Yingjie Victor Chen

Purdue University | Purdue · Department of Computer Graphics Technology (CGT)

Design is inherently collaborative. However, current computational design (CAD) systems are based on a single-user model in which the end artifact may be shared among several people, but the process is poorly represented and supported. We aim to understand and evaluate the mid-level patterns of work that recur across designers and tasks in the cont...

In this article, we present a visual analytics system, SemanticPrism, which aims to analyze large-scale high-dimensional cyber security datasets containing logs of a million computers. SemanticPrism visualizes the data from three different perspectives: spatiotemporal distribution, overall temporal trends, and pixel-based IP (Internet Protocol) add...

Visual analytics tools provide powerful visual representations in order to support the sense-making process. In this process, analysts typically iterate through sequences of steps many times, varying parameters each time. Few visual analytics tools support this process well, nor do they provide support for visualizing and understanding the analysis...

To solve the VAST Challenge 2023 MC3, our team employed a large language model, ChatGPT, to explore the potential of AI-guided visual analytics for the detection of anomalies within a knowledge graph in the context of illegal fishing and marine trade. We employed a systematic and iterative approach, guided by GPT augmentation, that enabled problem...

In this paper, the authors explore different approaches to animating 3D facial emotions, some of which use manual keyframe animation and some of which use machine learning. To compare approaches the authors conducted an experiment consisting of side-by-side comparisons of animation clips generated by skeleton, blendshape, audio-driven, and vision-b...

Abstract-This paper presents CloudAnnotator, a web-based visual analytics tool to analyze social media data streams. CloudAnno-tator consists of multiple interactive and coordinated views to help the analyst dynamically detect, allocate, annotate, and respond to abnormal events and gain a comprehensive insight into the situation. We implemented dat...

In recent years, cruise travel has become an important branch of tourism. However, the existing cruise function system is designed based on the Western lifestyle and is not entirely suitable for Chinese tourists. Therefore, it is necessary to carry out user research on the usage preferences of Chinese tourists. Considering the specicularity and com...

We propose a simple method to measure a driver's fatigue state by detecting the driver's grip force on the steering wheel while driving. We tested the grip force of 36 drivers on the steering wheel in conscious states (Alert) and fatigue states under actual road driving conditions. Using the Stanford sleepiness scale (SSS), we divided drivers into...

The research proposes an in-car entertainment system for children to relieve their in-car boredom and further enhance the travel experience. While more and more attention has already been paid on human-car interaction, there is still minimal research considering the interactions between back seat passengers and the car. Many parents reported the qu...

The multidimensional nature of spatial data poses a challenge for visualization. In this paper, we introduce Phoenixmap, a simple abstract visualization method to address the issue of visualizing multiple spatial distributions at once. The Phoenixmap approach starts by identifying the enclosed outline of the point collection, then assigns different...

The multidimensional nature of spatial data poses a challenge for visualization. In this paper, we introduce Phoenixmap, a simple abstract visualization method to address the issue of visualizing multiple spatial distributions at once. The Phoenixmap approach starts by identifying the enclosed outline of the point collection, then assigns different...

Periodical time series data can reveal temporal patterns as well as anomalies. Although these patterns appear in different ranges with different measurements, the variables in a dataset can be associated with and affect each other. When the size of datasets becomes large, monitoring and analyzing these data become challenging. We propose a visual a...

The computer-aided design process is in a complicated non-linear structure involving selections from a pool of configurations with optimized parameters. In order to understand and improve this decision-making process, this paper conducted a user study on students and expert professionals with more than three years of computer-aided design experienc...

This study investigated how music tempo impacted drivers’ fatigue and quality of attention in a long-distance monotonous highway environment. Sixteen drivers were enrolled in four sessions of real-road driving tests under the following four music conditions: no music, slow tempo, medium tempo and fast tempo. Specifically, the drivers’ electroenceph...

We studied smells, memory and cognition of the visually impaired, aiming to offer some new clues for improving their freedom and mental health by uncovering the relationship between the olfaction and memory of the visually impaired. We conducted three experiments: 1) whether smells can arouse memory, 2) smell memory and geographic cognition, and 3)...

We present our CareerVis system, an interactive visualization tool to aid career education for high school and freshman college students. In additional to its practical use, we believe our design approach has potential to inspire the design community to develop simple visualizations that convey complex information to novice users.

In this work, we propose a new mode of interaction using hand gestures captured by the back camera of a mobile device. Using a simple intuitive two‐finger picking gesture, the user can perform mouse click and drag‐and‐drop operations from the back of the device, which provides an unobstructed touch‐free interaction. This method allows users to oper...

The design of word processing software had always been focusing on enhancing the functionality and productivity, yet ignored the creative aspect of writing activity. We investigated and identified the academic writers' pain points from studies of contextual inquiries. Based on a recursive writing model, we present MindWriter-an academic writing sof...

Visual conventions are perceptually efficient graphic agreements share by users, and it is often used in what we interact with in daily life. It becomes a studying-worthy issue on whether such conventions can enhance performances and reduce cognitive load when we are performing different tasks. Furthermore, whether the visual conventions can affect...

In order to explore the icon controlled digital interface for brain-computer interaction, we use Event-Related Potential technology, first of all, collect the icons from various digital interfaces, use the image processing software to process the icon images, the method comprises the following steps: communication between EEG and test computer, EEG...

Faced with the challenge of information explosion, almost everyone has been exposed to some kind of information visualization in varies of forms. Understanding how people read, understand, interpret and distinguish various forms of visualizations helps designers and developers think about how to improve the designs from the perspectives of users. T...

Radial visualization is an important technique to depict serial periodic data. Circle clock design is intuitive to encode 24-hour cyclical data. However, the biggest limitation of the design is the accuracy of reading time points on circle. Dodecagon is another way to represent time series data. We empirically evaluated the effectiveness of circle...

Used car online trading is a new trend developed in the vehicle trading market recently. In this paper, we focus on user experience of car searching in a used-car website. The datasets of used vehicles are complicated and multidimensional. To find a satisfying car within the budget, the car buyer needs to compare many cars by exploring and comparin...

Visual clutter is a common challenge when visualizing large rank time series data. WikiTopReader, a reader of Wikipedia page rank, lets users explore connections among top-viewed pages by connecting page-rank behaviors with page-link relations. Such a combination enhances the unweighted Wikipedia page-link network and focuses attention on the page...

As the modern high-tech war on the new weapons requirement increasing, the superior performance of the target location system made the helmet-mounted display becoming an indispensable equipment of the aircraft in the future. The paper analyzed the domestic and international process of helmet-mounted display, then the layout requirements and the inf...

The Polytechnic Institute at Purdue University is introducing a new undergraduate major in data visualization. New curricula are being developed to build visualization competencies for visualizing large complex data. The curriculum offers an appreciation for the visualization process, hands-on experience with a wide range of visualization tools cou...

Many elderly people are living apart from their children. We want to develop a system that can reinforce the connection and emotional feelings between aged parents and their children by combing new digital technologies with soft and warm leather material. Through an iterative design process that includes user interview and observation, design explo...

This paper presents the design rationale of a color-changing and olfactory scarf to affect people’s emotional states in a group environment. The goal of the design is to cheer up depressed individuals or calm down those who are overexcited. Our design uses a heart rate sensor and a skin conductance sensor to detect and recognize emotional informati...

Our ageing energy grid, the fundamental resource for human activity, remains one of the great societal challenges. Governments and the energy industry are visioning a future of an engaged society that sustainably produces and consumes energy via a shared multi-directional Smart Grid. This vision; however, depends on our current efforts to increase...

User experience remains a crucial consideration when assessing the successfulness of information visualization systems. The theory of affordances provides a robust framework for user experience design. In this article, we demonstrate a design case that employs an affordance-based framework and evaluate the information visualization display design....

3D modeling is used in Computer Graphics in various fields. Since the growth of gestures, virtual reality and embodied cognition, there have been various new technologies developed to either improve the modeling efficiency, or to provide more nature intuitive experience to the users. In this paper, from the user experience perspective, we try to co...

In the face of increased cyber risks, we present our iterative design process and the resulting principles of SpringRain, an information visualization (infoVis) display design concept for large screens in network control rooms (NOCs). It aims to raise team situation awareness by visualizing large-scale multidimensional computer network datasets as...

Our daily activities now heavily rely on data, and sometimes are even controlled by them. Integrating InfoVis into people's daily lives can help them to access, explore, understand, and utilize the vast variance of data. This paper aims to explore and discuss the idea exchange between the traditional domain of industrial design and the novel fi eld...

Dodeca-Rings Map is the visual analytics system we designed to analyze geo-temporal traffic problems. The system is organized by three kinds of visualizations: dodecagons that show events on the map (Fig. 1 A & B), activity temporal charts (Fig. 1 C), and a social relationship matrix (Fig. 1D). We used it to solve the VAST 2014 Mini-Challenge 2 and...

This article describes a real-time visual analytics process based on microblog and emergency call data to solve VAST 2014 Mini Challenge 3. We extended SMART system (Social Media Analytics and Reporting Toolkit), developed by the U.S. Department of Homeland Security's VACCINE Center. Our system consists of multiple linked views to allow the analyst...

Dodeca-Rings Map is the visual analytics system we designed to analyze geo-temporal traffic problems. The system is organized by three kinds of visualizations: dodecagons that show events on the map, activity temporal charts, and a social relationship matrix. We used it to solve the VAST 2014 Mini-Challenge 2 and then the Grand Challenge. The give...

The 2014 VAST Grand Challenge required us to find victims, suspects, and criminal motivations based on three separate datasets. We developed three VA tools (AnnotatedTimeTree, Dodeca-Ring Map and SMART) to facilitate the understanding of heterogeneous multivariate datasets. These tools were integrated to gain insights into the source data and find...

Investigation of critical events requires dealing with heterogeneous document collections, and is usually done case by case. We address the case of VAST Challenge 2014 Mini-Challenge 1 with the two views of our AnnotatedTimeTree system: the document view and the GAStech view. The document view is a novel AnnotatedTimeTree design for current and his...

Our system helps the analyst monitor POK Rally, which is held in Abila City Park. The system consists of a) control panel; b) time series view; c) LDA topic view; d) reply/retweet networks view; e) map view and f) microblog & emergency call table. Through interactive and visual exploration, several major events occurring in the selected time period...

Port-scan detection is essentially vital to enterprise networks, since many intrusions start with scanning. A port scan can be obvious or subtle in terms of the volume of network traffic. In this paper, we propose a creative approach by combining the characteristic-based method and visual analytics to detect those hard-to-find subtle scans as well...

This paper reports a case study of training technology graduate students to think like a designer in a system design competition through collaborating with design graduate students. In 2013 summer, two faculty members led an interdisciplinary team of technology graduate students and design students to work on a visual analytics system design won th...

This paper adopts the metaphor of representational fluency and proposes an auto linking approach to help analysts investigate details of suspicious sections across different cybersecurity visualizations. Analysis of spatiotemporal network security data takes place both conditionally and in sequence. Many visual analytics systems use time series cur...

This paper introduces a novel comparative strategy to access, synthesize, and redesign a mobile visual analytics (VA) system. Designing, evaluating, and improving VA tools are challenging because of the exploratory and unpredicted nature of their users’ analysis activities in a real context. Often the system development approach is running rounds o...

This paper introduces a novel comparative strategy to access, synthesize, and redesign a mobile visual analytics (VA) system. Designing, evaluating, and improving VA tools are challenging because of the exploratory and unpredicted nature of their users' analysis activities in a real context. Often the system development approach is running rounds o...

We introduce a propagation-based parametric symbolic model approach to supporting analytic provenance. This approach combines a script language to capture and encode the analytic process and a parametrically controlled symbolic model to represent and reuse the logic of the analysis process. Our approach first appeared in a visual analytics system c...

This paper reports a case study of training technology graduate students to think more creatively in a visual analytics system-design competition by collaborating with designers. In the summer of 2013, two faculty members led a team organized by technology and design graduate students to work on a visual analytics system design and won the only two...

We introduce the design and development of the iPad application, Literacy LABELS, which aims to help children with Autism Spectrum Disorders (ASD) develop the early literacy skills necessary to bridge toward reading and writing. There is a common thread among children with ASD to use decoding skills to read. This ability can even occur before they...

This paper proposes an autolinking approach to help analysts investigate spatial details of suspicious sections from an overview temporal visualization. Analysis of spatial-temporal network security data takes place both conditionally and in sequence. Many systems use time-series curves to visualize the temporal perspectives of the data and maps to...

A paradigm shift exists in how to recognize, interpret, represent, and use the never-ending flood of information. Instead of reading lines and lines of text or numbers, users need to grasp the general meaning at a glance. Techniques of information visualization (infoVis) have been widely adopted in public media to create meaningful visual graphics...

In this article, we present a visual analytics system, SemanticPrism, which aims to analyze large-scale high- dimensional cyber security datasets containing logs of a million computers. SemanticPrism visualizes the data from three different perspectives: spatiotemporal distribution, overall temporal trends, and pixel-based IP blocks. With each pers...

We present a visual analytics system SemanticPrism, which aims to analyze large-scale high-dimensional datasets containing logs of a million computers. SemanticPrism visualizes the data from three different perspectives: geo-temporal, time series curve, and pixel visualization. With each perspective, we use semantic zooming to present more detailed...

CZSaw [1] is a visual analytics tool for sense-making across entities, entity collections, and relations with a focus on augmenting the analysis process. It uses a variety of flexible data visualizations to represent, explore, and compute networks of entities and relations from different perspectives. CZSaw is designed to provide a replayable recor...

We are awash in a monotonous sea of buttons and blinking lights. Many modern interfaces try to incorporate more choices and more feedback with fewer buttons, which can be hard to understand and operate. Simplicity is one of the ultimate goals for both product design and interaction design. However, pursuing over-simplicity might mislead the designe...

Clearly, one's ability to build, explore, and compare alternatives can lead to better decision making, problem solving, and design outcomes. However, I find that all too often many systems still work in a single state mode where the user can only see the result from one set of inputs at a time. Here I propose a formalism designed to represent alter...

MobileAnalymator (Mobile Analysis Animator) is a visual analytic system designed to analyze geospatial-temporal data on mobile devices. The system is an Internet based application that allows analysts to work in flexile enviornments at anytime. Its client side is developed by Adobe Flash to animate and interact with data. The server side uses Java...

The new generation of innovative technologies, such as ubiquitous computing, personal informatics, tangible interaction and Internet-based systems, blurs the boundaries between objects and services. Purdue University's interaction design program is its latest addition to the Industrial Design area within Department of Art & Design. The goal is to a...

The VAST 2010 Challenge consisted of three separate datasets which we investigated with three student teams using three different tools in order to solve each Mini Challenge (MC1-3). The teams met to share findings, request supporting evidence from the other mini challenges, and raise questions for other teams to investigate further. We used CZSaw...

CZSaw is a visual analytics tool for sense-making across entities, documents, and relations with a focus on supporting the analysis process. It uses a variety of flexible data visualizations to represent and explore networks of entities and relations from different perspectives. CZSaw supports clustering documents and entities into smaller groups t...

This paper reports our experience of designing a human-centric repository to support learning object authoring. The users of DesignPatterns.ca are designers who want to explore, communicate and share parametric modeling knowledge and strategies. Aiming to support such a community, we provided succinct functions to meet their evident needs, kept the...

The NEAR (navigating exhibitions, annotations and resources) panel is a method of managing digital collections and user preferences through collaborative filtering and graphically revealing implicit data relations such as sharing, reference and similarity. It is implemented on AldrVIldrRE, an online multimedia repository. AldrVIldrRE supports semi-...

Many digital collections share a common structure in which a collection, the objects collected and the meaning of the collection can be separately considered. We present a data structure comprising exhibitions, annotations, and resources (EAR) as a general device for organizing such collections. People author EAR structures and other people value t...

This paper intends to analyze, compare, understand and explore the data relations among a collection, the collected items and user-created meaning appearing in different digital applications. Details of such relations are introduced and investigated with reference to several actual systems. In order to represent these three components in a way easy...

This paper intends to analyze, compare, understand and explore the data relations among a collection, the collected items and user-created meaning appearing in different digital applications. Details of such relations are introduced and investigated with reference to several actual systems. In order to represent these three components in a way easy...

Our research aims to understand the mid-level patterns of work that recur across designers and tasks. Our users comprise active architects and civil engineers. The hypothesis is that making such patterns explicit will result in improved expert work practices, in better learning material and suggestions for improvements in parametric design. The lit...

� Abstract— This paper describes the NEAR (Navigating Exhibitions, Annotations and Resources) panel, a novel interactive visualization technique designed to help people navigate and interpret groups of resources, exhibitions and annotations by revealing hidden relations such as similarities and references. NEAR is implemented on AVIRE, an extended...