conference paper

Intelligent surveillance using inductive signatures

Proceedings of the fifth joint conference on information sciences, vols 1 and 2

Publication Date

January 1, 2000

Author(s)

Abstract

Intelligent Transportation Systems (ITS) can be a major component for improving transportation efficiency, safety, and environmental sustainability. However, many ITS strategies require accurate and appropriate data in order to function properly. The use of inductive signatures in an intelligent fashion can produce many types of data that are ideal as an input to these ITS strategies. A major benefit of using inductive loops is the wide availability of inductive loops in local and state roadways. Inductive signature analysis exploits the existing infrastructure to obtain valuable measures such as section density, section travel time, vehicle classification, single loop speed, lane change, and partial dynamic origin/destination demand. These measures are derived by using pattern recognition and optimization techniques such as multi-criteria optimization, artificial neural networks, and heuristics.

Suggested Citation
C Sun and S Ritchie (2000) “Intelligent surveillance using inductive signatures”, in . Wang, PP (ed.) Proceedings of the fifth joint conference on information sciences, vols 1 and 2. ASSOC INTELLIGENT MACHINERY, pp. 722–725.

MS Thesis

Off-Street Parking Cost Forecasting Models for Southern California

Publication Date

June 30, 2014

Author(s)

Abstract

Parking cost is an important and sensitive factor in understanding travel behavior and is typically utilized in the mode choice model of regional demand forecasting models. There are various socio-economics variables that can affect the value of parking cost by employment type, time periods, and trip purposes. In this study, a set of parking cost forecasting models are developed using survey data and local socio-economic data with the objective of identifying parking cost patterns and forecasting future parking costs. This study first summarizes methods applied in previous parking cost forecasting models. Two categories of models were estimated. The first category does not consider parking space supply as a factor in forecasting TAZ parking; the second category considers both parking space supply and parking demand as explanatory variables. For each category, using current off-street parking cost survey data, linear regression models are built for hourly, daily and monthly pricing for SCAG Tier 2 Transportation Analysis Zones (TAZ) using R and Matlab. Daily parking rates are set as the base rates to generate the hourly and monthly parking cost models. The consideration of parking demand is a major contribution of this study, with demand generated based on home-based-work trip attractions for commuters by income groups in all models. This study found that daily parking rates can be explained by total employment, the proportion of office to total jobs, and the proportion of multiple to total households. Hourly parking cost can be explained based on daily parking rates and travel behavior associated with education, hospital, finance, entertainment and other employment types. The monthly parking cost model is built base on both daily and hourly parking rates as independent variables. Future work includes, integration of on-street parking costs with the current models for off-street parking.

Suggested Citation
BILING LIU (2014) Off-Street Parking Cost Forecasting Models for Southern California. MS Thesis. UC Irvine. Available at: https://uci.primo.exlibrisgroup.com/permalink/01CDL_IRV_INST/17uq3m8/alma991003181259704701.

published journal article

Organization Structure and Performance: A Critical Review

Academy of Management Review

Suggested Citation
Dan R. Dalton, William D. Todor, Michael J. Spendolini, Gordon J. Fielding and Lyman W. Porter (1980) “Organization Structure and Performance: A Critical Review”, Academy of Management Review, 5(1), pp. 49–64. Available at: 10.5465/amr.1980.4288881.

conference paper

LiDAR Spoofing Meets the New-Gen: Capability Improvements, Broken Assumptions, and New Attack Strategies

Proceedings 2024 Network and Distributed System Security Symposium

Publication Date

January 1, 2024

Author(s)

Takami Sato, Yuki Hayakawa, Ryo Suzuki, Yohsuke Shiiki, Kentaro Yoshioka, Qi Alfred Chen

Abstract

LiDAR (Light Detection And Ranging) is an indispensable sensor for precise long- and wide-range 3D sensing, which directly benefited the recent rapid deployment of autonomous driving (AD). Meanwhile, such a safety-critical application strongly motivates its security research. A recent line of research finds that one can manipulate the LiDAR point cloud and fool object detectors by firing malicious lasers against LiDAR. However, these efforts face 3 critical research gaps: (1) considering only one specific LiDAR (VLP-16); (2) assuming unvalidated attack capabilities; and (3) evaluating object detectors with limited spoofing capability modeling and setup diversity. To fill these critical research gaps, we conduct the first large-scale measurement study on LiDAR spoofing attack capabilities on object detectors with 9 popular LiDARs, covering both first- and new-generation LiDARs, and 3 major types of object detectors trained on 5 different datasets. To facilitate the measurements, we (1) identify spoofer improvements that significantly improve the latest spoofing capability, (2) identify a new object removal attack that overcomes the applicability limitation of the latest method to new-generation LiDARs, and (3) perform novel mathematical modeling for both object injection and removal attacks based on our measurement results. Through this study, we are able to uncover a total of 15 novel findings, including not only completely new ones due to the measurement angle novelty, but also many that can directly challenge the latest understandings in this problem space. We also discuss defenses.

Suggested Citation
Takami Sato, Yuki Hayakawa, Ryo Suzuki, Yohsuke Shiiki, Kentaro Yoshioka and Qi Alfred Chen (2024) “LiDAR Spoofing Meets the New-Gen: Capability Improvements, Broken Assumptions, and New Attack Strategies”, in Proceedings 2024 Network and Distributed System Security Symposium. Available at: 10.14722/ndss.2024.23350.

Preprint Journal Article

SoK: On the Semantic AI Security in Autonomous Driving

Publication Date

March 10, 2022

Author(s)

Junjie Shen, Ningfei Wang, Ziwen Wan, Yunpeng Luo, Takami Sato, Zhisheng Hu, Xinyang Zhang, Shengjian Guo, Zhenyu Zhong, Kang Li, Ziming Zhao, Chunming Qiao, Qi Alfred Chen

Report Number

arXiv:2203.05314

Abstract

Autonomous Driving (AD) systems rely on AI components to make safety and correct driving decisions. Unfortunately, today’s AI algorithms are known to be generally vulnerable to adversarial attacks. However, for such AI component-level vulnerabilities to be semantically impactful at the system level, it needs to address non-trivial semantic gaps both (1) from the system-level attack input spaces to those at AI component level, and (2) from AI component-level attack impacts to those at the system level. In this paper, we define such research space as semantic AI security as opposed to generic AI security. Over the past 5 years, increasingly more research works are performed to tackle such semantic AI security challenges in AD context, which has started to show an exponential growth trend. In this paper, we perform the first systematization of knowledge of such growing semantic AD AI security research space. In total, we collect and analyze 53 such papers, and systematically taxonomize them based on research aspects critical for the security field. We summarize 6 most substantial scientific gaps observed based on quantitative comparisons both vertically among existing AD AI security works and horizontally with security works from closely-related domains. With these, we are able to provide insights and potential future directions not only at the design level, but also at the research goal, methodology, and community levels. To address the most critical scientific methodology-level gap, we take the initiative to develop an open-source, uniform, and extensible system-driven evaluation platform, named PASS, for the semantic AD AI security research community. We also use our implemented platform prototype to showcase the capabilities and benefits of such a platform using representative semantic AD AI attacks.

Suggested Citation
Junjie Shen, Ningfei Wang, Ziwen Wan, Yunpeng Luo, Takami Sato, Zhisheng Hu, Xinyang Zhang, Shengjian Guo, Zhenyu Zhong, Kang Li, Ziming Zhao, Chunming Qiao and Qi Alfred Chen (2022) “SoK: On the Semantic AI Security in Autonomous Driving”. arXiv. Available at: http://arxiv.org/abs/2203.05314 (Accessed: October 5, 2023).

published journal article

Path to Eco-Driving: Electric vehicle HVAC and route joint optimization

IEEE Design & Test

Publication Date

December 1, 2018

Author(s)

Korosh Vatanparvar, Mohammad Al Faruque
Suggested Citation
Korosh Vatanparvar and Mohammad Abdullah Al Faruque (2018) “Path to Eco-Driving: Electric vehicle HVAC and route joint optimization”, IEEE Design & Test, 35(6), pp. 8–15. Available at: 10.1109/mdat.2017.2754258.

published journal article

Taxonomy of shared autonomous vehicle fleet management problems to inform future transportation mobility

Transportation Research Record

Publication Date

January 1, 2017

Author(s)

Michael Hyland, Hani Mahmassani
Suggested Citation
Michael F. Hyland and Hani S. Mahmassani (2017) “Taxonomy of shared autonomous vehicle fleet management problems to inform future transportation mobility”, Transportation Research Record, 2653(1), pp. 26–34. Available at: 10.3141/2653-04.

published journal article

Section-related measures of traffic system performance

Transportation Research Record

Publication Date

January 1, 1996

Author(s)

R.D. Kuhne, J. Palen, C. Gardner, Stephen Ritchie
Suggested Citation
R.D. Kuhne, J. Palen, C. Gardner and S.G. Ritchie (1996) “Section-related measures of traffic system performance”, Transportation Research Record [Preprint].

working paper

A Non-Linear Canonical Correlation Analysis of Weekly Trip Chaining Behaviour

Publication Date

November 1, 1985

Author(s)

Working Paper

UCI-ITS-WP-85-10

Areas of Expertise

Abstract

This research concerns the relationships between the patterns of activities pursued in home-based trip chains and the characteristics of the persons making the chains. The data source is a one-week travel diary reported by persons over eleven years of age in the Netherlands in 1984. All home-based trip chains, including both simple two-link chains and more complex ones, were classified on the basis of the sequence of away-from-home activities. Twenty types were distinguished. The presence or absence of these trip-chain types were then explained in terms of the personal and household characteristics of the travellers using non-linear canonical correlation analysis. This analysis technique can accommodate multiple dependent variables and nominally-scaled (categorical) variables in both the independent and dependent variable sets. Determined are the category scores for each independent variable that are optimal in explaining patterns in the dependent chain-type variables. Also determined are the optimal combinations of the two variable sets. These results capture the relationships between the sequences of activities in trip chains and the variables age, sex, working status, household income, stage in the family life cycle, household car ownership, and residential location. The most effective variable was found to be life cycle, followed by age and income.

Suggested Citation
Thomas F. Golob (1985) A Non-Linear Canonical Correlation Analysis of Weekly Trip Chaining Behaviour. Working Paper UCI-ITS-WP-85-10. Institute of Transportation Studies, Irvine. Available at: https://escholarship.org/uc/item/741498px.

published journal article

Stochastic observability and uncertainty characterization in simultaneous receiver and transmitter localization

IEEE Transactions on Aerospace and Electronic Systems

Publication Date

April 1, 2019

Author(s)

Joshua J. Morales, Zaher Kassas
Suggested Citation
Joshua J. Morales and Zaher M. Kassas (2019) “Stochastic observability and uncertainty characterization in simultaneous receiver and transmitter localization”, IEEE Transactions on Aerospace and Electronic Systems, 55(2), pp. 1021–1031. Available at: 10.1109/taes.2018.2856318.