Guohua Li

Discriminative Pruning of Language Models for Chinese Word Segmentation (2009)

Jianfeng Li, Haifeng Wang, Dengjun Ren, Guohua Li

This paper presents a discriminative pruning method of n-gram language model for Chinese word segmentation. To reduce the size of the language model that is used in a Chinese word segmentation...

Informed Institutional Trading And News Announcements (2009)

Li, Guohua

This dissertation studies the daily institutional investors trading patterns before and after public news announcements in the US equity market, such as Merger and Acquisition announcement and...

INCIDENCE OF INJURY IN PROFESSIONAL MIXED MARTIAL ARTS COMPETITIONS (2006)

Gregory H. Bledsoe, Edbert B. Hsu, Jurek George Grabowski, Justin D. Brill, Guohua Li

Mixed Martial Arts (MMA) competitions were introduced in the United States with the first Ultimate Fighting Championship (UFC) in 1993. In 2001, Nevada and New Jersey sanctioned MMA events after...

Correlating homicide and suicide (2005)

Bills, Corey B., Li, Guohua

Background The relationship between homicide and suicide has been studied extensively, but with conflicting results. The primary objective of this study was to examine the correlation between...

Correlating homicide and suicide (2005)

Bills, Corey B, Li, Guohua

Background The relationship between homicide and suicide has been studied extensively, but with conflicting results. The primary objective of this study was to examine the correlation between...

Identification and Development of User Requirements to Support Robust Corridor Investment Models Final Report—September 2004 Sponsored by (2004)

Guohua Li, Hao Wang

The contents of this report reflect the views of the authors, who are responsible for the facts and the accuracy of the information presented herein. This document is disseminated under the...

Age, Flight Experience, and Risk of Crash Involvement in a Cohort of Professional Pilots (2003)

Li, Guohua, Baker, Susan P., Grabowski, Jurek G., Qiang, Yandong, McCarthy, Melissa L., Rebok, George W.

Federal aviation regulations prohibit airline pilots from flying beyond the age of 60 years. However, the relation between pilot age and flight safety has not been rigorously assessed using empirical...

Exploratory Spatial Analysis of Pilot Fatality Rates in General Aviation Crashes Using Geographic Information Systems (2002)

Grabowski, Jurek G., Curriero, Frank C., Baker, Susan P., Li, Guohua

Geographic information systems and exploratory spatial analysis were used to describe the geographic characteristics of pilot fatality rates in 1983–1998 general aviation crashes within the...

Fatal Crashes among Older Drivers: Decomposition of Rates into Contributing Factors (2002)

Dellinger, Ann M., Langlois, Jean A., Li, Guohua

This study selected US drivers aged 55 years or older who were involved in fatal crashes in 1990 and 1995 and explored factors that influenced their fatal crash involvement rate. The fatal crash...

Homicide Mortality in the United States, 1935-1994: Age, Period, and Cohort Effects (1999)

Shahpar, Cyrus, Li, Guohua

The authors analyzed homicide mortality data for the United States from 1935 to 1994, to delineate temporal trends and birth cohort patterns. This study included 850, 822 homicide-attributed deaths...

Crashes of Instructional Flights. Analysis of Cases and Remedial Approaches. (1998)

Baker, Susan P., Lamb, Margaret W., Li, Guohua, Dodd, Robert S.

Instructional flights experience more than 300 crashes annually and are involved in more than one-third of all midair collisions. Research was undertaken to identify the circumstances of...

Secular Trends in Adolescent Never Smoking From 1990 to 1999 in California: An Age–Period–Cohort Analysis

Chen, Xinguang, Li, Guohua, Unger, Jennifer B., Liu, Xiaowei, Johnson, C. Anderson

Objectives. We analyzed age, time period, and cohort effects on trends in adolescent cigarette smoking in California from 1990 to 1999.

Secular Trends in Adolescent Never Smoking From 1990 to 1999 in California: An Age–Period–Cohort Analysis

Chen, Xinguang, Li, Guohua, Unger, Jennifer B., Liu, Xiaowei, Johnson, C. Anderson

Objectives. We analyzed age, time period, and cohort effects on trends in adolescent cigarette smoking in California from 1990 to 1999.