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《algebra_2005_2006.zip：数据挖掘在教育领域的应用》在信息技术日益发达的今天，数据已经成为驱动各种行业创新的重要资源，教育领域也不例外。"algebra_2005_2006.zip" 是一个典型的数据集，专门用于知识追踪研究，它曾在2010年的KDD Cup（国际数据挖掘竞赛）中的"Education Data Mining Challenge"中被广泛使用。这个数据集为分析学生学习行为，理解学习过程，以及提升教育效果提供了宝贵的资料。我们要了解"知识追踪"这一概念。知识追踪是教育数据挖掘的一个重要分支，它的目标是对学生的学习过程进行深入分析，预测他们在特定学科领域的理解和掌握程度。通过对学习行为的实时监测，可以及时发现学生在学习中的困难，从而为教师提供个性化的教学建议，促进学生的学习进步。该压缩包包含了四个文件： 1. "algebra_2005_2006_train.txt"：训练数据集。这是用来构建和训练模型的基础，包含了大量学生在学习代数时的行为记录，可能包括问题解答、完成时间、正确率等信息。通过这些数据，研究人员可以构建机器学习模型来识别学生的学习模式和能力。 2. "algebra_2005_2006_master.txt"：主文件或元数据文件。这通常包含更广泛的背景信息，如学生的基本信息、课程结构、题目详情等，为分析提供上下文。 3. "algebra_2005_2006_test.txt"：测试数据集。这部分数据用于验证和评估模型的性能。它与训练数据分开，确保模型的泛化能力，防止过拟合。 4. "algebra_2005_2006.txt"：可能是完整的原始数据或附加信息，可能包含未分类或未处理的所有数据，供进一步分析使用。在实际应用中，数据科学家会使用这些数据来开发各种算法，如学生建模、学习过程建模、学习困难预测等。例如，他们可能会利用学生的答题历史来预测未来的问题解决能力，或者找出哪些学生可能需要额外的帮助。此外，通过比较不同学生的学习路径，还可以探索最佳学习策略，以优化教育资源分配。 "algebra_2005_2006.zip"数据集为教育研究者和数据科学家提供了一个深入了解学生学习过程的窗口，为改进教育方法、提升教学质量提供了强有力的数据支持。随着大数据和人工智能技术的发展，这类数据集的潜力将不断被挖掘，对未来的教育创新产生深远影响。

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algebra_2005_2006.zip （4个子文件）

algebra_2005_2006.txt 31KB

algebra_2005_2006_master.txt 1.04MB

algebra_2005_2006_test.txt 720KB

algebra_2005_2006_train.txt 216.17MB

Row Anon Student Id Problem Hierarchy Problem Name Problem View Step Name Step Start Time First Transaction Time Correct Transaction Time Step End Time Step Duration (sec) Correct Step Duration (sec) Error Step Duration (sec) Correct First Attempt Incorrects Hints Corrects KC(Default) Opportunity(Default) 1 0BrbPbwCMz Unit ES_04, Section ES_04-1 EG4-FIXED 1 3(x+2) = 15 2005-09-09 12:24:35.0 2005-09-09 12:24:49.0 2005-09-09 12:25:15.0 2005-09-09 12:25:15.0 40 40 0 2 3 1 [SkillRule: Eliminate Parens; {CLT nested; CLT nested, parens; Distribute Mult right; Distribute Mult left; (+/-x +/-a)/b=c, mult; (+/-x +/-a)*b=c, div; [var expr]/[const expr] = [const expr], multiply; Distribute Division left; Distribute Division right; Distribute both mult left; Distribute both mult right; Distribute both divide left; Distribute both divide right; Distribute subex}] 1 2 0BrbPbwCMz Unit ES_04, Section ES_04-1 EG4-FIXED 1 x+2 = 5 2005-09-09 12:25:15.0 2005-09-09 12:25:31.0 2005-09-09 12:25:31.0 2005-09-09 12:25:31.0 16 16 1 0 0 1 [SkillRule: Remove constant; {ax+b=c, positive; ax+b=c, negative; x+a=b, positive; x+a=b, negative; [var expr]+[const expr]=[const expr], positive; [var expr]+[const expr]=[const expr], negative; [var expr]+[const expr]=[const expr], all; Combine constants to right; Combine constants to left; a-x=b, positive; a/x+b=c, positive; a/x+b=c, negative}]~~[SkillRule: Isolate positive; x+a=b, positive] 1~~1 3 0BrbPbwCMz Unit ES_04, Section ES_04-1 EG40 1 2-8y = -4 2005-09-09 12:25:36.0 2005-09-09 12:25:43.0 2005-09-09 12:26:12.0 2005-09-09 12:26:12.0 36 36 0 2 3 1 [SkillRule: Remove constant; {ax+b=c, positive; ax+b=c, negative; x+a=b, positive; x+a=b, negative; [var expr]+[const expr]=[const expr], positive; [var expr]+[const expr]=[const expr], negative; [var expr]+[const expr]=[const expr], all; Combine constants to right; Combine constants to left; a-x=b, positive; a/x+b=c, positive; a/x+b=c, negative}] 2 4 0BrbPbwCMz Unit ES_04, Section ES_04-1 EG40 1 -8y = -6 2005-09-09 12:26:12.0 2005-09-09 12:26:34.0 2005-09-09 12:26:34.0 2005-09-09 12:26:34.0 22 22 1 0 0 1 [SkillRule: Remove coefficient; {ax+b=c, divide; ax=b; [const expr]*[var fact] + [const expr] = [const expr], divide; [var expr]*[const expr] = [const expr], divide; a/b*x=c; a/b*x=c, reciprocal; ax/b=c, reciprocal; ax/b=c; x/a=b; ax=b; (+/-x +/-a)/b=c, mult; a=x*(b+c); a=x*(b-c); a=x*(b*c+d); x/a+b=c, multiply; [var expr]/[const expr] = [const expr], multiply}]~~[SkillRule: Remove negative coefficient; {ax/b=c, reciprocal; ax/b=c; ax=b; x/a=b}] 1~~1 5 0BrbPbwCMz Unit ES_04, Section ES_04-1 EG40 2 -7y-5 = -4 2005-09-09 12:26:38.0 2005-09-09 12:28:36.0 2005-09-09 12:28:36.0 2005-09-09 12:28:36.0 118 118 1 0 0 1 [SkillRule: Remove constant; {ax+b=c, positive; ax+b=c, negative; x+a=b, positive; x+a=b, negative; [var expr]+[const expr]=[const expr], positive; [var expr]+[const expr]=[const expr], negative; [var expr]+[const expr]=[const expr], all; Combine constants to right; Combine constants to left; a-x=b, positive; a/x+b=c, positive; a/x+b=c, negative}]~~[SkillRule: ax+b=c, negative; ax+b=c, negative] 3~~1 6 0BrbPbwCMz Unit ES_04, Section ES_04-1 EG40 2 -7y = 1 2005-09-09 12:28:36.0 2005-09-09 12:28:43.0 2005-09-09 12:28:51.0 2005-09-09 12:28:51.0 15 15 0 1 0 1 [SkillRule: Remove coefficient; {ax+b=c, divide; ax=b; [const expr]*[var fact] + [const expr] = [const expr], divide; [var expr]*[const expr] = [const expr], divide; a/b*x=c; a/b*x=c, reciprocal; ax/b=c, reciprocal; ax/b=c; x/a=b; ax=b; (+/-x +/-a)/b=c, mult; a=x*(b+c); a=x*(b-c); a=x*(b*c+d); x/a+b=c, multiply; [var expr]/[const expr] = [const expr], multiply}]~~[SkillRule: Remove negative coefficient; {ax/b=c, reciprocal; ax/b=c; ax=b; x/a=b}] 2~~2 7 0BrbPbwCMz Unit ES_04, Section ES_04-1 EG40 3 7y+4 = 7 2005-09-09 12:28:57.0 2005-09-09 12:29:09.0 2005-09-09 12:29:09.0 2005-09-09 12:29:09.0 12 12 1 0 0 1 [SkillRule: Remove constant; {ax+b=c, positive; ax+b=c, negative; x+a=b, positive; x+a=b, negative; [var expr]+[const expr]=[const expr], positive; [var expr]+[const expr]=[const expr], negative; [var expr]+[const expr]=[const expr], all; Combine constants to right; Combine constants to left; a-x=b, positive; a/x+b=c, positive; a/x+b=c, negative}] 4 8 0BrbPbwCMz Unit ES_04, Section ES_04-1 EG40 3 7y = 3 2005-09-09 12:29:09.0 2005-09-09 12:29:14.0 2005-09-09 12:29:14.0 2005-09-09 12:29:14.0 5 5 1 0 0 1 [SkillRule: Remove positive coefficient; {ax/b=c, reciprocal; ax/b=c; x/a=b; ax=b}]~~[SkillRule: Remove coefficient; {ax+b=c, divide; ax=b; [const expr]*[var fact] + [const expr] = [const expr], divide; [var expr]*[const expr] = [const expr], divide; a/b*x=c; a/b*x=c, reciprocal; ax/b=c, reciprocal; ax/b=c; x/a=b; ax=b; (+/-x +/-a)/b=c, mult; a=x*(b+c); a=x*(b-c); a=x*(b*c+d); x/a+b=c, multiply; [var expr]/[const expr] = [const expr], multiply}] 1~~3 9 0BrbPbwCMz Unit ES_04, Section ES_04-1 EG40 4 -5+9y = -6 2005-09-09 12:29:19.0 2005-09-09 12:29:31.0 2005-09-09 12:29:31.0 2005-09-09 12:29:31.0 12 12 1 0 0 1 [SkillRule: Remove constant; {ax+b=c, positive; ax+b=c, negative; x+a=b, positive; x+a=b, negative; [var expr]+[const expr]=[const expr], positive; [var expr]+[const expr]=[const expr], negative; [var expr]+[const expr]=[const expr], all; Combine constants to right; Combine constants to left; a-x=b, positive; a/x+b=c, positive; a/x+b=c, negative}]~~[SkillRule: ax+b=c, negative; ax+b=c, negative] 5~~2 10 0BrbPbwCMz Unit ES_04, Section ES_04-1 EG40 4 9y = -1 2005-09-09 12:29:31.0 2005-09-09 12:29:36.0 2005-09-09 12:29:36.0 2005-09-09 12:29:36.0 5 5 1 0 0 1 [SkillRule: Remove positive coefficient; {ax/b=c, reciprocal; ax/b=c; x/a=b; ax=b}]~~[SkillRule: Remove coefficient; {ax+b=c, divide; ax=b; [const expr]*[var fact] + [const expr] = [const expr], divide; [var expr]*[const expr] = [const expr], divide; a/b*x=c; a/b*x=c, reciprocal; ax/b=c, reciprocal; ax/b=c; x/a=b; ax=b; (+/-x +/-a)/b=c, mult; a=x*(b+c); a=x*(b-c); a=x*(b*c+d); x/a+b=c, multiply; [var expr]/[const expr] = [const expr], multiply}] 2~~4 11 0BrbPbwCMz Unit ES_04, Section ES_04-2 EG40 1 -7-3x = -2 2005-09-09 12:29:41.0 2005-09-09 12:30:27.0 2005-09-09 12:30:27.0 2005-09-09 12:30:27.0 46 46 1 0 0 1 [SkillRule: Remove constant; {ax+b=c, positive; ax+b=c, negative; x+a=b, positive; x+a=b, negative; [var expr]+[const expr]=[const expr], positive; [var expr]+[const expr]=[const expr], negative; [var expr]+[const expr]=[const expr], all; Combine constants to right; Combine constants to left; a-x=b, positive; a/x+b=c, positive; a/x+b=c, negative}]~~[SkillRule: ax+b=c, negative; ax+b=c, negative] 6~~3 12 0BrbPbwCMz Unit ES_04, Section ES_04-2 EG40 1 -7-3x+7 = -2+7 2005-09-09 12:30:27.0 2005-09-09 12:30:34.0 2005-09-09 12:30:45.0 2005-09-09 12:30:49.0 22 22 0 1 0 2 [SkillRule: Add/Subtract; [Typein Skill: {Isolate positive; Isolate negative; Remove constant; Consolidate vars, no coeff; Consolidate vars with coeff; Consolidate vars, any}]] 1 13 0BrbPbwCMz Unit ES_04, Section ES_04-2 EG40 1 -3x = 5 2005-09-09 12:30:49.0 2005-09-09 12:31:04.0 2005-09-09 12:31:04.0 2005-09-09 12:31:04.0 15 15 1 0 0 1 [SkillRule: Remove coefficient; {ax+b=c, divide; ax=b; [const expr]*[var fact] + [const expr] = [const expr], divide; [var expr]*[const expr] = [const expr], divide; a/b*x=c; a/b*x=c, reciprocal; ax/b=c, reciprocal; ax/b=c; x/a=b; ax=b; (+/-x +/-a)/b=c, mult; a=x*(b+c); a=x*(b-c); a=x*(b*c+d); x/a+b=c, multiply; [var expr]/[const expr] = [const expr], multiply}]~~[SkillRule: Remove negative coefficient; {ax/b=c, reciprocal; ax/b=c; ax=b; x/a=b}] 5~~3 14 0BrbPbwCMz Unit ES_04, Section ES_04-2 EG40 1 -3x/-3 = 5/-3 2005-09-09 12:31:04.0 2005-09-09 12:31:07.0 2005-09-09 12:31:07.0 2005-09-09 12:31:12.0 8 8 1 0 0 2 [SkillRule: Multiply/Divide; [Typein Skill: {Remove coefficient; Variable in denominator}]] 1 15 0BrbPbwCMz Unit ES_04, Section ES_04-2 EG40 2 -9 = 8y+9 2005-09-09 12:31:16.0 2005-09-09 12:31:29.0 2005-09-09 12:31:29.0 2005-09-09 12:31:29.0 13 13 1 0 0 1 [SkillRu

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