International Journal of Data Science and Analysis

Volume 7, Issue 6, December 2021

  • Racial Filtering Classification Model Through Data Analysis of Racial Contents in Twitter

    Jung-hun Baeck, Teresa Hyoju Chang, Jaden Chunho Chyu, Bryan Chunwoo Chyu, Chaehyun Lim

    Issue: Volume 7, Issue 6, December 2021
    Pages: 132-138
    Received: 23 September 2021
    Accepted: 20 October 2021
    Published: 10 November 2021
    Abstract: Stop Asian Hate or Stop Asian American Pacific Islanders (AAPI) Hate refers to the national movement against racially-motivated attacks on Asians. This protest was initiated in line with the Black Lives Matter (BLM) movement, to dismantle the ongoing hate and targeted crimes against Asians, and to educate people of such threats. Hate crimes targeti... Show More
  • Modeling Domestic Price Volatility for Cereal Crops in Ethiopia

    Belay Belete Anjullo

    Issue: Volume 7, Issue 6, December 2021
    Pages: 139-149
    Received: 28 March 2021
    Accepted: 2 November 2021
    Published: 12 November 2021
    Abstract: The volatility in the domestic prices of maize and teff crops has been found to vary over time from month to month. Thus, Families of time series models namely, ARCH with their extensions to generalized ARCH, GARCH and EGARCH models with ARIMA mean equations were considered to the data. The best fitting model among each family of models was selecte... Show More
  • A Machine Learning Approach for the Short-term Reversal Strategy

    Zheng Tan, Yan Li, Chulwoo Han

    Issue: Volume 7, Issue 6, December 2021
    Pages: 150-160
    Received: 25 October 2021
    Accepted: 12 November 2021
    Published: 17 November 2021
    Abstract: The short-term reversal effect is a pervasive and persistent phenomenon in worldwide financial markets that has been found to generate abnormal returns not explainable by traditional asset pricing models. In contrast to the linear model employed in most studies on the short-term reversal, this article aims to establish a nonlinear framework to stud... Show More
  • Trends of Armed Conflict in Kenya from 1997 to 2021: An Exploratory Data Analysis

    Peter Kimani, Caroline Mugo, Henry Athiany

    Issue: Volume 7, Issue 6, December 2021
    Pages: 161-171
    Received: 20 October 2021
    Accepted: 26 November 2021
    Published: 2 December 2021
    Abstract: Armed conflict patterns have drastically changed since the post-cold war period. In Sub-Saharan Africa, armed conflict continues to be persistent and on the rise. Kenya has not experienced civil war, but has experienced intra-state conflicts which display themselves as political, natural resources, ethnicity, land, and environmental conflicts. This... Show More