as the agent's attributes, are inferred from the empirical chat channel \texttt{Ubuntu}. In the simulations, the Bot's emotion is fixed; the moderators tune the level of its activity by passing a fraction $\epsilon$ of messages to the Bot. At $\epsilon \gtrsim 0$, the collective emotional state matching the Bot's emotion polarity gradually arises; the average growth rate of the dominant emotional charge serves as an order parameter. Due to self-organizing effects, the collective dynamics is more explosive when positive emotions arise by positive Bot than the onset of negative emotions in the presence of negative Bot at the same $\epsilon$. Furthermore, when the emotions matching the Bot's emotion polarity are spread over the system, the underlying fractal processes exhibit higher persistence and stronger clustering of events than the processes spreading of emotion polarity opposite to the Bot's emotion. On the other hand, the relaxation dynamics is controlled by the external noise; the related nonextensive parameter, estimated from the statistics of returns, is virtually independent of the Bot's activity level and emotion contents.

Routing and Staffing in Customer Service Chat Systems with Impatient Customers

We consider customer service chat (CSC) systems where customers can receive real time service from agents using an instant messaging (IM) application over the Internet. A unique feature of these systems is that agents can serve multiple customers simultaneously. The number of customers that an agent is serving determines the rate at which each customer assigned to that agent receives service. We consider the staffing problem in CSC systems with impatient customers where the objective is to minimize the number of agents while providing a certain service level. The service level is measured in terms of the proportion of customers who abandon the system in the long run. First we propose effective routing policies based on a static planning LP, both for the cases when the arrival rate is observable and for when the rate is unobservable. We show that these routing policies minimize the proportion of abandoning customers in the long run asymptotically for large systems. We also prove that the staffing solution obtained from a staffing LP, when used with the proposed routing policies, is asymptotically optimal. We illustrate the effectiveness of our solution procedure in systems with small to large sizes via numerical and simulation experiments.

Development of a haptic video chat system

Since conventional audio-video teleconferencing systems have reached their limits, the needs of integrating new sensations to improve users' telecommunication experience are growing. Haptics, the sense of touch, which includes handshake, comforting hug, encouraging pat, and other physical contacts, is important to interpersonal communication, as it allows people to express and receive intimate affection, intention or emotion efficiently. Motivated by some haptic telecommunication softwares, this paper presents an innovative webcam-based touchscreen to further increase people's degree of immersion with the haptic video chat system at a more reasonable price. With our webcam-based touchscreen, the user could directly use his/her bare hand to touch the image of the person who he/she is chatting with, instead of controlling a haptic device as the medium to realize indirect touch. This paper also gives details of the touchscreen method and our proposed mathematical models for touch position calculation. Experimental results show that our system is accurate and robust, while maintaining high compatibility with conventional audio-video teleconferencing systems for combination. With our haptic jacket, the passive user can feel the touch of the active user at the right position. Finally, we draw the conclusions and talk about future work.

A Method for Bypassing Keystroke Recognition Based Security System Using Social Engineering

In this paper we aim to use the power of Social Engineering to bypass Keystroke Recognition based authentication system. We have designed a virtual chat system (basically a chat bot), coded in Python, which performs the much needed social engineering on the victim. A wise victim may think that the bot is trying to extract confidential credentials from him and so provides false credentials to it but in reality the bot has nothing to do with the credentials. Bot's only job is to record the typing speed of the individual which is the basic need of a security system based on keystroke recognition. Our system includes following prime specialties (assuming two machines, one is the victim's and another the attacker's).  At the victim's side our virtual chat bot measures the victim's typing time and creates a database of it.  An attacking program (designed in Python), integrated to the chat bot, uses the above created database and enters the credentials to the security system virtually at the same time as that of the victim. As a result access is granted to the victim's system. Hence we can effectively breach the security system based on keystroke recognition, which primarily uses a person's typing speed and relies on the fact that no two different person's typing speed are exactly same. Keywords: Keystroke Recognition, Python, Social-engineering, Virtual Chat System (Chat Bot).

An Empirical Investigation of Similarity-driven Trust Dynamics in Social Networks

Designing applications for group decision-making requires an understanding of how opinions are developed in a social network. In many situations, trust is the most important factor that determines the social dynamics of opinions. The goal of this study is to investigate the formation of trust in a social network and to develop cognitive models describing the trust dynamics. This paper presents results of a controlled experiment conducted to collect human behavior data through a series of trust evaluation tasks. Seventy-five subjects evaluated a short video of a cartoon, using mobile devices. Each subject was then asked to discuss her/his impressions of the video with four other participants, using an internet chat system. The four other participants were, in fact, computer agents that responded in a way similar to or different from the subject's assessment. The experiment focused on how trust is formed and recovered under the influence of foreign opinions. The empirical data collected was compared with normative data calculated using the classic Bayesian model. Results obtained showed that when people develop trust to others, factors other than a mere opinion of similarity may strongly affect the trust-driven dynamics of social networks – formation and dissolution of ties, as well as information dissemination.

Development and evaluation of an emotional chat system using sense of touch

A newly developed chat system that uses the sense of touch via pressure sensors to communicate a user's feelings is proposed. According to the strength of a user's grasp on a mouse, face marks are entered into a chat window. This system was applied in an electronic conferencing system called a remote seminar support system. Our experiments showed that users found the system to be more interesting than a traditional chat system.

Construction of a Topic Database for Remote Conversation Support

This paper describes a topic database for conversation support for people with cognitive handicaps such as aphasia. The authors implemented a topic database based on word lists developed for people with aphasia as an RDF database to exploit the conceptual relationships among words and extended it to include web resources a user needs. To allow database personalization, the authors introduce an access control mechanism and incorporate the topic database into a chat system for remote conversation support over the Internet.

Development of Manga-style Chat System Aiming to Communicate Nonverbal Expression

In this article, we propose a Manga-style chat system to transmit nonverbal information smoothly and visually based on techniques of Japanese comics. A character, pictographs, emoticons or smileys provide much information to viewers through their shapes or arrangements, so senders of messages are required to select the appropriate emotion not to give an unexpected impression from them. It is very troublesome for users to choose manually various emotions at each message during their chat. We aim to reduce users’ burdens and to provide an intuitive interface by adopting Japanese Manga-style to chat system. As a result of a comparison experiment with an existing chat system, it revealed that users could transmit nonverbal information in the same level and users had hardly any trouble in exchanging messages meanwhile our system can minimize the burden on choosing the emotions.

S121012 タイピング駆動型身体的引き込みキャラクタを用いた多人数チャットシステム([S121-01]ヒューマンインタフェース(1))

In recent years, character chat is widely used as a means of communication in remote areas. In particular, character chat is used by people around the world in online games, etc. In face-to-face communication, humans share embodied rhythms, that is, the listener's movements such as nodding and body movements, are synchronized with the speaker's speech. This phenomenon, called entrainment, plays an important role in smooth interaction and communication. We have developed an embodied entrainment technology called iRT(InterRobot Technology) that generates automatically communicative movements based on voice input. In order to support communication via virtual characters in an online chat, we applied iRT to the characters and developed a typing-driven embodied entrainment character chat system "InterChat" that generates a character's interactive movements from the user's typing rhythms and natural movements from the meaning of messages in transmission and reception. In this paper, in consideration of the practical use for multiple users, we propose an arrangement of characters in chat system for four users, and we conduct the chat communication experiment. In addition, based on the evaluation result, we develop a typing-driven embodied entrainment character chat system for up to six users.

InterChat: A Typing-Driven Embodied Entrainment Character Chat System

InterChat: A Typing-Driven Embodied Entrainment Character Chat System

Association Reply Method for Intelligent Conversation Processing

This paper proposes a response autonomous production method on chatting system for intelligence conversation. An autonomous response method needs some rules for fixed pattern talking and application ability for new expression. A response must make autonomously based on understanding of natural language sentence. So, it needs a mechanism of humanistic association and amphiboly based on grammar and rule of conversation. This paper explains a mechanism of concept association and commonsense judgement and proposes a association response method based on commonsense using the mechanism that is unrealizable only with statistical processing. The proposed response method are place association method, adjective association method and change topic association method based on place information getting from conversation situation. And then there was able to achieve an accuracy of 80%, 74% and 71%.