Unsupervised Solution Post Identification from Discussion Forums

Discussion forums have evolved into a dependablesource of knowledge to solvecommon problems. However, only a minorityof the posts in discussion forumsare solution posts. Identifying solutionposts from discussion forums, hence, is animportant research problem. In this paper,we present a technique for unsupervisedsolution post identification leveraginga so far unexplored textual feature, thatof lexical correlations between problemsand solutions. We use translation modelsand language models to exploit lexicalcorrelations and solution post characterrespectively. Our technique is designedto not rely much on structural featuressuch as post metadata since suchfeatures are often not uniformly availableacross forums. Our clustering-based iterativesolution identification approach basedon the EM-formulation performs favorablyin an empirical evaluation, beatingthe only unsupervised solution identificationtechnique from literature by a verylarge margin. We also show that our unsupervisedtechnique is competitive againstmethods that require supervision, outperformingone such technique comfortably.

Deux approches de l'influence du discours économique sur les phénomènes sociaux

The influence of theoretical discourse on the corresponding field of investigation is an important feature of social science : social scientists shape the world by describing it. This phenomenon has been studied in several ways. Economic sociology has recently focused on the fact that the economy is embedded in the economics through which it is scrutinized. Great names of economic theory have focused on the effects of economists' discourse on agents' behaviours. This article aims to bring out the distinction between these two kinds of contributions which deal with the same object. Finally, it explains the analytical distinction by a difference in the initial problematic. Following trends in the French school of the economics of convention, the social influence of theoretical discourse is analyzed on the strategic side (in connection with economics) and on the interpretative side (in connection with sociology).

Feuillet trimestriel / ANAS, Association nationale des assistantes sociales et des assistants sociaux ; gérant D. Grunewald

1962/07 (N55)-1962/09.

Feuillet trimestriel / ANAS, Association nationale des assistantes sociales et des assistants sociaux ; gérant D. Grunewald

1963/04 (N58)-1963/06.

Feuillet trimestriel / ANAS, Association nationale des assistantes sociales et des assistants sociaux ; gérant D. Grunewald

1966/01 (N69)-1966/03.

Feuillet trimestriel / ANAS, Association nationale des assistantes sociales et des assistants sociaux ; gérant D. Grunewald

1970/06 (N87)-1970/09.

Feuillet trimestriel / ANAS, Association nationale des assistantes sociales et des assistants sociaux ; gérant D. Grunewald

1961/10 (N52)-1961/12.

Feuillet trimestriel / ANAS, Association nationale des assistantes sociales et des assistants sociaux ; gérant D. Grunewald

1970/01 (N85)-1970/03.

Feuillet trimestriel / ANAS, Association nationale des assistantes sociales et des assistants sociaux ; gérant D. Grunewald

1965/04 (N66)-1965/06.

Feuillet trimestriel / ANAS, Association nationale des assistantes sociales et des assistants sociaux ; gérant D. Grunewald

1968/07 (N79)-1968/09.

Feuillet trimestriel / ANAS, Association nationale des assistantes sociales et des assistants sociaux ; gérant D. Grunewald

1970/10 (N88)-1970/12.

Feuillet trimestriel / ANAS, Association nationale des assistantes sociales et des assistants sociaux ; gérant D. Grunewald

1963/01 (N57)-1963/03.