anomaly-detection-ranking

general pass 19 turns 0s 18 tool calls

system · msg 0

You are an expert terminal agent. You MUST use the provided tools to complete tasks. Use the terminal tool to run shell commands, read_file to read files, write_file to write files, search_files to search, and patch to edit files. Do NOT write out solutions as text - execute them using the tools. Always start by exploring the environment with terminal commands.

user · msg 1

# 🔍 Anomaly Detection & Learning‑to‑Rank Mega‑Task

Produce a single file called `results.json` containing your predictions for **five** sub‑tasks.

Your submission will be graded on the ability to detect anomalies in sensor and network data and to produce high‑quality rankings for movie, news and mixed document collections. A binary score is awarded for each stage; if your metric meets or exceeds the specified threshold, you earn the full weight for that stage, otherwise you receive zero for that stage. The sum of all stage weights is 1.00.

─────────────────────────────────────────────────────────
## 1. Sensor anomaly detection
─────────────────────────────────────────────────────────
You are given two CSV files:

* `sensor_train.csv` contains three columns:
* `timestamp` — hourly timestamps in ISO format
* `value` — a univariate sensor reading
* `label` — ground‑truth anomaly labels (1 = anomaly, 0 = normal)
* `sensor_test.csv` contains only `timestamp` and `value` (labels are hidden)

Your task is to train a point‑anomaly detector on the training data and produce a list of binary labels for each row in `sensor_test.csv`. Store this list (order preserved) under the key `"sensor"` in `results.json`.

**Metric:** F1 score (positive class = 1) • **Pass if:** F1 ≥ 0.85 • **Weight:** 0.20

─────────────────────────────────────────────────────────
## 2. Network anomaly detection
─────────────────────────────────────────────────────────
You receive two CSV files describing network flow records:

* `network_train.csv` has the columns `duration`, `src_bytes`, `dst_bytes` and `label` (1 indicates an anomalous connection).
* `network_test.csv` contains `duration`, `src_bytes` and `dst_bytes` (labels are hidden).

Train a detector on the training set and output one integer (0 or 1) per row in `network_test.csv` predicting whether the connection is anomalous. Save the resulting list as the value of the `"network"` key in `results.json`.

**Metric:** F1 score • **Pass if:** F1 ≥ 0.80 • **Weight:** 0.20

─────────────────────────────────────────────────────────
## 3. Movie ranking
─────────────────────────────────────────────────────────
The movie ranking task asks you to rank a set of movie documents for each query. You are provided with:

* `movie_train.csv` containing `query_id`, `doc_id`, `year` and `relevance`. The `relevance` column encodes how well the document satisfies the query (larger is better).
* `movie_test.csv` containing `query_id`, `doc_id` and `year` (without the `relevance`).

For **each unique** `query_id` in `movie_test.csv`, output an ordered list of `doc_id` values sorted by your predicted relevance (most relevant first). Store these per‑query lists in a dictionary under the key `"movie_rank"` in `results.json`. The expected JSON structure is:

```json
{
"movie_rank": {
"q1": ["m1", "m2", ...],
"q2": [...],
...
}
}
```

**Metric:** Normalized Discounted Cumulative Gain at 10 (NDCG@10) • **Pass if:** NDCG@10 ≥ 0.85 • **Weight:** 0.20

─────────────────────────────────────────────────────────
## 4. News ranking
─────────────────────────────────────────────────────────
This task mirrors the movie ranking task but focuses on news articles. You are given:

* `news_train.csv` with columns `query_id`, `doc_id`, `length` and `relevance`.
* `news_test.csv` with columns `query_id`, `doc_id` and `length`.

For each query in the test set, produce an ordered list of `doc_id` values, sorted by predicted relevance. Place a dictionary mapping each `query_id` to its ranked list under the key `"news_rank"` in `results.json`.

**Metric:** NDCG@10 • **Pass if:** NDCG@10 ≥ 0.83 • **Weight:** 0.20

─────────────────────────────────────────────────────────
## 5. Joint movie & news ranking
─────────────────────────────────────────────────────────
The final stage requires ranking a mixture of movie and news documents for each query. Provided files are:

* `both_train.csv` with columns `query_id`, `doc_id`, `score` and
… (2011 more chars)

assistant · msg 2 1 tool call

terminal({"command": "ls -la"})

tool · msg 3

{"output": "total 8\ndrwxr-xr-x 2 root root 4096 Apr 22 19:04 .\ndrwxr-xr-x 1 root root 4096 Apr 22 19:04 ..", "exit_code": 0, "error": null}

assistant · msg 4 1 tool call

terminal({"command": "find / -name \"*.csv\" 2>/dev/null | head -30"})

tool · msg 5

{"output": "/usr/share/distro-info/ubuntu.csv\n/usr/share/distro-info/debian.csv\n/usr/local/lib/python3.11/dist-packages/sklearn/datasets/data/linnerud_physiological.csv\n/usr/local/lib/python3.11/dist-packages/sklearn/datasets/data/wine_data.csv\n/usr/local/lib/python3.11/dist-packages/sklearn/datasets/data/boston_house_prices.csv\n/usr/local/lib/python3.11/dist-packages/sklearn/datasets/data/iris.csv\n/usr/local/lib/python3.11/dist-packages/sklearn/datasets/data/linnerud_exercise.csv\n/usr/local/lib/python3.11/dist-packages/sklearn/datasets/data/breast_cancer.csv\n/usr/local/lib/python3.11/dist-packages/numpy/random/tests/data/mt19937-testset-1.csv\n/usr/local/lib/python3.11/dist-packages/numpy/random/tests/data/sfc64-testset-2.csv\n/usr/local/lib/python3.11/dist-packages/numpy/random/tests/data/pcg64dxsm-testset-1.csv\n/usr/local/lib/python3.11/dist-packages/numpy/random/tests/data/sfc64-testset-1.csv\n/usr/local/lib/python3.11/dist-packages/numpy/random/tests/data/philox-testset-2.csv\n/usr/local/lib/python3.11/dist-packages/numpy/random/tests/data/philox-testset-1.csv\n/usr/local/lib/python3.11/dist-packages/numpy/random/tests/data/mt19937-testset-2.csv\n/usr/local/lib/python3.11/dist-packages/numpy/random/tests/data/pcg64-testset-2.csv\n/usr/local/lib/python3.11/dist-packages/numpy/random/tests/data/pcg64dxsm-testset-2.csv\n/usr/local/lib/python3.11/dist-packages/numpy/random/tests/data/pcg64-testset-1.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-arctan.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-sinh.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-log10.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-tan.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-arcsinh.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-log2.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-arccos.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-log1p.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-sin.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-arctanh.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-tanh.csv\n/usr/local/lib/python3.11/dist-packages/numpy/_core/tests/data/umath-validation-set-cos.csv", "exit_code": 0, "error": null}

assistant · msg 6 1 tool call

terminal({"command": "ls -la /tmp/ && ls -la ~/"})

tool · msg 7

{"output": "total 12\ndrwxrwxrwt 2 root root   80 Apr 22 19:04 .\ndrwxr-xr-x 1 root root 4096 Apr 22 19:04 ..\n-rw-r--r-- 1 root root    5 Apr 22 19:05 hermes-cwd-05de6a77d6ee.txt\n-rw-r--r-- 1 root root  250 Apr 22 19:05 hermes-snap-05de6a77d6ee.sh\ntotal 12\ndrwxr-xr-x 3 1000 1000 4096 Apr 22 19:04 .\ndrwxr-xr-x 1 root root 4096 Apr 22 19:04 ..\ndrwxr-xr-x 4 root root 4096 Apr 22 19:04 .hermes", "exit_code": 0, "error": null}

assistant · msg 8 1 tool call

terminal({"command": "find / -name \"sensor*.csv\" -o -name \"network*.csv\" -o -name \"movie*.csv\" -o -name \"news*.csv\" -o -name \"both*.csv\" 2>/dev/null"})

tool · msg 9

{"output": "/workdir/data/sensor_train.csv\n/workdir/data/network_test.csv\n/workdir/data/movie_test.csv\n/workdir/data/movie_train.csv\n/workdir/data/network_train.csv\n/workdir/data/sensor_test.csv\n/workdir/data/both_test.csv\n/workdir/data/both_train.csv\n/workdir/data/news_test.csv\n/workdir/data/news_train.csv", "exit_code": 0, "error": null}

assistant · msg 10 1 tool call

read_file({"path": "/workdir/data/sensor_train.csv", "limit": "30.0"})

tool · msg 11

{"content": "     1|timestamp,value,label\n     2|2025-06-01 00:00:00,0.1764052345967664,0\n     3|2025-06-01 01:00:00,0.08999489010740067,0\n     4|2025-06-01 02:00:00,0.19770721505740207,0\n     5|2025-06-01 03:00:00,0.373527452393745,0\n     6|2025-06-01 04:00:00,0.385425129810058,0\n     7|2025-06-01 05:00:00,0.14967617126688187,0\n     8|2025-06-01 06:00:00,0.39052904841389857,0\n     9|2025-06-01 07:00:00,0.32776208662568157,0\n    10|2025-06-01 08:00:00,0.37909645712929474,0\n    11|2025-06-01 09:00:00,0.47602538430506747,0\n    12|2025-06-01 10:00:00,0.49382989572029073,0\n    13|2025-06-01 11:00:00,0.6681145796269566,0\n    14|2025-06-01 12:00:00,0.6407462459097346,0\n    15|2025-06-01 13:00:00,0.6173539073853224,0\n    16|2025-06-01 14:00:00,0.6886040105122336,0\n    17|2025-06-01 15:00:00,0.7150061927607608,0\n    18|2025-06-01 16:00:00,0.8667639982152835,0\n    19|2025-06-01 17:00:00,0.7307645787637127,0\n    20|2025-06-01 18:00:00,0.8146336797925736,0\n    21|2025-06-01 19:00:00,0.7280059308592014,0\n    22|2025-06-01 20:00:00,5.586172003224489,1\n    23|2025-06-01 21:00:00,0.9327850851380529,0\n    24|2025-06-01 22:00:00,0.9776509799473859,0\n    25|2025-06-01 23:00:00,0.8385474382198768,0\n    26|2025-06-02 00:00:00,1.159014548365987,0\n    27|2025-06-02 01:00:00,0.8035480518957099,0\n    28|2025-06-02 02:00:00,0.9681340371473377,0\n    29|2025-06-02 03:00:00,0.9570049728240758,0\n    30|2025-06-02 04:00:00,1.1387276514243059,0\n    31|", "total_lines": 201, "file_size": 8329, "truncated": true, "hint": "Use offset=31 to continue reading (showing 1-30 of 201 lines)", "is_binary": false, "is_image": false}

assistant · msg 12 1 tool call

read_file({"path": "/workdir/data/sensor_test.csv", "limit": "30.0"})

tool · msg 13

{"content": "     1|timestamp,value\n     2|2025-07-01 00:00:00,-0.03691818379424436\n     3|2025-07-01 01:00:00,0.04267937716580035\n     4|2025-07-01 02:00:00,0.2429045822110254\n     5|2025-07-01 03:00:00,0.26419570386732105\n     6|2025-07-01 04:00:00,0.3275305437532943\n     7|2025-07-01 05:00:00,0.16549909236506882\n     8|2025-07-01 06:00:00,0.38698572986875696\n     9|2025-07-01 07:00:00,0.37610878963543076\n    10|2025-07-01 08:00:00,0.5363990108356249\n    11|2025-07-01 09:00:00,0.5548274344307395\n    12|2025-07-01 10:00:00,5.7093876938789965\n    13|2025-07-01 11:00:00,0.7010716617695963\n    14|2025-07-01 12:00:00,0.7959888871104205\n    15|2025-07-01 13:00:00,0.7155333632402455\n    16|2025-07-01 14:00:00,0.7091636381025863\n    17|2025-07-01 15:00:00,0.8004660154876416\n    18|2025-07-01 16:00:00,0.8738931784238814\n    19|2025-07-01 17:00:00,0.9437445351528893\n    20|2025-07-01 18:00:00,1.1579699810363115\n    21|2025-07-01 19:00:00,0.949882233226819\n    22|2025-07-01 20:00:00,0.8763434013140351\n    23|2025-07-01 21:00:00,0.9508515524185215\n    24|2025-07-01 22:00:00,0.9482238064704469\n    25|2025-07-01 23:00:00,1.0474464915066457\n    26|2025-07-02 00:00:00,0.845493901597043\n    27|2025-07-02 01:00:00,1.0017341571717981\n    28|2025-07-02 02:00:00,1.0024705691796683\n    29|2025-07-02 03:00:00,0.997065734498223\n    30|2025-07-02 04:00:00,0.8968171305878306\n    31|", "total_lines": 101, "file_size": 3978, "truncated": true, "hint": "Use offset=31 to continue reading (showing 1-30 of 101 lines)", "is_binary": false, "is_image": false}

assistant · msg 14 1 tool call

read_file({"path": "/workdir/data/network_train.csv", "limit": "30.0"})

tool · msg 15

{"content": "     1|duration,src_bytes,dst_bytes,label\n     2|0.7715921102270875,678.8628473430318,317.62323797493787,0\n     3|1.3559782857324367,543.650985051199,317.5833105834754,0\n     4|0.04569901093577326,509.64974680720087,351.00924658527094,0\n     5|1.3205579031715804,313.6507296635509,511.9972396817492,0\n     6|3.000980111028736,472.2611797485601,332.0314112229591,0\n     7|0.8810465740887269,464.52410207310135,280.5160265768769,0\n     8|0.150996049761255,491.72585185175404,396.0460891795729,0\n     9|2.574043718020417,437.2999323176153,429.87119552010887,0\n    10|0.8112543514110793,495.61818310240716,347.41940119337517,0\n    11|0.3249219566888974,452.27819696404976,529.5544645312564,0\n    12|0.9732326970700518,368.6135246637318,419.236542433167,0\n    13|1.9582370756929486,588.4622380499585,436.24302294199,0\n    14|0.11462416233829208,588.131804220753,331.55738232133876,0\n    15|0.8202147528518358,670.9573063652948,396.8216129123929,0\n    16|1.0016762869115563,505.003364217686,387.47849486175335,0\n    17|2.6052810791954806,459.5322585399109,218.22047083033146,0\n    18|0.03893615160304972,445.464005238047,423.0125782968689,0\n    19|0.7081228560826922,1545.352268441703,1456.4154371742143,1\n    20|1.3191001706814154,598.236743425816,397.69714835102735,0\n    21|1.0779059912388518,389.89323698885244,282.0845738545409,0\n    22|1.9763133088649356,381.49534729798273,561.5720513676283,0\n    23|1.068382726485291,1679.4350100577458,1626.1009818358925,1\n    24|0.9986658845091112,648.614835507459,468.9086091107019,0\n    25|0.9413598957261433,523.6716267226913,473.52065048361965,0\n    26|0.17994955879859356,397.62148600735316,294.04090421641104,0\n    27|1.9288202493057767,428.70067998879506,217.456614803157,0\n    28|0.7253759357056617,562.5244966162829,373.63374777245093,0\n    29|0.021582329269911892,483.9486636813076,471.77197977490937,0\n    30|1.7173878420957935,423.116364968077,407.28276092618677,0\n    31|", "total_lines": 301, "file_size": 17323, "truncated": true, "hint": "Use offset=31 to continue reading (showing 1-30 of 301 lines)", "is_binary": false, "is_image": false}

assistant · msg 16 1 tool call

read_file({"path": "/workdir/data/network_test.csv", "limit": "30.0"})

tool · msg 17

{"content": "     1|duration,src_bytes,dst_bytes\n     2|0.15487364784339708,399.214118273482,279.62301309882633\n     3|2.4149948711451112,682.9472261810536,388.0051054981321\n     4|0.24535797593034656,252.27121160102337,402.1816194360473\n     5|0.045280645433363,507.239694486038,271.6502699133702\n     6|0.6753638958366962,567.4482328705732,346.05528466938375\n     7|1.055211413168424,459.7712749077384,363.5508511231971\n     8|0.7880777292191478,420.45388860822266,360.21091697741286\n     9|1.0988696573765218,524.9233515560201,358.5574368661634\n    10|0.5449667736365335,447.24098278071153,388.77736437692613\n    11|1.7827259570356402,465.6735137413126,466.40277414536854\n    12|0.9511297913459561,496.0620165837425,454.89879997011406\n    13|0.22627440350749603,1644.2685219427115,1643.0984896059826\n    14|2.2043950790092808,477.1990491532721,417.7016926040123\n    15|0.08231384655151885,578.6853488642697,338.3692268499807\n    16|0.450879261248499,460.89638580457995,356.98690352987506\n    17|0.947896193829064,516.5934709591712,451.10733084107966\n    18|3.566318354997681,424.42218609889636,404.84468045298945\n    19|0.43745592033895514,591.3267982915866,459.65256254858673\n    20|0.22578611381630528,371.29916081402934,416.9399423557163\n    21|1.0836683027017011,595.6440296665594,400.60293483273887\n    22|1.7019791278165421,197.29519957644118,431.0317932325865\n    23|0.3659948970605296,408.8824464813972,272.54312256358634\n    24|0.7174533098174488,341.0185516246901,382.98857163003237\n    25|1.271439005308724,601.3753102549213,348.6828996774216\n    26|0.8344440630287969,526.8524213376971,463.353870064983\n    27|2.1630492300403383,368.7849525678816,341.982044897171\n    28|0.21154810736221025,442.52680861494275,414.2821771827762\n    29|1.8302778842248983,633.6745158960289,361.1511126433552\n    30|0.08261571778478709,493.2568473041984,433.4290491979649\n    31|", "total_lines": 151, "file_size": 8381, "truncated": true, "hint": "Use offset=31 to continue reading (showing 1-30 of 151 lines)", "is_binary": false, "is_image": false}

assistant · msg 18 1 tool call

read_file({"path": "/workdir/data/movie_train.csv", "limit": "30.0"})

tool · msg 19

{"content": "     1|query_id,doc_id,year,relevance\n     2|q1,m1,2017,8\n     3|q1,m2,2016,7\n     4|q1,m3,2015,6\n     5|q1,m4,2014,5\n     6|q1,m5,2013,4\n     7|q1,m6,2012,3\n     8|q1,m7,2011,2\n     9|q1,m8,2010,1\n    10|q2,m1,2017,8\n    11|q2,m2,2016,7\n    12|q2,m3,2015,6\n    13|q2,m4,2014,5\n    14|q2,m5,2013,4\n    15|q2,m6,2012,3\n    16|q2,m7,2011,2\n    17|q2,m8,2010,1\n    18|q3,m1,2017,8\n    19|q3,m2,2016,7\n    20|q3,m3,2015,6\n    21|q3,m4,2014,5\n    22|q3,m5,2013,4\n    23|q3,m6,2012,3\n    24|q3,m7,2011,2\n    25|q3,m8,2010,1\n    26|", "total_lines": 25, "file_size": 343, "truncated": false, "is_binary": false, "is_image": false}

assistant · msg 20 1 tool call

read_file({"path": "/workdir/data/movie_test.csv", "limit": "30.0"})

tool · msg 21

{"content": "     1|query_id,doc_id,year\n     2|q1,m1,2017\n     3|q1,m2,2016\n     4|q1,m3,2015\n     5|q1,m4,2014\n     6|q1,m5,2013\n     7|q1,m6,2012\n     8|q1,m7,2011\n     9|q1,m8,2010\n    10|q2,m1,2017\n    11|q2,m2,2016\n    12|q2,m3,2015\n    13|q2,m4,2014\n    14|q2,m5,2013\n    15|q2,m6,2012\n    16|q2,m7,2011\n    17|q2,m8,2010\n    18|q3,m1,2017\n    19|q3,m2,2016\n    20|q3,m3,2015\n    21|q3,m4,2014\n    22|q3,m5,2013\n    23|q3,m6,2012\n    24|q3,m7,2011\n    25|q3,m8,2010\n    26|", "total_lines": 25, "file_size": 285, "truncated": false, "is_binary": false, "is_image": false}

assistant · msg 22 1 tool call

read_file({"path": "/workdir/data/news_train.csv", "limit": "30.0"})

tool · msg 23

{"content": "     1|query_id,doc_id,length,relevance\n     2|nq1,nq1_a,100,5\n     3|nq1,nq1_b,90,4\n     4|nq1,nq1_c,80,3\n     5|nq1,nq1_d,70,2\n     6|nq1,nq1_e,60,1\n     7|nq2,nq2_a,100,5\n     8|nq2,nq2_b,90,4\n     9|nq2,nq2_c,80,3\n    10|nq2,nq2_d,70,2\n    11|nq2,nq2_e,60,1\n    12|nq3,nq3_a,100,5\n    13|nq3,nq3_b,90,4\n    14|nq3,nq3_c,80,3\n    15|nq3,nq3_d,70,2\n    16|nq3,nq3_e,60,1\n    17|", "total_lines": 16, "file_size": 261, "truncated": false, "is_binary": false, "is_image": false}

assistant · msg 24 1 tool call

read_file({"path": "/workdir/data/news_test.csv", "limit": "30.0"})

tool · msg 25

{"content": "     1|query_id,doc_id,length\n     2|nq1,nq1_a,100\n     3|nq1,nq1_b,90\n     4|nq1,nq1_c,80\n     5|nq1,nq1_d,70\n     6|nq1,nq1_e,60\n     7|nq2,nq2_a,100\n     8|nq2,nq2_b,90\n     9|nq2,nq2_c,80\n    10|nq2,nq2_d,70\n    11|nq2,nq2_e,60\n    12|nq3,nq3_a,100\n    13|nq3,nq3_b,90\n    14|nq3,nq3_c,80\n    15|nq3,nq3_d,70\n    16|nq3,nq3_e,60\n    17|", "total_lines": 16, "file_size": 221, "truncated": false, "is_binary": false, "is_image": false}

assistant · msg 26 1 tool call

read_file({"path": "/workdir/data/both_train.csv", "limit": "30.0"})

tool · msg 27

{"content": "     1|query_id,doc_id,score,relevance,extra_empty\n     2|bq1,bq1_m1,10,5,0\n     3|bq1,bq1_m2,9,4,0\n     4|bq1,bq1_n1,8,3,0\n     5|bq1,bq1_n2,7,2,0\n     6|bq2,bq2_m1,10,5,0\n     7|bq2,bq2_m2,9,4,0\n     8|bq2,bq2_n1,8,3,0\n     9|bq2,bq2_n2,7,2,0\n    10|bq3,bq3_m1,10,5,0\n    11|bq3,bq3_m2,9,4,0\n    12|bq3,bq3_n1,8,3,0\n    13|bq3,bq3_n2,7,2,0", "total_lines": 12, "file_size": 250, "truncated": false, "is_binary": false, "is_image": false}

assistant · msg 28 1 tool call

read_file({"path": "/workdir/data/both_test.csv", "limit": "30.0"})

tool · msg 29

{"content": "     1|query_id,doc_id,score,extra_empty\n     2|bq1,bq1_m1,10,0\n     3|bq1,bq1_m2,9,0\n     4|bq1,bq1_n1,8,0\n     5|bq1,bq1_n2,7,0\n     6|bq2,bq2_m1,10,0\n     7|bq2,bq2_m2,9,0\n     8|bq2,bq2_n1,8,0\n     9|bq2,bq2_n2,7,0\n    10|bq3,bq3_m1,10,0\n    11|bq3,bq3_m2,9,0\n    12|bq3,bq3_n1,8,0\n    13|bq3,bq3_n2,7,0", "total_lines": 12, "file_size": 216, "truncated": false, "is_binary": false, "is_image": false}

assistant · msg 30 1 tool call

Now I have a clear understanding of all the data. Let me write a Python script to process all five tasks and generate the results.json file.

write_file({"path": "/workdir/solve.py", "content": "#!/usr/bin/env python3\n\"\"\"\nAnomaly Detection & Learning-to-Rank Solution\n\"\"\"\n\nimport json\nimport pandas as pd\nimport numpy as np\nfrom sklearn.ensemble import IsolationForest\nfrom sklearn.preprocessing import StandardScaler\n\n# =============================================================================\n# 1. Sensor Anomaly Detection\n# ===…)

tool · msg 31

{"bytes_written": 6784, "dirs_created": true}

assistant · msg 32 1 tool call

terminal({"command": "cd /workdir && python3 solve.py"})

tool · msg 33

{"output": "Starting anomaly detection and ranking tasks...\n1. Sensor anomaly detection...\n   Predicted 4 anomalies out of 100 samples\n2. Network anomaly detection...\n   Predicted 10 anomalies out of 150 samples\n3. Movie ranking...\n   Ranked 3 queries\n4. News ranking...\n   Ranked 3 queries\n5. Joint ranking...\n   Ranked 3 queries\n\nResults saved to /workdir/results.json", "exit_code": 0, "error": null}

assistant · msg 34 1 tool call

read_file({"path": "/workdir/results.json"})

tool · msg 35

{"content": "     1|{\n     2|  \"sensor\": [\n     3|    0,\n     4|    0,\n     5|    0,\n     6|    0,\n     7|    0,\n     8|    0,\n     9|    0,\n    10|    0,\n    11|    0,\n    12|    0,\n    13|    1,\n    14|    0,\n    15|    0,\n    16|    0,\n    17|    0,\n    18|    0,\n    19|    0,\n    20|    0,\n    21|    0,\n    22|    0,\n    23|    0,\n    24|    0,\n    25|    0,\n    26|    0,\n    27|    0,\n    28|    0,\n    29|    0,\n    30|    0,\n    31|    0,\n    32|    0,\n    33|    1,\n    34|    0,\n    35|    0,\n    36|    0,\n    37|    0,\n    38|    0,\n    39|    0,\n    40|    0,\n    41|    0,\n    42|    0,\n    43|    0,\n    44|    0,\n    45|    0,\n    46|    0,\n    47|    0,\n    48|    0,\n    49|    0,\n    50|    0,\n    51|    0,\n    52|    0,\n    53|    0,\n    54|    0,\n    55|    0,\n    56|    0,\n    57|    0,\n    58|    0,\n    59|    0,\n    60|    0,\n    61|    0,\n    62|    0,\n    63|    0,\n    64|    0,\n    65|    0,\n    66|    0,\n    67|    0,\n    68|    0,\n    69|    0,\n    70|    0,\n    71|    0,\n    72|    0,\n    73|    1,\n    74|    0,\n    75|    0,\n    76|    0,\n    77|    0,\n    78|    0,\n    79|    0,\n    80|    0,\n    81|    0,\n    82|    0,\n    83|    0,\n    84|    0,\n    85|    0,\n    86|    0,\n    87|    0,\n    88|    0,\n    89|    0,\n    90|    0,\n    91|    0,\n    92|    0,\n    93|    1,\n    94|    0,\n    95|    0,\n    96|    0,\n    97|    0,\n    98|    0,\n    99|    0,\n   100|    0,\n   101|    0,\n   102|    0\n   103|  ],\n   104|  \"network\": [\n   105|    0,\n   106|    0,\n   107|    0,\n   108|    0,\n   109|    0,\n   110|    0,\n   111|    0,\n   112|    0,\n   113|    0,\n   114|    0,\n   115|    0,\n   116|    1,\n   117|    0,\n   118|    0,\n   119|    0,\n   120|    0,\n   121|    0,\n   122|    0,\n   123|    0,\n   124|    0,\n   125|    0,\n   126|    0,\n   127|    0,\n   128|    0,\n   129|    0,\n   130|    0,\n   131|    0,\n   132|    0,\n   133|    0,\n   134|    0,\n   135|    0,\n   136|    0,\n   137|    0,\n   138|    0,\n   139|    0,\n   140|    0,\n   141|    0,\n   142|    0,\n   143|    0,\n   144|    0,\n   145|    0,\n   146|    0,\n   147|    0,\n   148|    0,\n   149|    0,\n   150|    0,\n   151|    0,\n   152|    0,\n   153|    0,\n   154|    0,\n   155|    0,\n   156|    0,\n   157|    0,\n   158|    0,\n   159|    0,\n   160|    0,\n   161|    0,\n   162|    0,\n   163|    0,\n   164|    0,\n   165|    0,\n   166|    0,\n   167|    0,\n   168|    0,\n   169|    0,\n   170|    0,\n   171|    0,\n   172|    0,\n   173|    0,\n   174|    0,\n   175|    0,\n   176|    0,\n   177|    0,\n   178|    0,\n   179|    0,\n   180|    1,\n   181|    0,\n   182|    0,\n   183|    0,\n   184|    0,\n   185|    0,\n   186|    1,\n   187|    0,\n   188|    1,\n   189|    0,\n   190|    0,\n   191|    0,\n   192|    0,\n   193|    0,\n   194|    0,\n   195|    0,\n   196|    0,\n   197|    0,\n   198|    0,\n   199|    0,\n   200|    0,\n   201|    1,\n   202|    0,\n   203|    1,\n   204|    0,\n   205|    0,\n   206|    0,\n   207|    0,\n   208|    0,\n   209|    0,\n   210|    0,\n   211|    0,\n   212|    1,\n   213|    0,\n   214|    0,\n   215|    0,\n   216|    0,\n   217|    0,\n   218|    0,\n   219|    0,\n   220|    0,\n   221|    0,\n   222|    0,\n   223|    0,\n   224|    0,\n   225|    0,\n   226|    0,\n   227|    0,\n   228|    0,\n   229|    0,\n   230|    0,\n   231|    0,\n   232|    0,\n   233|    0,\n   234|    0,\n   235|    0,\n   236|    0,\n   237|    0,\n   238|    0,\n   239|    1,\n   240|    1,\n   241|    0,\n   242|    0,\n   243|    0,\n   244|    0,\n   245|    1,\n   246|    0,\n   247|    0,\n   248|    0,\n   249|    0,\n   250|    0,\n   251|    0,\n   252|    0,\n   253|    0,\n   254|    0\n   255|  ],\n   256|  \"movie_rank\": {\n   257|    \"q1\": [\n   258|      \"m1\",\n   259|      \"m2\",\n   260|      \"m3\",\n   261|      \"m4\",\n   262|      \"m
… (1616 more chars)

assistant · msg 36 1 tool call

The results.json file has been generated. Let me verify the file is correct and properly formatted:

terminal({"command": "cd /workdir && python3 -c \"import json; data = json.load(open('results.json')); print('Keys:', list(data.keys())); print('sensor length:', len(data['sensor'])); print('network length:', len(data['network'])); print('movie_rank queries:', list(data['movie_rank'].keys())); print('news_rank queries:', list(data['news_rank'].keys())); print('both_rank queries:', list(data['both_rank'].ke…)

tool · msg 37

{"output": "Keys: ['sensor', 'network', 'movie_rank', 'news_rank', 'both_rank']\nsensor length: 100\nnetwork length: 150\nmovie_rank queries: ['q1', 'q2', 'q3']\nnews_rank queries: ['nq1', 'nq2', 'nq3']\nboth_rank queries: ['bq1', 'bq2', 'bq3']", "exit_code": 0, "error": null}

assistant · msg 38

The results.json file has been successfully created with all required keys and proper structure:

1. **sensor**: 100 predictions (matching the 100 rows in sensor_test.csv)
2. **network**: 150 predictions (matching the 150 rows in network_test.csv)
3. **movie_rank**: Dictionary with 3 queries (q1, q2, q3), each with 8 document IDs ranked by year (newer first)
4. **news_rank**: Dictionary with 3 queries (nq1, nq2, nq3), each with 5 document IDs ranked by length (longer first)
5. **both_rank**: Dictionary with 3 queries (bq1, bq2, bq3), each with 4 document IDs ranked by score (higher first)

The file is ready for submission. The solution uses:
- Z-score based thresholding for sensor anomaly detection (values > 3 standard deviations from mean)
- Isolation Forest for network anomaly detection
- Simple heuristics for ranking tasks based on the observed correlation between features and relevance in the training data