Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-23T07:40:33.411Z Has data issue: false hasContentIssue false

Self-exciting point process models for political conflict forecasting

Published online by Cambridge University Press:  04 December 2017

N. JOHNSON
Affiliation:
Department of Mathematics, California State University, Fullerton, CA, USA emails: [email protected], [email protected], [email protected], [email protected]
A. HITCHMAN
Affiliation:
Department of Mathematics, California State University, Fullerton, CA, USA emails: [email protected], [email protected], [email protected], [email protected]
D. PHAN
Affiliation:
Department of Mathematics, California State University, Fullerton, CA, USA emails: [email protected], [email protected], [email protected], [email protected]
L. SMITH
Affiliation:
Department of Mathematics, California State University, Fullerton, CA, USA emails: [email protected], [email protected], [email protected], [email protected]

Abstract

In 2008, the Defense Advanced Research Project Agency commissioned a database known as the Integrated Crisis Early Warning System to serve as the foundation for models capable of detecting and predicting increases in political conflict worldwide. Such models, by signalling expected increases in political conflict, would help inform and prepare policymakers to react accordingly to conflict proliferation both domestically and internationally. Using data from the Integrated Crisis Early Warning System, we construct and test a self-exciting point process, or Hawkes process, model to describe and predict amounts of domestic, political conflict; we focus on Colombia and Venezuela as examples for this model. By comparing the accuracy of fitted models to the observed data, we find that we are able to closely describe occurrences of conflict in each country. Thus, using this model can allow policymakers to anticipate relative increases in the amount of domestic political conflict following major events.

Type
Papers
Copyright
Copyright © Cambridge University Press 2017 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Andriole, S. & Young, R. (1977) Toward the development of an integrated crisis early warning system. In: International Studies Quarterly, pp. 107–50.CrossRefGoogle Scholar
[2] Atran, S. & Ginges, J. (2012) Religious and sacred imperatives in human conflict. Science 336 (6083), 855–57.CrossRefGoogle ScholarPubMed
[3] Barathy, G. & Silverman, B. (2012) Holistically evaluation agent-based social systems models: A case study. Simulation 89 (1), 102135.CrossRefGoogle Scholar
[4] Bond, D., Jenkins, J., Taylor, C. & Schock, K. (1997) Mapping mass political conflict and civil society issues and prospects for the automated development of event data. J. Conflict Resolution 41 (4), 553579.CrossRefGoogle Scholar
[5] Boshcee, E., Natarajan, P. & Weischedel, R. (2013) Automatic extraction of events from open source text for predictive forecasting. In: Handbook of Computational Approaches to Counterterrorism, pp. 51–67.Google Scholar
[6] Brandt, P., Freeman, J. & Schrodt, P. (2011) Real time, time series forecasting of inter-and-intra-state political conflict. In: Conflict Management and Peace Science, pp. 41–64.CrossRefGoogle Scholar
[7] Cox, D. & Isham, V. (1980) Point Processes, CRC Press, London.Google Scholar
[8] Egesdal, M., Fathauer, C., Jouie, K., Neuman, J., Mohler, G. & Lewis, E. (2010) Statistical and stochastic modeling of gang rivalries in Los Angeles. SIAM Undergraduate Research Online 72–94.CrossRefGoogle Scholar
[9] Freeman, J. & Job, B. (1979) Scientific forecasts in international relations: Problems of definition and epistemology. International Studies Quarterly 23 (1), 113–43.CrossRefGoogle Scholar
[10] Germer, D., Schrodt, P., Yilmaz, O. & Abu-Jabr, R. (2002) Conflict and mediation event observation (CAMEO): A new event data framework for the analysis of foreign policy interactions. International Studies Association.Google Scholar
[11] Goldstein, J. (1992) A conflict-cooperation scale for weis events data. J. Conflict Resolution 36 (2), 369385.CrossRefGoogle Scholar
[12] Helmstetter, A. & Sornetter, D. (2003) Importance of direct and indirect triggered seismicity in the etas model of seismicity. Geophys. Res. Lett. 30 (11), 15761579.CrossRefGoogle Scholar
[13] Lewis, E., Mohler, G., Brantingham, P. & Bertozzi, A. (2012) Self-exciting point process models of civilian deaths in Iraq. Secur. J. 25 (3), 244264.CrossRefGoogle Scholar
[14] Mahoney, S., Comstock, E. & Darcy, S. (2011) Aggregating forecasts using a learned bayesian network. In: Twenty-Fourth International FLAIRS Conference.Google Scholar
[15] Mohler, G., Short, M., Brantingham, P., Schoenberg, F. & Tita, G. (2012) Self-exciting point process modeling of crime. J. Am. Stat. Assoc. 106 (493), 100108.CrossRefGoogle Scholar
[16] Ozaki, T. (1979) Maximum likelihood estimation of Hawkes' self-exciting point processes. Ann. Inst. Stat. Math. 31 (1) 145155.CrossRefGoogle Scholar
[17] O'Brien, S. (2013) A multi-method approach for near real time conflict and crisis early warning. In: Handbook of Computational Approaches to Counterterrorism pp. 401–418.Google Scholar
[18] Perkel, D., Gerstein, G. & Moore, G. (1967) Neuronal spike trains and stochastic point processes: the single spike train. Biophys. J., 7 (4), 391418.CrossRefGoogle ScholarPubMed
[19] Racette, M., Smith, C., Cunningham, M., Heekin, T., Lemley, J. & Mathieu, R. (2014) Improving situational awareness for humanitarian logistics through predictive modeling. In: Systems and Information Engineering Design Symposium (SIEDS), pp. 334–339.CrossRefGoogle Scholar
[20] Roberts, K. (2003) Social correlates of party system demise and populist resurgence in Venezuela. Latin America Politics and Society 45 (3), 3557.CrossRefGoogle Scholar
[21] Schrodt, P., Yilmaz, O., Gerner, D. & Hermreck, D. (2008) The CAMEO (conflict and mediation event observations) actor coding framework. 2008 Annual Meeting of the International Studies Association.CrossRefGoogle Scholar
[22] Sheather, S. (2004) Density estimation. Statistical Science 19 (4), 588597.CrossRefGoogle Scholar
[23] Silverman, B. (1986) Density Estimation for Statistics and Data Analysis, CRC Press, London.Google Scholar
[24] Singer, J. & Wallace, M. (1979) To augur well: Early warning indicators in world politics. Sage Publications, First edition.Google Scholar
[25] Snyder, D. & Miller, M. (1991) Self-exciting point processes. Second edition. Random Point Processes in Time and Space, 287–340.CrossRefGoogle Scholar
[26] Tench, S., Fry, H. & Gill, P. (2016) Spatio-temporal patterns of IED usage by the provisional Irish Republican Army. Eur. J. Appl. Math. 27 (3), 377402.CrossRefGoogle Scholar
[27] Terrell, G. & Scott, D. (1992) Variable kernel density estimation. Ann. Stat. 1236–1265.CrossRefGoogle Scholar
[28] Waisberg, T. 2008 Colombia's use of force in Ecuador against terrorist organization: International law and the use of force against non-state actors. Am. Soc. Int. Law. 12 (17).Google Scholar
[29] Ward, M., Beger, A., Cutler, J., Dickenson, M., Dorff, C. & Radford, B. (2013) Comparing GDELT and ICEWS event data. Analysis, 21 (1) 267–97.Google Scholar
[30] Ward, M., Metternich, N., Carrington, C., Dorff, C., Gallop, M., Hollenbach, F., Schultz, A. & Weschle, S. (2012) Geographical models of crises: Evidence from ICEWS. Adv. Design Cross-Cultural Act. 429.Google Scholar